The severe wind outbreak of June 23, 2015

451 wind reportsPennsylvania, Maryland, New York and 25 more states

451 damaging wind reports across 28 states between 1:15 AM and 12:44 AM the next day CDT, 11 of them 65 knots (75 mph) or stronger; the strongest measured gust was 77 mph in Lorain County, OH. 71 hail reports and 3 tornadoes the same day.

Watch the day unfold

Severe wind day · June 23, 2015

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 451 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: 451; 55th of 15,807 days with wind reports since 1955
75 mph or more: 11; 1 of 86 mph (75 knots) or more
Strongest measured gust: 77 mph; 67 knots, Lorain County, OH
Measured: 34; reports with an instrument reading; the rest are estimates from damage
Killed by wind: 1; 14 injured
Counties reporting: 157; 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, June 23, 2015

4:52 AM	Warren County PA	90 mph	78	Estimated	1
4:45 PM	Delaware County PA	85 mph	74	Estimated	0
4:55 PM	Gloucester County NJ	85 mph	74	Estimated	0
11:35 AM	Centre County PA	81 mph	70	Estimated	0
6:59 PM	Charles County MD	81 mph	70	Estimated	0
4:28 AM	Lorain County OH	77 mph	67	Measured	0
4:50 PM	Delaware County PA	75 mph	65	Estimated	0
4:51 PM	Delaware County PA	75 mph	65	Estimated	0
4:54 PM	Gloucester County NJ	75 mph	65	Estimated	0
4:57 PM	Gloucester County NJ	75 mph	65	Estimated	0
5:20 PM	Burlington County NJ	75 mph	65	Estimated	0
5:04 PM	Philadelphia County PA	72 mph	63	Measured	0
5:50 PM	Ocean County NJ	72 mph	63	Measured	0
5:00 PM	Delaware County PA	71 mph	62	Measured	0
5:25 PM	Atlantic County NJ	71 mph	62	Measured	0
3:51 PM	McKinley County NM	70 mph	61	Measured	0
5:55 PM	Ocean County NJ	70 mph	61	Measured	0
2:15 PM	Orange County NY	70 mph	61	Estimated	0
3:00 PM	Fairfield County CT	70 mph	61	Estimated	0
3:05 PM	Fairfield County CT	70 mph	61	Estimated	0
3:10 PM	Fairfield County CT	70 mph	61	Estimated	0
3:13 PM	New Haven County CT	70 mph	61	Estimated	0
3:18 PM	Fairfield County CT	70 mph	61	Estimated	0
3:40 PM	New Haven County CT	70 mph	61	Estimated	0
3:40 PM	New Haven County CT	70 mph	61	Estimated	0
4:08 PM	New London County CT	70 mph	61	Estimated	0
4:10 PM	New London County CT	70 mph	61	Estimated	0
4:33 PM	Harford County MD	70 mph	61	Estimated	0
4:36 PM	Baltimore County MD	70 mph	61	Estimated	0
4:37 PM	Montgomery County PA	70 mph	61	Estimated	0
4:58 PM	Gloucester County NJ	70 mph	61	Estimated	0
4:58 PM	Montgomery County MD	70 mph	61	Estimated	0
4:59 PM	Gloucester County NJ	70 mph	61	Estimated	0
5:00 PM	Montgomery County MD	70 mph	61	Estimated	0
5:03 PM	Montgomery County MD	70 mph	61	Estimated	0
5:05 PM	Philadelphia County PA	70 mph	61	Estimated	0
5:19 PM	Howard County MD	70 mph	61	Estimated	0
5:22 PM	Queens County NY	70 mph	61	Estimated	0
5:30 PM	Nassau County NY	70 mph	61	Estimated	0
6:31 PM	Alexandria VA	70 mph	61	Estimated	0
