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The severe wind outbreak of June 6, 2020

428 wind reportsColorado, South Dakota, Wyoming and 19 more states

428 damaging wind reports across 22 states between 1:35 AM and 10:45 PM CDT, 70 of them 65 knots (75 mph) or stronger; the strongest measured gust was 110 mph in Grand County, CO. 33 hail reports and 8 tornadoes the same day.

Watch the day unfold

Severe wind day · June 6, 2020

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 428 that day
Strongest gust—measured, so far
Largest hail—so far

The day in numbers

Wind reports
428
67th of 15,807 days with wind reports since 1955
75 mph or more
70
11 of 86 mph (75 knots) or more
Strongest measured gust
110 mph
96 knots, Grand County, CO
Measured
234
reports with an instrument reading; the rest are estimates from damage
Killed by wind
0
5 injured
Counties reporting
138
in 22 states

Hour by hour

Damaging wind reports in each hour, Central Daylight Time.

Wind reports per hour, June 6, 2020 1 AM: 3 2 AM: 2 3 AM: 2 4 AM: 0 5 AM: 0 6 AM: 0 7 AM: 0 8 AM: 0 9 AM: 0 10 AM: 3 11 AM: 7 Noon: 4 1 PM: 21 2 PM: 27 3 PM: 18 4 PM: 60 5 PM: 73 73 6 PM: 55 7 PM: 69 8 PM: 43 9 PM: 31 10 PM: 10 1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM

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 6, 2020
4:00 PMGrand County CO110 mph96Measured0
1:14 PMGarfield County CO106 mph92Measured0
2:46 PMMesa County CO99 mph86Measured0
7:34 PMButte County SD94 mph82Measured0
9:56 PMDewey County SD94 mph82Measured0
8:54 PMJackson County SD92 mph80Measured0
4:10 PMGrand County CO92 mph80Estimated0
4:15 PMSummit County CO90 mph78Measured0
2:31 PMMoffat County CO90 mph78Estimated0
2:57 PMRio Blanco County CO86 mph75Measured0
5:45 PMEl Paso County CO86 mph75Estimated0
3:14 PMElbert County CO85 mph74Measured0
6:52 PMWeston County WY85 mph74Measured0
5:27 PMOneida County ID85 mph74Estimated0
4:52 PMWeld County CO82 mph71Measured0
7:55 PMButte County SD82 mph71Measured0
4:30 PMNatrona County WY81 mph70Measured0
5:52 PMDouglas County CO81 mph70Measured0
3:55 PMGrand County CO81 mph70Estimated0
4:10 PMGrand County CO81 mph70Estimated0
4:10 PMGrand County CO81 mph70Estimated0
4:55 PMArapahoe County CO81 mph70Estimated0
4:57 PMArapahoe County CO81 mph70Estimated0
5:00 PMDenver County CO81 mph70Estimated0
5:04 PMArapahoe County CO81 mph70Estimated0
5:06 PMWeld County CO81 mph70Estimated0
5:12 PMWeld County CO81 mph70Estimated0
5:59 PMArapahoe County CO81 mph70Estimated0
8:30 PMBennett County SD81 mph70Estimated0
8:50 PMBennett County SD81 mph70Estimated0
10:20 PMDewey County SD81 mph70Estimated0
10:45 PMWalworth County SD81 mph70Estimated0
2:54 PMSummit County CO79 mph69Measured0
5:40 PMPlatte County WY79 mph69Measured0
8:25 PMOglala Lakota County SD79 mph69Measured0
8:26 PMLogan County CO79 mph69Measured0
4:44 PMJefferson County CO78 mph68Measured0
5:01 PMDenver County CO78 mph68Measured0
5:04 PMAdams County CO78 mph68Measured0
5:34 PMWeld County CO78 mph68Measured0
5:34 PMElbert County CO78 mph68Measured0
5:56 PMCampbell County WY78 mph68Measured0
6:22 PMCampbell County WY78 mph68Measured0
8:33 PMHarding County SD78 mph68Measured0
3:20 AMValley County MT77 mph67Measured0
2:20 PMSweetwater County WY77 mph67Measured0
2:26 PMDaggett County UT77 mph67Measured0
4:12 PMCarbon County WY77 mph67Measured0
5:30 PMDouglas County CO77 mph67Measured0
6:34 PMFall River County SD77 mph67Measured0
6:34 PMNiobrara County WY77 mph67Measured0
8:19 PMHarding County SD77 mph67Measured0
1:36 AMFremont County WY76 mph66Measured0
4:55 PMArapahoe County CO76 mph66Measured0
5:10 PMJohnson County WY76 mph66Measured0
6:55 PMWashington County CO76 mph66Measured0
8:58 PMJackson County SD76 mph66Measured0
10:20 PMLyman County SD76 mph66Measured0
3:12 PMGrand County CO75 mph65Measured0
6:44 PMCuster County SD75 mph65Measured0
6:47 PMScotts Bluff County NE75 mph65Measured0
7:49 PMDawes County NE75 mph65Measured0
9:25 PMMeade County SD75 mph65Measured0
11:27 AMSan Juan County UT75 mph65Estimated0
12:59 PMDelta County CO75 mph65Estimated0
2:49 PMRoutt County CO75 mph65Estimated0
4:54 PMBox Elder County UT75 mph65Estimated0
5:00 PMAdams County CO75 mph65Estimated0
5:38 PMEl Paso County CO75 mph65Estimated0
7:07 PMScotts Bluff County NE75 mph65Estimated0
2:27 PMUintah County UT74 mph64Measured0
2:54 PMSummit County CO74 mph64Measured0
6:00 PMMcCook County SD74 mph64Measured0
6:05 PMConverse County WY74 mph64Measured0
6:05 PMCampbell County WY74 mph64Measured0
6:13 PMCampbell County WY74 mph64Measured0
6:15 PMCampbell County WY74 mph64Measured0
6:26 PMGoshen County WY74 mph64Measured0
7:15 PMLawrence County SD74 mph64Measured0
8:32 PMLyon County MN74 mph64Measured0
9:05 PMJackson County SD74 mph64Measured0
1:27 PMUintah County UT72 mph63Measured0
3:09 PMSummit County CO72 mph63Measured0
4:50 PMDenver County CO72 mph63Measured0
5:09 PMWeld County CO72 mph63Measured0
5:42 PMDouglas County CO72 mph63Measured0
7:21 PMBox Butte County NE72 mph63Measured0
7:35 PMLawrence County SD72 mph63Measured0
7:39 PMMeade County SD72 mph63Measured0
9:15 PMMeade County SD72 mph63Measured0
9:30 PMZiebach County SD72 mph63Measured0
3:34 PMAdams County CO71 mph62Measured0
4:50 PMArapahoe County CO71 mph62Measured0
4:51 PMBroomfield County CO71 mph62Measured0
5:00 PMBroomfield County CO71 mph62Measured0
5:35 PMConverse County WY71 mph62Measured0
5:52 PMAdams County CO71 mph62Measured0
7:24 PMCuster County SD71 mph62Measured0
7:44 PMButte County SD71 mph62Measured0
9:34 PMJackson County SD71 mph62Measured0

