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
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 1 | 1 | 0% | 6 | 17% | 27 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Missoula, MT: severe thunderstorm warnings | 32 | 19 | 41% | 108 | 44% | 15 min |
| NWS Missoula, MT: flash flood warnings | 4 | 0 | 100% | 2 | 0% |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 4, 11:07 AM MST | Winter Weather Advisory | MSO | 25 hr |
| Jan 5, 1:08 PM MST | Winter Weather Advisory | MSO | 49 hr |
| Jan 6, 1:27 PM MST | Winter Storm Watch | MSO | 26 hr |
| Jan 7, 2:57 PM MST | Winter Storm Warning | MSO | 5 days |
| Jan 7, 2:57 PM MST | Winter Weather Advisory | MSO | 68 hr |
| Jan 9, 2:29 PM MST | Winter Storm Watch | MSO | 23 hr |
| Jan 10, 1:13 PM MST | Wind Chill Warning | MSO | 70 hr |
| Jan 10, 1:13 PM MST | Winter Storm Warning | MSO | 46 hr |
| Jan 10, 1:13 PM MST | Winter Weather Advisory | MSO | 52 hr |
| Jan 12, 5:16 PM MST | Winter Weather Advisory | MSO | 18 hr |
| Jan 13, 12:17 PM MST | Wind Chill Warning | MSO | 23 hr |
| Jan 15, 1:06 AM MST | Winter Storm Watch | MSO | 13 hr |
| Jan 15, 2:11 PM MST | Winter Storm Warning | MSO | 67 hr |
| Jan 17, 9:44 AM MST | Blizzard Warning | MSO | 17 hr |
| Jan 17, 12:49 PM MST | Mesoscale Discussion | SPC | 4 hr |
| Jan 20, 5:12 AM MST | Winter Weather Advisory | MSO | 30 hr |
| Jan 20, 6:39 PM MST | Winter Storm Warning | MSO | 16 hr |
| Jan 21, 12:56 PM MST | Winter Weather Advisory | MSO | 22 hr |
| Jan 22, 7:16 AM MST | Winter Storm Warning | MSO | 4 hr |
| Jan 22, 12:54 PM MST | Winter Weather Advisory | MSO | 22 hr |
| Jan 29, 4:09 PM MST | Dense Fog Advisory | MSO | 19 hr |
| Jan 30, 5:41 AM MST | Freezing Fog Advisory | MSO | 32 hr |
| Jan 31, 3:09 AM MST | Dense Fog Advisory | MSO | 8 hr |
| Feb 2, 3:04 AM MST | Winter Weather Advisory | MSO | 62 hr |
| Feb 5, 1:35 PM MST | Special Weather Statement | MSO | 40 min |
| Feb 6, 11:41 AM MST | Winter Weather Advisory | MSO | 3 days |
| Feb 11, 12:00 PM MST | Winter Weather Advisory | MSO | 65 hr |
| Feb 12, 12:55 PM MST | Winter Weather Advisory | MSO | 43 hr |
| Feb 13, 1:52 PM MST | Wind Chill Advisory | MSO | 54 hr |
| Feb 13, 1:52 PM MST | Winter Weather Advisory | MSO | 66 hr |
| Feb 23, 10:03 AM MST | Winter Storm Watch | MSO | 27 hr |
| Feb 24, 12:44 PM MST | Winter Storm Warning | MSO | 49 hr |
| Feb 24, 1:06 PM MST | Wind Advisory | MSO | 46 hr |
| Feb 26, 10:47 AM MST | Winter Weather Advisory | MSO | 24 hr |
| Feb 26, 5:21 PM MST | Special Weather Statement | MSO | 39 min |
| Feb 27, 11:56 AM MST | Winter Weather Advisory | MSO | 45 hr |
| Feb 28, 10:17 AM MST | Wind Advisory | MSO | 32 hr |
| Feb 29, 10:03 AM MST | Winter Weather Advisory | MSO | 23 hr |
| Mar 1, 1:52 PM MST | Winter Weather Advisory | MSO | 39 hr |
