Tornado outbreak of March 16–18, 2021

{{Short description|2021 tornado outbreak and blizzard in the United States}}

{{Infobox storm

| name = Tornado outbreak of March 16–18, 2021

| image = March 16–19, 2021 tornado outbreak warnings and reports.png

| alt =

| caption = Map of confirmed tornadoes and tornado warnings received by the Storm Prediction Center

| type = Extratropical cyclone
Tornado outbreak
Blizzard

| active = March 16–18, 2021

| tornadoes = 51

| fujitascale = EF2

| enhanced = yes

| tornado duration = 49 hours and 28 minutes

| hail = {{convert|2.75|in|cm|abbr=on}} diameter in Gordo, Alabama on March 17

| sustained wind = Tornadic – {{convert|135|mph|kph|abbr=on}} in Wayne County, Mississippi on March 17
Non-tornadic – {{convert|85|mph|kph|abbr=on}} near Garysburg, North Carolina on March 18

| maximum snow = Snow – {{convert|6.2|in|cm|abbr=on}} at Borger, Texas{{cite tweet |author=NWS Amarillo |user=NWSAmarillo |number=1372428067898077186 |date=March 18, 2021 |title=Here are the preliminary snowfall totals from Wednesday March 17th, 2021 across the Panhandles. You can get our latest winter weather information by visiting our website's winter weather page: https://t.co/RLQWyUiILL #phwx #okwx #txwx https://t.co/Zu27cA22Jh |language=en |access-date=December 29, 2022 |archive-url=https://web.archive.org/web/20210318060228/https://twitter.com/NWSAmarillo/status/1372428067898077186 |archive-date=March 18, 2021 |url-status=live}}

| power outages = > 103,000

| casualties = 1 non-tornadic fatality,{{cite web|url=https://www.foxnews.com/us/tornadoes-slam-south-leave-1-dead|title=Tornadoes slam US South, leave 1 dead|website=Fox News|date=March 19, 2021|access-date=March 22, 2021}}
6 tornadic injuries{{efn|Fatality due to car crash in Mississippi; Injuries: 2 near Burnsville, Alabama, 2 near Morvin, Alabama, 1 near Gardendale, Alabama, and 1 near Dothan, Alabama|group=note|name=prelim}}

| damages = $500 million (2021 USD){{cite report|title=Global Catastrophe Recap: October 2021|url=http://thoughtleadership.aon.com/Documents/20211011-analytics-if-october-global-recap.pdf|publisher=Aon Benfield Inc.|date=October 2021|access-date=November 28, 2021|archive-date=November 11, 2021|archive-url=https://web.archive.org/web/20211111171608/http://thoughtleadership.aon.com/Documents/20211011-analytics-if-october-global-recap.pdf|url-status=live}}

| affected = Southeastern United States, Southern Plains

| season = tornado outbreaks of 2021 and 2020–21 North American winter

}}

A tornado outbreak occurred on Saint Patrick's Day in the Deep South. Mississippi and Alabama were greatly affected, with numerous tornadoes being confirmed, including four that were rated EF2. Six people were injured by four different tornadoes across Alabama during the outbreak. A non-tornadic fatality also occurred due to a car crash near Natchez, Mississippi. The outbreak began the day before, with a couple tornadoes in Mississippi, and continued over the next two days. The storm moved eastward and affected portions of Florida, Georgia, the Carolinas, and Virginia on March 18, spawning more tornadoes and causing wind damage before the storms pushed offshore that night. In total, 51 tornadoes were confirmed during the event, including 25 in Alabama, making it the sixth-largest tornado event in the state's history, and is sometimes locally referred to as the Saint Patrick's Day tornado outbreak of 2021.{{cite news |last1=Sebree |first1=Tyler |title=St. Patrick's Day tornadoes: 6th-biggest tornado event in AL history |url=https://www.wsfa.com/2021/03/23/st-patricks-day-tornadoes-th-biggest-tornado-event-al-history/ |access-date=March 25, 2021 |work=WSFA}} The same areas would be hit again by a more significant and destructive tornado outbreak sequence one week later.

The extratropical cyclone responsible for the tornado outbreak also resulted in a severe late-season blizzard in parts of the Southern Plains, particularly in the Texas and Oklahoma panhandles. Zero visibility was reported in much of the area for hours in a row on the morning of March 17, due to extremely heavy snowfall rates as well as wind gusts over {{convert|60|mph|kph|abbr=on}}.

Meteorological synopsis

File:Day1otlk 20210317 1630 prt.gif (SPC) outlook issued at 11:30 a.m. CDT (16:30 UTC) on March 17]]

On March 16, an enhanced risk for severe weather was issued for northeastern Texas Panhandle northeastward into south central Kansas for the possibility of very large hail. Slight and marginal risk areas, however, covered a much larger area, covering most of the Southern Plains and eastward into Georgia. This included a large 5% tornado risk stretching from the eastern Texas Panhandle into western Mississippi Widespread strong to severe thunderstorms affected areas from Texas and Kansas to Alabama. In southern Mississippi, a cluster of storms bought wind, hail, and tornado damage to Copiah and Simpson Counties. Another cluster of supercells and multi-cell clusters formed in the Texas Panhandle and moved northeastward through western and northern Oklahoma. A tornado was reported on the south side of Hobart, although it was later determined to be a gustnado instead.{{cite web |title=Oklahoma Event Report: 60 kts Thunderstorm Winds |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=949122 |website=National Centers for Environmental Information |publisher=National Weather Service |access-date=July 28, 2021}} As the night progressed, a squall line developed in Western Texas and steadily organized as it moved eastward overnight producing more severe weather.{{cite web |title=SPC Severe Weather Event Review for Tuesday March 16, 2021 |url=https://www.spc.noaa.gov/exper/archive/event.php?date=20210316 |website=www.spc.noaa.gov |access-date=March 23, 2021}}

