Alert archive / Minnesota / Koochiching County

Weather alerts in Koochiching County, Minnesota, 2024

105 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Koochiching County and its neighbors

Each county as a circle sized by its count in 2024. Tap one for its archive.

Alerts
105
Warnings
19
Watches
15
Advisories
35
Busiest month
June32 alerts
Busiest day
June 18, 202410 alerts

Over time

By month

Warning verification

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

Koochiching County, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings11191%0
Flash flood warnings110%0

Each office's whole area, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Duluth, MN: tornado warnings24579%2596%12 min
NWS Duluth, MN: severe thunderstorm warnings945245%19873%26 min
NWS Duluth, MN: flash flood warnings12742%5483%145 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 4, 2:35 AM CSTWinter Weather AdvisoryDLH71 hr
Jan 13, 2:30 PM CSTWind Chill AdvisoryDLH70 hr
Jan 16, 3:34 PM CSTWind Chill AdvisoryDLH17 hr
Jan 19, 1:45 PM CSTWind Chill AdvisoryDLH20 hr
Jan 28, 1:25 AM CSTDense Fog AdvisoryDLH9 hr
Feb 3, 8:50 PM CSTDense Fog AdvisoryDLH15 hr
Feb 4, 3:03 PM CSTDense Fog AdvisoryDLH21 hr
Feb 26, 2:50 AM CSTWinter Storm WatchDLH12 hr
Feb 26, 2:49 PM CSTWinter Storm WarningDLH27 hr
Feb 27, 8:45 AM CSTMesoscale DiscussionSPC4 hr
Feb 27, 2:10 PM CSTWind Chill AdvisoryDLH20 hr
Feb 28, 5:51 PM CSTWind Chill AdvisoryDLH14 hr
Mar 22, 3:46 AM CDTWinter Storm WatchDLH33 hr
Mar 23, 3:35 AM CDTWinter Storm WarningDLH4 days
Mar 25, 12:51 PM CDTWinter Weather AdvisoryDLH57 hr
Apr 16, 8:43 AM CDTRed Flag WarningDLH12 hr
May 10, 12:43 PM CDTFrost AdvisoryDLH19 hr
May 12, 2:50 AM CDTFrost AdvisoryDLH29 hr
May 13, 2:10 PM CDTFrost AdvisoryDLH18 hr
May 20, 3:04 PM CDTFlood WatchDLH40 hr
May 25, 1:05 PM CDTFrost AdvisoryDLH18 hr
May 28, 2:19 AM CDTFrost AdvisoryDLH29 hr
Jun 4, 12:24 PM CDTMesoscale DiscussionSPC3 hr
Jun 4, 1:54 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 4, 3:25 PM CDTSpecial Weather StatementDLH20 min
Jun 4, 4:23 PM CDTSpecial Weather StatementDLH22 min
Jun 9, 1:46 PM CDTFrost AdvisoryDLH17 hr
Jun 12, 2:33 PM CDTMesoscale DiscussionSPC117 min
Jun 12, 3:32 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 12, 11:29 PM CDTSpecial Weather StatementDLH31 min
Jun 16, 2:58 PM CDTSpecial Weather StatementDLH32 min
Jun 16, 4:22 PM CDTFlood WatchDLH63 hr
Jun 18, 2:08 AM CDTSevere Thunderstorm WatchSPC6 hr
Jun 18, 4:29 AM CDTSpecial Weather StatementDLH31 min
Jun 18, 4:52 AM CDTSpecial Weather StatementDLH23 min
Jun 18, 5:02 AM CDTSevere Thunderstorm WarningDLH58 min
Jun 18, 5:09 AM CDTSevere Thunderstorm WarningDLH52 min
Jun 18, 6:03 AM CDTSpecial Weather StatementDLH27 min
Jun 18, 6:03 AM CDTMesoscale DiscussionSPC87 min
Jun 18, 6:27 AM CDTSpecial Weather StatementDLH33 min
Jun 18, 1:24 PM CDTTornado WatchSPC8 hr
Jun 18, 4:01 PM CDTFlash Flood WarningDLH5 hr
Jun 18, 9:04 PM CDTAreal Flood WarningDLH6 days
Jun 24, 5:52 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 24, 7:21 PM CDTSpecial Weather StatementDLH24 min
Jun 24, 7:32 PM CDTSevere Thunderstorm WarningDLH43 min
