Hurricane Carla tornado outbreak

{{Infobox storm

| name = Hurricane Carla tornado outbreak

| image = Hurricane carla radar.jpg

| alt =

| caption = Radar image showing Hurricane Carla approaching landfall in Port O'Connor, Texas as seen from WSR-57 in Galveston, Texas.

| type = Tornado outbreak

| active = September 10–13, 1961

| lowest pressure =

| lowest temperature =

| tornadoes = 21

| fujitascale = F4

| tornado duration = 3 days, 2 hours, 10 minutes

| highest winds =

| hail =

| gusts =

| maximum snow =

| power outages =

| casualties = 14 fatalities, 337 injuries

| damages = ≥$3.461 million{{cite web |title=Tornado Summaries |url=https://www.ncdc.noaa.gov/stormevents/listevents.jsp?eventType=%28C%29+Tornado&beginDate_mm=09&beginDate_dd=10&beginDate_yyyy=1961&endDate_mm=09&endDate_dd=13&endDate_yyyy=1961&hailfilter=0.00&tornfilter=0&windfilter=000&sort=DT&submitbutton=Search&statefips=-999%2CALL |website=National Weather Service |publisher=National Centers for Environmental Information |access-date=14 August 2020}}

| affected = Southern United States, Midwest

| current advisories =

| enhanced = no

| notes =

| partof = the tornado outbreaks of 1961

}}

Hurricane Carla triggered a destructive and deadly outbreak of 21 tornadoes in Alabama, Louisiana, Texas, Arkansas, and Michigan that occurred from September 10–13, 1961. A total of 11 tornadoes touched down in Louisiana, and eight more in Texas. The strongest tornado of the outbreak was a {{convert|1|mi|km}} long, {{convert|100|yd|m}} wide F4 tornado that moved across Galveston Island in the early morning hours of Tuesday, September 12, 1961, killing eight people. This was the first of only two known violent tornadoes ever spawned by a hurricane with the other one happening during Hurricane Hilda in 1964. By the time it was over, the outbreak had killed 14 people, injured 337 others, and caused over $3.461 million in damage.

Meteorological synopsis

File:Carla 1961 track.png, according to the Saffir–Simpson scale.]]

As Hurricane Carla moved northwestward over the Gulf of Mexico on September 10, its outer rainbands began to spread over the Gulf Coast. Favorable shear profiles led to scattered tornadoes touching down across the region, including an F3 tornado that caused numerous casualties in Kaplan, Louisiana. More tornadoes touched down the next day as the system made landfall in Port O'Connor, Texas at peak intensity with {{convert|145|mph|km/h}} winds and a pressure of {{convert|931|mbar|inHg|abbr=on}}. September 12 was the worst day of the outbreak with six significant (F2+) tornadoes touching down, including a violent F4 tornado in Galveston, Texas and an intense F3 tornado in Jonesboro, Louisiana, causing widespread destruction and 250 casualties. By September 13, a weaker Tropical Storm Carla was accelerating northward into Canada. Some scattered tornado activity occurred on this day before the outbreak came to an end.{{cite report|url=http://www1.ncdc.noaa.gov/pub/orders/IPS-52F4B7BD-1C8E-49D5-8E58-2306A1702BBA.pdf|title=Storm Data and Unusual Weather Phenomena: December 1961|author=Luther Hodges|work=United States Department of Commerce|page=120|publisher=National Climatic Data Center; National Oceanic and Atmospheric Administration|location=Asheville, North Carolina|access-date=14 August 2020|archive-url=https://web.archive.org/web/20140201052024/http://www1.ncdc.noaa.gov/pub/orders/IPS-52F4B7BD-1C8E-49D5-8E58-2306A1702BBA.pdf|archive-date=February 1, 2014}}{{Cite web|url=https://texasarchive.org/2009_00883|title=Hurricane Carla Aftermath, no. 1|website=Texas Archive of the Moving Image|access-date=14 August 2020}}

