Alert archive / Montana / Lake County
Weather alerts in Lake County, Montana, 2013
117 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Lake County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 117
- Warnings
- 21
- Watches
- 12
- Advisories
- 58
- Busiest month
- December15 alerts
- Busiest day
- June 18, 20134 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Lake County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 6 | 3 | 50% | 3 | 67% | 3 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Missoula, MT: tornado warnings | 0 | 1 | 0% | |||
| NWS Missoula, MT: severe thunderstorm warnings | 35 | 16 | 54% | 51 | 59% | 17 min |
| NWS Missoula, MT: flash flood warnings | 8 | 0 | 100% | 4 | 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, 11:08 AM MST | Winter Weather Advisory | MSO | 7 hr |
| Jan 4, 5:57 PM MST | Winter Weather Advisory | MSO | 3 hr |
| Jan 5, 2:40 PM MST | Winter Weather Advisory | MSO | 20 hr |
| Jan 6, 1:59 PM MST | Winter Weather Advisory | MSO | 39 hr |
| Jan 9, 11:43 AM MST | Winter Weather Advisory | MSO | 49 hr |
| Jan 13, 2:57 PM MST | Winter Weather Advisory | MSO | 29 hr |
| Jan 17, 7:25 AM MST | Dense Fog Advisory | MSO | 4 hr |
| Jan 17, 2:08 PM MST | Dense Fog Advisory | MSO | 22 hr |
| Jan 22, 7:10 AM MST | Dense Fog Advisory | MSO | 5 hr |
| Jan 23, 7:21 PM MST | Winter Weather Advisory | MSO | 14 hr |
| Jan 25, 2:17 PM MST | Winter Weather Advisory | MSO | 45 hr |
| Jan 28, 3:25 AM MST | Winter Weather Advisory | MSO | 62 hr |
| Feb 9, 1:19 PM MST | Winter Weather Advisory | MSO | 22 hr |
| Feb 11, 1:32 PM MST | Winter Weather Advisory | MSO | 45 hr |
| Feb 15, 12:21 PM MST | Winter Weather Advisory | MSO | 63 hr |
| Feb 22, 4:10 AM MST | Winter Weather Advisory | MSO | 40 hr |
| Mar 1, 11:06 AM MST | Winter Weather Advisory | MSO | 46 hr |
| Mar 7, 3:00 AM MST | Winter Weather Advisory | MSO | 8 hr |
| Mar 10, 2:35 PM MDT | Winter Weather Advisory | MSO | 21 hr |
| Mar 15, 2:15 PM MDT | Winter Weather Advisory | MSO | 4 days |
| Mar 17, 11:51 AM MDT | Lake Wind Advisory | MSO | 8 hr |
| Mar 19, 2:08 PM MDT | Winter Weather Advisory | MSO | 34 hr |
| Mar 20, 5:34 PM MDT | Special Weather Statement | MSO | 56 min |
| Mar 20, 11:56 PM MDT | Winter Weather Advisory | MSO | 18 hr |
| Mar 22, 8:41 PM MDT | Winter Weather Advisory | MSO | 15 hr |
| Apr 6, 2:06 PM MDT | Winter Weather Advisory | MSO | 46 hr |
| Apr 12, 9:35 AM MDT | Lake Wind Advisory | MSO | 35 hr |
| Apr 12, 10:33 AM MDT | Winter Weather Advisory | MSO | 25 hr |
| Apr 13, 2:11 PM MDT | Winter Weather Advisory | MSO | 22 hr |
| Apr 15, 9:24 AM MDT | Freeze Warning | MSO | 48 hr |
| Apr 18, 2:30 PM MDT | Winter Weather Advisory | MSO | 18 hr |
| Apr 20, 3:31 AM MDT | Winter Weather Advisory | MSO | 53 hr |
| Apr 26, 1:51 PM MDT | Lake Wind Advisory | MSO | 31 hr |
| Apr 28, 10:21 AM MDT | High Wind Warning | MSO | 35 hr |
| Apr 30, 4:21 AM MDT | Freeze Warning | MSO | 28 hr |
| May 1, 12:01 PM MDT | Freeze Warning | MSO | 21 hr |
| May 13, 4:13 AM MDT | Lake Wind Advisory | MSO | 17 hr |
| May 13, 2:57 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 13, 4:46 PM MDT | Severe Thunderstorm Warning | MSO | 44 min |
| May 13, 6:18 PM MDT | Mesoscale Discussion | SPC | 87 min |
| May 21, 4:31 PM MDT | Special Weather Statement | MSO | 44 min |
| May 22, 3:57 PM MDT | Areal Flood Advisory | MSO | 6 hr |
| May 23, 9:43 AM MDT | Winter Storm Warning | MSO | 19 hr |
| May 23, 11:56 AM MDT | Winter Weather Advisory | MSO | 16 hr |
| Jun 7, 3:41 AM MDT | Lake Wind Advisory | MSO | 17 hr |
| Jun 18, 1:55 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 18, 2:37 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 18, 5:20 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Jun 18, 5:39 PM MDT | Special Weather Statement | MSO | 51 min |
| Jun 18, 8:21 PM MDT | Mesoscale Discussion | SPC | 54 min |
| Jun 24, 3:04 PM MDT | Special Weather Statement | MSO | 41 min |
| Jun 28, 1:26 PM MDT | Heat Advisory | MSO | 4 days |
| Jul 5, 7:46 PM MDT | Special Weather Statement | MSO | 44 min |