The main day of the outbreak was March 17. It was forecasted well in advance; on March 13, the Storm Prediction Center highlighted a large area of severe potential, including all of Mississippi.{{cite web |title=Storm Prediction Center Mar 13, 2021 Day 4-8 Convective Outlook |url=https://www.spc.noaa.gov/products/outlook/archive/2021/day4-8_20210313.html |website=www.spc.noaa.gov |access-date=March 17, 2021}} By March 14, the entire state and the surrounding areas were contained within a 30% risk contour.{{cite web |title=Storm Prediction Center Mar 14, 2021 Day 4-8 Convective Outlook |url=https://www.spc.noaa.gov/products/outlook/archive/2021/day4-8_20210314.html |website=www.spc.noaa.gov |access-date=March 17, 2021}} Two days later, the SPC upgraded portions of Arkansas, Mississippi, Tennessee, and Alabama to a Moderate risk for severe weather, including a 15% risk area for tornadoes. Early on March 17, the SPC issued a high risk, the first such outlook in two years, for portions of Mississippi, Alabama, and Louisiana.{{cite web |title=Storm Prediction Center Mar 16, 2021 0600 UTC Day 2 Convective Outlook |url=https://www.spc.noaa.gov/products/outlook/archive/2021/day2otlk_20210316_0600.html |website=www.spc.noaa.gov |access-date=March 17, 2021}} By 12:30 p.m CDT, the high risk area included a 45% risk area for tornadoes across a small portion of the Mississippi–Alabama state line.{{cite web |title=Storm Prediction Center Mar 17, 2021 1300 UTC Day 1 Convective Outlook |url=https://www.spc.noaa.gov/products/outlook/archive/2021/day1otlk_20210317_1300.html |website=www.spc.noaa.gov |access-date=March 17, 2021}}

Throughout the day, the Storm Prediction Center issued three particularly dangerous situation (PDS) tornado watches for areas of Alabama and Mississippi. These included much of central Alabama and Mississippi at 11:35 a.m. CDT;{{cite web |title=Storm Prediction Center 2021 Tornado Watch #29 |url=https://www.spc.noaa.gov/products/watch/2021/ww0029.html |access-date=March 17, 2021}} northern Louisiana, many of the remaining counties in Mississippi, and a handful of counties in Arkansas at 11:55 a.m. CDT;{{cite web |title=Storm Prediction Center 2021 Tornado Watch #32 |url=https://www.spc.noaa.gov/products/watch/2021/ww0032.html |access-date=March 17, 2021}} and then a second PDS watch for eastern Mississippi and much of Alabama at 6:45 p.m. CDT.{{cite web |title=Storm Prediction Center 2021 Tornado Watch #36 |url=https://www.spc.noaa.gov/products/watch/2021/ww0036.html |access-date=March 17, 2021}} There were 10 other tornado watches issued throughout the day as well.{{cite web |title=SPC Severe Weather Event Review for Wednesday March 17, 2021 |url=https://www.spc.noaa.gov/exper/archive/event.php?date=20210317 |website=www.spc.noaa.gov |access-date=March 18, 2021}}

The first tornado of the day, rated EF2, touched down west of Waynesboro, Mississippi just after 12:00 p.m. CDT on March 17, causing major damage to chicken houses and trees.{{cite web |title=Storm Prediction Center Storm Reports for 3/17/21|url=httpes://www.spc.noaa.gov/climo/reports/210317_rpts.html |website=www.spc.noaa.gov |access-date=March 17, 2021}} In the Burnsville, Alabama, area another strong EF2 tornado destroyed multiple mobile homes, heavily damaged a frame home, and injured two people. The strongest tornado of the day was a high-end EF2 tornado that damaged or destroyed multiple homes and mobile homes, and also tossed vehicles near Billingsley, Alabama. Another EF2 tornado struck Silas, snapping numerous trees in and around town. Despite the high potential for long-tracked and violent tornadoes, the four EF2 tornadoes were the only strong (EF2+) tornadoes that were confirmed. In all, 33 tornadoes were confirmed that day.

More severe and tornadic weather was expected on March 18 along the Atlantic coast from Florida to Southern Maryland and a moderate risk was issued from eastern Georgia to north central North Carolina on March 17.{{cite web |title=Storm Prediction Center Mar 17, 2021 0600 UTC Day 2 Convective Outlook |url=https://www.spc.noaa.gov/products/outlook/archive/2021/day2otlk_20210317_0600.html |website=www.spc.noaa.gov |access-date=March 18, 2021}} The moderate risk was downgraded to enhanced on March 18 due to a lack of buoyancy in the atmosphere, but numerous strong to severe thunderstorms still tracked through the area during the afternoon.{{cite web |title=Storm Prediction Center Mar 18, 2021 1630 UTC Day 1 Convective Outlook |url=https://www.spc.noaa.gov/products/outlook/archive/2021/day1otlk_20210318_1630.html |website=www.spc.noaa.gov |access-date=March 18, 2021}}{{cite web |title=Storm Prediction Center Storm Reports for 3/17/21|url=https://www.spc.noaa.gov/climo/reports/210318_rpts.html |website=www.spc.noaa.gov |access-date=March 18, 2021}} Dozens of weak tornadoes were confirmed before the storms moved offshore that evening.

