Alert archive / Minnesota / Washington County

Weather alerts in Washington County, Minnesota, 2023

99 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Washington County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts
99
Warnings
24
Watches
14
Advisories
27
Busiest month
July34 alerts
Busiest day
August 11, 20237 alerts

Over time

By month

Warning verification

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

Washington County, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings9544%450%31 min
Flash flood warnings00

Each office's whole area, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Twin Cities, MN: tornado warnings12283%729%15 min
NWS Twin Cities, MN: severe thunderstorm warnings20311145%35573%19 min
NWS Twin Cities, MN: flash flood warnings5180%475%168 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 1, 3:10 PM CSTWinter Storm WarningMPX60 hr
Jan 1, 3:10 PM CSTWinter Weather AdvisoryMPX4 days
Jan 3, 6:09 AM CSTMesoscale DiscussionSPC6 hr
Jan 3, 1:23 PM CSTMesoscale DiscussionSPC4 hr
Jan 10, 2:28 PM CSTWinter Weather AdvisoryMPX21 hr
Jan 18, 3:13 AM CSTWinter Storm WarningMPX34 hr
Jan 18, 3:13 AM CSTWinter Weather AdvisoryMPX34 hr
Jan 28, 1:34 PM CSTWind Chill AdvisoryMPX22 hr
Jan 29, 1:48 PM CSTWind Chill AdvisoryMPX22 hr
Jan 30, 1:07 PM CSTWind Chill AdvisoryMPX21 hr
Feb 1, 2:57 PM CSTWind Chill AdvisoryMPX45 hr
Feb 14, 3:24 AM CSTWinter Weather AdvisoryMPX31 hr
Feb 19, 2:30 PM CSTWinter Storm WatchMPX30 hr
Feb 20, 2:09 PM CSTWinter Storm WarningMPX70 hr
Feb 22, 11:45 PM CSTMesoscale DiscussionSPC6 hr
Feb 23, 5:06 AM CSTMesoscale DiscussionSPC6 hr
Feb 26, 4:03 AM CSTWinter Weather AdvisoryMPX35 hr
Feb 27, 8:46 PM CSTWinter Weather AdvisoryMPX45 hr
Mar 5, 2:55 AM CSTWinter Weather AdvisoryMPX36 hr
Mar 7, 2:46 AM CSTWinter Storm WatchMPX36 hr
Mar 8, 3:02 PM CSTWinter Weather AdvisoryMPX39 hr
Mar 10, 2:50 PM CSTWinter Weather AdvisoryMPX57 hr
Mar 15, 3:40 AM CDTWinter Storm WatchMPX11 hr
Mar 15, 2:23 PM CDTWinter Weather AdvisoryMPX41 hr
Mar 29, 3:37 PM CDTWinter Storm WatchMPX30 hr
Mar 30, 9:23 PM CDTWinter Storm WarningMPX34 hr
Mar 31, 3:41 AM CDTBlizzard WarningMPX27 hr
Apr 12, 2:51 PM CDTFire Weather WatchMPX12 hr
Apr 13, 2:32 AM CDTRed Flag WarningMPX17 hr
Apr 13, 8:50 PM CDTRiver Flood WarningMPX22 days
Apr 13, 8:52 PM CDTRiver Flood WarningMPX17 days
Apr 14, 11:12 AM CDTRiver Flood WarningMPX21 days
Apr 15, 3:12 PM CDTWinter Weather AdvisoryMPX41 hr
Apr 15, 3:14 PM CDTWind AdvisoryMPX30 hr
May 1, 2:32 PM CDTFire Weather WatchMPX13 hr
May 2, 3:25 AM CDTRed Flag WarningMPX17 hr
May 18, 10:34 AM CDTRiver Flood WarningMPX6 days
May 18, 10:34 AM CDTRiver Flood WarningMPX21 days
Jun 24, 3:50 PM CDTMesoscale DiscussionSPC115 min
Jun 28, 3:09 PM CDTMesoscale DiscussionSPC2 hr
Jun 28, 9:01 PM CDTMesoscale DiscussionSPC89 min
Jul 3, 3:14 AM CDTHeat AdvisoryMPX17 hr
Jul 3, 3:07 PM CDTMesoscale DiscussionSPC113 min
Jul 3, 8:14 PM CDTSevere Thunderstorm WarningMPX46 min