Confirmed tornadoes

=September 10 event=

class="wikitable sortable" style="width:100%;" \|+ Confirmed tornadoes – Sunday, September 10, 1961{{refn\|group=nb\|name=Date/Time\|All dates are based on the local time zone where the tornado touched down; however, all times are in Coordinated Universal Time and dates are split at midnight CST/CDT for consistency.}}{{refn\|group=nb\|name=Width\|Prior to 1994, only the average widths of tornado paths were officially listed.{{cite journal \|last1=Brooks \|first1=Harold E. \|author-link1=Harold E. Brooks \|title=On the Relationship of Tornado Path Length and Width to Intensity \|journal=Weather and Forecasting \|date=April 2004 \|volume=19 \|issue=2 \|page=310 \|doi=10.1175/1520-0434(2004)019<0310:OTROTP>2.0.CO;2 \|publisher=American Meteorological Society \|location=Boston\|bibcode=2004WtFor..19..310B \|doi-access=free }}}}
scope="col" style="width:3%; text-align:center;"\|F# ! 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 {{abbr\|coord.\|Coordinates}} ! 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;"\|{{abbr\|Max.\|Maximum}} width ! scope="col" class="unsortable" style="width:48%; text-align:center;"\|Summary
bgcolor=#{{storm colour\|cat1}} \| F1 \|Alabama Port \|Mobile \|AL \|{{Coord\|35.15
89.92\|name=Alabama Port (September 10, F1)}} \|20:55–? \|{{convert\|0.5\|mi\|km\|sortable=on}} \|{{convert\|10\|yd\|m\|sortable=on}} \|A waterspout moved northwestward over Mobile Bay before moving ashore, damaging two homes and a store. Losses totaled $2,500.{{cite report \|title=Alabama Event Report: F1 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=9975801 \|website=National Weather Service \|publisher=National Centers for Environmental Information \|access-date=15 August 2020}}
bgcolor=#{{storm colour\|cat3}} \| F3 \|Kaplan to Cossinade \|Vermilion \|LA \|{{Coord\|30.00
92.30\|name=Kaplan (September 10, F3)}} \|22:50–? \|{{convert\|5.7\|mi\|km\|sortable=on}} \|{{convert\|283\|yd\|m\|sortable=on}} \|1 death – This intense tornado touched down just outside of Kaplan and caused heavy damage as it moved over 21 blocks of the town. A total of 21 homes were destroyed while 55 others were damaged. It moved almost due north after that, passing near the town of Cossinade before dissipating. In all, 73 homes were destroyed or extensively damaged, while 175 others received minimal damage. A total of 55 people were injured and damage was estimated at $2.5 million.{{cite report \|title=Louisiana Event Report: F3 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032701 \|website=National Weather Service \|publisher=National Centers for Environmental Information \|access-date=16 August 2020}}{{cite book \|last1=Grazulis \|first1=Thomas P. \|author-link1=Thomas P. Grazulis \|title=Significant Tornadoes 1680–1991: A Chronology and Analysis of Events \|date=July 1993 \|publisher=The Tornado Project of Environmental Films \|location=St. Johnsbury, Vermont \|isbn=1-879362-03-1 \|page=1038 }}
bgcolor=#{{storm colour\|cat1}} \| F1 \|NE of Intracoastal City \|Vermilion \|LA \|{{Coord\|29.8
92.1\|name=Intracoastal City (September 10, F1)}} \|00:09–? \|{{convert\|2\|mi\|km\|sortable=on}} \|{{convert\|100\|yd\|m\|sortable=on}} \|Tornado moved through sparsely populated areas, causing $25,000.{{cite web \|title=Storm Data Publication {{!}} IPS {{!}} National Climatic Data Center (NCDC) \|url=https://www.ncdc.noaa.gov/IPS/sd/sd.html \|website=www.ncdc.noaa.gov \|access-date=16 August 2020}}{{cite report \|title=Louisiana Event Report: F1 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032702 \|website=National Weather Service \|publisher=National Centers for Environmental Information \|access-date=16 August 2020}}
bgcolor=#{{storm colour\|cat1}} \| F1 \|S of Gueydan \|Vermilion \|LA \|{{Coord\|29.70
91.20\|name=Gueydan (September 10, F1)}} \|00:12–? \|{{convert\|1\|mi\|km\|sortable=on}} \|{{convert\|100\|yd\|m\|sortable=on}} \|Tornado moved through sparsely populated areas, causing $25,000 in damage.{{cite report \|title=Louisiana Event Report: F1 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032703 \|website=National Weather Service \|publisher=National Centers for Environmental Information \|access-date=16 August 2020}}
bgcolor=#{{storm colour\|cat2}} \| F2 \|Downtown Morgan City \|St. Mary \|LA \|{{Coord\|29.70
91.20\|name=Downtown Morgan City (September 10, F2)}} \|04:20–? \|{{convert\|1\|mi\|km\|sortable=on}} \|{{convert\|100\|yd\|m\|sortable=on}} \|Approximately 55 homes were unroofed or otherwise damaged. Losses totaled $25,000 and 16 people were injured.{{cite report \|title=Louisiana Event Report: F2 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032705 \|website=National Weather Service \|publisher=National Centers for Environmental Information \|access-date=16 August 2020}}
bgcolor=#{{storm colour\|cat1}} \| F1 \|N of Patterson \|St. Mary \|LA \|{{Coord\|29.7
91.3\|name=Patterson (September 10, F1)}} \|04:20–? \|{{convert\|0.3\|mi\|km\|sortable=on}} \|{{convert\|100\|yd\|m\|sortable=on}} \|Damage was estimated at $2,500.{{cite report \|title=Louisiana Event Report: F1 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032704 \|website=National Weather Service \|publisher=National Centers for Environmental Information \|access-date=16 August 2020}}