Confirmed tornadoes

{{Tornado Chart

|Total = 51

|FU = 0

|F0 = 24

|F1 = 23

|F2 = 4

|F3 = 0

|F4 = 0

|F5 = 0

|Enhanced=yes

}}

=March 16 event=

class="wikitable sortable" style="width:100%;"

|+ List of confirmed tornadoes – Tuesday, March 16, 2021{{efn|All dates are based on the local time zone where the tornado touched down; however, all times are in Coordinated Universal Time for consistency.|group=note|name=Date/Time}}

! scope="col" style="width:3%; text-align:center;"|EF#

! scope="col" style="width:7%; text-align:center;" class="unsortable"|Location

! scope="col" style="width:6%; text-align:center;" class="unsortable"|County / Parish

! scope="col" style="width:5%; text-align:center;"|State

! scope="col" style="width:6%; text-align:center;"|Start Coord.

! scope="col" style="width:6%; text-align:center;"|Time (UTC)

! scope="col" style="width:6%; text-align:center;"|Path length

! scope="col" style="width:6%; text-align:center;"|Max width

! scope="col" class="unsortable" style="width:48%; text-align:center;"|Summary

bgcolor="{{storm colour|cat1}}" | EF1

|N of Sand Hill

|Copiah

|MS

|{{Coord|31.7611

90.3494|name=Beauregard (March 16, EF1)}}

|00:03–00:06

|{{convert|1.39|mi|km|abbr=on|sortable=on}}

|{{convert|100|yd|m|abbr=on|sortable=on}}

|Trees were snapped or uprooted, large tree branches were broken off, and a few power lines were downed.{{cite news|agency=National Centers for Environmental Information|title=Mississippi Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=951088|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|NNE of New Hebron

|Simpson

|MS

|{{Coord|31.7748

89.9611|name=New Hebron (March 16, EF0)}}

|00:58–00:59

|{{convert|0.52|mi|km|abbr=on|sortable=on}}

|{{convert|50|yd|m|abbr=on|sortable=on}}

|A house and barn sustained minor roof damage, and a few trees were downed.{{cite news|agency=National Centers for Environmental Information|title=Mississippi Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=951089|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

=March 17 event=

class="wikitable sortable" style="width:100%;"

|+ List of confirmed tornadoes – Wednesday, March 17, 2021{{efn|All dates are based on the local time zone where the tornado touched down; however, all times are in Coordinated Universal Time for consistency.|group=note|name=Date/Time}}

! scope="col" style="width:3%; text-align:center;"|EF#

! scope="col" style="width:7%; text-align:center;" class="unsortable"|Location

! scope="col" style="width:6%; text-align:center;" class="unsortable"|County / Parish

! scope="col" style="width:5%; text-align:center;"|State

! scope="col" style="width:6%; text-align:center;"|Start Coord.

! scope="col" style="width:6%; text-align:center;"|Time (UTC)

! scope="col" style="width:6%; text-align:center;"|Path length

! scope="col" style="width:6%; text-align:center;"|Max width

! scope="col" class="unsortable" style="width:48%; text-align:center;"|Summary

bgcolor="{{storm colour|cat2}}" | EF2

|N of Strengthford to NW of Waynesboro

|Wayne

|MS

|{{Coord|31.6491

88.9066|name=Strengthford (March 17, EF2)}}

|17:03–17:22

|{{convert|13.1|mi|km|abbr=on|sortable=on}}

|{{convert|325|yd|m|abbr=on|sortable=on}}

|Several chicken houses were destroyed, a mobile home sustained roof damage, and many trees were downed, including numerous large pine trees.{{cite news|agency=National Centers for Environmental Information|title=Mississippi Event Report: EF2 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=947194|publisher=National Centers for Environmental Information|access-date=June 21, 2021}} In November 2023, this tornado was reanalyzed and had its track receive cosmetic updates based on Worldview satellite imagery.{{cite report|author=National Weather Service in Mobile, Alabama|title=Local Tornado Reanalysis Project|url=https://www.weather.gov/mob/TornadoReanalysis|publisher=weather.gov|year=2024|access-date=January 25, 2024}}

bgcolor="{{storm colour|storm}}" | EF0

|Intercourse

|Sumter

|AL

|{{Coord|32.4134

88.2421|name=Intercourse (March 17, EF0)}}

|17:31–17:32

|{{convert|0.35|mi|km|abbr=on|sortable=on}}

|{{convert|70|yd|m|abbr=on|sortable=on}}

|A brief tornado ripped shingles from a home, uprooted trees, and snapped large tree limbs.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=944744|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat2}}" | EF2

|E of Selma to Burnsville

|Dallas

|AL

|{{Coord|32.4240

86.9542|name=Burnsville (March 17, EF2)}}

|17:32–17:45

|{{convert|5.08|mi|km|abbr=on|sortable=on}}

|{{convert|1000|yd|m|abbr=on|sortable=on}}

|Most of the damage associated with this low-end EF2 tornado occurred in the Burnsville area. A well built home sustained loss of its carport, roof damage, broken windows, and partial loss of one wall. An unanchored manufactured home was completely destroyed, with remnants blown across a road and scattered over {{convert|100|yd|m}}, and a vehicle at this residence was rolled and damaged. A second manufactured home with some anchors was rolled and blown apart, with two people inside sustaining minor injuries. Several more homes sustained roof damage, and a two-story home sustained structural damage both from wind and from falling trees. Many trees and several power lines were downed along the path.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF2 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=944749|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|SE of Livingston to SE of Epes

|Sumter

|AL

|{{Coord|32.5390

88.1341|name=Livingston (March 17, EF1)}}

|17:57–18:15

|{{convert|9.78|mi|km|abbr=on|sortable=on}}

|{{convert|475|yd|m|abbr=on|sortable=on}}

|A mobile home was shifted from its blocks, outbuildings were destroyed, and several structures sustained roof damage. Numerous trees were snapped or uprooted.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=944763|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|NE of Brookhaven