| Jul 8, 1:56 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Jul 8, 3:20 PM MDT | Special Weather Statement | MSO | 40 min |
| Jul 8, 3:33 PM MDT | Severe Thunderstorm Warning | MSO | 27 min |
| Jul 17, 2:22 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jul 17, 2:48 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 17, 3:06 PM MDT | Special Weather Statement | MSO | 24 min |
| Jul 17, 3:26 PM MDT | Severe Thunderstorm Warning | MSO | 49 min |
| Jul 25, 1:53 PM MDT | Fire Weather Watch | MSO | 21 hr |
| Jul 26, 11:08 AM MDT | Red Flag Warning | MSO | 34 hr |
| Aug 5, 1:12 PM MDT | Special Weather Statement | MSO | 48 min |
| Aug 5, 1:43 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 9, 9:04 PM MDT | Special Weather Statement | MSO | 41 min |
| Aug 9, 9:11 PM MDT | Severe Thunderstorm Warning | MSO | 49 min |
| Aug 9, 9:36 PM MDT | Severe Thunderstorm Warning | MSO | 39 min |
| Aug 17, 6:22 PM MDT | Special Weather Statement | MSO | 38 min |
| Aug 21, 2:48 PM MDT | Fire Weather Watch | MSO | 19 hr |
| Aug 22, 5:07 AM MDT | Red Flag Warning | MSO | 33 hr |
| Aug 25, 6:06 PM MDT | Special Weather Statement | MSO | 39 min |
| Aug 29, 2:34 PM MDT | Mesoscale Discussion | SPC | 56 min |
| Aug 29, 3:39 PM MDT | Special Weather Statement | MSO | 81 min |
| Aug 29, 4:23 PM MDT | Severe Thunderstorm Warning | MSO | 37 min |
| Aug 29, 5:05 PM MDT | Special Weather Statement | MSO | 55 min |
| Aug 29, 6:02 PM MDT | Special Weather Statement | MSO | 73 min |
| Sep 5, 7:05 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 5, 8:13 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 5, 10:20 PM MDT | Special Weather Statement | MSO | 40 min |
| Sep 5, 10:44 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 8, 12:29 PM MDT | Special Weather Statement | MSO | 46 min |
| Sep 17, 11:22 AM MDT | Winter Weather Advisory | MSO | 37 hr |
| Sep 24, 11:50 AM MDT | Winter Storm Warning | MSO | 48 hr |
| Sep 28, 2:27 PM MDT | Wind Advisory | MSO | 21 hr |
| Sep 29, 1:53 PM MDT | Wind Advisory | MSO | 28 hr |
| Sep 29, 1:54 PM MDT | Winter Weather Advisory | MSO | 21 hr |
| Oct 22, 7:11 AM MDT | Dense Fog Advisory | MSO | 4 hr |
| Oct 25, 12:34 PM MDT | Winter Storm Watch | MSO | 40 hr |
| Oct 25, 12:40 PM MDT | High Wind Watch | MSO | 25 hr |
| Oct 26, 1:54 PM MDT | Winter Storm Warning | MSO | 67 hr |
| Oct 26, 1:56 PM MDT | High Wind Warning | MSO | 46 hr |
| Oct 28, 11:54 AM MDT | Wind Chill Advisory | MSO | 21 hr |
| Nov 2, 3:18 AM MDT | Winter Weather Advisory | MSO | 57 hr |
| Nov 5, 10:55 PM MST | Winter Weather Advisory | MSO | 11 hr |
| Nov 6, 12:55 PM MST | Winter Weather Advisory | MSO | 45 hr |
| Nov 9, 3:46 AM MST | Winter Weather Advisory | MSO | 53 hr |
| Nov 13, 2:23 PM MST | Winter Storm Watch | MSO | 45 hr |
| Nov 14, 3:09 PM MST | Winter Storm Warning | MSO | 60 hr |
| Nov 14, 3:09 PM MST | Winter Weather Advisory | MSO | 4 days |
| Nov 15, 7:47 AM MST | Lake Wind Advisory | MSO | 13 hr |
| Nov 29, 2:38 PM MST | Winter Storm Watch | MSO | 48 hr |
| Nov 30, 3:03 PM MST | Winter Storm Warning | MSO | 68 hr |
| Nov 30, 11:48 PM MST | Winter Weather Advisory | MSO | 15 hr |
| Dec 3, 11:13 AM MST | Wind Chill Advisory | MSO | 24 hr |
| Dec 4, 2:12 PM MST | Wind Chill Watch | MSO | 14 hr |
| Dec 5, 4:35 AM MST | Wind Chill Warning | MSO | 60 hr |
| Dec 5, 12:07 PM MST | Lake Effect Snow Advisory | MSO | 20 hr |
| Dec 8, 1:58 PM MST | Winter Weather Advisory | MSO | 51 hr |
| Dec 14, 5:15 PM MST | Freezing Rain Advisory | MSO | 16 hr |
| Dec 16, 2:06 PM MST | Winter Storm Watch | MSO | 48 hr |
| Dec 17, 12:24 PM MST | Winter Weather Advisory | MSO | 47 hr |
| Dec 18, 10:24 AM MST | Winter Storm Warning | MSO | 18 hr |
| Dec 19, 10:59 AM MST | Winter Storm Warning | MSO | 48 hr |
| Dec 19, 10:59 AM MST | Winter Weather Advisory | MSO | 48 hr |
| Dec 22, 1:59 PM MST | Winter Weather Advisory | MSO | 39 hr |
| Dec 27, 2:40 PM MST | Winter Weather Advisory | MSO | 20 hr |
| Dec 30, 1:51 PM MST | Winter Weather Advisory | MSO | 33 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 archive20122014
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.