Alert archive / Montana / Wheatland County
Weather alerts in Wheatland County, Montana, 2011
111 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Wheatland County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 111
- Warnings
- 37
- Watches
- 22
- Advisories
- 16
- Busiest month
- July27 alerts
- Busiest day
- June 7, 20116 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Wheatland County in 2011 had a tornado report inside them.
Wheatland County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 6 | 1 | 83% | 0 | ||
| Flash flood warnings | 2 | 1 | 50% | 0 |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Billings, MT: tornado warnings | 13 | 5 | 62% | 8 | 75% | 21 min |
| NWS Billings, MT: severe thunderstorm warnings | 171 | 76 | 56% | 190 | 74% | 21 min |
| NWS Billings, MT: flash flood warnings | 21 | 5 | 76% | 7 | 100% | 40 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 |
|---|---|---|---|
| Dec 31, 8:39 PM MST | Wind Chill Advisory | BYZ | 14 hr |
| Jan 1, 3:46 AM MST | Winter Weather Advisory | BYZ | 49 hr |
| Jan 4, 3:12 PM MST | High Wind Watch | BYZ | 24 hr |
| Jan 5, 8:19 AM MST | Winter Weather Advisory | BYZ | 6 hr |
| Jan 5, 3:16 PM MST | High Wind Warning | BYZ | 24 hr |
| Jan 15, 3:00 PM MST | High Wind Watch | BYZ | 12 hr |
| Jan 16, 3:07 AM MST | High Wind Warning | BYZ | 20 hr |
| Jan 17, 12:47 AM MST | Freezing Rain Advisory | BYZ | 14 hr |
| Jan 19, 2:58 PM MST | High Wind Watch | BYZ | 12 hr |
| Jan 20, 3:06 AM MST | High Wind Warning | BYZ | 18 hr |
| Jan 21, 3:39 PM MST | Winter Weather Advisory | BYZ | 25 hr |
| Jan 26, 3:00 PM MST | High Wind Watch | BYZ | 13 hr |
| Jan 27, 3:59 AM MST | High Wind Warning | BYZ | 15 hr |
| Jan 28, 3:17 PM MST | Winter Weather Advisory | BYZ | 60 hr |
| Jan 31, 3:33 AM MST | Wind Chill Advisory | BYZ | 25 hr |
| Feb 1, 11:08 PM MST | Wind Chill Advisory | BYZ | 11 hr |
| Feb 5, 3:10 PM MST | Winter Storm Watch | BYZ | 24 hr |
| Feb 6, 3:08 PM MST | Winter Storm Warning | BYZ | 33 hr |
| Feb 10, 1:47 PM MST | High Wind Watch | BYZ | 38 hr |
| Feb 11, 3:46 AM MST | High Wind Warning | BYZ | 62 hr |
| Feb 14, 4:35 AM MST | High Wind Watch | BYZ | 10 hr |
| Feb 17, 5:27 AM MST | Winter Weather Advisory | BYZ | 7 hr |
| Feb 19, 3:47 AM MST | Winter Weather Advisory | BYZ | 38 hr |
| Feb 23, 7:56 PM MST | Wind Chill Advisory | BYZ | 30 hr |
| Feb 26, 2:47 AM MST | Wind Chill Advisory | BYZ | 8 hr |
| Mar 21, 3:02 PM MDT | Winter Weather Advisory | BYZ | 38 hr |
| Mar 22, 6:25 AM MDT | Winter Storm Warning | BYZ | 23 hr |
| Mar 29, 3:17 PM MDT | Winter Storm Warning | BYZ | 60 hr |
| Apr 6, 3:40 PM MDT | Winter Storm Warning | BYZ | 53 hr |
| Apr 18, 4:34 AM MDT | Winter Storm Warning | BYZ | 35 hr |
| Apr 21, 3:28 AM MDT | Winter Storm Warning | BYZ | 38 hr |
| May 7, 3:31 PM MDT | Winter Storm Watch | BYZ | 12 hr |
| May 8, 3:40 AM MDT | Winter Storm Warning | BYZ | 62 hr |
| May 17, 3:35 PM MDT | Flood Watch | BYZ | 5 days |
| May 23, 9:52 AM MDT | Flood Watch | BYZ | 48 hr |
| May 23, 11:10 AM MDT | Areal Flood Warning | BYZ | 26 hr |
| May 24, 12:43 PM MDT | Areal Flood Warning | BYZ | 48 hr |
| May 26, 11:54 AM MDT | Areal Flood Warning | BYZ | 9 days |
| May 27, 3:48 AM MDT | Flood Watch | BYZ | 4 days |
| May 28, 3:52 AM MDT | Winter Storm Watch | BYZ | 24 hr |
| May 29, 3:49 AM MDT | Winter Storm Warning | BYZ | 40 hr |
| Jun 5, 3:02 PM MDT | Flood Watch | BYZ | 41 hr |
| Jun 6, 2:13 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 6, 4:45 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 6, 5:46 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 6, 6:55 PM MDT | Severe Thunderstorm Warning | BYZ | 65 min |
| Jun 6, 7:39 PM MDT | Tornado Warning | BYZ | 36 min |
| Jun 6, 8:03 PM MDT | Flash Flood Warning | BYZ | 3 hr |
| Jun 6, 8:25 PM MDT | Severe Thunderstorm Warning | BYZ | 50 min |
| Jun 6, 8:25 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jun 7, 8:17 AM MDT | Areal Flood Warning | BYZ | 7 days |