Jun 24, 7:50 PM CDTSpecial Weather StatementDLH25 min
Jun 24, 7:53 PM CDTMesoscale DiscussionSPC97 min
Jun 24, 8:11 PM CDTSpecial Weather StatementDLH34 min
Jun 24, 8:25 PM CDTSevere Thunderstorm WarningDLH50 min
Jun 24, 8:52 PM CDTSevere Thunderstorm WarningDLH38 min
Jun 24, 9:12 PM CDTSevere Thunderstorm WarningDLH48 min
Jun 24, 9:39 PM CDTSevere Thunderstorm WarningDLH51 min
Jun 30, 3:07 PM CDTFlood WatchDLH43 hr
Jul 2, 2:18 AM CDTAreal Flood AdvisoryDLH6 hr
Jul 3, 3:26 PM CDTAreal Flood AdvisoryDLH13 days
Jul 13, 9:52 AM CDTSpecial Weather StatementDLH23 min
Jul 13, 5:38 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 13, 6:49 PM CDTSpecial Weather StatementDLH26 min
Jul 13, 7:16 PM CDTMesoscale DiscussionSPC89 min
Jul 13, 7:38 PM CDTSevere Thunderstorm WarningDLH52 min
Jul 13, 8:36 PM CDTSpecial Weather StatementDLH24 min
Jul 13, 8:51 PM CDTSevere Thunderstorm WarningDLH28 min
Jul 19, 3:56 PM CDTSpecial Weather StatementDLH19 min
Jul 20, 1:29 PM CDTSpecial Weather StatementDLH31 min
Jul 20, 2:01 PM CDTSpecial Weather StatementDLH29 min
Jul 27, 3:59 PM CDTSpecial Weather StatementDLH31 min
Jul 27, 4:12 PM CDTSpecial Weather StatementDLH33 min
Aug 3, 9:33 AM CDTSpecial Weather StatementDLH27 min
Aug 3, 9:48 AM CDTSevere Thunderstorm WarningDLH27 min
Aug 3, 9:53 AM CDTSpecial Weather StatementDLH37 min
Aug 3, 10:23 AM CDTSevere Thunderstorm WarningDLH52 min
Aug 3, 11:21 AM CDTSpecial Weather StatementDLH24 min
Aug 3, 11:42 AM CDTSpecial Weather StatementDLH33 min
Aug 3, 12:12 PM CDTSpecial Weather StatementDLH33 min
Aug 4, 2:52 AM CDTDense Fog AdvisoryDLH4 hr
Aug 24, 2:46 AM CDTDense Fog AdvisoryDLH7 hr
Aug 29, 7:33 AM CDTSpecial Weather StatementDLH27 min
Aug 29, 8:30 AM CDTSpecial Weather StatementDLH30 min
Aug 29, 9:06 AM CDTSpecial Weather StatementDLH24 min
Aug 29, 11:59 AM CDTFlood WatchDLH9 hr
Aug 29, 2:33 PM CDTSevere Thunderstorm WatchSPC6 hr
Sep 6, 2:33 AM CDTFrost AdvisoryDLH29 hr
Sep 16, 10:29 PM CDTSpecial Weather StatementDLH31 min
Sep 16, 11:15 PM CDTSpecial Weather StatementDLH30 min
Sep 17, 12:13 AM CDTAreal Flood AdvisoryDLH4 hr
Sep 19, 1:18 AM CDTSpecial Weather StatementDLH27 min
Sep 22, 2:44 AM CDTFrost AdvisoryDLH29 hr
Oct 3, 1:39 PM CDTFreeze WarningDLH19 hr
Oct 5, 1:58 PM CDTWind AdvisoryDLH27 hr
Oct 6, 1:54 PM CDTFrost AdvisoryDLH18 hr
Oct 7, 2:41 PM CDTFrost AdvisoryDLH17 hr
Oct 16, 2:40 PM CDTFire Weather WatchDLH11 hr
Oct 17, 1:47 AM CDTRed Flag WarningDLH17 hr
Nov 24, 2:29 AM CSTWinter Weather AdvisoryDLH40 hr
Dec 4, 2:53 AM CSTWinter Weather AdvisoryDLH27 hr
Dec 6, 2:24 AM CSTWinter Weather AdvisoryDLH36 hr
Dec 6, 1:15 PM CSTWinter Storm WatchDLH25 hr
Dec 7, 2:16 PM CSTWinter Storm WarningDLH47 hr
Dec 7, 2:16 PM CSTWinter Weather AdvisoryDLH47 hr
Dec 11, 2:24 AM CSTCold Weather AdvisoryDLH32 hr
Dec 18, 1:15 PM CSTWinter Weather AdvisoryDLH42 hr
Dec 23, 9:00 PM CSTDense Fog AdvisoryDLH12 hr
Dec 26, 1:09 PM CSTDense Fog AdvisoryDLH45 hr
Dec 28, 7:55 PM CSTDense Fog AdvisoryDLH49 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 archive20232025

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.