YearFinal SPC data

2011

1,704 tornadoes in 2011, with 17,331 hail and 21,282 wind reports, from the NOAA SPC severe weather database.

Tornado recordHail + windDaily reports (soon)Storm Events narrativesEF ScaleMax path width

553

Tornado deaths

EF0 796 EF1 625 EF2 199 EF3 61 EF4 17 EF5 6

Hail and wind show significant reports only (2 in or larger, 65 kt or stronger). Click a legend item to show or hide it, or "only" to see just that. Select anything on the map to open its record.

Tornadoes by month

JanFebMarAprMayJunJulAugSepOctNovDec

Hail reports by month

JanFebMarAprMayJunJulAugSepOctNovDec

Wind reports by month

JanFebMarAprMayJunJulAugSepOctNovDec

Storm days

Every day with a tornado, hail or wind report. Warmer colors mean more tornadoes; gray days had hail or wind only; a white ring marks a day with an F4/EF4 or stronger tornado.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Running count

2011 against the years around it and the 1991 to 2020 average

20111991 to 2020 average2006 to 2016 (other years)

1,697 tornadoes in 2011, 38% above the 1991 to 2020 average of 1,231.

Counts by storm day (12Z to 12Z). Reporting changed a great deal over the decades, so years far from 1991 to 2020 are not a like-for-like comparison with the average.

Busiest tornado days

#	Day	Tornadoes	F/EF4+	Deaths	Strongest	States
1	04/27/11	176	15	316	EF5	AL, AR, FL, GA, IN, KY, MD, MO, MS, NC +7
2	04/26/11	113	0	3	EF3	AL, AR, FL, KY, LA, MI, MS, NC, NY, OK +2
3	05/25/11	94	0	0	EF3	AL, AR, CA, IA, IL, IN, KS, KY, LA, MO +3
4	04/19/11	80	0	0	EF3	AL, IL, IN, KY, MO, OH, OK
5	04/15/11	69	0	8	EF3	AL, GA, IL, KY, MO, MS
6	04/14/11	56	0	4	EF3	AR, KS, MS, OK, OR, TX
7	04/16/11	55	0	26	EF3	MD, NC, PA, SC, VA
8	04/25/11	50	0	5	EF3	AR, IN, KY, MO, MS, OK, TN, TX
9	05/24/11	49	4	18	EF5	AR, CO, KS, MO, OK, TX, VA
10	05/22/11	48	1	159	EF5	AR, IA, IL, IN, KS, MN, MO, ND, OK, TX +1
11	04/04/11	46	0	1	EF2	AR, GA, KY, LA, MD, MS, NC, OH, TN
12	06/20/11	37	0	0	EF3	IA, KS, ND, NE, TX
13	02/27/11	34	0	0	EF3	IL, IN, KS, KY, MO, OH, OK
14	04/09/11	28	1	0	EF4	IA, KY, NC, TN, VA
15	04/22/11	21	1	0	EF4	AR, IL, IN, KY, MO, OK

Busiest severe weather days

tornado, hail and wind reports together

#	Day	All reports	Tornadoes	Hail	Wind	Largest hail	Top gust
1	04/04/11	1,278	46	127	1,105	2.75 in	91 kt (105 mph)
2	05/25/11	1,062	94	467	501	4.5 in	87 kt (100 mph)
3	04/19/11	1,051	80	451	520	4.5 in	104 kt (120 mph)
4	05/22/11	823	48	492	283	4.5 in	76 kt (87 mph)
5	05/26/11	765	14	392	359	4.25 in	80 kt (92 mph)
6	06/09/11	756	3	401	352	4.25 in	96 kt (110 mph)
7	06/21/11	734	9	129	596	3 in	96 kt (110 mph)
8	04/27/11	712	176	203	333	4 in	87 kt (100 mph)
9	04/26/11	692	113	313	266	4.25 in	96 kt (110 mph)
10	05/24/11	629	49	275	305	6 in	131 kt (151 mph)
11	06/08/11	605	3	333	269	3 in	74 kt (85 mph)
12	06/18/11	600	17	221	362	4 in	83 kt (96 mph)
13	05/23/11	574	18	227	329	6 in	83 kt (96 mph)
14	06/26/11	527	7	172	348	2.75 in	80 kt (92 mph)
15	08/18/11	524	6	267	251	4.25 in	87 kt (100 mph)