| Mar 4, 4:45 PM MST | Special Weather Statement | MSO | 30 min |
| Mar 20, 11:17 AM MDT | Winter Storm Watch | MSO | 26 hr |
| Mar 20, 11:17 AM MDT | Winter Weather Advisory | MSO | 4 days |
| Apr 5, 12:42 PM MDT | Winter Weather Advisory | MSO | 20 hr |
| Apr 14, 1:41 PM MDT | Lake Wind Advisory | MSO | 31 hr |
| Apr 15, 11:33 AM MDT | Winter Weather Advisory | MSO | 42 hr |
| Apr 20, 1:06 PM MDT | Lake Wind Advisory | MSO | 31 hr |
| Apr 30, 10:15 AM MDT | Winter Weather Advisory | MSO | 47 hr |
| May 6, 10:13 AM MDT | Lake Wind Advisory | MSO | 28 hr |
| May 6, 12:51 PM MDT | Winter Weather Advisory | MSO | 46 hr |
| May 15, 12:02 PM MDT | Wind Advisory | MSO | 32 hr |
| May 16, 10:04 AM MDT | Wind Advisory | MSO | 34 hr |
| May 28, 7:26 PM MDT | Special Weather Statement | MSO | 34 min |
| May 29, 11:04 AM MDT | Lake Wind Advisory | MSO | 10 hr |
| May 29, 12:48 PM MDT | Frost Advisory | MSO | 19 hr |
| May 29, 12:48 PM MDT | Frost Advisory | MSO | 43 hr |
| Jun 2, 12:20 PM MDT | Wind Advisory | MSO | 33 hr |
| Jun 3, 9:21 PM MDT | Lake Wind Advisory | MSO | 25 hr |
| Jun 8, 11:47 AM MDT | Wind Advisory | MSO | 17 hr |
| Jun 13, 2:11 PM MDT | Winter Storm Watch | MSO | 71 hr |
| Jun 14, 10:21 AM MDT | Lake Wind Advisory | MSO | 36 hr |
| Jun 16, 1:07 PM MDT | Winter Weather Advisory | MSO | 44 hr |
| Jun 30, 4:42 PM MDT | Special Weather Statement | MSO | 63 min |
| Jun 30, 7:58 PM MDT | Special Weather Statement | MSO | 47 min |
| Jul 1, 4:08 PM MDT | Special Weather Statement | MSO | 52 min |
| Jul 2, 1:09 PM MDT | Excessive Heat Watch | MSO | 70 hr |
| Jul 5, 10:49 AM MDT | Heat Advisory | MSO | 6 days |
| Jul 18, 11:50 AM MDT | Excessive Heat Warning | MSO | 5 days |
| Jul 18, 11:50 AM MDT | Heat Advisory | MSO | 7 days |
| Jul 22, 1:26 PM MDT | Fire Weather Watch | MSO | 25 hr |
| Jul 23, 2:18 PM MDT | Red Flag Warning | MSO | 31 hr |
| Jul 24, 1:27 PM MDT | Red Flag Warning | MSO | 32 hr |
| Jul 31, 12:46 PM MDT | Heat Advisory | MSO | 3 days |
| Aug 6, 4:14 PM MDT | Special Weather Statement | MSO | 46 min |
| Aug 6, 5:01 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 7, 11:32 AM MDT | Lake Wind Advisory | MSO | 33 hr |
| Aug 12, 4:32 PM MDT | Special Weather Statement | MSO | 28 min |
| Aug 12, 5:19 PM MDT | Special Weather Statement | MSO | 11 min |
| Aug 12, 5:28 PM MDT | Special Weather Statement | MSO | 17 min |
| Aug 19, 2:21 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Aug 19, 2:48 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 19, 6:05 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Aug 19, 6:54 PM MDT | Special Weather Statement | MSO | 36 min |
| Aug 19, 7:42 PM MDT | Special Weather Statement | MSO | 48 min |
| Aug 23, 2:13 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 23, 2:54 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 23, 4:07 PM MDT | Special Weather Statement | MSO | 68 min |