Jul 4, 10:32 AM CDTSpecial Weather StatementMPX43 min
Jul 4, 10:57 AM CDTSevere Thunderstorm WarningMPX33 min
Jul 4, 11:06 AM CDTSpecial Weather StatementMPX24 min
Jul 10, 3:42 PM CDTMesoscale DiscussionSPC2 hr
Jul 13, 5:22 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 13, 7:17 PM CDTMesoscale DiscussionSPC88 min
Jul 13, 9:45 PM CDTSpecial Weather StatementMPX30 min
Jul 13, 10:02 PM CDTSevere Thunderstorm WarningMPX27 min
Jul 14, 3:10 PM CDTMesoscale DiscussionSPC3 hr
Jul 19, 3:17 PM CDTMesoscale DiscussionSPC88 min
Jul 19, 5:15 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 19, 5:17 PM CDTMesoscale DiscussionSPC88 min
Jul 19, 7:02 PM CDTSpecial Weather StatementMPX43 min
Jul 19, 7:57 PM CDTSevere Thunderstorm WarningMPX33 min
Jul 22, 3:36 PM CDTMesoscale DiscussionSPC114 min
Jul 22, 3:37 PM CDTSpecial Weather StatementMPX23 min
Jul 24, 2:06 PM CDTSpecial Weather StatementMPX24 min
Jul 24, 2:30 PM CDTSpecial Weather StatementMPX30 min
Jul 24, 2:58 PM CDTMesoscale DiscussionSPC2 hr
Jul 24, 4:24 PM CDTSevere Thunderstorm WarningMPX11 min
Jul 25, 2:23 PM CDTHeat AdvisoryMPX54 hr
Jul 26, 1:10 AM CDTMesoscale DiscussionSPC95 min
Jul 26, 1:12 AM CDTSpecial Weather StatementMPX63 min
Jul 26, 3:09 PM CDTExcessive Heat WarningMPX29 hr
Jul 27, 2:06 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 27, 7:05 PM CDTMesoscale DiscussionSPC85 min
Jul 27, 7:40 PM CDTFlood WatchMPX4 hr
Jul 28, 3:23 PM CDTMesoscale DiscussionSPC97 min
Jul 28, 4:04 PM CDTSevere Thunderstorm WatchSPC5 hr
Jul 28, 4:59 PM CDTSevere Thunderstorm WarningMPX31 min
Jul 28, 5:06 PM CDTSpecial Weather StatementMPX39 min
Aug 10, 11:53 PM CDTSpecial Weather StatementMPX52 min
Aug 11, 1:56 PM CDTMesoscale DiscussionSPC2 hr
Aug 11, 2:28 PM CDTSevere Thunderstorm WatchSPC8 hr
Aug 11, 4:00 PM CDTMesoscale DiscussionSPC2 hr
Aug 11, 4:22 PM CDTSevere Thunderstorm WarningMPX38 min
Aug 11, 5:00 PM CDTSevere Thunderstorm Warning Considerable damage threatMPX60 min
Aug 11, 5:29 PM CDTSevere Thunderstorm Warning Considerable damage threatMPX46 min
Aug 18, 1:58 PM CDTExcessive Heat WarningMPX31 hr
Aug 19, 3:03 PM CDTExcessive Heat WatchMPX36 hr
Aug 20, 2:19 PM CDTExcessive Heat WarningMPX4 days
Aug 21, 3:15 AM CDTHeat AdvisoryMPX4 days
Sep 2, 2:41 AM CDTHeat AdvisoryMPX4 days
Sep 5, 3:53 PM CDTSevere Thunderstorm WatchSPC7 hr
Sep 5, 6:09 PM CDTMesoscale DiscussionSPC96 min
Sep 8, 3:56 AM CDTDense Fog AdvisoryMPX5 hr
Sep 15, 10:53 PM CDTDense Fog AdvisoryMPX10 hr
Sep 29, 8:59 PM CDTSpecial Weather StatementMPX46 min
Sep 29, 11:18 PM CDTSpecial Weather StatementMPX27 min
Oct 8, 2:21 PM CDTFrost AdvisoryMPX19 hr
Oct 9, 2:49 PM CDTFrost AdvisoryMPX18 hr
Oct 24, 2:20 PM CDTSpecial Weather StatementMPX25 min
Nov 15, 2:09 PM CSTWind AdvisoryMPX29 hr
Dec 22, 1:37 AM CSTDense Fog AdvisoryMPX35 hr
Dec 30, 5:29 PM CSTWinter Weather AdvisoryMPX13 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 archive20222024

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.