Alert archive / Montana / Granite County
Weather alerts in Granite County, Montana, 2014
134 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Granite County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 134
- Warnings
- 24
- Watches
- 18
- Advisories
- 76
- Busiest month
- February31 alerts
- Busiest day
- July 15, 20145 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Granite County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 2 | 1 | 50% | 1 | 100% | 11 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Missoula, MT: severe thunderstorm warnings | 10 | 4 | 60% | 18 | 22% | 13 min |
| NWS Missoula, MT: flash flood warnings | 8 | 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 1, 1:42 PM MST | Wind Advisory | MSO | 45 hr |
| Jan 2, 2:37 PM MST | Winter Weather Advisory | MSO | 50 hr |
| Jan 3, 10:52 PM MST | Winter Weather Advisory | MSO | 12 hr |
| Jan 5, 1:33 AM MST | Wind Chill Advisory | MSO | 12 hr |
| Jan 7, 1:54 PM MST | Winter Weather Advisory | MSO | 21 hr |
| Jan 8, 1:33 PM MST | High Wind Watch | MSO | 68 hr |
| Jan 8, 1:33 PM MST | Winter Weather Advisory | MSO | 21 hr |
| Jan 10, 3:17 AM MST | Winter Weather Advisory | MSO | 9 hr |
| Jan 10, 12:09 PM MST | High Wind Warning | MSO | 34 hr |
| Jan 10, 12:18 PM MST | Winter Storm Warning | MSO | 3 days |
| Jan 11, 9:16 PM MST | Winter Weather Advisory | MSO | 42 hr |
| Jan 12, 11:06 AM MST | Wind Advisory | MSO | 28 hr |
| Jan 13, 7:23 AM MST | High Wind Warning | MSO | 8 hr |
| Jan 25, 3:08 AM MST | Winter Weather Advisory | MSO | 38 hr |
| Jan 27, 2:18 PM MST | Winter Storm Watch | MSO | 25 hr |
| Jan 28, 4:13 AM MST | Winter Storm Warning | MSO | 3 days |
| Jan 28, 4:13 AM MST | Winter Weather Advisory | MSO | 4 days |
| Feb 2, 11:06 AM MST | Winter Weather Advisory | MSO | 48 hr |
| Feb 3, 2:23 PM MST | Wind Chill Warning | MSO | 63 hr |
| Feb 6, 7:33 AM MST | Extreme Cold Warning | MSO | 3 hr |
| Feb 6, 2:08 PM MST | Winter Weather Advisory | MSO | 23 hr |
| Feb 7, 1:36 PM MST | Winter Weather Advisory | MSO | 48 hr |
| Feb 10, 4:03 AM MST | Winter Weather Advisory | MSO | 34 hr |
| Feb 10, 2:36 PM MST | Winter Storm Watch | MSO | 24 hr |
| Feb 11, 2:27 PM MST | Winter Storm Warning | MSO | 48 hr |
| Feb 11, 2:27 PM MST | Winter Weather Advisory | MSO | 51 hr |
| Feb 11, 2:28 PM MST | Wind Advisory | MSO | 27 hr |
| Feb 13, 2:32 AM MST | Freezing Rain Advisory | MSO | 6 hr |
| Feb 13, 2:38 AM MST | Wind Advisory | MSO | 6 hr |
| Feb 14, 2:46 AM MST | Winter Weather Advisory | MSO | 26 hr |
| Feb 15, 1:03 PM MST | Winter Weather Advisory | MSO | 68 hr |
| Feb 16, 4:11 AM MST | Winter Weather Advisory | MSO | 53 hr |
| Feb 16, 1:51 PM MST | Wind Advisory | MSO | 6 hr |
| Feb 16, 2:07 PM MST | Winter Weather Advisory | MSO | 43 hr |
| Feb 18, 1:51 PM MST | Winter Weather Advisory | MSO | 19 hr |
| Feb 19, 2:41 PM MST | Winter Weather Advisory | MSO | 48 hr |
| Feb 19, 6:57 PM MST | Winter Weather Advisory | MSO | 5 hr |
| Feb 21, 4:47 AM MST | Winter Storm Warning | MSO | 6 hr |