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

|+ Confirmed tornadoes – Sunday, September 10, 1961{{refn|group=nb|name=Date/Time|All dates are based on the local time zone where the tornado touched down; however, all times are in Coordinated Universal Time and dates are split at midnight CST/CDT for consistency.}}{{refn|group=nb|name=Width|Prior to 1994, only the average widths of tornado paths were officially listed.{{cite journal |last1=Brooks |first1=Harold E. |author-link1=Harold E. Brooks |title=On the Relationship of Tornado Path Length and Width to Intensity |journal=Weather and Forecasting |date=April 2004 |volume=19 |issue=2 |page=310 |doi=10.1175/1520-0434(2004)019<0310:OTROTP>2.0.CO;2 |publisher=American Meteorological Society |location=Boston|bibcode=2004WtFor..19..310B |doi-access=free }}}}

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

! 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
{{abbr|coord.|Coordinates}}

! 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;"|{{abbr|Max.|Maximum}} width

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

bgcolor=#{{storm colour|cat1}} | F1

|Alabama Port

|Mobile

|AL

|{{Coord|35.15

89.92|name=Alabama Port (September 10, F1)}}

|20:55–?

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

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

|A waterspout moved northwestward over Mobile Bay before moving ashore, damaging two homes and a store. Losses totaled $2,500.{{cite report |title=Alabama Event Report: F1 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=9975801 |website=National Weather Service |publisher=National Centers for Environmental Information |access-date=15 August 2020}}

bgcolor=#{{storm colour|cat3}} | F3

|Kaplan to Cossinade

|Vermilion

|LA

|{{Coord|30.00

92.30|name=Kaplan (September 10, F3)}}

|22:50–?

|{{convert|5.7|mi|km|sortable=on}}

|{{convert|283|yd|m|sortable=on}}

|1 death – This intense tornado touched down just outside of Kaplan and caused heavy damage as it moved over 21 blocks of the town. A total of 21 homes were destroyed while 55 others were damaged. It moved almost due north after that, passing near the town of Cossinade before dissipating. In all, 73 homes were destroyed or extensively damaged, while 175 others received minimal damage. A total of 55 people were injured and damage was estimated at $2.5 million.{{cite report |title=Louisiana Event Report: F3 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032701 |website=National Weather Service |publisher=National Centers for Environmental Information |access-date=16 August 2020}}{{cite book |last1=Grazulis |first1=Thomas P. |author-link1=Thomas P. Grazulis |title=Significant Tornadoes 1680–1991: A Chronology and Analysis of Events |date=July 1993 |publisher=The Tornado Project of Environmental Films |location=St. Johnsbury, Vermont |isbn=1-879362-03-1 |page=1038 }}

bgcolor=#{{storm colour|cat1}} | F1

|NE of Intracoastal City

|Vermilion

|LA

|{{Coord|29.8

92.1|name=Intracoastal City (September 10, F1)}}

|00:09–?

|{{convert|2|mi|km|sortable=on}}

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

|Tornado moved through sparsely populated areas, causing $25,000.{{cite web |title=Storm Data Publication {{!}} IPS {{!}} National Climatic Data Center (NCDC) |url=https://www.ncdc.noaa.gov/IPS/sd/sd.html |website=www.ncdc.noaa.gov |access-date=16 August 2020}}{{cite report |title=Louisiana Event Report: F1 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032702 |website=National Weather Service |publisher=National Centers for Environmental Information |access-date=16 August 2020}}

bgcolor=#{{storm colour|cat1}} | F1

|S of Gueydan

|Vermilion

|LA

|{{Coord|29.70

91.20|name=Gueydan (September 10, F1)}}

|00:12–?

|{{convert|1|mi|km|sortable=on}}

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

|Tornado moved through sparsely populated areas, causing $25,000 in damage.{{cite report |title=Louisiana Event Report: F1 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032703 |website=National Weather Service |publisher=National Centers for Environmental Information |access-date=16 August 2020}}

bgcolor=#{{storm colour|cat2}} | F2

|Downtown Morgan City

|St. Mary

|LA

|{{Coord|29.70

91.20|name=Downtown Morgan City (September 10, F2)}}

|04:20–?

|{{convert|1|mi|km|sortable=on}}

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

|Approximately 55 homes were unroofed or otherwise damaged. Losses totaled $25,000 and 16 people were injured.{{cite report |title=Louisiana Event Report: F2 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032705 |website=National Weather Service |publisher=National Centers for Environmental Information |access-date=16 August 2020}}

bgcolor=#{{storm colour|cat1}} | F1

|N of Patterson

|St. Mary

|LA

|{{Coord|29.7

91.3|name=Patterson (September 10, F1)}}

|04:20–?