Largest hail

top 15

#	Date	Size	Place
1	05/23/11	6 in	Kiowa County, OK
2	05/24/11	6 in	Rush County, KS
3	05/21/11	5.25 in	Shawnee County, KS
4	04/08/11	5 in	Butler County, KS
5	05/21/11	5 in	Burnet County, TX
6	04/15/11	4.5 in	Kemper County, MS
7	04/19/11	4.5 in	Pike County, MO
8	04/19/11	4.5 in	Ozark County, MO
9	04/20/11	4.5 in	Kimble County, TX
10	04/22/11	4.5 in	Warren County, MO
11	04/24/11	4.5 in	Taylor County, TX
12	05/10/11	4.5 in	Florence County, SC
13	05/10/11	4.5 in	Horry County, SC
14	05/10/11	4.5 in	Horry County, SC
15	05/10/11	4.5 in	Georgetown County, SC

Strongest wind gusts

top 15, measured first on ties

#	Date	Gust	mph	Type	Place
1	05/24/11	131 kt	151	Measured	Canadian County, OK
2	07/10/11	110 kt	127	Measured	Sargent County, ND
3	07/10/11	109 kt	125	Estimated	Dickey County, ND
4	08/09/11	109 kt	125	Estimated	Beaver County, OK
5	09/01/11	105 kt	121	Measured	Kittson County, MN
6	04/19/11	104 kt	120	Estimated	Hamilton County, IL
7	04/19/11	104 kt	120	Estimated	White County, IL
8	04/19/11	104 kt	120	Estimated	White County, IL
9	07/01/11	104 kt	120	Estimated	Burnett County, WI
10	07/01/11	104 kt	120	Estimated	Burnett County, WI
11	07/01/11	104 kt	120	Estimated	Burnett County, WI
12	07/11/11	104 kt	120	Estimated	Benton County, IA
13	07/11/11	104 kt	120	Estimated	Benton County, IA
14	08/01/11	104 kt	120	Estimated	Pope County, MN
15	09/01/11	104 kt	120	Estimated	Kittson County, MN

F4/EF4 and stronger

Date	Rating	Tornado	State	Length	Width	Deaths	Injuries
04/09/11	EF4	Albert City to Pocahontas, Iowa	IA	3.2 mi	587 yd	0	0
04/22/11	EF4	Maryland Heights, MO to Granite City, IL	MO, IL	21.3 mi	880 yd	0	5
04/27/11	EF5	Philadelphia to Macon, Mississippi	MS	28.3 mi	900 yd	3	6
04/27/11	EF4	Good Hope to New Hope, Alabama	AL	46.9 mi	880 yd	6	48
04/27/11	EF5	Hamilton, AL to Huntland, TN	AL, TN	132 mi	2,200 yd	72	145
04/27/11	EF4	Carrollton to Guntersville, Alabama	AL	128 mi	1,408 yd	13	54
04/27/11	EF5	Smithville, MS to Hackleburg, AL	MS, AL	37.3 mi	1,320 yd	23	137
04/27/11	EF4	Section, AL to Fort Oglethorpe, GA	AL, GA	47.0 mi	1,260 yd	14	50
04/27/11	EF4	Eutaw to Tarrant, Alabama	AL	80.7 mi	2,600 yd	64	1,500
04/27/11	EF4	Stevenson to New Hope, Alabama	AL	20.2 mi	1,320 yd	1	0
04/27/11	EF4	Raleigh, MS to Uniontown, AL	MS, AL	122 mi	1,050 yd	7	17
04/27/11	EF5	Geraldine to Ider, Alabama	AL	33.7 mi	1,320 yd	25	0
04/27/11	EF4	Clay, AL to Kingston, GA	AL, GA	97.3 mi	1,760 yd	22	85
04/27/11	EF4	Greenback to Townsend, Tennessee	TN	14.5 mi	1,320 yd	0	0
04/27/11	EF4	Ringgold, GA to Etowah, TN	GA, TN	48.0 mi	800 yd	20	335
04/27/11	EF4	Dunlap to Spring City, Tennessee	TN	40.2 mi	880 yd	4	12
04/27/11	EF4	Wetumpka to La Fayette, Alabama	AL	44.2 mi	880 yd	7	30
05/22/11	EF5	Galena to Granby, Missouri	MO	21.6 mi	1,600 yd	158	1,150
05/24/11	EF5	Hinton to Langston, Oklahoma	OK	63.1 mi	1,760 yd	9	181
05/24/11	EF4	Chickasha to Newcastle, Oklahoma	OK	33.3 mi	880 yd	1	48
05/24/11	EF4	Alex to Goldsby, Oklahoma	OK	23.1 mi	880 yd	0	61
05/24/11	EF4	Charleston to Lamar, Arkansas	AR	45.7 mi	2,200 yd	4	27
11/07/11	EF4	Tipton, Oklahoma	TX, OK	17.4 mi	500 yd	0	0

