Alert archive / Montana / Flathead County

Weather alerts in Flathead County, Montana, 2024

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

Flathead County and its neighbors

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

Alerts
130
Warnings
19
Watches
14
Advisories
68
Busiest month
January23 alerts
Busiest day
August 23, 20248 alerts

Over time

By month

Warning verification

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

Flathead County, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings110%617%27 min
Flash flood warnings00

Each office's whole area, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Missoula, MT: severe thunderstorm warnings321941%10844%15 min
NWS Missoula, MT: flash flood warnings40100%20%

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, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 4, 11:07 AM MSTWinter Weather AdvisoryMSO25 hr
Jan 5, 1:08 PM MSTWinter Weather AdvisoryMSO49 hr
Jan 6, 1:27 PM MSTWinter Storm WatchMSO26 hr
Jan 7, 2:57 PM MSTWinter Storm WarningMSO5 days
Jan 7, 2:57 PM MSTWinter Weather AdvisoryMSO68 hr
Jan 9, 2:29 PM MSTWinter Storm WatchMSO23 hr
Jan 10, 1:13 PM MSTWind Chill WarningMSO70 hr
Jan 10, 1:13 PM MSTWinter Storm WarningMSO46 hr
Jan 10, 1:13 PM MSTWinter Weather AdvisoryMSO52 hr
Jan 12, 5:16 PM MSTWinter Weather AdvisoryMSO18 hr
Jan 13, 12:17 PM MSTWind Chill WarningMSO23 hr
Jan 15, 1:06 AM MSTWinter Storm WatchMSO13 hr
Jan 15, 2:11 PM MSTWinter Storm WarningMSO67 hr
Jan 17, 9:44 AM MSTBlizzard WarningMSO17 hr
Jan 17, 12:49 PM MSTMesoscale DiscussionSPC4 hr
Jan 20, 5:12 AM MSTWinter Weather AdvisoryMSO30 hr
Jan 20, 6:39 PM MSTWinter Storm WarningMSO16 hr
Jan 21, 12:56 PM MSTWinter Weather AdvisoryMSO22 hr
Jan 22, 7:16 AM MSTWinter Storm WarningMSO4 hr
Jan 22, 12:54 PM MSTWinter Weather AdvisoryMSO22 hr
Jan 29, 4:09 PM MSTDense Fog AdvisoryMSO19 hr
Jan 30, 5:41 AM MSTFreezing Fog AdvisoryMSO32 hr
Jan 31, 3:09 AM MSTDense Fog AdvisoryMSO8 hr
Feb 2, 3:04 AM MSTWinter Weather AdvisoryMSO62 hr
Feb 5, 1:35 PM MSTSpecial Weather StatementMSO40 min
Feb 6, 11:41 AM MSTWinter Weather AdvisoryMSO3 days
Feb 11, 12:00 PM MSTWinter Weather AdvisoryMSO65 hr
Feb 12, 12:55 PM MSTWinter Weather AdvisoryMSO43 hr
Feb 13, 1:52 PM MSTWind Chill AdvisoryMSO54 hr
Feb 13, 1:52 PM MSTWinter Weather AdvisoryMSO66 hr
Feb 23, 10:03 AM MSTWinter Storm WatchMSO27 hr
Feb 24, 12:44 PM MSTWinter Storm WarningMSO49 hr