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

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

|Damage was estimated at $2,500.{{cite report |title=Louisiana Event Report: F1 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032704 |website=National Weather Service |publisher=National Centers for Environmental Information |access-date=16 August 2020}}

=September 11 event=

class="wikitable sortable" style="width:100%;" \|+ Confirmed tornadoes – Monday, September 11, 1961{{refn\|group=nb\|name=Date/Time}}{{refn\|group=nb\|name=Width}}
scope="col" style="width:3%; text-align:center;"\|F# ! 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 {{abbr\|coord.\|Coordinates}} ! 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;"\|{{abbr\|Max.\|Maximum}} width ! scope="col" class="unsortable" style="width:48%; text-align:center;"\|Summary
bgcolor=#{{storm colour\|cat1}} \| F1 \|SE of Oldfield \|Livingston \|LA \|{{Coord\|30.6
90.78\|name=Oldfield (September 11, F1}} \|17:10–? \|{{convert\|3.6\|mi\|km\|sortable=on}} \|{{convert\|100\|yd\|m\|sortable=on}} \|Tornado caused heavy tree damage with losses totaling $250,000.{{cite report \|title=Louisiana Event Report: F1 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032706 \|website=National Weather Service \|publisher=National Centers for Environmental Information \|access-date=16 August 2020}}
bgcolor=#{{storm colour\|cat2}} \| F2 \|Alton to N of Colt \|St. Tammany \|LA \|{{Coord\|30.33
89.77\|name=Alton (September 11, F2)}} \|17:30–? \|{{convert\|4.3\|mi\|km\|sortable=on}} \|{{convert\|100\|yd\|m\|sortable=on}} \|Strong tornado destroyed small homes as it moved west along the north side of Slidell. Two people were injured and damage was estimated at $25,000.{{cite report \|title=Louisiana Event Report: F2 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032707 \|website=National Weather Service \|publisher=National Centers for Environmental Information \|access-date=16 August 2020}}
bgcolor=#{{storm colour\|cat2}} \| F2 \|Van Vleck \|Matagorda \|TX \|{{Coord\|29
95.9\|name=Van Vleck (September 11, F2)}} \|17:47–? \|{{convert\|0.4\|mi\|km\|sortable=on}} \|{{convert\|50\|yd\|m\|sortable=on}} \|Several buildings were damaged and two radio towers were destroyed northeast of Bay City. No damage estimate was given.{{cite report \|title=Texas Event Report: F2 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120337 \|website=National Weather Service \|publisher=National Centers for Environmental Information \|access-date=17 August 2020}}
bgcolor=#{{storm colour\|storm}} \| F0 \|Springfield \|Tangipahoa, Livingston \|LA \|{{Coord\|30.43
90.5\|name=Springfield (September 11, F0)}} \|19:00–? \|{{convert\|5.6\|mi\|km\|sortable=on}} \|{{convert\|100\|yd\|m\|sortable=on}} \|Tornado moved west, passing south of Rosaryville and Pumpkin Center before crossing the Natalbany River and moving through Springfield. There was $25,000 in damage.{{cite report \|title=Louisiana Event Report: F0 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032708 \|website=National Weather Service \|publisher=National Centers for Environmental Information \|access-date=17 August 2020}}
bgcolor=#{{storm colour\|cat3}} \| F3 \|Southern Jacksonville \|Cherokee \|TX \|{{Coord\|31.92
95.28\|name=Southern Jacksonville (September 11, F3)}} \|19:20–? \|{{convert\|0.1\|mi\|km\|sortable=on}} \|{{convert\|10\|yd\|m\|sortable=on}} \|Four homes were damaged, including one that was destroyed. Three people were injured and losses totaled $25,000. Grazulis classified the tornado as an F2.{{cite report \|title=Texas Event Report: F3 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120338 \|website=National Weather Service \|publisher=National Center for Environmental Information \|access-date=17 August 2020}}
bgcolor=#{{storm colour\|cat3}} \| F3 \|Channelview \|Harris \|TX \|{{Coord\|29.77
95.13\|name=Channelview (September 11, F3)}} \|23:50–? \|{{convert\|1\|mi\|km\|sortable=on}} \|{{convert\|83\|yd\|m\|sortable=on}} \|Six commercial buildings and approximately 18 homes were destroyed by this intense tornado. At least 40 additional homes were damaged as well. Cars were tossed up to {{convert\|100\|yd\|m\|abbr=on}}. A total of 22 people were injured and losses totaled $200,000.{{cite report\|title=Texas Event Report: F3 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120339 \|website=National Weather Service \|publisher=National Center of Environmental Information \|access-date=17 August 2020}}