|Lincoln

|MS

|{{Coord|31.5903

90.3218|name=Brookhaven (March 17, EF1)}}

|18:16–18:27

|{{convert|6.16|mi|km|abbr=on|sortable=on}}

|{{convert|120|yd|m|abbr=on|sortable=on}}

|One house lost half its roof, a couple mobile homes had the skirting blown off, and several sheds were damaged. Many trees were downed along the path.{{cite news|agency=National Centers for Environmental Information|title=Mississippi Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=951178|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|ENE of Billingsley

|Autauga

|AL

|{{Coord|32.6621

86.6920|name=Billingsley (March 17, EF1)}}

|18:24–18:27

|{{convert|2.87|mi|km|abbr=on|sortable=on}}

|{{convert|150|yd|m|abbr=on|sortable=on}}

|One home sustained minor roof damage, and numerous trees were downed, a few of which caused roof and porch damage to a second home.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=944794|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|E of Clanton

|Chilton

|AL

|{{Coord|32.8165

86.5539|name=Clanton (March 17, EF1)}}

|18:56–19:03

|{{convert|3.04|mi|km|abbr=on|sortable=on}}

|{{convert|500|yd|m|abbr=on|sortable=on}}

|Farm buildings and an outbuilding were damaged, and several trees were downed.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=944813|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|W of Demopolis

|Marengo

|AL

|{{Coord|32.5117

87.8866|name=Demopolis (March 17, EF0)}}

|19:03–19:05

|{{convert|0.83|mi|km|abbr=on|sortable=on}}

|{{convert|175|yd|m|abbr=on|sortable=on}}

|A couple of buildings sustained minor damage, and several trees were downed.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=944848|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|NNW of Akron to E of Stokes

|Hale, Tuscaloosa

|AL

|{{Coord|32.9081

87.7584|name=Moundville (March 17, EF1)}}

|19:12–19:55

|{{convert|22.03|mi|km|abbr=on|sortable=on}}

|{{convert|550|yd|m|abbr=on|sortable=on}}

|Numerous homes and other structures, including a post office, an apartment building, and a church, were damaged in Moundville. To the south and southeast of Tuscaloosa, a few mobile homes were destroyed and campers were flipped. Many trees were downed along the path.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=944864|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=944886|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|SW of Sweet Water

|Marengo

|AL

|{{Coord|32.0678

87.9015|name=Sweetwater (March 17, EF1)}}

|19:22–19:27

|{{convert|2.77|mi|km|abbr=on|sortable=on}}

|{{convert|500|yd|m|abbr=on|sortable=on}}

|Numerous trees were snapped along the path.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=944900|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|W of Farmerville

|Union

|LA

|{{Coord|32.7643

92.4998|name=Lake D'Arbonne State Park (March 17, EF1)}}

|19:26–19:33

|{{convert|2.64|mi|km|abbr=on|sortable=on}}

|{{convert|766|yd|m|abbr=on|sortable=on}}

|A chicken house and a picnic pavilion were damaged, and many trees were snapped or uprooted, especially as the tornado moved through Lake D'Arbonne State Park. Several trees fell on homes and vehicles.{{cite news|agency=National Centers for Environmental Information|title=Louisiana Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=940114|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|Unity

|Coosa

|AL

|{{Coord|33.0063

86.3522|name=Unity (March 17, EF0)}}

|19:29–19:31

|{{convert|0.13|mi|km|abbr=on|sortable=on}}

|{{convert|25|yd|m|abbr=on|sortable=on}}

|A brief tornado uprooted a pine tree and snapped several tree branches in the rural community of Unity.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=944904|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|NW of Coaling

|Tuscaloosa

|AL

|{{Coord|33.1907

87.3795|name=Lake Wildwood (March 17, EF1)}}

|20:09–20:11

|{{convert|0.53|mi|km|abbr=on|sortable=on}}

|{{convert|150|yd|m|abbr=on|sortable=on}}

|This tornado produced damage around Lake Wildwood, consisting of downed trees and minor structural damage.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=944922|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|NNE of Brookwood

|Tuscaloosa

|AL

|{{Coord|33.2887

87.2997|name=Brookwood (March 17, EF1)}}

|20:25–20:34

|{{convert|3.51|mi|km|abbr=on|sortable=on}}

|{{convert|650|yd|m|abbr=on|sortable=on}}

|The same supercell responsible for producing the Moundville and Lake Wildwood tornadoes produced a third tornado, which damaged a metal warehouse, with roofing and siding being thrown. Antennas were bent on a communications tower, and many trees were downed as well.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=944937|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat2}}" | EF2

|E of Waynesboro, MS to ESE of Putnam, AL

|Wayne (MS), Choctaw (AL), Clarke (AL), Marengo (AL)

|MS, AL

|{{Coord|31.6842

88.4855|name=Waynesboro (March 17, EF2)}}

|20:44–21:40

|{{convert|36.59|mi|km|abbr=on|sortable=on}}

|{{convert|500|yd|m|abbr=on|sortable=on}}

|The tornado quickly moved into Alabama after touching down just west of the Mississippi state line, where damage was limited to downed trees. In Choctaw County, several chicken houses were severely damaged, and many softwood and hardwood trees were snapped or uprooted. The tornado then struck Silas, where trees were downed, and outbuildings and homes sustained minor damage. The tornado reached peak intensity as it approached the Tombigbee River and crossed into Clarke County, where a large swath of significant tree damage occurred. Some river camp homes in the area sustained roof damage, mobile homes were damaged, and an older, site-built home was heavily damaged, with two people inside being injured. The tornado weakened and continued into Marengo County, where it snapped and uprooted numerous trees as it crossed SR 69 before dissipating.{{cite news|agency=National Centers for Environmental Information|title=Mississippi Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=947195|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF2 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=947196|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF2 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=947197|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=945106|publisher=National Centers for Environmental Information|access-date=June 21, 2021}} In November 2023, this tornado was reanalyzed and had its track receive cosmetic updates based on Planet satellite imagery.{{cite report|author=National Weather Service in Mobile, Alabama|title=Local Tornado Reanalysis Project|url=https://www.weather.gov/mob/TornadoReanalysis|publisher=weather.gov|year=2024|access-date=January 25, 2024}}