By state

Severe weather reports by state, June 6, 2020
Colorado137110 mph21.00
South Dakota7894 mph41.00
Wyoming5785 mph0—
Nebraska4175 mph51.75
Idaho2563 mph0—
Massachusetts2359 mph21.00
Virginia13—0—
Utah977 mph91.75
Maine9—41.00
New Hampshire7—21.25
Montana677 mph11.00
North Dakota461 mph31.25
West Virginia3—10.75
Connecticut3—0—
Florida3—0—
New York3—0—
Minnesota274 mph0—
Arizona1—0—
New Mexico166 mph0—
Nevada161 mph0—
Rhode Island1—0—
Texas1—0—

Counties with the most wind reports

Hail and tornadoes that day

33 hail reports, 0 of 2 inches or more; 8 tornadoes.

Largest hail, June 6, 2020
11:10 AMSan Juan County UT1.75
11:30 AMSan Juan County UT1.75
12:15 PMHolt County NE1.75
12:47 PMHolt County NE1.75
10:55 AMSan Juan County UT1.50
12:07 PMHolt County NE1.50
10:55 AMSan Juan County UT1.25
11:42 AMSan Juan County UT1.25
1:30 PMCarroll County NH1.25
12:15 AMWard County ND1.25
3:25 AMValley County MT1.00
6:29 AMCharles Mix County SD1.00
8:45 AMGosper County NE1.00
8:55 AMOxford County ME1.00
9:13 AMMcLean County ND1.00
10:40 AMSan Juan County UT1.00
11:08 AMGarfield County UT1.00
11:42 AMGrafton County NH1.00
11:50 AMMontezuma County CO1.00
12:07 PMYork County ME1.00
12:45 PMUintah County UT1.00
1:08 PMCharles Mix County SD1.00
1:40 PMYork County ME1.00
3:45 PMBottineau County ND1.00
3:55 PMMoffat County CO1.00
7:56 PMMiddlesex County MA1.00
8:11 PMMiddlesex County MA1.00
6:27 AMCharles Mix County SD0.88
9:06 AMGosper County NE0.88
9:10 AMOxford County ME0.75
12:15 PMWayne County UT0.75
1:12 PMCharles Mix County SD0.75
5:18 PMCabell County WV0.75
  • EF1 tornado3:51 PM CDT
  • EF0 tornado4:53 PM CDT
  • EF0 tornado4:59 PM CDT
  • EF0 tornado5:07 PM CDT
  • EF0 tornado5:20 PM CDT
  • EF0 tornado5:40 PM CDT
  • EF1 tornado6:20 PM CDT
  • EF0 tornado7:27 PM CDT

2020 · On this date in other years · The biggest severe wind days

  1. 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.
  2. Reporting has grown with population, spotter networks and the internet, so counts from different decades are not directly comparable.
  3. 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.