| Feb 21, 3:03 PM MST | Winter Storm Watch | MSO | 24 hr |
| Feb 22, 2:54 PM MST | Winter Storm Warning | MSO | 44 hr |
| Feb 22, 2:54 PM MST | Winter Weather Advisory | MSO | 65 hr |
| Feb 24, 6:36 PM MST | Winter Storm Warning | MSO | 10 hr |
| Feb 26, 2:57 PM MST | Blizzard Watch | MSO | 24 hr |
| Feb 26, 8:46 PM MST | Winter Storm Watch | MSO | 23 hr |
| Feb 27, 12:44 PM MST | Freezing Rain Advisory | MSO | 7 hr |
| Feb 27, 2:56 PM MST | Blizzard Warning | MSO | 44 hr |
| Feb 27, 2:56 PM MST | Winter Storm Warning | MSO | 48 hr |
| Feb 27, 7:50 PM MST | Winter Weather Advisory | MSO | 42 hr |
| Mar 1, 4:51 AM MST | Wind Chill Warning | MSO | 27 hr |
| Mar 1, 10:59 AM MST | Wind Chill Warning | MSO | 21 hr |
| Mar 1, 1:52 PM MST | Winter Weather Advisory | MSO | 43 hr |
| Mar 3, 2:01 PM MST | Winter Weather Advisory | MSO | 20 hr |
| Mar 4, 2:08 PM MST | Winter Weather Advisory | MSO | 69 hr |
| Mar 5, 2:35 AM MST | Areal Flood Advisory | MSO | 55 hr |
| Mar 9, 11:27 AM MDT | Winter Weather Advisory | MSO | 45 hr |
| Mar 13, 2:04 PM MDT | Winter Weather Advisory | MSO | 43 hr |
| Mar 16, 3:20 AM MDT | Winter Weather Advisory | MSO | 45 hr |
| Mar 20, 2:19 AM MDT | Winter Weather Advisory | MSO | 34 hr |
| Mar 23, 7:05 AM MDT | Winter Weather Advisory | MSO | 3 hr |
| Mar 27, 7:21 AM MDT | Winter Weather Advisory | MSO | 6 hr |
| Mar 27, 1:30 PM MDT | Winter Weather Advisory | MSO | 23 hr |
| Mar 28, 2:11 PM MDT | Winter Weather Advisory | MSO | 34 hr |
| Apr 5, 8:17 PM MDT | Winter Weather Advisory | MSO | 16 hr |
| Apr 22, 9:47 AM MDT | Wind Advisory | MSO | 8 hr |
| Apr 22, 9:14 PM MDT | Winter Weather Advisory | MSO | 12 hr |
| Apr 25, 9:22 AM MDT | Winter Weather Advisory | MSO | 25 hr |
| Apr 28, 3:19 AM MDT | Winter Weather Advisory | MSO | 6 hr |
| May 9, 2:25 PM MDT | Winter Weather Advisory | MSO | 22 hr |
| May 10, 2:08 PM MDT | Winter Weather Advisory | MSO | 22 hr |
| May 27, 6:12 PM MDT | Mesoscale Discussion | SPC | 48 min |
| Jun 16, 2:46 PM MDT | Winter Weather Advisory | MSO | 21 hr |
| Jun 20, 2:24 PM MDT | Mesoscale Discussion | SPC | 66 min |
| Jun 27, 9:18 AM MDT | Flash Flood Watch | MSO | 7 hr |
| Jul 14, 1:27 PM MDT | Mesoscale Discussion | SPC | 93 min |
| Jul 14, 2:05 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 14, 5:42 PM MDT | Mesoscale Discussion | SPC | 63 min |
| Jul 14, 6:55 PM MDT | Special Weather Statement | MSO | 50 min |
| Jul 14, 8:16 PM MDT | Mesoscale Discussion | SPC | 59 min |
| Jul 14, 10:39 PM MDT | Special Weather Statement | MSO | 51 min |
| Jul 15, 2:37 PM MDT | Areal Flood Advisory | MSO | 113 min |
| Jul 15, 2:53 PM MDT | Special Weather Statement | MSO | 37 min |
| Jul 22, 2:49 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Jul 23, 4:09 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 23, 6:58 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Jul 23, 7:43 PM MDT | Severe Thunderstorm Warning | MSO | 29 min |
| Jul 23, 8:11 PM MDT | Severe Thunderstorm Warning | MSO | 23 min |
| Aug 4, 2:58 PM MDT | Special Weather Statement | MSO | 32 min |