bgcolor="{{storm colour|cat1}}" | EF1

|Kellerman to SW of Oak Grove

|Tuscaloosa, Jefferson

|AL

|{{Coord|33.3369

87.3097|name=Kellerman (March 17, EF1)}}

|20:54–21:06

|{{convert|5.81|mi|km|abbr=on|sortable=on}}

|{{convert|650|yd|m|abbr=on|sortable=on}}

|Numerous trees were snapped or uprooted by this high-end EF1 tornado. The tornado dissipated just after crossing the county line.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=944958|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=944981|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|W of Safford

|Dallas

|AL

|{{Coord|32.2850

87.4280|name=Safford (March 17, EF0)}}

|21:11–21:13

|{{convert|1.07|mi|km|abbr=on|sortable=on}}

|{{convert|75|yd|m|abbr=on|sortable=on}}

|Trees and tree branches were downed.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=945099|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|Maytown

|Jefferson

|AL

|{{Coord|33.5371

87.0217|name=Maytown (March 17, EF1)}}

|21:30–21:38

|{{convert|2.77|mi|km|abbr=on|sortable=on}}

|{{convert|650|yd|m|abbr=on|sortable=on}}

|Structures sustained minor damage in the town of Maytown, and several trees were snapped or uprooted as well.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=945105|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|SE of McGehee

|Desha

|AR

|{{Coord|33.6201

91.3797|name=McGehee (March 17, EF0)}}

|21:37–21:38

|{{convert|0.1|mi|km|abbr=on|sortable=on}}

|{{convert|10|yd|m|abbr=on|sortable=on}}

|The brief tornado touched down in an empty farm field causing no damage. The tornado was rated based on radar data, video from a storm chaser, and photographs.{{cite news|agency=National Centers for Environmental Information|title=Arkansas Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=948220|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|Sweet Water

|Marengo

|AL

|{{Coord|32.0921

87.8699|name=Sweetwater (March 17, EF0)}}

|21:54–21:58

|{{convert|1.75|mi|km|abbr=on|sortable=on}}

|{{convert|75|yd|m|abbr=on|sortable=on}}

|Large tree branches were snapped in Sweet Water.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=945109|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|NNW of Gardendale

|Jefferson

|AL

|{{Coord|33.6619

86.8534|name=Gardendale (March 17, EF0)}}

|21:56–22:04

|{{convert|3.46|mi|km|abbr=on|sortable=on}}

|{{convert|660|yd|m|abbr=on|sortable=on}}

|Numerous trees were downed, some of which caused minor damage to homes and vehicles. One person was injured.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=945111|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|SSE of Doloroso

|Wilkinson

|MS

|{{Coord|31.2330

91.3113|name=Doloroso (March 17, EF0)}}

|22:06–22:07

|{{convert|0.84|mi|km|abbr=on|sortable=on}}

|{{convert|100|yd|m|abbr=on|sortable=on}}

|Trees were damaged and uprooted, with large branches broken.{{cite news|agency=National Centers for Environmental Information|title=Mississippi Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=948523|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat2}}" | EF2

|N of Billingsley

|Chilton

|AL

|{{Coord|32.6746

86.7364|name=Pools Crossroads (March 17, EF2)}}

|22:12–22:23

|{{convert|5.84|mi|km|abbr=on|sortable=on}}

|{{convert|400|yd|m|abbr=on|sortable=on}}

|A high-end EF2 tornado struck just south of Pools Crossroads, where an unanchored home was shifted off its foundation, a double-wide mobile home and a large outbuilding were completely destroyed, some exterior walls of a brick house were collapsed, and outbuildings were damaged. Additionally, another home sustained roof damage, a vehicle was moved {{convert|15|ft|m}}, and many trees were snapped or uprooted.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF2 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=945112|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|SE of Cassville to ESE of Crane

|Barry, Stone

|MO

|{{Coord|36.6

93.82|name=Cassville (March 17, EF1)}}

|22:30–23:30

|{{convert|23.73|mi|km|abbr=on|sortable=on}}

|{{convert|75|yd|m|abbr=on|sortable=on}}

|Shingles were removed from a mobile home, outbuildings were destroyed, and many trees were downed along an intermittent path.{{cite news|agency=National Centers for Environmental Information|title=Missouri Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=949238|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}{{cite news|agency=National Centers for Environmental Information|title=Missouri Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=949240|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|SW of Rosa to S of Susan Moore

|Blount

|AL

|{{Coord|33.9227

86.5587|name=Rosa (March 17, EF1)}}

|22:43–23:05

|{{convert|12.89|mi|km|abbr=on|sortable=on}}

|{{convert|300|yd|m|abbr=on|sortable=on}}

|An outbuilding was destroyed, a porch was blown off a mobile home, and many trees were snapped and uprooted.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=945121|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|W of Purvis

|Lamar

|MS

|{{Coord|31.1532

89.6130|name=Purvis (March 17, EF0)}}

|23:16–23:17

|{{convert|1.42|mi|km|abbr=on|sortable=on}}

|{{convert|300|yd|m|abbr=on|sortable=on}}

|A house lost most of its roof, a couple sheds were destroyed, and several trees were downed, one of which fell through a mobile home.{{cite news|agency=National Centers for Environmental Information|title=Mississippi Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=951180|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|SW of Okolona

