Alert archive / Montana / Wheatland County

Weather alerts in Wheatland County, Montana, 2021

104 weather alerts in 2021, 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 2021. Tap one for its archive.

Alerts
104
Warnings
32
Watches
20
Advisories
22
Busiest month
December16 alerts
Busiest day
June 5, 20215 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Wheatland County, 2021

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings4250%250%5 min
Flash flood warnings00

Each office's whole area, 2021

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Billings, MT: severe thunderstorm warnings512355%8442%18 min
NWS Billings, MT: flash flood warnings20100%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.

IssuedProductOfficeLasted
Jan 1, 1:19 PM MSTHigh Wind WarningBYZ53 hr
Jan 3, 2:30 PM MSTSpecial Weather StatementBYZ2 hr
Jan 11, 3:04 AM MSTHigh Wind WatchBYZ34 hr
Jan 12, 2:51 AM MSTHigh Wind WarningBYZ65 hr
Jan 12, 12:06 PM MSTWinter Storm WarningBYZ34 hr
Jan 17, 2:47 AM MSTWinter Weather AdvisoryBYZ33 hr
Jan 18, 2:43 PM MSTHigh Wind WatchBYZ12 hr
Jan 19, 2:36 AM MSTHigh Wind WarningBYZ35 hr
Jan 20, 2:06 PM MSTWinter Weather AdvisoryBYZ45 hr
Jan 29, 11:34 PM MSTSpecial Weather StatementBYZ86 min
Jan 30, 1:12 AM MSTSpecial Weather StatementBYZ2 hr
Feb 3, 2:50 AM MSTSpecial Weather StatementBYZ115 min
Feb 3, 2:50 PM MSTWinter Storm WatchBYZ37 hr
Feb 4, 9:28 AM MSTWinter Storm WarningBYZ3 days
Feb 6, 3:26 AM MSTWind Chill AdvisoryBYZ10 days
Feb 7, 3:48 AM MSTWinter Weather AdvisoryBYZ24 hr
Feb 10, 3:39 AM MSTWind Chill WarningBYZ4 days
Feb 14, 2:24 AM MSTWinter Weather AdvisoryBYZ48 hr
Feb 19, 11:08 AM MSTHigh Wind WatchBYZ16 hr
Feb 20, 3:00 AM MSTHigh Wind WarningBYZ4 days
Feb 21, 12:24 PM MSTSpecial Weather StatementBYZ3 hr
Feb 24, 3:01 AM MSTHigh Wind WatchBYZ11 hr
Feb 24, 1:38 PM MSTHigh Wind WarningBYZ49 hr
Mar 11, 2:06 AM MSTDense Fog AdvisoryBYZ6 hr
Mar 27, 3:15 AM MDTHigh Wind WatchBYZ23 hr
Mar 28, 2:27 AM MDTHigh Wind WarningBYZ40 hr
Apr 4, 1:43 PM MDTWinter Weather AdvisoryBYZ49 hr
Apr 17, 2:09 AM MDTWinter Storm WatchBYZ13 hr
Apr 17, 3:31 PM MDTWinter Storm WarningBYZ45 hr
Apr 17, 3:31 PM MDTWinter Weather AdvisoryBYZ42 hr
Apr 22, 2:19 AM MDTWinter Weather AdvisoryBYZ32 hr
May 7, 2:25 PM MDTMesoscale DiscussionSPC2 hr
May 7, 5:09 PM MDTSpecial Weather StatementBYZ51 min
May 21, 2:52 AM MDTWinter Weather AdvisoryBYZ6 hr
Jun 4, 1:59 PM MDTMesoscale DiscussionSPC2 hr
Jun 4, 4:01 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 4, 4:42 PM MDTSpecial Weather StatementTFX33 min
Jun 4, 4:55 PM MDTSevere Thunderstorm WarningBYZ35 min
Jun 4, 8:10 PM MDTMesoscale DiscussionSPC2 hr
Jun 4, 9:19 PM MDTSpecial Weather StatementBYZ26 min
Jun 4, 11:24 PM MDTSpecial Weather StatementBYZ36 min
Jun 4, 11:41 PM MDTSevere Thunderstorm WarningBYZ34 min
Jun 5, 2:27 PM MDTMesoscale DiscussionSPC2 hr
Jun 10, 1:47 PM MDTMesoscale DiscussionSPC88 min
Jun 10, 7:45 PM MDTSpecial Weather StatementBYZ2 hr