7:00 PM	Suffolk County NY	70 mph	61	Estimated	0
7:02 PM	Charles County MD	70 mph	61	Estimated	0
7:02 PM	Charles County MD	70 mph	61	Estimated	0
7:03 PM	Charles County MD	70 mph	61	Estimated	0
7:12 PM	Suffolk County NY	70 mph	61	Estimated	0
8:05 PM	St. Mary's County MD	70 mph	61	Estimated	0
11:25 AM	Essex County MA	69 mph	60	Measured	0
5:30 PM	Atlantic County NJ	69 mph	60	Measured	0
5:08 AM	McKean County PA	69 mph	60	Estimated	0
7:30 AM	Clearfield County PA	69 mph	60	Estimated	0
7:42 AM	Clearfield County PA	69 mph	60	Estimated	0
8:15 AM	Centre County PA	69 mph	60	Estimated	0
10:28 AM	Clearfield County PA	69 mph	60	Estimated	0
11:16 AM	Centre County PA	69 mph	60	Estimated	0
12:05 PM	Northumberland County PA	69 mph	60	Estimated	0
4:00 PM	Lancaster County PA	69 mph	60	Estimated	0
4:00 PM	Lancaster County PA	69 mph	60	Estimated	0
4:00 PM	Lancaster County PA	69 mph	60	Estimated	0
4:02 PM	Lancaster County PA	69 mph	60	Estimated	0
4:10 PM	York County PA	69 mph	60	Estimated	0
8:03 PM	King George County VA	69 mph	60	Estimated	0
4:47 PM	Dale County AL	68 mph	59	Measured	0
5:38 PM	Apache County AZ	68 mph	59	Measured	0
5:50 PM	Suffolk County NY	68 mph	59	Measured	0
6:00 PM	Ocean County NJ	68 mph	59	Measured	0
6:56 PM	Suffolk County NY	68 mph	59	Measured	0
2:11 PM	Harrison County MS	67 mph	58	Measured	0
2:11 PM	Harrison County MS	67 mph	58	Measured	0
6:45 PM	Talbot County MD	67 mph	58	Measured	0
4:45 PM	New Castle County DE	66 mph	57	Measured	0
5:10 PM	Camden County NJ	66 mph	57	Measured	0
7:40 PM	Fallon County MT	66 mph	57	Measured	0
5:19 PM	Montgomery County MD	64 mph	56	Measured	0
5:52 PM	Ocean County NJ	64 mph	56	Measured	0
1:25 AM	Lenawee County MI	64 mph	56	Estimated	0
1:33 AM	Lenawee County MI	64 mph	56	Estimated	0
3:00 PM	Marion County FL	64 mph	56	Estimated	0
4:43 PM	Delaware County PA	64 mph	56	Estimated	0
4:44 PM	Delaware County PA	64 mph	56	Estimated	0
4:46 PM	Delaware County PA	64 mph	56	Estimated	0
4:47 PM	New Castle County DE	64 mph	56	Estimated	0
4:50 PM	Salem County NJ	64 mph	56	Estimated	0
4:50 PM	Delaware County PA	64 mph	56	Estimated	0
5:01 PM	Gloucester County NJ	64 mph	56	Estimated	0
5:07 PM	Camden County NJ	64 mph	56	Estimated	0
5:10 PM	Gloucester County NJ	64 mph	56	Estimated	0
5:12 PM	Camden County NJ	64 mph	56	Estimated	0
5:12 PM	Camden County NJ	64 mph	56	Estimated	0
5:13 PM	Camden County NJ	64 mph	56	Estimated	0
5:15 PM	Gloucester County NJ	64 mph	56	Estimated	0
5:15 PM	Camden County NJ	64 mph	56	Estimated	0
5:16 PM	Burlington County NJ	64 mph	56	Estimated	0
5:18 PM	Camden County NJ	64 mph	56	Estimated	0
5:25 PM	Burlington County NJ	64 mph	56	Estimated	0
7:30 PM	Sussex County DE	64 mph	56	Estimated	0
4:53 PM	Dale County AL	63 mph	55	Measured	0
3:00 AM	Lake County OH	63 mph	55	Estimated	0
4:42 AM	Lake County OH	63 mph	55	Estimated	0
1:45 PM	Pulaski County GA	63 mph	55	Estimated	0
1:45 PM	Crisp County GA	63 mph	55	Estimated	0