Feb 24, 1:06 PM MSTWind AdvisoryMSO46 hr
Feb 26, 10:47 AM MSTWinter Weather AdvisoryMSO24 hr
Feb 26, 5:21 PM MSTSpecial Weather StatementMSO39 min
Feb 27, 11:56 AM MSTWinter Weather AdvisoryMSO45 hr
Feb 28, 10:17 AM MSTWind AdvisoryMSO32 hr
Feb 29, 10:03 AM MSTWinter Weather AdvisoryMSO23 hr
Mar 1, 1:52 PM MSTWinter Weather AdvisoryMSO39 hr
Mar 4, 4:45 PM MSTSpecial Weather StatementMSO30 min
Mar 20, 11:17 AM MDTWinter Storm WatchMSO26 hr
Mar 20, 11:17 AM MDTWinter Weather AdvisoryMSO4 days
Apr 5, 12:42 PM MDTWinter Weather AdvisoryMSO20 hr
Apr 14, 1:41 PM MDTLake Wind AdvisoryMSO31 hr
Apr 15, 11:33 AM MDTWinter Weather AdvisoryMSO42 hr
Apr 20, 1:06 PM MDTLake Wind AdvisoryMSO31 hr
Apr 30, 10:15 AM MDTWinter Weather AdvisoryMSO47 hr
May 6, 10:13 AM MDTLake Wind AdvisoryMSO28 hr
May 6, 12:51 PM MDTWinter Weather AdvisoryMSO46 hr
May 15, 12:02 PM MDTWind AdvisoryMSO32 hr
May 16, 10:04 AM MDTWind AdvisoryMSO34 hr
May 28, 7:26 PM MDTSpecial Weather StatementMSO34 min
May 29, 11:04 AM MDTLake Wind AdvisoryMSO10 hr
May 29, 12:48 PM MDTFrost AdvisoryMSO19 hr
May 29, 12:48 PM MDTFrost AdvisoryMSO43 hr
Jun 2, 12:20 PM MDTWind AdvisoryMSO33 hr
Jun 3, 9:21 PM MDTLake Wind AdvisoryMSO25 hr
Jun 8, 11:47 AM MDTWind AdvisoryMSO17 hr
Jun 13, 2:11 PM MDTWinter Storm WatchMSO71 hr
Jun 14, 10:21 AM MDTLake Wind AdvisoryMSO36 hr
Jun 16, 1:07 PM MDTWinter Weather AdvisoryMSO44 hr
Jun 30, 4:42 PM MDTSpecial Weather StatementMSO63 min
Jun 30, 7:58 PM MDTSpecial Weather StatementMSO47 min
Jul 1, 4:08 PM MDTSpecial Weather StatementMSO52 min
Jul 2, 1:09 PM MDTExcessive Heat WatchMSO70 hr
Jul 5, 10:49 AM MDTHeat AdvisoryMSO6 days
Jul 18, 11:50 AM MDTExcessive Heat WarningMSO5 days
Jul 18, 11:50 AM MDTHeat AdvisoryMSO7 days
Jul 22, 1:26 PM MDTFire Weather WatchMSO25 hr
Jul 23, 2:18 PM MDTRed Flag WarningMSO31 hr
Jul 24, 1:27 PM MDTRed Flag WarningMSO32 hr
Jul 31, 12:46 PM MDTHeat AdvisoryMSO3 days
Aug 6, 4:14 PM MDTSpecial Weather StatementMSO46 min
Aug 6, 5:01 PM MDTSevere Thunderstorm WatchSPC6 hr
Aug 7, 11:32 AM MDTLake Wind AdvisoryMSO33 hr
Aug 12, 4:32 PM MDTSpecial Weather StatementMSO28 min
Aug 12, 5:19 PM MDTSpecial Weather StatementMSO11 min
Aug 12, 5:28 PM MDTSpecial Weather StatementMSO17 min
Aug 19, 2:21 PM MDTMesoscale DiscussionSPC84 min
Aug 19, 2:48 PM MDTSevere Thunderstorm WatchSPC7 hr
Aug 19, 6:05 PM MDTMesoscale DiscussionSPC115 min
Aug 19, 6:54 PM MDTSpecial Weather StatementMSO36 min