Jun 14, 9:26 AM MDTRed Flag WarningBYZ43 hr
Jun 14, 2:27 PM MDTMesoscale DiscussionSPC2 hr
Jul 4, 4:32 PM MDTSpecial Weather StatementTFX28 min
Jul 6, 2:37 PM MDTMesoscale DiscussionSPC83 min
Jul 7, 2:03 PM MDTMesoscale DiscussionSPC117 min
Jul 7, 3:03 PM MDTSevere Thunderstorm WatchSPC8 hr
Jul 7, 5:26 PM MDTSpecial Weather StatementBYZ49 min
Jul 7, 5:48 PM MDTMesoscale DiscussionSPC117 min
Jul 7, 5:49 PM MDTSevere Thunderstorm WarningBYZ56 min
Jul 16, 3:14 PM MDTHeat AdvisoryBYZ3 days
Jul 18, 3:10 PM MDTRed Flag WarningBYZ57 hr
Jul 21, 1:39 PM MDTFire Weather WatchBYZ24 hr
Jul 22, 1:40 PM MDTRed Flag WarningBYZ31 hr
Jul 22, 1:50 PM MDTMesoscale DiscussionSPC2 hr
Jul 22, 4:07 PM MDTSevere Thunderstorm WatchSPC5 hr
Jul 24, 12:18 PM MDTExcessive Heat WatchBYZ25 hr
Jul 25, 1:39 PM MDTExcessive Heat WarningBYZ58 hr
Aug 2, 2:09 PM MDTSpecial Weather StatementTFX36 min
Aug 4, 6:46 PM MDTSpecial Weather StatementBYZ44 min
Aug 7, 3:06 AM MDTFire Weather WatchBYZ11 hr
Aug 7, 2:26 PM MDTRed Flag WarningBYZ34 hr
Aug 9, 2:58 AM MDTFire Weather WatchBYZ10 hr
Aug 14, 3:08 AM MDTFire Weather WatchBYZ11 hr
Aug 14, 2:07 PM MDTRed Flag WarningBYZ3 days
Aug 16, 2:49 PM MDTMesoscale DiscussionSPC116 min
Aug 17, 2:21 PM MDTMesoscale DiscussionSPC114 min
Sep 3, 3:56 PM MDTSpecial Weather StatementBYZ49 min
Sep 3, 4:05 PM MDTSevere Thunderstorm WarningBYZ40 min
Sep 4, 2:20 PM MDTFire Weather WatchBYZ24 hr
Sep 5, 2:29 PM MDTRed Flag WarningBYZ30 hr
Sep 14, 1:04 PM MDTRed Flag WarningBYZ31 hr
Sep 16, 1:53 PM MDTRed Flag WarningBYZ55 hr
Oct 9, 1:08 PM MDTWinter Storm WatchBYZ38 hr
Oct 10, 2:47 PM MDTWinter Storm WarningBYZ3 days
Oct 11, 3:34 AM MDTWinter Weather AdvisoryBYZ47 hr
Oct 25, 1:31 PM MDTHigh Wind WatchBYZ36 hr
Oct 27, 1:53 AM MDTHigh Wind WarningBYZ18 hr
Nov 12, 2:05 AM MSTHigh Wind WatchBYZ12 hr
Nov 12, 1:58 PM MSTHigh Wind WarningBYZ28 hr
Nov 14, 2:15 AM MSTHigh Wind WarningBYZ61 hr
Nov 15, 2:44 AM MSTHigh Wind WarningBYZ39 hr
Nov 25, 2:26 AM MSTHigh Wind WarningBYZ37 hr
Nov 29, 2:04 PM MSTHigh Wind WarningBYZ67 hr
Dec 6, 1:18 AM MSTWinter Weather AdvisoryBYZ32 hr
Dec 10, 1:46 AM MSTHigh Wind WatchBYZ12 hr
Dec 10, 2:04 PM MSTHigh Wind WarningBYZ51 hr
Dec 13, 2:37 PM MSTWinter Weather AdvisoryBYZ50 hr
Dec 15, 2:11 PM MSTWind Chill AdvisoryBYZ55 hr
Dec 18, 2:40 PM MSTHigh Wind WarningBYZ25 hr
Dec 18, 2:41 PM MSTWinter Weather AdvisoryBYZ44 hr
Dec 20, 2:44 PM MSTWinter Weather AdvisoryBYZ12 hr
Dec 23, 7:47 PM MSTSpecial Weather StatementBYZ58 min
Dec 26, 4:06 AM MSTWinter Weather AdvisoryBYZ17 hr
Dec 26, 4:59 AM MSTSpecial Weather StatementBYZ3 hr
Dec 26, 8:00 AM MSTSpecial Weather StatementBYZ90 min
Dec 26, 6:39 PM MSTWind Chill AdvisoryBYZ41 hr
Dec 28, 2:27 PM MSTWind Chill AdvisoryBYZ23 hr
Dec 30, 2:47 AM MSTWinter Weather AdvisoryBYZ32 hr
Dec 30, 12:30 PM MSTWinter Weather AdvisoryBYZ27 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 archive20202022

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.