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

|+ Confirmed tornadoes – Monday, September 11, 1961{{refn|group=nb|name=Date/Time}}{{refn|group=nb|name=Width}}

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

! 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
{{abbr|coord.|Coordinates}}

! 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;"|{{abbr|Max.|Maximum}} width

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

bgcolor=#{{storm colour|cat1}} | F1

|SE of Oldfield

|Livingston

|LA

|{{Coord|30.6

90.78|name=Oldfield (September 11, F1}}

|17:10–?

|{{convert|3.6|mi|km|sortable=on}}

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

|Tornado caused heavy tree damage with losses totaling $250,000.{{cite report |title=Louisiana Event Report: F1 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032706 |website=National Weather Service |publisher=National Centers for Environmental Information |access-date=16 August 2020}}

bgcolor=#{{storm colour|cat2}} | F2

|Alton to N of Colt

|St. Tammany

|LA

|{{Coord|30.33

89.77|name=Alton (September 11, F2)}}

|17:30–?

|{{convert|4.3|mi|km|sortable=on}}

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

|Strong tornado destroyed small homes as it moved west along the north side of Slidell. Two people were injured and damage was estimated at $25,000.{{cite report |title=Louisiana Event Report: F2 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032707 |website=National Weather Service |publisher=National Centers for Environmental Information |access-date=16 August 2020}}

bgcolor=#{{storm colour|cat2}} | F2

|Van Vleck

|Matagorda

|TX

|{{Coord|29

95.9|name=Van Vleck (September 11, F2)}}

|17:47–?

|{{convert|0.4|mi|km|sortable=on}}

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

|Several buildings were damaged and two radio towers were destroyed northeast of Bay City. No damage estimate was given.{{cite report |title=Texas Event Report: F2 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120337 |website=National Weather Service |publisher=National Centers for Environmental Information |access-date=17 August 2020}}

bgcolor=#{{storm colour|storm}} | F0

|Springfield

|Tangipahoa, Livingston

|LA

|{{Coord|30.43

90.5|name=Springfield (September 11, F0)}}

|19:00–?

|{{convert|5.6|mi|km|sortable=on}}

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

|Tornado moved west, passing south of Rosaryville and Pumpkin Center before crossing the Natalbany River and moving through Springfield. There was $25,000 in damage.{{cite report |title=Louisiana Event Report: F0 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032708 |website=National Weather Service |publisher=National Centers for Environmental Information |access-date=17 August 2020}}

bgcolor=#{{storm colour|cat3}} | F3

|Southern Jacksonville

|Cherokee

|TX

|{{Coord|31.92

95.28|name=Southern Jacksonville (September 11, F3)}}

|19:20–?

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

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

|Four homes were damaged, including one that was destroyed. Three people were injured and losses totaled $25,000. Grazulis classified the tornado as an F2.{{cite report |title=Texas Event Report: F3 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120338 |website=National Weather Service |publisher=National Center for Environmental Information |access-date=17 August 2020}}

bgcolor=#{{storm colour|cat3}} | F3

|Channelview

|Harris

|TX

|{{Coord|29.77

95.13|name=Channelview (September 11, F3)}}

|23:50–?

|{{convert|1|mi|km|sortable=on}}

|{{convert|83|yd|m|sortable=on}}

|Six commercial buildings and approximately 18 homes were destroyed by this intense tornado. At least 40 additional homes were damaged as well. Cars were tossed up to {{convert|100|yd|m|abbr=on}}. A total of 22 people were injured and losses totaled $200,000.{{cite report|title=Texas Event Report: F3 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120339 |website=National Weather Service |publisher=National Center of Environmental Information |access-date=17 August 2020}}

