The severe wind outbreak of July 24, 2012

304 wind reportsNorth Carolina, Illinois, Indiana and 25 more states

304 damaging wind reports across 28 states between 2:09 AM and 12:57 AM the next day CDT, 12 of them 65 knots (75 mph) or stronger; the strongest measured gust was 86 mph in Cumberland County, ME. 47 hail reports and 4 tornadoes the same day.

Watch the day unfold

Severe wind day · July 24, 2012

How the day unfolded

Every damaging wind report of the day at its logged time, with the day's hail reports and tornadoes, and the counties they reached.

About this replay

Central time—Historical replay — logged report times

Wind reports—of 304 that day

Strongest gust—measured, so far

Largest hail—so far

The day’s milestones

Wind reportsLarger and brighter with speed; filled when measured, a ring when estimated

Hail and tornadoesHail reports as diamonds; the day's tornado paths in green

Counties reportingLit at their first report, brighter with a 65-knot gust or 2-inch hail

Source: NOAA Storm Prediction Center severe weather database (wind, hail and tornado reports with their logged times and places). Each report is a damage or measurement report, not a separate storm; several can describe one gust front. Tornado paths are drawn at a typical forward speed of 35 mph. Times are Central Daylight Time.

The day in numbers

Wind reports: 304; on Tuesday, July 24, 2012
75 mph or more: 12; 2 of 86 mph (75 knots) or more
Strongest measured gust: 86 mph; 75 knots, Cumberland County, ME
Measured: 33; reports with an instrument reading; the rest are estimates from damage
Killed by wind: 0; 0 injured
Counties reporting: 148; in 28 states

Hour by hour

Damaging wind reports in each hour, Central Daylight Time.

The strongest winds

The 100 strongest reports with a speed. Measured gusts come from an instrument; estimated speeds are judged from damage.