Deadliest tornadoes

Date	Rating	Tornado	State	Length	Width	Deaths	Injuries
05/22/11	EF5	Galena to Granby, Missouri	MO	21.6 mi	1,600 yd	158	1,150
04/27/11	EF5	Hamilton, AL to Huntland, TN	AL, TN	132 mi	2,200 yd	72	145
04/27/11	EF4	Eutaw to Tarrant, Alabama	AL	80.7 mi	2,600 yd	64	1,500
04/27/11	EF5	Geraldine to Ider, Alabama	AL	33.7 mi	1,320 yd	25	0
04/27/11	EF5	Smithville, MS to Hackleburg, AL	MS, AL	37.3 mi	1,320 yd	23	137
04/27/11	EF4	Clay, AL to Kingston, GA	AL, GA	97.3 mi	1,760 yd	22	85
04/27/11	EF4	Ringgold, GA to Etowah, TN	GA, TN	48.0 mi	800 yd	20	335
04/27/11	EF4	Section, AL to Fort Oglethorpe, GA	AL, GA	47.0 mi	1,260 yd	14	50
04/27/11	EF4	Carrollton to Guntersville, Alabama	AL	128 mi	1,408 yd	13	54
04/16/11	EF3	Windsor to Winton, North Carolina	NC	17.9 mi	1,300 yd	12	58
05/24/11	EF5	Hinton to Langston, Oklahoma	OK	63.1 mi	1,760 yd	9	181
04/27/11	EF3	Livingston to Wilton, Alabama	AL	72.1 mi	1,760 yd	7	50
04/27/11	EF4	Raleigh, MS to Uniontown, AL	MS, AL	122 mi	1,050 yd	7	17
04/27/11	EF4	Wetumpka to La Fayette, Alabama	AL	44.2 mi	880 yd	7	30
04/16/11	EF3	Carthage to Rolesville, North Carolina	NC	65.2 mi	500 yd	6	103

Storm days. A day here runs from 12Z to 12Z (6 a.m. CST to 6 a.m. CST the next morning), the way SPC counts storm days, so an overnight tornado counts with the afternoon and evening before it.
Reporting changed over time. Tornado counts rose from the 1990s on as Doppler radar, spotter networks and cameras caught more weak tornadoes. Counts from different decades are not directly comparable, especially for the weakest ratings.
F and EF ratings. The Enhanced Fujita (EF) Scale replaced the Fujita (F) Scale on 02/01/07. Both estimate wind speed from damage, but they use different damage indicators, so each rating is shown with its own scale.

Titan Archive · a Tornado Titans project Data: NOAA Storm Prediction Center severe weather database · updated 10/03/26