=September 12 event=

class="wikitable sortable" style="width:100%;" \|+ Confirmed tornadoes – Tuesday, September 12, 1961{{refn\|group=nb\|name=Date/Time}}{{refn\|group=nb\|name=Width}}
scope="col" style="width:3%; text-align:center;"\|F# ! 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 {{abbr\|coord.\|Coordinates}} ! 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;"\|{{abbr\|Max.\|Maximum}} width ! scope="col" class="unsortable" style="width:48%; text-align:center;"\|Summary
bgcolor=#{{storm colour\|cat4}} \| F4 \|Galveston (1st tornado) \|Galveston \|TX \|{{Coord\|29.32
94.78\|name=Galveston (September 12, F4)}} \|09:15–? \|{{convert\|1\|mi\|km\|sortable=on}} \|{{convert\|100\|yd\|m\|sortable=on}} \|8 deaths – This rare, violent tornado caused widespread destruction between 19th and 25th Street. 200 buildings suffered severe damage, including 60-75 that were destroyed, although no damage estimate was given. Several homes in the path of the tornado in Galveston were leveled to the ground, but hurricane-force winds may have weakened the structures beforehand. 200 people were injured. This tornado was the first of only two violent F4 tornadoes ever spawned by a tropical cyclone with the other coming from Hurricane Hilda in 1964.{{Cite report\|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120340\|title=Texas Event Report: F4 Tornado\|website=www.ncdc.noaa.gov\|access-date=August 2, 2020}}
bgcolor=#{{storm colour\|cat3}} \| F3 \|Galveston (2nd tornado) \|Galveston \|TX \|{{Coord\|29.27
94.87\|name=Galveston (September 12, F3)}} \|12:00–? \|{{convert\|2\|mi\|km\|sortable=on}} \|{{convert\|10\|yd\|m\|sortable=on}} \|Strong tornado caused extensive damage to several commercial buildings and other structures and destroyed six homes, although no monetary damage value was given. Grazulis classified the tornado as an F2.{{cite report \|title=Texas Event Report: F3 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120341 \|website=National Weather Service \|publisher=National Center for Environmental Information \|access-date=17 August 2020}}
bgcolor=#{{storm colour\|cat3}} \| F3 \|Hardin \|Liberty \|TX \|{{Coord\|30.15
94.73\|name=Hardin (September 12, F3)}} \|16:30–? \|{{convert\|0.5\|mi\|km\|sortable=on}} \|{{convert\|17\|yd\|m\|sortable=on}} \|Six homes were damaged, although no damage value was given.{{cite report \|title=Texas Event Report: F3 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120342 \|website=National Weather Service \|publisher=National Center for Environmental Information \|access-date=17 August 2020}}
bgcolor=#{{storm colour\|cat3}} \| F3 \|Jonesboro to Hodge \|Jackson \|LA \|{{Coord\|32.23
92.70\|name=Jonesboro (September 12, F3)}} \|19:00–? \|{{convert\|2\|mi\|km\|sortable=on}} \|{{convert\|400\|yd\|m\|sortable=on}} \|5 deaths – This devastating tornado, which was the largest of the outbreak, impacted Jonesboro before reaching its peak intensity when it moved through Hodge. Approximately 75 homes were severely damaged with 20 of them being destroyed, while 115 others received minimal damage before the tornado quickly dissipated. A total of 37 people were injured and damage was estimated at $250,000.{{harvnb\|Grazulis\|1993\|pp=1038–9}}{{cite report \|title=Louisiana Event Report: F3 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032709 \|website=National Weather Service \|publisher=National Center for Environmental Information \|access-date=17 August 2020}}
bgcolor=#{{storm colour\|cat2}} \| F2 \|S of Taylortown, LA to Blanchard Springs, AR \|Union (LA), Union (AR) \|LA, AR \|{{Coord\|32.97
92.6\|name=Taylortown (September 12, F2)}} \|21:00–? \|{{convert\|7.1\|mi\|km\|sortable=on}} \|{{convert\|100\|yd\|m\|sortable=on}} \|Tornado caused some damage in Rum Center, Louisiana before moving into Arkansas east of Junction City, Louisiana and Junction City, Arkansas, where several homes, barns, and other structures were destroyed or otherwise damaged. Losses were estimated at $50,000.{{harvnb\|Grazulis\|1993\|p=1039}}{{cite report \|title=Louisiana Event Report: F2 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032710 \|website=National Weather Service \|publisher=National Center for Environmental Information \|access-date=17 August 2020}}{{cite report \|title=Arkansas Event Report: F2 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=9982506 \|website=National Weather Service \|publisher=National Center for Environmental Information \|access-date=17 August 2020}}
bgcolor=#{{storm colour\|cat3}} \| F3 \|NW of Fulbright \|Red River \|TX \|{{Coord\|33.57
95.27\|name=Fulbright (September 12, F3)}} \|21:45–? \|{{convert\|0.5\|mi\|km\|sortable=on}} \|{{convert\|300\|yd\|m\|sortable=on}} \|Several structures were impacted by this intense tornado, although no damage estimate was given. The tornado destroyed five homes. Grazulis classified the tornado as an F2.{{cite report \|title=Texas Event Report: F3 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120344 \|website=National Weather Service \|publisher=National Center for Environmental Information \|access-date=17 August 2020}}