| Jun 23, 4:50 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Jun 24, 5:00 PM MDT | Severe Thunderstorm Warning | BYZ | 60 min |
| Jun 29, 12:35 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jun 29, 3:46 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 29, 6:17 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jul 3, 12:31 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 4:08 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 3, 4:32 PM MDT | Special Weather Statement | BYZ | 58 min |
| Jul 6, 2:19 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 7, 12:39 PM MDT | Special Weather Statement | TFX | 51 min |
| Jul 7, 2:26 PM MDT | Special Weather Statement | BYZ | 64 min |
| Jul 7, 2:39 PM MDT | Special Weather Statement | TFX | 51 min |
| Jul 7, 3:08 PM MDT | Flash Flood Warning | BYZ | 3 hr |
| Jul 7, 5:23 PM MDT | Special Weather Statement | BYZ | 52 min |
| Jul 7, 5:47 PM MDT | Severe Thunderstorm Warning | BYZ | 58 min |
| Jul 7, 6:23 PM MDT | Severe Thunderstorm Warning | BYZ | 29 min |
| Jul 7, 7:56 PM MDT | Special Weather Statement | BYZ | 64 min |
| Jul 8, 1:38 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Jul 11, 12:36 PM MDT | Special Weather Statement | BYZ | 39 min |
| Jul 12, 1:38 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 12, 2:36 PM MDT | Special Weather Statement | BYZ | 54 min |
| Jul 12, 5:30 PM MDT | Mesoscale Discussion | SPC | 60 min |
| Jul 13, 4:08 PM MDT | Special Weather Statement | BYZ | 67 min |
| Jul 13, 5:13 PM MDT | Mesoscale Discussion | SPC | 62 min |
| Jul 14, 11:04 AM MDT | Mesoscale Discussion | SPC | 116 min |
| Jul 14, 1:56 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 14, 3:00 PM MDT | Special Weather Statement | BYZ | 60 min |
| Jul 14, 3:23 PM MDT | Special Weather Statement | BYZ | 37 min |
| Jul 14, 3:44 PM MDT | Severe Thunderstorm Warning | BYZ | 40 min |
| Jul 15, 2:39 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 4:14 PM MDT | Mesoscale Discussion | SPC | 61 min |
| Jul 25, 2:23 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Aug 1, 8:07 PM MDT | Special Weather Statement | BYZ | 53 min |
| Aug 9, 3:08 PM MDT | Special Weather Statement | BYZ | 37 min |
| Aug 15, 1:38 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 15, 2:57 PM MDT | Special Weather Statement | BYZ | 48 min |
| Aug 22, 2:39 PM MDT | Red Flag Warning | BYZ | 30 hr |
| Aug 24, 2:32 PM MDT | Fire Weather Watch | BYZ | 13 hr |
| Aug 25, 3:04 AM MDT | Red Flag Warning | BYZ | 18 hr |
| Aug 26, 3:54 PM MDT | Mesoscale Discussion | SPC | 96 min |
| Aug 26, 4:26 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 30, 3:26 PM MDT | Red Flag Warning | BYZ | 30 hr |
| Aug 31, 2:20 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Aug 31, 2:51 PM MDT | Special Weather Statement | BYZ | 54 min |
| Aug 31, 3:56 PM MDT | Special Weather Statement | BYZ | 64 min |
| Aug 31, 4:38 PM MDT | Special Weather Statement | BYZ | 67 min |
| Sep 19, 2:23 AM MDT | Red Flag Warning | BYZ | 19 hr |
| Sep 19, 1:15 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 25, 2:45 AM MDT | Red Flag Warning | BYZ | 19 hr |
| Sep 27, 3:18 AM MDT | Red Flag Warning | BYZ | 18 hr |
| Sep 29, 3:05 PM MDT | Fire Weather Watch | BYZ | 14 hr |
| Sep 29, 3:05 PM MDT | Red Flag Warning | BYZ | 30 hr |
| Sep 30, 4:04 AM MDT | Red Flag Warning | BYZ | 41 hr |
| Oct 2, 3:29 AM MDT | Red Flag Warning | BYZ | 18 hr |
| Nov 13, 4:18 AM MST | High Wind Watch | BYZ | 15 hr |
| Nov 17, 3:37 PM MST | Winter Weather Advisory | BYZ | 48 hr |
| Nov 29, 4:16 PM MST | Winter Weather Advisory | BYZ | 35 hr |
| Nov 30, 4:19 AM MST | Winter Storm Warning | BYZ | 26 hr |
| Dec 20, 3:47 PM MST | Winter Weather Advisory | BYZ | 29 hr |
| Dec 27, 8:56 AM MST | High Wind Warning | BYZ | 60 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 archive20102012
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.