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

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings6183%0
Flash flood warnings2150%0

Each office's whole area, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Billings, MT: tornado warnings13562%875%21 min
NWS Billings, MT: severe thunderstorm warnings1717656%19074%21 min
NWS Billings, MT: flash flood warnings21576%7100%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.

IssuedProductOfficeLasted
Dec 31, 8:39 PM MSTWind Chill AdvisoryBYZ14 hr
Jan 1, 3:46 AM MSTWinter Weather AdvisoryBYZ49 hr
Jan 4, 3:12 PM MSTHigh Wind WatchBYZ24 hr
Jan 5, 8:19 AM MSTWinter Weather AdvisoryBYZ6 hr
Jan 5, 3:16 PM MSTHigh Wind WarningBYZ24 hr
Jan 15, 3:00 PM MSTHigh Wind WatchBYZ12 hr
Jan 16, 3:07 AM MSTHigh Wind WarningBYZ20 hr
Jan 17, 12:47 AM MSTFreezing Rain AdvisoryBYZ14 hr
Jan 19, 2:58 PM MSTHigh Wind WatchBYZ12 hr
Jan 20, 3:06 AM MSTHigh Wind WarningBYZ18 hr
Jan 21, 3:39 PM MSTWinter Weather AdvisoryBYZ25 hr
Jan 26, 3:00 PM MSTHigh Wind WatchBYZ13 hr
Jan 27, 3:59 AM MSTHigh Wind WarningBYZ15 hr
Jan 28, 3:17 PM MSTWinter Weather AdvisoryBYZ60 hr
Jan 31, 3:33 AM MSTWind Chill AdvisoryBYZ25 hr
Feb 1, 11:08 PM MSTWind Chill AdvisoryBYZ11 hr
Feb 5, 3:10 PM MSTWinter Storm WatchBYZ24 hr
Feb 6, 3:08 PM MSTWinter Storm WarningBYZ33 hr
Feb 10, 1:47 PM MSTHigh Wind WatchBYZ38 hr
Feb 11, 3:46 AM MSTHigh Wind WarningBYZ62 hr
Feb 14, 4:35 AM MSTHigh Wind WatchBYZ10 hr
Feb 17, 5:27 AM MSTWinter Weather AdvisoryBYZ7 hr
Feb 19, 3:47 AM MSTWinter Weather AdvisoryBYZ38 hr
Feb 23, 7:56 PM MSTWind Chill AdvisoryBYZ30 hr
Feb 26, 2:47 AM MSTWind Chill AdvisoryBYZ8 hr
Mar 21, 3:02 PM MDTWinter Weather AdvisoryBYZ38 hr
Mar 22, 6:25 AM MDTWinter Storm WarningBYZ23 hr
Mar 29, 3:17 PM MDTWinter Storm WarningBYZ60 hr
Apr 6, 3:40 PM MDTWinter Storm WarningBYZ53 hr
Apr 18, 4:34 AM MDTWinter Storm WarningBYZ35 hr
Apr 21, 3:28 AM MDTWinter Storm WarningBYZ38 hr
May 7, 3:31 PM MDTWinter Storm WatchBYZ12 hr
May 8, 3:40 AM MDTWinter Storm WarningBYZ62 hr
May 17, 3:35 PM MDTFlood WatchBYZ5 days
May 23, 9:52 AM MDTFlood WatchBYZ48 hr
May 23, 11:10 AM MDTAreal Flood WarningBYZ26 hr
May 24, 12:43 PM MDTAreal Flood WarningBYZ48 hr
May 26, 11:54 AM MDTAreal Flood WarningBYZ9 days
May 27, 3:48 AM MDTFlood WatchBYZ4 days
May 28, 3:52 AM MDTWinter Storm WatchBYZ24 hr
May 29, 3:49 AM MDTWinter Storm WarningBYZ40 hr
Jun 5, 3:02 PM MDTFlood WatchBYZ41 hr
Jun 6, 2:13 PM MDTMesoscale DiscussionSPC2 hr
Jun 6, 4:45 PM MDTMesoscale DiscussionSPC2 hr
Jun 6, 5:46 PM MDTTornado WatchSPC7 hr
Jun 6, 6:55 PM MDTSevere Thunderstorm WarningBYZ65 min
Jun 6, 7:39 PM MDTTornado WarningBYZ36 min
Jun 6, 8:03 PM MDTFlash Flood WarningBYZ3 hr
Jun 6, 8:25 PM MDTSevere Thunderstorm WarningBYZ50 min
Jun 6, 8:25 PM MDTMesoscale DiscussionSPC95 min
Jun 7, 8:17 AM MDTAreal Flood WarningBYZ7 days
Jun 23, 4:50 PM MDTMesoscale DiscussionSPC85 min
Jun 24, 5:00 PM MDTSevere Thunderstorm WarningBYZ60 min