Strongest wind reports, July 24, 2012

11:12 PM	Oneida County NY	110 mph	96	Estimated
11:55 AM	Cumberland County ME	86 mph	75	Measured
7:48 AM	Starke County IN	85 mph	74	Measured
7:10 AM	Lake County IN	81 mph	70	Estimated
7:03 AM	Lake County IN	75 mph	65	Measured
8:31 PM	Fallon County MT	75 mph	65	Measured
5:00 AM	Rock County WI	75 mph	65	Estimated
6:25 AM	Grundy County IL	75 mph	65	Estimated
7:29 AM	Porter County IN	75 mph	65	Estimated
7:33 AM	Jasper County IN	75 mph	65	Estimated
7:48 AM	Starke County IN	75 mph	65	Estimated
7:49 AM	Jasper County IN	75 mph	65	Estimated
4:45 AM	Rock County WI	70 mph	61	Estimated
5:35 AM	DeKalb County IL	70 mph	61	Estimated
5:35 AM	DeKalb County IL	70 mph	61	Estimated
5:36 AM	DeKalb County IL	70 mph	61	Estimated
5:38 AM	DeKalb County IL	70 mph	61	Estimated
5:45 AM	McHenry County IL	70 mph	61	Estimated
5:57 AM	Kane County IL	70 mph	61	Estimated
6:03 AM	Kane County IL	70 mph	61	Estimated
6:15 AM	DuPage County IL	70 mph	61	Estimated
6:19 AM	Grundy County IL	70 mph	61	Estimated
6:30 AM	Will County IL	70 mph	61	Estimated
6:30 AM	DuPage County IL	70 mph	61	Estimated
7:03 AM	Lake County IN	70 mph	61	Estimated
7:12 AM	Porter County IN	70 mph	61	Estimated
7:48 AM	Starke County IN	70 mph	61	Estimated
9:30 AM	Delaware County IN	70 mph	61	Estimated
9:40 AM	Delaware County IN	70 mph	61	Estimated
9:40 AM	Delaware County IN	70 mph	61	Estimated
12:16 PM	Hardy County WV	70 mph	61	Estimated
12:18 PM	Hardy County WV	70 mph	61	Estimated
3:25 PM	Frederick County MD	70 mph	61	Estimated
3:53 PM	Pitt County NC	70 mph	61	Estimated
4:30 PM	New Haven County CT	70 mph	61	Estimated
6:42 PM	Wibaux County MT	70 mph	61	Estimated
8:24 PM	Hettinger County ND	70 mph	61	Estimated
4:14 PM	Hampton VA	69 mph	60	Measured
4:25 AM	Grant County IN	69 mph	60	Estimated
8:19 AM	Fulton County IN	69 mph	60	Estimated
3:29 PM	Dutchess County NY	69 mph	60	Estimated
5:31 AM	McHenry County IL	67 mph	58	Measured
9:25 AM	Delaware County IN	66 mph	57	Measured
12:17 AM	Meade County SD	66 mph	57	Measured
5:14 AM	Winnebago County IL	64 mph	56	Measured
6:35 AM	Cook County IL	64 mph	56	Measured
2:29 PM	Chatham County NC	64 mph	56	Measured
3:45 AM	Iowa County WI	64 mph	56	Estimated
4:05 AM	Iowa County WI	64 mph	56	Estimated
4:05 AM	Lafayette County WI	64 mph	56	Estimated
4:16 AM	Green County WI	64 mph	56	Estimated
4:18 AM	Lafayette County WI	64 mph	56	Estimated
4:20 AM	Green County WI	64 mph	56	Estimated
5:15 AM	Henry County IN	64 mph	56	Estimated
5:16 AM	Walworth County WI	64 mph	56	Estimated
5:23 AM	Walworth County WI	64 mph	56	Estimated
5:40 AM	McHenry County IL	64 mph	56	Estimated
5:40 AM	DeKalb County IL	64 mph	56	Estimated
6:06 AM	Cook County IL	64 mph	56	Estimated
6:18 AM	DuPage County IL	64 mph	56	Estimated
6:20 AM	Kendall County IL	64 mph	56	Estimated
6:24 AM	Will County IL	64 mph	56	Estimated
6:32 AM	Will County IL	64 mph	56	Estimated
6:55 AM	Kankakee County IL	64 mph	56	Estimated
11:03 AM	Mineral County WV	64 mph	56	Estimated
11:15 AM	Mineral County WV	64 mph	56	Estimated
1:27 PM	Rockingham County VA	64 mph	56	Estimated
5:45 AM	Kane County IL	63 mph	55	Measured
6:50 AM	Cook County IL	63 mph	55	Measured
7:30 AM	LaPorte County IN	63 mph	55	Estimated
7:30 AM	LaPorte County IN	63 mph	55	Estimated
7:54 AM	Pulaski County IN	63 mph	55	Estimated
8:19 AM	Cass County IN	63 mph	55	Estimated
8:47 AM	Huntington County IN	63 mph	55	Estimated
12:30 PM	Fleming County KY	63 mph	55	Estimated
1:20 PM	Morgan County KY	63 mph	55	Estimated
2:44 PM	Allendale County SC	63 mph	55	Estimated
5:14 PM	Lancaster County SC	63 mph	55	Estimated
5:18 PM	Fairfield County SC	63 mph	55	Estimated
5:23 PM	Spartanburg County SC	63 mph	55	Estimated
11:25 PM	Grand Forks County ND	63 mph	55	Estimated
11:50 PM	Grand Forks County ND	63 mph	55	Estimated
2:30 PM	Washington County UT	62 mph	54	Measured
3:58 PM	Wayne County NC	62 mph	54	Measured
9:09 PM	Weston County WY	62 mph	54	Measured
11:15 PM	Pennington County SD	62 mph	54	Measured
6:09 AM	DuPage County IL	61 mph	53	Measured
6:32 AM	Cook County IL	61 mph	53	Measured
2:00 PM	San Juan County CO	61 mph	53	Measured
8:00 PM	Providence County RI	61 mph	53	Measured
2:09 AM	Winneshiek County IA	60 mph	52	Measured
4:42 AM	Green County WI	60 mph	52	Measured
4:56 AM	Stephenson County IL	60 mph	52	Measured
8:01 AM	Whitley County IN	60 mph	52	Measured
10:50 AM	Warren County OH	60 mph	52	Measured
3:00 AM	Hamilton County IN	60 mph	52	Estimated
4:40 AM	Stephenson County IL	60 mph	52	Estimated
4:45 AM	Stephenson County IL	60 mph	52	Estimated
5:00 AM	Jo Daviess County IL	60 mph	52	Estimated
5:01 AM	Stephenson County IL	60 mph	52	Estimated