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

|+ Confirmed tornadoes – Tuesday, September 12, 1961{{refn|group=nb|name=Date/Time}}{{refn|group=nb|name=Width}}

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

! 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
{{abbr|coord.|Coordinates}}

! 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;"|{{abbr|Max.|Maximum}} width

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

bgcolor=#{{storm colour|cat4}} | F4

|Galveston (1st tornado)

|Galveston

|TX

|{{Coord|29.32

94.78|name=Galveston (September 12, F4)}}

|09:15–?

|{{convert|1|mi|km|sortable=on}}

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

|8 deaths – This rare, violent tornado caused widespread destruction between 19th and 25th Street. 200 buildings suffered severe damage, including 60-75 that were destroyed, although no damage estimate was given. Several homes in the path of the tornado in Galveston were leveled to the ground, but hurricane-force winds may have weakened the structures beforehand. 200 people were injured. This tornado was the first of only two violent F4 tornadoes ever spawned by a tropical cyclone with the other coming from Hurricane Hilda in 1964.{{Cite report|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120340|title=Texas Event Report: F4 Tornado|website=www.ncdc.noaa.gov|access-date=August 2, 2020}}

bgcolor=#{{storm colour|cat3}} | F3

|Galveston (2nd tornado)

|Galveston

|TX

|{{Coord|29.27

94.87|name=Galveston (September 12, F3)}}

|12:00–?

|{{convert|2|mi|km|sortable=on}}

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

|Strong tornado caused extensive damage to several commercial buildings and other structures and destroyed six homes, although no monetary damage value was given. Grazulis classified the tornado as an F2.{{cite report |title=Texas Event Report: F3 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120341 |website=National Weather Service |publisher=National Center for Environmental Information |access-date=17 August 2020}}

bgcolor=#{{storm colour|cat3}} | F3

|Hardin

|Liberty

|TX

|{{Coord|30.15

94.73|name=Hardin (September 12, F3)}}

|16:30–?

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

|{{convert|17|yd|m|sortable=on}}

|Six homes were damaged, although no damage value was given.{{cite report |title=Texas Event Report: F3 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120342 |website=National Weather Service |publisher=National Center for Environmental Information |access-date=17 August 2020}}

bgcolor=#{{storm colour|cat3}} | F3

|Jonesboro to Hodge

|Jackson

|LA

|{{Coord|32.23

92.70|name=Jonesboro (September 12, F3)}}

|19:00–?

|{{convert|2|mi|km|sortable=on}}

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

|5 deaths – This devastating tornado, which was the largest of the outbreak, impacted Jonesboro before reaching its peak intensity when it moved through Hodge. Approximately 75 homes were severely damaged with 20 of them being destroyed, while 115 others received minimal damage before the tornado quickly dissipated. A total of 37 people were injured and damage was estimated at $250,000.{{harvnb|Grazulis|1993|pp=1038–9}}{{cite report |title=Louisiana Event Report: F3 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032709 |website=National Weather Service |publisher=National Center for Environmental Information |access-date=17 August 2020}}

bgcolor=#{{storm colour|cat2}} | F2

|S of Taylortown, LA to Blanchard Springs, AR

|Union (LA), Union (AR)

|LA, AR

|{{Coord|32.97

92.6|name=Taylortown (September 12, F2)}}

|21:00–?

|{{convert|7.1|mi|km|sortable=on}}

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

|Tornado caused some damage in Rum Center, Louisiana before moving into Arkansas east of Junction City, Louisiana and Junction City, Arkansas, where several homes, barns, and other structures were destroyed or otherwise damaged. Losses were estimated at $50,000.{{harvnb|Grazulis|1993|p=1039}}{{cite report |title=Louisiana Event Report: F2 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032710 |website=National Weather Service |publisher=National Center for Environmental Information |access-date=17 August 2020}}{{cite report |title=Arkansas Event Report: F2 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=9982506 |website=National Weather Service |publisher=National Center for Environmental Information |access-date=17 August 2020}}

bgcolor=#{{storm colour|cat3}} | F3

|NW of Fulbright

|Red River

|TX

|{{Coord|33.57

95.27|name=Fulbright (September 12, F3)}}

|21:45–?

