Alert archive / Minnesota / Watonwan County

Weather alerts in Watonwan County, Minnesota, 2020

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

Watonwan County and its neighbors

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

Alerts
127
Warnings
26
Watches
21
Advisories
39
Busiest month
June19 alerts
Busiest day
September 6, 20207 alerts

Over time

By month

Warning verification

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

Watonwan County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings8538%2100%16 min
Flash flood warnings00

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 3, 9:17 AM CSTWinter Weather AdvisoryMPX9 hr
Jan 3, 1:24 PM CSTMesoscale DiscussionSPC5 hr
Jan 4, 2:42 PM CSTWind AdvisoryMPX25 hr
Jan 12, 9:50 AM CSTWinter Weather AdvisoryMPX14 hr
Jan 13, 2:41 PM CSTWinter Weather AdvisoryMPX15 hr
Jan 14, 3:49 PM CSTWinter Weather AdvisoryMPX19 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 17, 3:49 AM CSTBlizzard WarningMPX38 hr
Jan 17, 6:32 AM CSTMesoscale DiscussionSPC5 hr
Jan 18, 2:23 PM CSTWind Chill AdvisoryMPX22 hr
Jan 21, 7:48 PM CSTWinter Weather AdvisoryMPX21 hr
Jan 22, 3:49 PM CSTDense Fog AdvisoryMPX20 hr
Feb 7, 3:06 AM CSTWinter Storm WatchMPX25 hr
Feb 8, 4:30 AM CSTWinter Storm WarningMPX34 hr
Feb 8, 4:30 AM CSTWinter Weather AdvisoryMPX34 hr
Feb 9, 1:16 AM CSTMesoscale DiscussionSPC5 hr
Feb 11, 2:19 PM CSTBlizzard WarningMPX28 hr
Feb 11, 8:13 PM CSTWind Chill WarningMPX38 hr
Feb 12, 4:30 AM CSTWinter Weather AdvisoryMPX18 hr
Feb 13, 3:41 AM CSTWind Chill AdvisoryMPX8 hr
Feb 13, 2:55 PM CSTWind Chill AdvisoryMPX18 hr
Feb 14, 3:02 AM CSTWind AdvisoryMPX7 hr
Feb 14, 10:14 AM CSTWind AdvisoryMPX5 hr
Feb 14, 2:46 PM CSTWinter Weather AdvisoryMPX9 hr
Feb 16, 2:54 PM CSTWinter Weather AdvisoryMPX33 hr
Feb 19, 3:35 PM CSTWind Chill AdvisoryMPX17 hr
Mar 4, 2:26 PM CSTWind AdvisoryMPX28 hr
Mar 19, 3:29 AM CDTWind AdvisoryMPX18 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, 6:26 AM CDTMesoscale DiscussionSPC4 hr
Apr 12, 12:38 PM CDTMesoscale DiscussionSPC3 hr
Apr 19, 2:39 PM CDTFire Weather WatchMPX13 hr
Apr 20, 3:49 AM CDTRed Flag WarningMPX14 hr
Apr 20, 9:44 AM CDTWind AdvisoryMPX9 hr
Apr 24, 6:04 PM CDTSpecial Weather StatementMPX26 min
Apr 27, 6:09 AM CDTFire Weather WatchMPX13 hr
May 2, 4:04 AM CDTRed Flag WarningMPX15 hr
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 9, 2:52 PM CDTSpecial Weather StatementMPX83 min
May 10, 2:41 AM CDTFreeze WarningMPX29 hr
May 11, 2:01 PM CDTFreeze WarningMPX19 hr
Jun 2, 3:52 PM CDTMesoscale DiscussionSPC113 min
Jun 2, 4:39 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 2, 5:14 PM CDTSevere Thunderstorm WarningMPX31 min
Jun 2, 5:32 PM CDTMesoscale DiscussionSPC118 min
Jun 2, 5:42 PM CDTSevere Thunderstorm WarningMPX48 min
Jun 4, 4:56 PM CDTSpecial Weather StatementMPX49 min
Jun 4, 5:14 PM CDTMesoscale DiscussionSPC91 min
Jun 4, 10:50 PM CDTMesoscale DiscussionSPC115 min
Jun 14, 3:15 AM CDTWind AdvisoryMPX17 hr
Jun 18, 3:39 PM CDTMesoscale DiscussionSPC96 min
Jun 18, 4:36 PM CDTSpecial Weather StatementMPX39 min
Jun 18, 5:12 PM CDTSpecial Weather StatementMPX33 min
Jun 21, 2:44 PM CDTMesoscale DiscussionSPC2 hr