By state

Severe weather reports by state, July 24, 2012

North Carolina	88	64 mph	0	—
Illinois	41	67 mph	0	—
Indiana	34	85 mph	0	—
Ohio	23	60 mph	3	1.75
South Carolina	17	—	1	0.75
Kentucky	12	—	0	—
Wisconsin	12	60 mph	0	—
Virginia	10	69 mph	0	—
West Virginia	9	—	0	—
South Dakota	6	66 mph	5	1.00
Maryland	5	—	1	1.00
Georgia	5	—	0	—
Connecticut	4	—	2	1.00
Montana	4	75 mph	1	1.00
Tennessee	4	—	1	1.00
Wyoming	4	62 mph	0	—
North Dakota	3	—	11	2.00
Massachusetts	3	—	7	1.75
Pennsylvania	3	—	5	1.25
Maine	3	86 mph	4	1.00
New Jersey	3	—	1	0.75
New York	3	—	1	0.75
Florida	2	—	0	—
Iowa	2	60 mph	0	—
New Hampshire	1	—	2	0.75
Rhode Island	1	61 mph	1	0.75
Colorado	1	61 mph	0	—
Utah	1	62 mph	0	—
Minnesota	0	—	1	1.00

Counties with the most wind reports

Randolph CountyNC · 15 reports
Wake CountyNC · 11 reports
Cook CountyIL · 9 reports
Craven CountyNC · 6 reports
Delaware CountyIN · 5 reports
DeKalb CountyIL · 5 reports
Stephenson CountyIL · 5 reports
Cumberland CountyNC · 5 reports
Tift CountyGA · 4 reports
Chatham CountyNC · 4 reports

Hail and tornadoes that day

47 hail reports, 1 of 2 inches or more; 4 tornadoes.

Largest hail, July 24, 2012

8:30 PM	Hettinger County ND	2.00
6:56 AM	Columbiana County OH	1.75
8:24 PM	Plymouth County MA	1.75
8:25 PM	Hettinger County ND	1.75
10:35 PM	Ransom County ND	1.50
7:00 AM	Allegheny County PA	1.25
7:12 AM	Allegheny County PA	1.25
7:14 AM	Allegheny County PA	1.25
7:27 AM	Allegheny County PA	1.25
2:20 PM	Essex County MA	1.25
10:05 PM	Ransom County ND	1.25
10:58 PM	Ransom County ND	1.25
11:10 PM	Barnes County ND	1.25
10:50 AM	Garrett County MD	1.00
12:05 PM	Cumberland County ME	1.00
12:18 PM	Lincoln County ME	1.00
3:32 PM	Meade County SD	1.00
3:37 PM	Meade County SD	1.00
4:00 PM	Fairfield County CT	1.00
4:12 PM	Washington County TN	1.00
6:05 PM	Meade County SD	1.00
6:30 PM	Wibaux County MT	1.00
8:24 PM	Hettinger County ND	1.00
9:00 PM	Hettinger County ND	1.00
9:35 PM	Bowman County ND	1.00
10:30 PM	Harding County SD	1.00
11:17 PM	Cass County ND	1.00
11:40 PM	Becker County MN	1.00
7:41 AM	Westmoreland County PA	0.88
11:48 AM	York County ME	0.88
2:26 PM	Essex County MA	0.88
4:03 PM	Litchfield County CT	0.88
10:58 PM	Cass County ND	0.88
6:44 AM	Columbiana County OH	0.75
10:18 AM	Preble County OH	0.75
11:36 AM	Strafford County NH	0.75
11:50 AM	Cumberland County ME	0.75
12:54 PM	Hillsborough County NH	0.75
1:46 PM	Worcester County MA	0.75
3:20 PM	Cape May County NJ	0.75
3:29 PM	Dutchess County NY	0.75
4:15 PM	Bristol County MA	0.75
4:30 PM	Barnstable County MA	0.75
5:55 PM	Anderson County SC	0.75
8:00 PM	Providence County RI	0.75
9:09 PM	Plymouth County MA	0.75
10:30 PM	Harding County SD	0.75

EF0 tornado3:08 PM CDT
EF0 tornado3:45 PM CDT
EF0 tornado4:57 PM CDT
EF0 tornado6:30 PM CDT

2012 · On this date in other years · The biggest severe wind days

A report is a single damage or measurement report to the National Weather Service. Several reports can describe one gust front, so reports are not storms.
Reporting has grown with population, spotter networks and the internet, so counts from different decades are not directly comparable.
Thunderstorm wind reports start at 50 knots (58 mph). SPC began flagging measured against estimated speeds in 2006; earlier reports are shown as estimated.

Storm Prediction Center severe weather database, 1955 to 2025. A day is SPC’s calendar date in Central Standard Time; a severe wind day here has 300 or more damaging wind reports, or 15 or more of 75 knots (86 mph) or more.