Alert archive / Montana / Park County
Weather alerts in Park County, Montana, 2015
83 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Park County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 83
- Warnings
- 22
- Watches
- 13
- Advisories
- 27
- Busiest month
- January12 alerts
- Busiest day
- June 1, 20156 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Park County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 0 | 5 | 0% | |||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Glasgow, MT: tornado warnings | 0 | 1 | 0% | |||
| NWS Glasgow, MT: severe thunderstorm warnings | 65 | 39 | 40% | 86 | 72% | 24 min |
| NWS Glasgow, MT: flash flood warnings | 3 | 0 | 100% | 4 | 0% | |
| NWS Missoula, MT: severe thunderstorm warnings | 19 | 8 | 58% | 18 | 67% | 14 min |
| NWS Missoula, MT: flash flood warnings | 1 | 0 | 100% | 3 | 0% | |
| NWS Great Falls, MT: tornado warnings | 6 | 0 | 100% | 0 | ||
| NWS Great Falls, MT: severe thunderstorm warnings | 20 | 6 | 70% | 39 | 26% | 23 min |
| NWS Great Falls, MT: flash flood warnings | 1 | 0 | 100% | 1 | 0% | |
| NWS Billings, MT: tornado warnings | 3 | 0 | 100% | 0 | ||
| NWS Billings, MT: severe thunderstorm warnings | 91 | 58 | 36% | 169 | 71% | 23 min |
| NWS Billings, MT: flash flood warnings | 11 | 5 | 55% | 30 | 57% | 50 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, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 1, 2:55 PM MST | Wind Advisory | BYZ | 31 hr |
| Jan 2, 4:12 AM MST | Winter Weather Advisory | BYZ | 31 hr |
| Jan 3, 2:57 PM MST | Winter Storm Watch | BYZ | 13 hr |
| Jan 3, 2:57 PM MST | Winter Weather Advisory | BYZ | 4 days |
| Jan 4, 4:21 AM MST | Winter Storm Warning | BYZ | 71 hr |
| Jan 4, 4:28 AM MST | Wind Advisory | BYZ | 11 hr |
| Jan 4, 3:12 PM MST | High Wind Warning | BYZ | 19 hr |
| Jan 6, 2:11 AM MST | Wind Advisory | BYZ | 7 hr |
| Jan 10, 3:11 PM MST | Winter Weather Advisory | BYZ | 24 hr |
| Jan 14, 9:16 AM MST | Special Weather Statement | BYZ | 4 hr |
| Jan 15, 3:01 AM MST | Wind Advisory | BYZ | 3 days |
| Jan 23, 3:20 AM MST | Wind Advisory | BYZ | 66 hr |
| Feb 5, 3:08 AM MST | Wind Advisory | BYZ | 42 hr |
| Feb 6, 3:40 AM MST | High Wind Warning | BYZ | 40 hr |
| Feb 19, 3:25 AM MST | Winter Storm Watch | BYZ | 11 hr |
| Feb 19, 2:41 PM MST | Winter Storm Warning | BYZ | 49 hr |
| Feb 20, 3:44 PM MST | Winter Weather Advisory | BYZ | 24 hr |
| Mar 1, 4:02 AM MST | Winter Storm Watch | BYZ | 24 hr |
| Mar 2, 3:43 AM MST | Winter Storm Warning | BYZ | 32 hr |
| Mar 13, 2:25 PM MDT | Red Flag Warning | BYZ | 30 hr |
| Mar 14, 3:25 AM MDT | Wind Advisory | BYZ | 41 hr |
| Mar 24, 3:41 AM MDT | Winter Storm Warning | BYZ | 24 hr |
| Mar 27, 3:17 AM MDT | Fire Weather Watch | BYZ | 9 hr |
| Mar 27, 12:45 PM MDT | Red Flag Warning | BYZ | 32 hr |
| Mar 30, 3:42 AM MDT | Fire Weather Watch | BYZ | 9 hr |
| Mar 30, 12:30 PM MDT | Red Flag Warning | BYZ | 56 hr |
| Apr 5, 6:49 PM MDT | Special Weather Statement | BYZ | 116 min |
| Apr 5, 8:11 PM MDT | Winter Weather Advisory | BYZ | 14 hr |
| Apr 11, 4:03 AM MDT | Red Flag Warning | BYZ | 40 hr |
| Apr 13, 4:01 AM MDT | Fire Weather Watch | BYZ | 10 hr |
| Apr 13, 2:20 PM MDT | Red Flag Warning | BYZ | 31 hr |
| Apr 14, 4:20 AM MDT | Winter Weather Advisory | BYZ | 50 hr |
| May 15, 3:07 PM MDT | Winter Storm Warning | BYZ | 35 hr |
| May 30, 2:00 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 31, 4:23 PM MDT | Mesoscale Discussion | SPC | 97 min |
