Alert archive / Wisconsin / Dunn County

Weather alerts in Dunn County, Wisconsin, 2020

100 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Dunn County and its neighbors

Each county as a circle sized by its count in 2020. Tap one for its archive.

Alerts
100
Warnings
24
Watches
14
Advisories
23
Busiest month
June21 alerts
Busiest day
June 29, 20209 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

1 of 2 tornado warnings covering Dunn County in 2020 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 26 minutes after it went out.

Dunn County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings2150%1100%26 min
Severe thunderstorm warnings7443%813%10 min
Flash flood warnings220%1100%66 min

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Twin Cities, MN: tornado warnings471568%4159%12 min
NWS Twin Cities, MN: severe thunderstorm warnings1949849%32870%20 min
NWS Twin Cities, MN: flash flood warnings181044%2685%126 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 8, 2:13 PM CSTWinter Weather AdvisoryMPX23 hr
Jan 13, 2:41 PM CSTWinter Weather AdvisoryMPX15 hr
Jan 15, 2:53 PM CSTWind Chill AdvisoryMPX18 hr
Jan 15, 2:53 PM CSTWinter Storm WatchMPX21 hr
Jan 16, 11:31 AM CSTWinter Storm WarningMPX54 hr
Jan 21, 7:48 PM CSTWinter Weather AdvisoryMPX21 hr
Feb 8, 4:30 AM CSTWinter Storm WatchMPX11 hr
Feb 8, 4:30 AM CSTWinter Storm WarningMPX34 hr
Feb 9, 6:39 AM CSTMesoscale DiscussionSPC4 hr
Feb 11, 8:13 PM CSTWind Chill AdvisoryMPX40 hr
Feb 13, 2:55 PM CSTWind Chill AdvisoryMPX18 hr
Feb 16, 2:54 PM CSTWinter Weather AdvisoryMPX33 hr
Apr 2, 3:35 AM CDTWinter Weather AdvisoryMPX42 hr
Apr 10, 3:30 PM CDTWinter Storm WatchMPX23 hr
Apr 11, 2:42 PM CDTWinter Storm WarningMPX37 hr
Apr 12, 12:38 PM CDTMesoscale DiscussionSPC3 hr
Apr 20, 4:16 PM CDTSpecial Weather StatementMPX44 min
May 7, 3:46 AM CDTFreeze WatchMPX23 hr
May 7, 3:46 AM CDTFreeze WarningMPX29 hr
May 8, 3:11 AM CDTFreeze WarningMPX29 hr
May 10, 2:41 AM CDTFreeze WarningMPX29 hr
May 11, 2:01 PM CDTFreeze WarningMPX19 hr
May 25, 8:56 AM CDTSevere Thunderstorm WarningMPX34 min
May 26, 1:14 PM CDTSpecial Weather StatementMPX2 hr
May 26, 4:33 PM CDTSevere Thunderstorm WarningMPX57 min
May 26, 4:56 PM CDTFlash Flood WatchMPX11 hr
May 26, 6:02 PM CDTMesoscale DiscussionSPC88 min
Jun 2, 3:52 PM CDTMesoscale DiscussionSPC113 min
Jun 2, 4:05 PM CDTSpecial Weather StatementMPX40 min
Jun 2, 4:36 PM CDTSpecial Weather StatementMPX39 min
Jun 2, 4:39 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 5, 1:20 AM CDTSpecial Weather StatementMPX40 min
Jun 8, 1:45 PM CDTFlash Flood WatchMPX35 hr
Jun 21, 3:05 AM CDTDense Fog AdvisoryMPX6 hr
Jun 21, 3:22 PM CDTMesoscale DiscussionSPC113 min
Jun 21, 3:55 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 21, 5:26 PM CDTSpecial Weather StatementMPX49 min
Jun 21, 6:14 PM CDTMesoscale DiscussionSPC2 hr
Jun 28, 8:59 PM CDTSpecial Weather StatementMPX61 min
Jun 28, 9:50 PM CDTSevere Thunderstorm WarningMPX25 min
Jun 29, 1:22 AM CDTMesoscale DiscussionSPC2 hr