| Aug 23, 5:02 PM MDT | Special Weather Statement | MSO | 28 min |
| Aug 23, 5:04 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Aug 23, 5:13 PM MDT | Severe Thunderstorm Warning | MSO | 32 min |
| Aug 23, 5:44 PM MDT | Special Weather Statement | MSO | 31 min |
| Aug 23, 5:53 PM MDT | Special Weather Statement | MSO | 37 min |
| Aug 23, 6:17 PM MDT | Special Weather Statement | MSO | 28 min |
| Aug 23, 6:42 PM MDT | Special Weather Statement | MSO | 33 min |
| Aug 27, 9:01 AM MDT | Winter Weather Advisory | MSO | 47 hr |
| Aug 28, 10:59 AM MDT | Lake Wind Advisory | MSO | 10 hr |
| Sep 10, 1:12 PM MDT | Winter Weather Advisory | MSO | 65 hr |
| Sep 17, 6:57 PM MDT | Special Weather Statement | MSO | 48 min |
| Sep 20, 9:52 AM MDT | Frost Advisory | MSO | 23 hr |
| Sep 20, 9:52 AM MDT | Frost Advisory | MSO | 47 hr |
| Sep 24, 2:01 PM MDT | Wind Advisory | MSO | 33 hr |
| Sep 25, 5:26 PM MDT | Special Weather Statement | MSO | 34 min |
| Sep 25, 5:54 PM MDT | Special Weather Statement | MSO | 36 min |
| Sep 25, 6:50 PM MDT | Special Weather Statement | MSO | 40 min |
| Sep 25, 8:21 PM MDT | Special Weather Statement | MSO | 24 min |
| Sep 28, 10:13 AM MDT | Lake Wind Advisory | MSO | 35 hr |
| Sep 28, 1:44 PM MDT | Freeze Watch | MSO | 21 hr |
| Sep 29, 10:52 AM MDT | Freeze Warning | MSO | 46 hr |
| Oct 1, 10:04 AM MDT | Lake Wind Advisory | MSO | 31 hr |
| Oct 2, 12:48 PM MDT | High Wind Watch | MSO | 24 hr |
| Oct 3, 1:00 PM MDT | High Wind Warning | MSO | 37 hr |
| Oct 3, 1:03 PM MDT | Wind Advisory | MSO | 34 hr |
| Oct 18, 7:45 AM MDT | Dense Fog Advisory | MSO | 3 hr |
| Oct 27, 1:09 AM MDT | Lake Wind Advisory | MSO | 19 hr |
| Nov 2, 1:51 PM MDT | Winter Storm Watch | MSO | 26 hr |
| Nov 3, 2:29 PM MST | Winter Storm Warning | MSO | 42 hr |
| Nov 3, 2:29 PM MST | Winter Weather Advisory | MSO | 42 hr |
| Nov 15, 1:01 PM MST | Winter Weather Advisory | MSO | 70 hr |
| Nov 19, 11:43 AM MST | Winter Weather Advisory | MSO | 47 hr |
| Nov 20, 6:42 PM MST | Winter Weather Advisory | MSO | 16 hr |
| Nov 22, 9:29 AM MST | Winter Weather Advisory | MSO | 49 hr |
| Dec 6, 11:09 AM MST | Winter Storm Warning | MSO | 36 hr |
| Dec 6, 11:09 AM MST | Winter Weather Advisory | MSO | 45 hr |
| Dec 15, 1:45 PM MST | Winter Weather Advisory | MSO | 43 hr |
| Dec 17, 10:15 AM MST | Winter Storm Warning | MSO | 27 hr |
| Dec 17, 10:15 AM MST | Winter Weather Advisory | MSO | 25 hr |
| Dec 17, 10:55 AM MST | High Wind Warning | MSO | 34 hr |
| Dec 17, 10:55 AM MST | Wind Advisory | MSO | 31 hr |
| Dec 18, 1:11 PM MST | Winter Weather Advisory | MSO | 5 hr |
| Dec 24, 2:00 PM MST | Winter Weather Advisory | MSO | 48 hr |
| Dec 28, 2:19 PM MST | Winter Weather Advisory | MSO | 63 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.