|Chickasaw

|MS

|{{Coord|33.9519

88.8160|name=Okolona (March 17, EF0)}}

|00:25–00:26

|{{convert|0.5|mi|km|abbr=on|sortable=on}}

|{{convert|50|yd|m|abbr=on|sortable=on}}

|A barn sustained roof damage, and several trees were downed.{{cite news|agency=National Centers for Environmental Information|title=Mississippi Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=948335|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|NW of Okolona

|Chickasaw

|MS

|{{Coord|34.0296

88.8041|name=Okolona (March 17, EF0)}}

|00:31–00:34

|{{convert|1.36|mi|km|abbr=on|sortable=on}}

|{{convert|100|yd|m|abbr=on|sortable=on}}

|An outbuilding was destroyed and several trees were downed.{{cite news|agency=National Centers for Environmental Information|title=Mississippi Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=948337|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|Nettleton

|Monroe, Lee

|MS

|{{Coord|34.0783

88.6295|name=Nettleton (March 17, EF0)}}

|00:39–00:47

|{{convert|4.86|mi|km|abbr=on|sortable=on}}

|{{convert|60|yd|m|abbr=on|sortable=on}}

|A structure sustained roof damage, and several trees were downed along an intermittent path from Nettleton to northeast of town.{{cite news|agency=National Centers for Environmental Information|title=Mississippi Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=948985|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}{{cite news|agency=National Centers for Environmental Information|title=Mississippi Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=948986|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|W of Porterville

|Kemper

|MS

|{{Coord|32.689

88.5223|name=Porterville (March 17, EF0)}}

|00:56–00:57

|{{convert|0.24|mi|km|abbr=on|sortable=on}}

|{{convert|80|yd|m|abbr=on|sortable=on}}

|Trees were uprooted and tree branches were broken.{{cite news|agency=National Centers for Environmental Information|title=Mississippi Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=951181|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|WSW of Oak Grove

|Autauga

|AL

|{{Coord|32.6004

86.6099|name=Oak Grove (March 17, EF0)}}

|01:35–01:36

|{{convert|0.13|mi|km|abbr=on|sortable=on}}

|{{convert|75|yd|m|abbr=on|sortable=on}}

|A brief tornado destroyed a metal outbuilding. A carport was lofted, landing in an open field. Trees and tree branches were snapped.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=945125|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|SW of Fairview to NW of Baileyton

|Cullman

|AL

|{{Coord|34.1997

86.7521|name=Fairview (March 17, EF1)}}

|02:31–02:43

|{{convert|8.47|mi|km|abbr=on|sortable=on}}

|{{convert|150|yd|m|abbr=on|sortable=on}}

|Several sheds were either damaged or destroyed, a garage was severely damaged, several large farm sheds were demolished, and two houses sustained partial roof loss. Additionally, several chicken houses had roofing and siding removed, large outbuildings sustained roof damage, and numerous trees were downed.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=947542|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|NNW of Pine Level

|Montgomery

|AL

|{{Coord|32.1279

86.0797|name=Pine Level (March 17, EF0)}}

|03:43–03:44

|{{convert|0.3|mi|km|abbr=on|sortable=on}}

|{{convert|140|yd|m|abbr=on|sortable=on}}

|A farmhouse sustained roof damage, both from wind and from a falling tree. A playhouse and a trampoline were destroyed, a fence sustained minor damage, and several trees were snapped or uprooted.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=945132|publisher=National Centers for Environmental Information|access-date=June 21, 2021}}

=March 18 event=

class="wikitable sortable" style="width:100%;"

|+ List of confirmed tornadoes – Thursday, March 18, 2021{{efn|All dates are based on the local time zone where the tornado touched down; however, all times are in Coordinated Universal Time for consistency.|group=note|name=Date/Time}}

! scope="col" style="width:3%; text-align:center;"|EF#

! scope="col" style="width:7%; text-align:center;" class="unsortable"|Location

! scope="col" style="width:6%; text-align:center;" class="unsortable"|County / Parish

! scope="col" style="width:5%; text-align:center;"|State

! scope="col" style="width:6%; text-align:center;"|Start Coord.

! scope="col" style="width:6%; text-align:center;"|Time (UTC)

! scope="col" style="width:6%; text-align:center;"|Path length

! scope="col" style="width:6%; text-align:center;"|Max width

! scope="col" class="unsortable" style="width:48%; text-align:center;"|Summary

bgcolor="{{storm colour|cat1}}" | EF1

|NE of Brantley

|Crenshaw

|AL

|{{Coord|31.5920

86.2435|name=Brantley (March 18, EF1)}}

|09:08–09:10

|{{convert|0.52|mi|km|abbr=on|sortable=on}}

|{{convert|150|yd|m|abbr=on|sortable=on}}

|Numerous trees were downed, and the roof was removed from an outbuilding.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=947198|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|W of Dothan

|Houston

|AL

|{{Coord|31.2125

85.5527|name=Dothan (March 18, EF1)}}

|10:27–10:37

|{{convert|5.24|mi|km|abbr=on|sortable=on}}

|{{convert|150|yd|m|abbr=on|sortable=on}}

|A double-wide mobile home sustained significant roof loss, a large carport over an RV was completely destroyed, and an outbuilding lost most of its roof and had some walls partially collapsed. Several farm structures sustained mostly roof damage, two homes sustained roof damage, and one had partial roof loss on the second story. A boat and trailer were picked up and rolled/rotated 180 degrees, being left {{convert|75|–|100|yd|m}} away. Numerous trees were downed along the path, and one person was injured.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=947593|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|NW of Kinsey