| Aug 4, 3:35 PM MDT | Special Weather Statement | MSO | 25 min |
| Aug 4, 4:06 PM MDT | Special Weather Statement | MSO | 24 min |
| Aug 11, 3:51 AM MDT | Fire Weather Watch | MSO | 24 hr |
| Aug 12, 3:53 AM MDT | Red Flag Warning | MSO | 20 hr |
| Aug 13, 3:48 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Aug 13, 4:40 PM MDT | Areal Flood Advisory | MSO | 65 min |
| Aug 14, 12:47 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Aug 14, 1:06 PM MDT | Flash Flood Watch | MSO | 8 hr |
| Aug 21, 5:29 PM MDT | Special Weather Statement | MSO | 46 min |
| Aug 21, 5:40 PM MDT | Areal Flood Advisory | MSO | 2 hr |
| Aug 21, 6:17 PM MDT | Areal Flood Advisory | MSO | 118 min |
| Aug 21, 6:25 PM MDT | Flash Flood Warning | MSO | 2 hr |
| Aug 22, 4:09 AM MDT | Flood Watch | MSO | 24 hr |
| Aug 22, 12:11 PM MDT | Winter Weather Advisory | MSO | 24 hr |
| Sep 8, 2:14 PM MDT | Winter Weather Advisory | MSO | 68 hr |
| Sep 10, 10:46 AM MDT | Freeze Warning | MSO | 46 hr |
| Oct 10, 9:43 AM MDT | Wind Advisory | MSO | 34 hr |
| Oct 15, 10:02 AM MDT | Wind Advisory | MSO | 11 hr |
| Oct 20, 11:40 AM MDT | Winter Weather Advisory | MSO | 32 hr |
| Oct 29, 7:38 AM MDT | Winter Weather Advisory | MSO | 4 hr |
| Oct 30, 2:55 PM MDT | Winter Storm Watch | MSO | 55 hr |
| Nov 1, 3:36 AM MDT | Winter Storm Warning | MSO | 36 hr |
| Nov 1, 2:35 PM MDT | Winter Weather Advisory | MSO | 25 hr |
| Nov 7, 8:59 AM MST | Winter Storm Watch | MSO | 50 hr |
| Nov 9, 10:52 AM MST | Winter Storm Warning | MSO | 24 hr |
| Nov 9, 10:52 AM MST | Winter Weather Advisory | MSO | 24 hr |
| Nov 10, 12:16 PM MST | Wind Chill Warning | MSO | 53 hr |
| Nov 13, 2:26 PM MST | Winter Weather Advisory | MSO | 42 hr |
| Nov 14, 4:42 AM MST | Wind Chill Advisory | MSO | 27 hr |
| Nov 14, 2:08 PM MST | Areal Flood Advisory | MSO | 70 hr |
| Nov 20, 11:53 AM MST | Winter Weather Advisory | MSO | 4 days |
| Nov 20, 11:53 AM MST | Winter Weather Advisory | MSO | 4 days |
| Nov 23, 2:41 PM MST | Winter Storm Watch | MSO | 25 hr |
| Nov 24, 3:30 PM MST | Winter Storm Warning | MSO | 47 hr |
| Nov 24, 3:30 PM MST | Winter Weather Advisory | MSO | 44 hr |
| Nov 27, 2:33 PM MST | Winter Storm Watch | MSO | 18 hr |
| Nov 28, 8:33 AM MST | Winter Weather Advisory | MSO | 39 hr |
| Dec 3, 4:27 AM MST | Winter Weather Advisory | MSO | 56 hr |
| Dec 6, 8:28 AM MST | Winter Weather Advisory | MSO | 15 hr |
| Dec 12, 11:59 AM MST | Winter Weather Advisory | MSO | 56 hr |
| Dec 19, 3:20 PM MST | Winter Storm Watch | MSO | 19 hr |
| Dec 20, 10:28 AM MST | Winter Weather Advisory | MSO | 49 hr |
| Dec 23, 2:44 PM MST | Winter Weather Advisory | MSO | 44 hr |
| Dec 26, 3:54 AM MST | Winter Storm Watch | MSO | 24 hr |
| Dec 26, 1:53 PM MST | Winter Weather Advisory | MSO | 69 hr |
| Dec 27, 3:39 AM MST | Winter Storm Warning | MSO | 55 hr |
| Dec 29, 11:41 AM MST | Wind Chill Advisory | MSO | 21 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 archive20132015
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.