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

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

|Several structures were impacted by this intense tornado, although no damage estimate was given. The tornado destroyed five homes. Grazulis classified the tornado as an F2.{{cite report |title=Texas Event Report: F3 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120344 |website=National Weather Service |publisher=National Center for Environmental Information |access-date=17 August 2020}}

=September 13 event=

class="wikitable sortable" style="width:100%;" \|+ Confirmed tornadoes – Wednesday, September 13, 1961{{refn\|group=nb\|name=Date/Time}}{{refn\|group=nb\|name=Width}}
scope="col" style="width:3%; text-align:center;"\|F# ! 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 {{abbr\|coord.\|Coordinates}} ! 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;"\|{{abbr\|Max.\|Maximum}} width ! scope="col" class="unsortable" style="width:48%; text-align:center;"\|Summary
bgcolor=#{{storm colour\|cat1}} \| F1 \|E of Roy \|Bienville \|LA \|{{Coord\|32.22
93.12\|name=Roy (September 13, F1)}} \|14:30–? \|{{convert\|0.3\|mi\|km\|sortable=on}} \|{{convert\|100\|yd\|m\|sortable=on}} \|Weak tornado occurred southeast of Castor, causing $250 in damage.{{cite report \|title=Louisiana Event Report: F1 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032711 \|website=National Weather Service \|publisher=National Center for Environmental Information \|access-date=17 August 2020}}
bgcolor=#{{storm colour\|cat2}} \| F2 \|Acme to Williamsburg to N of Kalkaska \|Grand Traverse, Kalkaska \|MI \|{{Coord\|44.77
85.50\|name=Acme (September 13, F2)}} \|20:12–? \|{{convert\|14.4\|mi\|km\|sortable=on}} \|{{convert\|10\|yd\|m\|sortable=on}} \|Strong tornado touched down on the eastern shore of Grand Traverse Bay east of Traverse City and northeast of Fivemile Corner and moved due east. Multiple homes were damaged and numerous trees uprooted, including several cherry trees. Losses totaled $25,000.{{cite report \|title=Michigan Event Report: F2 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10038368 \|website=National Weather Service \|publisher=National Center for Environmental Information \|access-date=17 August 2020}}
bgcolor=#{{storm colour\|cat2}} \| F2 \|Latex \|Harrison \|TX \|{{Coord\|32.37
94.10\|name=Latex (September 13, F2)}} \|23:05–? \|{{convert\|0.1\|mi\|km\|sortable=on}} \|{{convert\|10\|yd\|m\|sortable=on}} \|Two homes and three garages were damaged. Two people were injured and losses totaled $5,000. The NCDC says the tornado caused $2,500 in damage.{{cite report \|title=Texas Event Report: F2 Tornado \|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120349 \|website=National Weather Service \|publisher=National Center for Environmental Information \|access-date=17 August 2020}}

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

|+ Confirmed tornadoes – Wednesday, September 13, 1961{{refn|group=nb|name=Date/Time}}{{refn|group=nb|name=Width}}

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

! 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
{{abbr|coord.|Coordinates}}

! 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;"|{{abbr|Max.|Maximum}} width

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

bgcolor=#{{storm colour|cat1}} | F1

|E of Roy

|Bienville

|LA

|{{Coord|32.22

93.12|name=Roy (September 13, F1)}}

|14:30–?

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

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

|Weak tornado occurred southeast of Castor, causing $250 in damage.{{cite report |title=Louisiana Event Report: F1 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10032711 |website=National Weather Service |publisher=National Center for Environmental Information |access-date=17 August 2020}}

bgcolor=#{{storm colour|cat2}} | F2

|Acme to Williamsburg to N of Kalkaska

|Grand Traverse, Kalkaska

|MI

|{{Coord|44.77

85.50|name=Acme (September 13, F2)}}

|20:12–?

|{{convert|14.4|mi|km|sortable=on}}

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

|Strong tornado touched down on the eastern shore of Grand Traverse Bay east of Traverse City and northeast of Fivemile Corner and moved due east. Multiple homes were damaged and numerous trees uprooted, including several cherry trees. Losses totaled $25,000.{{cite report |title=Michigan Event Report: F2 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10038368 |website=National Weather Service |publisher=National Center for Environmental Information |access-date=17 August 2020}}

bgcolor=#{{storm colour|cat2}} | F2

|Latex

|Harrison

|TX

|{{Coord|32.37

94.10|name=Latex (September 13, F2)}}

|23:05–?

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

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

|Two homes and three garages were damaged. Two people were injured and losses totaled $5,000. The NCDC says the tornado caused $2,500 in damage.{{cite report |title=Texas Event Report: F2 Tornado |url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10120349 |website=National Weather Service |publisher=National Center for Environmental Information |access-date=17 August 2020}}