By state

Severe weather reports by state, June 23, 2015

Pennsylvania	100	72 mph	3	1.00
Maryland	71	67 mph	9	4.00
New York	55	68 mph	4	1.75
New Jersey	47	72 mph	0	—
Virginia	27	—	3	1.00
Massachusetts	22	69 mph	3	1.00
Connecticut	21	—	0	—
Florida	19	61 mph	3	1.00
Delaware	14	66 mph	0	—
Alabama	13	68 mph	3	1.75
Georgia	9	—	0	—
Tennessee	7	—	3	1.00
Rhode Island	7	—	0	—
Ohio	6	77 mph	1	0.75
West Virginia	4	—	4	1.00
Louisiana	4	—	0	—
Mississippi	4	67 mph	0	—
South Carolina	3	—	3	1.00
New Hampshire	3	—	1	1.00
Maine	3	—	0	—
Michigan	3	—	0	—
Indiana	2	—	1	0.75
North Dakota	2	61 mph	0	—
Colorado	1	60 mph	2	1.00
Arizona	1	68 mph	0	—
Montana	1	66 mph	0	—
New Mexico	1	70 mph	0	—
Vermont	1	—	0	—
Nebraska	0	—	16	2.50
Kansas	0	—	6	1.75
Wyoming	0	—	6	1.75

Counties with the most wind reports

Anne Arundel CountyMD · 19 reports
Montgomery CountyMD · 14 reports
Lawrence CountyPA · 14 reports
New Castle CountyDE · 13 reports
Barnstable CountyMA · 12 reports
Gloucester CountyNJ · 12 reports
Delaware CountyPA · 11 reports
Camden CountyNJ · 10 reports
Burlington CountyNJ · 9 reports
Harford CountyMD · 8 reports

Hail and tornadoes that day

71 hail reports, 5 of 2 inches or more; 3 tornadoes.

Largest hail, June 23, 2015

4:36 PM	Baltimore County MD	4.00
4:33 PM	Baltimore County MD	3.00
12:13 PM	Jefferson County NE	2.50
12:45 PM	Jefferson County NE	2.50
10:30 AM	Thayer County NE	2.00
10:05 AM	Thayer County NE	1.75
12:03 PM	Jefferson County NE	1.75
12:06 PM	Thayer County NE	1.75
1:24 PM	Washington County KS	1.75
1:32 PM	Washington County KS	1.75
2:07 PM	Baldwin County AL	1.75
4:35 PM	Baltimore County MD	1.75
4:36 PM	Baltimore County MD	1.75
4:38 PM	Baltimore County MD	1.75
5:07 PM	Baltimore County MD	1.75
5:40 PM	Nassau County NY	1.75
11:12 PM	Johnson County WY	1.75
12:20 AM	Campbell County WY	1.75
11:40 AM	Jefferson County NE	1.50
4:33 PM	Baltimore County MD	1.50
12:25 AM	Campbell County WY	1.50
10:34 AM	Thayer County NE	1.25
11:25 AM	Jefferson County NE	1.25
4:36 PM	Baltimore County MD	1.25
9:18 AM	Thayer County NE	1.00
10:50 AM	Jefferson County NE	1.00
11:58 AM	Marshall County KS	1.00
1:00 PM	Thayer County NE	1.00
1:12 PM	Washington County KS	1.00
1:55 PM	Pike County PA	1.00
2:53 PM	Mobile County AL	1.00
3:05 PM	Cumberland County PA	1.00
3:05 PM	Preston County WV	1.00
3:19 PM	Berkshire County MA	1.00
3:24 PM	Berkshire County MA	1.00
4:20 PM	Greenville County SC	1.00
4:21 PM	Baltimore County MD	1.00
4:25 PM	Grafton County NH	1.00
4:37 PM	Jefferson County WV	1.00
4:39 PM	Norfolk County MA	1.00
4:41 PM	Duval County FL	1.00
5:28 PM	Loudoun County VA	1.00
5:30 PM	Loudoun County VA	1.00
5:31 PM	Loudoun County VA	1.00
5:45 PM	Richland County SC	1.00
5:52 PM	Suffolk County NY	1.00
5:55 PM	McDowell County WV	1.00
8:22 PM	Lincoln County CO	1.00
8:30 PM	Rutherford County TN	1.00
8:33 PM	Lincoln County CO	1.00

EF0 tornado12:39 PM CDT
EF0 tornado4:35 PM CDT
EF0 tornado6:24 PM CDT

2015 · 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.