Jun 21, 3:55 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 21, 3:59 PM CDTSevere Thunderstorm WarningMPX46 min
Jun 21, 4:28 PM CDTSevere Thunderstorm WarningMPX32 min
Jun 21, 5:57 PM CDTSpecial Weather StatementMPX33 min
Jun 21, 6:14 PM CDTMesoscale DiscussionSPC2 hr
Jun 29, 1:31 AM CDTFlash Flood WatchMPX10 hr
Jul 6, 4:17 AM CDTSpecial Weather StatementMPX88 min
Jul 6, 1:57 PM CDTMesoscale DiscussionSPC2 hr
Jul 7, 3:05 PM CDTHeat AdvisoryMPX29 hr
Jul 9, 4:47 AM CDTSevere Thunderstorm WarningMPX23 min
Jul 11, 12:06 PM CDTMesoscale DiscussionSPC114 min
Jul 11, 1:10 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 11, 2:57 PM CDTSevere Thunderstorm WarningMPX48 min
Jul 13, 7:34 PM CDTMesoscale DiscussionSPC116 min
Jul 16, 3:36 PM CDTExcessive Heat WatchMPX23 hr
Jul 17, 2:24 PM CDTExcessive Heat WarningMPX31 hr
Jul 18, 4:06 AM CDTSpecial Weather StatementMPX39 min
Jul 23, 3:06 AM CDTExcessive Heat WatchMPX12 hr
Jul 23, 2:37 PM CDTHeat AdvisoryMPX66 hr
Jul 25, 9:18 PM CDTFlash Flood WatchMPX12 hr
Aug 8, 1:26 PM CDTMesoscale DiscussionSPC94 min
Aug 8, 2:14 PM CDTSpecial Weather StatementMPX46 min
Aug 9, 3:54 AM CDTSpecial Weather StatementMPX66 min
Aug 9, 10:59 PM CDTMesoscale DiscussionSPC3 hr
Aug 12, 9:02 AM CDTSpecial Weather StatementMPX73 min
Aug 14, 1:57 PM CDTMesoscale DiscussionSPC2 hr
Aug 14, 5:35 PM CDTMesoscale DiscussionSPC85 min
Aug 21, 6:20 PM CDTSevere Thunderstorm WatchSPC8 hr
Aug 24, 3:40 AM CDTHeat AdvisoryMPX16 hr
Aug 25, 3:07 AM CDTHeat AdvisoryMPX16 hr
Aug 28, 1:28 AM CDTMesoscale DiscussionSPC92 min
Aug 28, 1:54 AM CDTSevere Thunderstorm WatchSPC7 hr
Aug 28, 4:04 AM CDTMesoscale DiscussionSPC86 min
Sep 5, 7:53 PM CDTMesoscale DiscussionSPC2 hr
Sep 5, 9:34 PM CDTSevere Thunderstorm WatchSPC7 hr
Sep 5, 11:26 PM CDTMesoscale DiscussionSPC94 min
Sep 6, 1:06 AM CDTMesoscale DiscussionSPC84 min
Sep 6, 1:30 AM CDTSevere Thunderstorm WarningMPX45 min
Sep 6, 2:01 AM CDTSevere Thunderstorm WarningMPX44 min
Sep 6, 2:32 AM CDTMesoscale DiscussionSPC88 min
Oct 1, 3:42 AM CDTFrost AdvisoryMPX28 hr
Oct 6, 3:26 AM CDTRed Flag WarningMPX16 hr
Oct 11, 3:52 PM CDTMesoscale DiscussionSPC83 min
Oct 11, 4:54 PM CDTSevere Thunderstorm WatchSPC8 hr
Oct 11, 9:02 PM CDTMesoscale DiscussionSPC118 min
Oct 13, 2:15 PM CDTWind AdvisoryMPX34 hr
Oct 13, 2:24 PM CDTFire Weather WatchMPX14 hr
Oct 14, 4:03 AM CDTRed Flag WarningMPX13 hr
Oct 19, 2:46 PM CDTWinter Weather AdvisoryMPX34 hr
Oct 31, 1:55 PM CDTWind AdvisoryMPX20 hr
Nov 5, 2:55 PM CSTFire Weather WatchMPX11 hr
Nov 6, 1:58 AM CSTRed Flag WarningMPX16 hr
Nov 7, 1:06 PM CSTWind AdvisoryMPX29 hr
Nov 9, 2:46 PM CSTWinter Storm WatchMPX14 hr
Nov 9, 8:44 PM CSTWinter Weather AdvisoryMPX29 hr
Nov 10, 4:52 AM CSTWinter Storm WarningMPX21 hr
Nov 10, 3:51 PM CSTMesoscale DiscussionSPC6 hr
Nov 14, 2:18 PM CSTWind AdvisoryMPX25 hr
Dec 6, 2:16 PM CSTDense Fog AdvisoryMPX23 hr
Dec 7, 6:06 PM CSTDense Fog AdvisoryMPX13 hr
Dec 21, 3:26 AM CSTWind AdvisoryMPX13 hr
Dec 22, 3:49 AM CSTWinter Storm WatchMPX23 hr
Dec 22, 9:08 PM CSTBlizzard WarningMPX30 hr
Dec 23, 9:38 AM CSTMesoscale DiscussionSPC5 hr
Dec 23, 5:15 PM CSTMesoscale DiscussionSPC6 hr
Dec 24, 2:43 AM CSTWind Chill AdvisoryMPX9 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.