Aug 19, 7:42 PM MDTSpecial Weather StatementMSO48 min
Aug 23, 2:13 PM MDTMesoscale DiscussionSPC2 hr
Aug 23, 2:54 PM MDTSevere Thunderstorm WatchSPC6 hr
Aug 23, 4:07 PM MDTSpecial Weather StatementMSO68 min
Aug 23, 5:02 PM MDTSpecial Weather StatementMSO28 min
Aug 23, 5:04 PM MDTMesoscale DiscussionSPC116 min
Aug 23, 5:13 PM MDTSevere Thunderstorm WarningMSO32 min
Aug 23, 5:44 PM MDTSpecial Weather StatementMSO31 min
Aug 23, 5:53 PM MDTSpecial Weather StatementMSO37 min
Aug 23, 6:17 PM MDTSpecial Weather StatementMSO28 min
Aug 23, 6:42 PM MDTSpecial Weather StatementMSO33 min
Aug 27, 9:01 AM MDTWinter Weather AdvisoryMSO47 hr
Aug 28, 10:59 AM MDTLake Wind AdvisoryMSO10 hr
Sep 10, 1:12 PM MDTWinter Weather AdvisoryMSO65 hr
Sep 17, 6:57 PM MDTSpecial Weather StatementMSO48 min
Sep 20, 9:52 AM MDTFrost AdvisoryMSO23 hr
Sep 20, 9:52 AM MDTFrost AdvisoryMSO47 hr
Sep 24, 2:01 PM MDTWind AdvisoryMSO33 hr
Sep 25, 5:26 PM MDTSpecial Weather StatementMSO34 min
Sep 25, 5:54 PM MDTSpecial Weather StatementMSO36 min
Sep 25, 6:50 PM MDTSpecial Weather StatementMSO40 min
Sep 25, 8:21 PM MDTSpecial Weather StatementMSO24 min
Sep 28, 10:13 AM MDTLake Wind AdvisoryMSO35 hr
Sep 28, 1:44 PM MDTFreeze WatchMSO21 hr
Sep 29, 10:52 AM MDTFreeze WarningMSO46 hr
Oct 1, 10:04 AM MDTLake Wind AdvisoryMSO31 hr
Oct 2, 12:48 PM MDTHigh Wind WatchMSO24 hr
Oct 3, 1:00 PM MDTHigh Wind WarningMSO37 hr
Oct 3, 1:03 PM MDTWind AdvisoryMSO34 hr
Oct 18, 7:45 AM MDTDense Fog AdvisoryMSO3 hr
Oct 27, 1:09 AM MDTLake Wind AdvisoryMSO19 hr
Nov 2, 1:51 PM MDTWinter Storm WatchMSO26 hr
Nov 3, 2:29 PM MSTWinter Storm WarningMSO42 hr
Nov 3, 2:29 PM MSTWinter Weather AdvisoryMSO42 hr
Nov 15, 1:01 PM MSTWinter Weather AdvisoryMSO70 hr
Nov 19, 11:43 AM MSTWinter Weather AdvisoryMSO47 hr
Nov 20, 6:42 PM MSTWinter Weather AdvisoryMSO16 hr
Nov 22, 9:29 AM MSTWinter Weather AdvisoryMSO49 hr
Dec 6, 11:09 AM MSTWinter Storm WarningMSO36 hr
Dec 6, 11:09 AM MSTWinter Weather AdvisoryMSO45 hr
Dec 15, 1:45 PM MSTWinter Weather AdvisoryMSO43 hr
Dec 17, 10:15 AM MSTWinter Storm WarningMSO27 hr
Dec 17, 10:15 AM MSTWinter Weather AdvisoryMSO25 hr
Dec 17, 10:55 AM MSTHigh Wind WarningMSO34 hr
Dec 17, 10:55 AM MSTWind AdvisoryMSO31 hr
Dec 18, 1:11 PM MSTWinter Weather AdvisoryMSO5 hr
Dec 24, 2:00 PM MSTWinter Weather AdvisoryMSO48 hr
Dec 28, 2:19 PM MSTWinter Weather AdvisoryMSO63 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.