The severe wind outbreak of June 23, 2010

380 wind reportsIllinois, Ohio, Indiana and 16 more states

380 damaging wind reports across 19 states between 1:15 AM and 11:45 PM CDT, 55 of them 65 knots (75 mph) or stronger; the strongest measured gust was 84 mph in St. Joseph County, IN. 23 hail reports and 12 tornadoes the same day.

Watch the day unfold

Severe wind day · June 23, 2010

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 380 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: 380; 98th of 15,807 days with wind reports since 1955
75 mph or more: 55; 12 of 86 mph (75 knots) or more
Strongest measured gust: 84 mph; 73 knots, St. Joseph County, IN
Measured: 49; reports with an instrument reading; the rest are estimates from damage
Killed by wind: 0; 4 injured
Counties reporting: 167; in 19 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, June 23, 2010

2:17 AM	Bremer County IA	100 mph	87	Estimated
8:12 PM	LaPorte County IN	100 mph	87	Estimated
9:10 PM	Williams County OH	100 mph	87	Estimated
2:16 AM	Bremer County IA	96 mph	83	Estimated
2:16 AM	Bremer County IA	96 mph	83	Estimated
10:24 PM	Auglaize County OH	96 mph	83	Estimated
2:25 AM	Fayette County IA	90 mph	78	Estimated
2:53 AM	Fayette County IA	90 mph	78	Estimated
6:15 PM	DuPage County IL	90 mph	78	Estimated
6:35 PM	Marinette County WI	90 mph	78	Estimated
8:16 PM	LaPorte County IN	90 mph	78	Estimated
2:50 AM	Fayette County IA	86 mph	75	Estimated
2:27 AM	Bremer County IA	85 mph	74	Estimated
5:46 PM	Bureau County IL	85 mph	74	Estimated
6:54 PM	Marinette County WI	85 mph	74	Estimated
7:52 PM	St. Joseph County IN	84 mph	73	Measured
5:40 PM	Kendall County IL	83 mph	72	Measured
7:50 PM	St. Joseph County IN	81 mph	70	Measured
8:07 PM	Cass County MI	81 mph	70	Measured
4:54 PM	Van Buren County IA	81 mph	70	Estimated
5:23 PM	Oneida County WI	81 mph	70	Estimated
5:36 PM	Henry County IL	81 mph	70	Estimated
5:45 PM	Bureau County IL	81 mph	70	Estimated
5:51 PM	Bureau County IL	81 mph	70	Estimated
5:57 PM	Will County IL	81 mph	70	Estimated
5:57 PM	Will County IL	81 mph	70	Estimated
6:25 PM	Cook County IL	81 mph	70	Estimated
6:45 PM	Livingston County IL	81 mph	70	Estimated
6:51 PM	Porter County IN	81 mph	70	Estimated
8:35 PM	Kosciusko County IN	81 mph	70	Estimated
2:25 AM	Black Hawk County IA	79 mph	69	Estimated
5:40 PM	Kendall County IL	78 mph	68	Measured
5:50 PM	Kane County IL	78 mph	68	Measured
8:38 PM	Whitley County IN	75 mph	65	Measured
2:28 AM	Bremer County IA	75 mph	65	Estimated
2:28 AM	Fayette County IA	75 mph	65	Estimated
3:35 PM	Tazewell County VA	75 mph	65	Estimated
5:05 PM	Lee County IL	75 mph	65	Estimated
5:30 PM	DuPage County IL	75 mph	65	Estimated
5:35 PM	DuPage County IL	75 mph	65	Estimated
5:35 PM	DuPage County IL	75 mph	65	Estimated
5:37 PM	Kendall County IL	75 mph	65	Estimated
5:42 PM	Kendall County IL	75 mph	65	Estimated
5:45 PM	Langlade County WI	75 mph	65	Estimated
5:45 PM	Kendall County IL	75 mph	65	Estimated
5:45 PM	Bureau County IL	75 mph	65	Estimated
5:50 PM	Forest County WI	75 mph	65	Estimated
5:54 PM	Will County IL	75 mph	65	Estimated
5:54 PM	Cook County IL	75 mph	65	Estimated
5:55 PM	Kane County IL	75 mph	65	Estimated
6:02 PM	Will County IL	75 mph	65	Estimated
6:17 PM	Cook County IL	75 mph	65	Estimated
6:22 PM	Cook County IL	75 mph	65	Estimated
6:25 PM	Cook County IL	75 mph	65	Estimated
6:25 PM	Cook County IL	75 mph	65	Estimated
6:24 PM	Cook County IL	72 mph	63	Measured
9:08 PM	Washtenaw County MI	72 mph	63	Measured
9:11 PM	Allen County IN	72 mph	63	Measured
8:13 PM	LaPorte County IN	71 mph	62	Measured
8:11 PM	Elkhart County IN	70 mph	61	Measured
10:35 PM	Washington County OK	70 mph	61	Measured
2:45 AM	Buchanan County IA	70 mph	61	Estimated
2:45 AM	Buchanan County IA	70 mph	61	Estimated
4:03 AM	Dubuque County IA	70 mph	61	Estimated
5:00 AM	Clinton County IA	70 mph	61	Estimated
5:00 AM	Clinton County IA	70 mph	61	Estimated
5:12 AM	Clinton County IA	70 mph	61	Estimated
5:00 PM	Des Moines County IA	70 mph	61	Estimated
5:01 PM	Henry County IL	70 mph	61	Estimated
5:10 PM	Henry County IL	70 mph	61	Estimated
5:10 PM	Henry County IL	70 mph	61	Estimated
5:10 PM	Anderson County KS	70 mph	61	Estimated
5:23 PM	Henry County IL	70 mph	61	Estimated
5:23 PM	Henry County IL	70 mph	61	Estimated
5:30 PM	Van Buren County IA	70 mph	61	Estimated
5:30 PM	Henderson County IL	70 mph	61	Estimated
5:30 PM	Henderson County IL	70 mph	61	Estimated
5:32 PM	Stark County IL	70 mph	61	Estimated
5:35 PM	Warren County IL	70 mph	61	Estimated
5:40 PM	Kendall County IL	70 mph	61	Estimated
5:40 PM	Warren County IL	70 mph	61	Estimated
5:50 PM	Putnam County IL	70 mph	61	Estimated
5:53 PM	LaSalle County IL	70 mph	61	Estimated
5:55 PM	Marshall County IL	70 mph	61	Estimated
6:02 PM	Will County IL	70 mph	61	Estimated
6:15 PM	Oconto County WI	70 mph	61	Estimated
6:30 PM	Eddy County NM	70 mph	61	Estimated
6:50 PM	Fulton County IL	70 mph	61	Estimated
6:51 PM	Will County IL	70 mph	61	Estimated
7:00 PM	Fulton County IL	70 mph	61	Estimated
7:40 PM	Kay County OK	70 mph	61	Estimated
7:46 PM	St. Joseph County IN	70 mph	61	Estimated
8:10 PM	Door County WI	70 mph	61	Estimated
10:19 PM	Montgomery County KS	70 mph	61	Estimated
6:56 PM	Lake County IN	69 mph	60	Measured
8:21 PM	Cass County MI	69 mph	60	Measured
8:29 PM	Hillsdale County MI	69 mph	60	Measured
9:01 PM	Huntington County IN	69 mph	60	Measured
1:55 PM	Putnam County OH	69 mph	60	Estimated
4:40 PM	Lee County IL	69 mph	60	Estimated