Jun 29, 1:31 AM CDTFlash Flood WatchMPX10 hr
Jun 29, 2:04 AM CDTFlash Flood WarningMPX5 hr
Jun 29, 4:53 AM CDTFlash Flood WarningMPX3 hr
Jun 29, 6:48 AM CDTAreal Flood WarningMPX10 hr
Jun 29, 7:40 AM CDTAreal Flood WarningMPX5 hr
Jun 29, 12:49 PM CDTAreal Flood WarningMPX3 hr
Jun 30, 1:34 AM CDTSpecial Weather StatementMPX3 hr
Jul 7, 3:05 PM CDTHeat AdvisoryMPX29 hr
Jul 9, 7:10 AM CDTSpecial Weather StatementMPX35 min
Jul 14, 7:58 AM CDTMesoscale DiscussionSPC92 min
Jul 14, 8:06 AM CDTSpecial Weather StatementMPX39 min
Jul 16, 3:36 PM CDTExcessive Heat WatchMPX23 hr
Jul 17, 2:24 PM CDTHeat AdvisoryMPX31 hr
Jul 17, 9:03 PM CDTMesoscale DiscussionSPC117 min
Jul 17, 10:25 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 17, 11:36 PM CDTMesoscale DiscussionSPC114 min
Jul 18, 1:31 AM CDTMesoscale DiscussionSPC89 min
Jul 18, 3:43 AM CDTSpecial Weather StatementMPX32 min
Jul 18, 3:12 PM CDTMesoscale DiscussionSPC93 min
Jul 18, 3:53 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 18, 8:36 PM CDTMesoscale DiscussionSPC114 min
Jul 21, 1:43 PM CDTMesoscale DiscussionSPC2 hr
Jul 21, 5:42 PM CDTTornado WarningMPX33 min
Jul 21, 6:13 PM CDTMesoscale DiscussionSPC62 min
Jul 21, 6:15 PM CDTTornado WarningMPX60 min
Jul 21, 7:18 PM CDTSpecial Weather StatementMPX57 min
Jul 23, 2:37 PM CDTHeat AdvisoryMPX66 hr
Aug 8, 5:53 PM CDTSevere Thunderstorm WarningMPX37 min
Aug 9, 12:30 PM CDTMesoscale DiscussionSPC3 hr
Aug 9, 10:59 PM CDTMesoscale DiscussionSPC3 hr
Aug 10, 2:30 AM CDTMesoscale DiscussionSPC90 min
Aug 14, 5:38 PM CDTSevere Thunderstorm WatchSPC5 hr
Aug 14, 8:50 PM CDTSevere Thunderstorm WarningMPX40 min
Aug 14, 9:29 PM CDTSevere Thunderstorm WarningMPX31 min
Aug 14, 10:01 PM CDTSpecial Weather StatementMPX44 min
Aug 21, 9:54 PM CDTMesoscale DiscussionSPC2 hr
Aug 24, 10:55 PM CDTMesoscale DiscussionSPC2 hr
Aug 25, 12:26 AM CDTSpecial Weather StatementMPX49 min
Aug 25, 12:32 AM CDTSevere Thunderstorm WarningMPX58 min
Aug 28, 6:31 AM CDTSpecial Weather StatementMPX59 min
Aug 28, 6:59 AM CDTMesoscale DiscussionSPC91 min
Sep 9, 2:45 AM CDTFrost AdvisoryMPX28 hr
Sep 10, 2:44 PM CDTFrost AdvisoryMPX18 hr
Sep 18, 4:07 AM CDTFreeze WarningMPX4 hr
Sep 25, 12:25 AM CDTDense Fog AdvisoryMPX8 hr
Sep 26, 5:17 PM CDTMesoscale DiscussionSPC118 min
Oct 1, 3:42 AM CDTFreeze WarningMPX28 hr
Oct 3, 2:59 PM CDTFrost AdvisoryMPX18 hr
Oct 19, 2:46 PM CDTWinter Weather AdvisoryMPX34 hr
Oct 20, 11:53 AM CDTWinter Storm WarningMPX13 hr
Oct 31, 1:55 PM CDTWind AdvisoryMPX20 hr
Nov 9, 2:46 PM CSTWinter Storm WatchMPX14 hr
Nov 9, 8:44 PM CSTWinter Weather AdvisoryMPX29 hr
Nov 10, 9:19 AM CSTMesoscale DiscussionSPC5 hr
Nov 14, 2:18 PM CSTWind AdvisoryMPX25 hr
Nov 24, 8:40 PM CSTDense Fog AdvisoryMPX8 hr
Dec 22, 2:50 PM CSTWinter Weather AdvisoryMPX36 hr
Dec 23, 5:15 PM CSTMesoscale DiscussionSPC6 hr
Dec 28, 3:18 AM CSTWinter Weather AdvisoryMPX47 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20192021

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.