| May 31, 7:25 PM MDT | Special Weather Statement | BYZ | 50 min |
| Jun 1, 12:48 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jun 1, 1:46 PM MDT | Mesoscale Discussion | SPC | 89 min |
| Jun 1, 2:19 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 1, 4:20 PM MDT | Special Weather Statement | BYZ | 40 min |
| Jun 1, 4:31 PM MDT | Mesoscale Discussion | SPC | 59 min |
| Jun 5, 4:02 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 9, 3:29 PM MDT | Special Weather Statement | BYZ | 5 hr |
| Jun 16, 11:23 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 18, 3:57 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 19, 2:04 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Jun 29, 5:30 PM MDT | Special Weather Statement | BYZ | 60 min |
| Jul 21, 2:08 PM MDT | Special Weather Statement | BYZ | 52 min |
| Jul 21, 3:47 PM MDT | Special Weather Statement | BYZ | 58 min |
| Aug 5, 3:10 PM MDT | Special Weather Statement | BYZ | 50 min |
| Aug 12, 8:57 PM MDT | Special Weather Statement | BYZ | 63 min |
| Aug 14, 5:41 PM MDT | Special Weather Statement | BYZ | 64 min |
| Aug 21, 4:15 PM MDT | Special Weather Statement | BYZ | 60 min |
| Aug 28, 3:27 AM MDT | Fire Weather Watch | BYZ | 11 hr |
| Aug 28, 2:56 PM MDT | Red Flag Warning | BYZ | 56 hr |
| Sep 1, 3:10 AM MDT | Red Flag Warning | BYZ | 42 hr |
| Sep 13, 3:42 AM MDT | Red Flag Warning | BYZ | 17 hr |
| Sep 14, 9:26 PM MDT | Special Weather Statement | BYZ | 49 min |
| Sep 24, 3:34 AM MDT | Fire Weather Watch | BYZ | 24 hr |
| Oct 10, 2:43 PM MDT | Wind Advisory | BYZ | 30 hr |
| Oct 11, 3:14 AM MDT | Red Flag Warning | BYZ | 17 hr |
| Oct 30, 3:10 AM MDT | Wind Advisory | BYZ | 52 hr |
| Nov 2, 1:19 PM MST | Winter Storm Warning | BYZ | 38 hr |
| Nov 3, 8:45 AM MST | Winter Weather Advisory | BYZ | 19 hr |
| Nov 7, 2:48 AM MST | Wind Advisory | BYZ | 27 hr |
| Nov 11, 3:13 AM MST | Wind Advisory | BYZ | 17 hr |
| Nov 12, 2:50 AM MST | Wind Advisory | BYZ | 61 hr |
| Nov 16, 3:53 AM MST | High Wind Watch | BYZ | 24 hr |
| Nov 17, 3:39 AM MST | High Wind Warning | BYZ | 39 hr |
| Nov 19, 4:58 AM MST | Winter Weather Advisory | BYZ | 34 hr |
| Nov 23, 3:27 AM MST | Winter Storm Watch | BYZ | 12 hr |
| Nov 23, 2:57 PM MST | Winter Storm Warning | BYZ | 57 hr |
| Nov 23, 2:57 PM MST | Winter Weather Advisory | BYZ | 66 hr |
| Dec 4, 2:57 AM MST | Wind Advisory | BYZ | 8 hr |
| Dec 5, 2:40 AM MST | Wind Advisory | BYZ | 4 days |
| Dec 8, 11:14 PM MST | High Wind Warning | BYZ | 19 hr |
| Dec 12, 2:06 PM MST | Winter Storm Watch | BYZ | 49 hr |
| Dec 12, 8:36 PM MST | Wind Advisory | BYZ | 15 hr |
| Dec 13, 1:49 PM MST | Winter Storm Warning | BYZ | 56 hr |
| Dec 17, 10:49 PM MST | Winter Weather Advisory | BYZ | 16 hr |
| Dec 18, 7:57 AM MST | Blizzard Warning | BYZ | 7 hr |
| Dec 18, 2:31 PM MST | Wind Advisory | BYZ | 13 hr |
| Dec 20, 9:36 PM MST | Wind Advisory | BYZ | 5 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 8 |
| Special Weather Statement | 13 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 8 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 10 |
| Wind and dust | |
| High Wind Warning | 4 |
| High Wind Watch | 1 |
| Wind Advisory | 17 |
| Fire | |
| Red Flag Warning | 9 |
| Fire Weather Watch | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20142016
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.