|Houston, Henry

|AL

|{{Coord|31.3047

85.3825|name=Kinsey (March 18, EF0)}}

|10:49–10:52

|{{convert|2.08|mi|km|abbr=on|sortable=on}}

|{{convert|50|yd|m|abbr=on|sortable=on}}

|A carport was damaged, and small trees and limbs were snapped.{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=947598|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}{{cite news|agency=National Centers for Environmental Information|title=Alabama Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=947599|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|ENE of Ebro

|Washington

|FL

|{{Coord|30.47

85.81|name=Ebro (March 18, EF0)}}

|11:02–11:04

|{{convert|1.56|mi|km|abbr=on|sortable=on}}

|{{convert|25|yd|m|abbr=on|sortable=on}}

|A TDS appeared on radar in a forested area. Tree damage was found, but no structural damage was reported.{{cite news|agency=National Centers for Environmental Information|title=Florida Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=948526|publisher=National Centers for Environmental Information|access-date=June 16, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|Northwest Florida Beaches International Airport

|Bay

|FL

|{{Coord|30.3373

85.8082|name=Northwest Florida Beaches Int'l Airport (March 18, EF0)}}

|11:03–11:04

|{{convert|3.94|mi|km|abbr=on|sortable=on}}

|{{convert|100|yd|m|abbr=on|sortable=on}}

|Buildings sustained minor damage at the airport, and trees were downed.{{cite news|agency=National Centers for Environmental Information|title=Florida Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=948531|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|Bayou George

|Bay

|FL

|{{Coord|30.2631

85.5294|name=Bayou George (March 18, EF1)}}

|11:25–11:26

|{{convert|0.37|mi|km|abbr=on|sortable=on}}

|{{convert|50|yd|m|abbr=on|sortable=on}}

|Several homes were damaged in Bayou George, and trees were downed.{{cite news|agency=National Centers for Environmental Information|title=Florida Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=948533|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|E of Blakely

|Early

|GA

|{{Coord|31.36

84.88|name=Blakely (March 18, EF0)}}

|11:44–11:50

|{{convert|3.14|mi|km|abbr=on|sortable=on}}

|{{convert|50|yd|m|abbr=on|sortable=on}}

|A TDS appeared on radar in a forested area. Tree damage was found, but no structural damage was reported.{{cite news|agency=National Centers for Environmental Information|title=Georgia Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=947654|publisher=National Centers for Environmental Information|access-date=June 16, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|ENE of Woods

|Liberty

|FL

|{{Coord|30.36

84.9|name=Woods (March 18, EF0)}}

|12:40

|{{convert|0.01|mi|km|abbr=on|sortable=on}}

|{{convert|25|yd|m|abbr=on|sortable=on}}

|A brief TDS appeared on radar in a forested area. Tree damage was found, but no structural damage was reported.{{cite news|agency=National Centers for Environmental Information|title=Florida Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=948516|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|S of Sasser

|Terrell

|GA

|{{Coord|31.6743

84.3793|name=Sasser (March 18, EF1)}}

|12:49–12:52

|{{convert|3.99|mi|km|abbr=on|sortable=on}}

|{{convert|200|yd|m|abbr=on|sortable=on}}

|A house sustained roof damage, and numerous trees were snapped or uprooted.{{cite news|agency=National Centers for Environmental Information|title=Georgia Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=947647|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|S of Leesburg to W of Oakfield

|Lee

|GA

|{{Coord|31.6791

84.172|name=Leesburg (March 18, EF1)}}

|13:06–13:17

|{{convert|10.42|mi|km|abbr=on|sortable=on}}

|{{convert|50|yd|m|abbr=on|sortable=on}}

|Over half the roof was removed from a home and an attached carport was ripped off and thrown several feet. A shed was destroyed, the wall of a large garage was bowed outward, and a trampoline was tossed a short distance. Many trees were snapped or uprooted, including several large pines and a large oak that fell on another home.{{cite news|agency=National Centers for Environmental Information|title=Georgia Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=947644|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|N of Bristol

|Pierce

|GA

|{{Coord|31.4715

82.2066|name=Bristol (March 18, EF0)}}

|17:38–17:40

|{{convert|0.1|mi|km|abbr=on|sortable=on}}

|{{convert|5|yd|m|abbr=on|sortable=on}}

|A brief tornado spotted by emergency management downed four trees.{{cite news|agency=National Centers for Environmental Information|title=Georgia Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=942602|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|NW of Trenton to Alachua

|Gilchrist, Alachua

|FL

|{{Coord|29.7254

82.6750|name=Alachua (March 18, EF0)}}

|18:46–19:05

|{{convert|12.5|mi|km|abbr=on|sortable=on}}

|{{convert|100|yd|m|abbr=on|sortable=on}}

|A barn collapsed onto a tractor near the beginning of the path. A carport sustained roof damage in Alachua and multiple trees were downed, including one that fell on a car.{{cite news|agency=National Centers for Environmental Information|title=Florida Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=942598|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|NNW of Archdale

|Guilford

|NC

|{{Coord|35.93

79.99|name=Archdale (March 18, EF1)}}

|21:01–21:10

|{{convert|2.63|mi|km|abbr=on|sortable=on}}

|{{convert|500|yd|m|abbr=on|sortable=on}}

|Numerous homes and businesses sustained minor to moderate damage, and trees were downed.{{cite news|agency=National Centers for Environmental Information|title=North Carolina Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=951720|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|Whitsett to S of Elon