By state

Severe weather reports by state, June 23, 2010

Illinois	134	83 mph	5	1.00
Ohio	55	62 mph	4	1.00
Indiana	50	84 mph	0	—
Iowa	38	63 mph	1	0.75
Wisconsin	19	—	1	0.75
Michigan	17	81 mph	0	—
North Carolina	12	—	0	—
West Virginia	10	—	0	—
Oklahoma	9	70 mph	0	—
Virginia	9	—	0	—
Pennsylvania	8	63 mph	0	—
Missouri	5	58 mph	5	1.75
Kansas	4	58 mph	2	1.75
South Dakota	3	68 mph	0	—
New Mexico	2	63 mph	2	1.00
Texas	2	68 mph	0	—
Washington	1	—	2	1.25
PR	1	44 mph	0	—
South Carolina	1	—	0	—
New York	0	—	1	1.75

Counties with the most wind reports

Will CountyIL · 17 reports
Kendall CountyIL · 16 reports
Cook CountyIL · 14 reports
St. Joseph CountyIN · 10 reports
DuPage CountyIL · 8 reports
Henry CountyIL · 8 reports
Fulton CountyIL · 7 reports
Menard CountyIL · 6 reports
Kane CountyIL · 6 reports
Tazewell CountyVA · 6 reports

Hail and tornadoes that day

23 hail reports, 0 of 2 inches or more; 12 tornadoes.

Largest hail, June 23, 2010

6:20 PM	Cattaraugus County NY	1.75
6:45 PM	Macon County MO	1.75
7:17 PM	Sumner County KS	1.75
10:01 PM	Grant County WA	1.25
12:42 PM	Sandusky County OH	1.00
12:55 PM	Erie County OH	1.00
1:08 PM	Erie County OH	1.00
5:55 PM	Cook County IL	1.00
6:03 PM	Will County IL	1.00
6:35 PM	Quay County NM	1.00
10:05 PM	Grant County WA	1.00
4:42 PM	Livingston County MO	0.88
5:00 PM	Lee County IL	0.88
5:35 PM	Chaves County NM	0.88
5:35 PM	DuPage County IL	0.88
5:40 PM	DuPage County IL	0.88
7:17 PM	Cowley County KS	0.88
3:50 AM	Waukesha County WI	0.75
12:14 PM	Ottawa County OH	0.75
3:35 PM	Jackson County MO	0.75
4:08 PM	Muscatine County IA	0.75
4:23 PM	Jackson County MO	0.75
4:47 PM	Livingston County MO	0.75

EF1 tornado2:18 AM CDT
EF0 tornado3:22 AM CDT
EF1 tornado6:26 PM CDT
EF1 tornado7:59 PM CDT
EF1 tornado8:09 PM CDT
EF1 tornado8:14 PM CDT
EF1 tornado8:15 PM CDT
EF0 tornado8:16 PM CDT
EF0 tornado8:17 PM CDT
EF0 tornado8:50 PM CDT
EF0 tornado8:52 PM CDT
EF1 tornado9:06 PM CDT

2010 · 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.