Jun 29, 12:35 PM MDTMesoscale DiscussionSPC115 min
Jun 29, 3:46 PM MDTSevere Thunderstorm WatchSPC5 hr
Jun 29, 6:17 PM MDTMesoscale DiscussionSPC118 min
Jul 3, 12:31 PM MDTMesoscale DiscussionSPC2 hr
Jul 3, 4:08 PM MDTSevere Thunderstorm WatchSPC8 hr
Jul 3, 4:32 PM MDTSpecial Weather StatementBYZ58 min
Jul 6, 2:19 PM MDTMesoscale DiscussionSPC2 hr
Jul 7, 12:39 PM MDTSpecial Weather StatementTFX51 min
Jul 7, 2:26 PM MDTSpecial Weather StatementBYZ64 min
Jul 7, 2:39 PM MDTSpecial Weather StatementTFX51 min
Jul 7, 3:08 PM MDTFlash Flood WarningBYZ3 hr
Jul 7, 5:23 PM MDTSpecial Weather StatementBYZ52 min
Jul 7, 5:47 PM MDTSevere Thunderstorm WarningBYZ58 min
Jul 7, 6:23 PM MDTSevere Thunderstorm WarningBYZ29 min
Jul 7, 7:56 PM MDTSpecial Weather StatementBYZ64 min
Jul 8, 1:38 PM MDTMesoscale DiscussionSPC97 min
Jul 11, 12:36 PM MDTSpecial Weather StatementBYZ39 min
Jul 12, 1:38 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 12, 2:36 PM MDTSpecial Weather StatementBYZ54 min
Jul 12, 5:30 PM MDTMesoscale DiscussionSPC60 min
Jul 13, 4:08 PM MDTSpecial Weather StatementBYZ67 min
Jul 13, 5:13 PM MDTMesoscale DiscussionSPC62 min
Jul 14, 11:04 AM MDTMesoscale DiscussionSPC116 min
Jul 14, 1:56 PM MDTSevere Thunderstorm WatchSPC9 hr
Jul 14, 3:00 PM MDTSpecial Weather StatementBYZ60 min
Jul 14, 3:23 PM MDTSpecial Weather StatementBYZ37 min
Jul 14, 3:44 PM MDTSevere Thunderstorm WarningBYZ40 min
Jul 15, 2:39 PM MDTMesoscale DiscussionSPC2 hr
Jul 16, 4:14 PM MDTMesoscale DiscussionSPC61 min
Jul 25, 2:23 PM MDTMesoscale DiscussionSPC97 min
Aug 1, 8:07 PM MDTSpecial Weather StatementBYZ53 min
Aug 9, 3:08 PM MDTSpecial Weather StatementBYZ37 min
Aug 15, 1:38 PM MDTMesoscale DiscussionSPC2 hr
Aug 15, 2:57 PM MDTSpecial Weather StatementBYZ48 min
Aug 22, 2:39 PM MDTRed Flag WarningBYZ30 hr
Aug 24, 2:32 PM MDTFire Weather WatchBYZ13 hr
Aug 25, 3:04 AM MDTRed Flag WarningBYZ18 hr
Aug 26, 3:54 PM MDTMesoscale DiscussionSPC96 min
Aug 26, 4:26 PM MDTSevere Thunderstorm WatchSPC5 hr
Aug 30, 3:26 PM MDTRed Flag WarningBYZ30 hr
Aug 31, 2:20 PM MDTMesoscale DiscussionSPC115 min
Aug 31, 2:51 PM MDTSpecial Weather StatementBYZ54 min
Aug 31, 3:56 PM MDTSpecial Weather StatementBYZ64 min
Aug 31, 4:38 PM MDTSpecial Weather StatementBYZ67 min
Sep 19, 2:23 AM MDTRed Flag WarningBYZ19 hr
Sep 19, 1:15 PM MDTMesoscale DiscussionSPC2 hr
Sep 25, 2:45 AM MDTRed Flag WarningBYZ19 hr
Sep 27, 3:18 AM MDTRed Flag WarningBYZ18 hr
Sep 29, 3:05 PM MDTFire Weather WatchBYZ14 hr
Sep 29, 3:05 PM MDTRed Flag WarningBYZ30 hr
Sep 30, 4:04 AM MDTRed Flag WarningBYZ41 hr
Oct 2, 3:29 AM MDTRed Flag WarningBYZ18 hr
Nov 13, 4:18 AM MSTHigh Wind WatchBYZ15 hr
Nov 17, 3:37 PM MSTWinter Weather AdvisoryBYZ48 hr
Nov 29, 4:16 PM MSTWinter Weather AdvisoryBYZ35 hr
Nov 30, 4:19 AM MSTWinter Storm WarningBYZ26 hr
Dec 20, 3:47 PM MSTWinter Weather AdvisoryBYZ29 hr
Dec 27, 8:56 AM MSTHigh Wind WarningBYZ60 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.