|Guilford, Alamance

|NC

|{{Coord|36.0629

79.5485|name=Whitsett (March 18, EF1)}}

|21:38–21:44

|{{convert|2.52|mi|km|abbr=on|sortable=on}}

|{{convert|200|yd|m|abbr=on|sortable=on}}

|The roofs were blown off multiple houses. Numerous trees and power lines were downed.{{cite news|agency=National Centers for Environmental Information|title=North Carolina Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=951724|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}{{cite news|agency=National Centers for Environmental Information|title=North Carolina Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=951725|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}

bgcolor="{{storm colour|cat1}}" | EF1

|SW of Carr to NW of McDade

|Orange

|NC

|{{Coord|36.17

79.249|name=Carr (March 18, EF1)}}

|22:04–22:10

|{{convert|4.25|mi|km|abbr=on|sortable=on}}

|{{convert|200|yd|m|abbr=on|sortable=on}}

|Numerous trees and power lines were downed. The roof was blown off a house.{{cite news|agency=National Centers for Environmental Information|title=North Carolina Event Report: EF1 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=951717|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}

bgcolor="{{storm colour|storm}}" | EF0

|Walters

|Isle of Wight

|VA

|{{Coord|36.7597

76.8566|name=Walters (March 18, EF0)}}

|01:27–01:31

|{{convert|4.18|mi|km|abbr=on|sortable=on}}

|{{convert|150|yd|m|abbr=on|sortable=on}}

|A pole barn was knocked down, a garage was destroyed, a house sustained roof damage, and a church lost most of its roof. Trees and tree limbs were downed along the path.{{cite news|agency=National Centers for Environmental Information|title=Virginia Event Report: EF0 Tornado|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=948939|publisher=National Centers for Environmental Information|access-date=June 22, 2021}}

Impact

=Southeastern United States=

More than 40,000 homes and businesses were without electricity across Louisiana, Alabama and Mississippi. Two people were injured when a home was destroyed in Clarke County, Alabama. Four other homes were also destroyed, and some chicken farms. A car crash in Mississippi along U.S. Highway 61 resulted in a non-tornadic fatality.

In Mississippi's largest city of Jackson, ABC station WAPT was knocked off the air due to a 2-hour power outage caused by lightning, that caused alarm systems to go off in the studio.{{Cite news|url=https://www.wapt.com/article/lightning-strikes-take-16-wapt-off-the-air/35856942|title=Lightning strikes take 16 WAPT off the air|work=WAPT|date=March 17, 2021|access-date=March 18, 2021|language=en-US}}

=Southern Plains=

In parts of the Southern Plains, the large extratropical cyclone associated with the tornado outbreak also resulted in a severe blizzard early on March 17. Blizzard Warnings were issued across most of the Texas and Oklahoma panhandles, including the Amarillo area, late on March 16.{{cite tweet |author=National Weather Service |author-link=National Weather Service |user=NWS |number=1371990609699823618 |date=March 17, 2021 |title=Blizzard Warnings (red) in effect on Wednesday for portions of Texas, Oklahoma, Kansas and Colorado. https://t.co/VyWINDBEpn for more. https://t.co/tsJgmGPC8u |language=en |access-date=December 29, 2022 |archive-url=https://web.archive.org/web/20221221174817/https://twitter.com/nws/status/1371990609699823618 |archive-date=December 21, 2022 |url-status=live}}{{Cite web|url=https://kfor.com/news/local/blizzard-warning-winter-weather-advisory-issued-for-oklahoma-panhandle/|title=Blizzard warning, winter weather advisory issued for parts of Oklahoma|date=March 17, 2021}}{{Cite web|url=https://www.newschannel10.com/2021/03/16/first-alert-near-blizzard-conditions-expected/|title=FIRST ALERT: Blizzard conditions coming to an end|date=March 17, 2021 }} Zero visibility was reported in much of the area under a Blizzard Warning.{{cite tweet |author=NWS Amarillo |user=NWSAmarillo |number=1372210823725207558 |date=March 17, 2021 |title=Heavy band of snow over Amarillo right now and heading for Panhandle and Pampa soon. Zero visibility with this band. Stay off the roads. #phwx #txwx #okwx |language=en |access-date=December 29, 2022 |archive-url=https://web.archive.org/web/20210317153905/https://twitter.com/NWSAmarillo/status/1372210823725207558 |archive-date=March 17, 2021 |url-status=live}} Extremely heavy snowfall rates and wind gusts of over {{convert|60|mph|kph|abbr=on}} resulted in long-duration blizzard conditions as well. Numerous crashes occurred on major roadways, and several highways, including I-40 and US-287 had to be closed.{{cite tweet |author=NWS Amarillo |user=NWSAmarillo |number=1372231125771386881 |date=March 17, 2021 |title=Getting reports from the public: Hwy 70 going to Pampa from I-40 at a stand still with semi trucks jack-knifed. #phwx #txwx |language=en |access-date=December 29, 2022 |archive-url=https://web.archive.org/web/20210317170550/https://twitter.com/NWSAmarillo/status/1372231125771386881 |archive-date=March 17, 2021 |url-status=live}} Amarillo, Texas saw almost {{convert|6|in|cm}} of snow, and nearby areas saw even more. The blizzard was also followed by a flash freeze overnight on March 17, resulting in a freeze-up of snow-covered roadways and more crashes overnight.{{cite tweet |author=NWS Amarillo |user=NWSAmarillo |number=1372329399245275137 |date=March 17, 2021 |title=3/17: We will see overnight temps drop into the 20s for most areas. Any areas that still have snow on the ground will see re-freeze, creating slick spots overnight and in the morning. #phwx https://t.co/KNRrvYrNzj |language=en |access-date=December 29, 2022 |archive-url=https://web.archive.org/web/20210417200033/https://twitter.com/NWSAmarillo/status/1372329399245275137 |archive-date=April 17, 2021 |url-status=live}}