Alert archive / North Dakota / Billings County

Weather alerts in Billings County, North Dakota, 2021

117 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Billings County and its neighbors

Each county as a circle sized by its count in 2021. Tap one for its archive.

Alerts
117
Warnings
43
Watches
22
Advisories
34
Busiest month
June22 alerts
Busiest day
June 6, 20217 alerts

Over time

By month

Warning verification

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

Billings County, 2021

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings10730%3100%33 min
Flash flood warnings00

Each office's whole area, 2021

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Bismarck, ND: tornado warnings12558%786%8 min
NWS Bismarck, ND: severe thunderstorm warnings16911333%25084%25 min
NWS Bismarck, ND: flash flood warnings7529%6100%92 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
Jan 3, 1:40 PM MSTWind AdvisoryBIS10 hr
Jan 12, 3:03 AM MSTHigh Wind WatchBIS33 hr
Jan 13, 1:53 AM MSTHigh Wind WarningBIS48 hr
Jan 15, 1:26 AM MSTWind AdvisoryBIS14 hr
Jan 20, 2:09 AM MSTWind AdvisoryBIS16 hr
Jan 25, 5:38 AM MSTDense Fog AdvisoryBIS3 hr
Jan 29, 8:39 PM MSTDense Fog AdvisoryBIS14 hr
Jan 31, 6:35 AM MSTDense Fog AdvisoryBIS4 hr
Feb 5, 2:14 AM MSTWind Chill WarningBIS10 days
Feb 5, 2:14 AM MSTWind Chill AdvisoryBIS6 days
Feb 15, 10:47 AM MSTWind Chill AdvisoryBIS24 hr
Feb 21, 1:51 PM MSTWind AdvisoryBIS27 hr
Feb 22, 8:43 PM MSTWind AdvisoryBIS20 hr
Feb 25, 1:11 AM MSTRed Flag WarningBIS17 hr
Mar 5, 12:31 PM MSTFire Weather WatchBIS14 hr
Mar 6, 2:23 AM MSTRed Flag WarningBIS14 hr
Mar 26, 1:33 PM MDTFire Weather WatchBIS44 hr
Mar 27, 1:26 PM MDTRed Flag WarningBIS55 hr
Mar 28, 2:19 PM MDTWind AdvisoryBIS3 hr
Mar 28, 5:44 PM MDTHigh Wind WarningBIS36 hr
Mar 30, 2:25 AM MDTWind AdvisoryBIS19 hr
Mar 30, 2:50 AM MDTRed Flag WarningBIS16 hr
Mar 31, 3:03 AM MDTFire Weather WatchBIS11 hr
Mar 31, 1:42 PM MDTRed Flag WarningBIS31 hr
Apr 2, 2:48 AM MDTRed Flag WarningBIS16 hr
Apr 3, 2:08 AM MDTRed Flag WarningBIS18 hr
Apr 4, 2:41 AM MDTRed Flag WarningBIS17 hr
Apr 8, 1:41 PM MDTWind AdvisoryBIS27 hr
Apr 8, 1:51 PM MDTFire Weather WatchBIS14 hr
Apr 9, 3:24 AM MDTRed Flag WarningBIS18 hr
Apr 10, 1:31 PM MDTWind AdvisoryBIS55 hr
Apr 28, 2:34 PM MDTFire Weather WatchBIS23 hr
Apr 29, 1:38 PM MDTRed Flag WarningBIS30 hr
May 1, 2:18 AM MDTRed Flag WarningBIS17 hr
May 7, 2:37 AM MDTRed Flag WarningBIS17 hr
May 24, 8:19 PM MDTWind AdvisoryBIS21 hr
May 27, 2:39 AM MDTFreeze WatchBIS11 hr
Jun 5, 8:15 PM MDTMesoscale DiscussionSPC2 hr
Jun 5, 8:25 PM MDTSpecial Weather StatementBIS50 min
Jun 5, 9:16 PM MDTSpecial Weather StatementBIS44 min
Jun 5, 9:21 PM MDTSevere Thunderstorm WatchSPC5 hr
Jun 5, 9:58 PM MDTSpecial Weather StatementBIS47 min
Jun 5, 10:11 PM MDTSevere Thunderstorm WarningBIS37 min
Jun 6, 2:09 AM MDTRed Flag WarningBIS18 hr
Jun 8, 5:15 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 8, 7:02 PM MDTSpecial Weather StatementBIS43 min
Jun 8, 7:22 PM MDTSevere Thunderstorm WarningBIS38 min
Jun 8, 7:35 PM MDTMesoscale DiscussionSPC85 min
Jun 10, 12:12 PM MDTWind AdvisoryBIS5 hr
Jun 10, 1:56 PM MDTMesoscale DiscussionSPC94 min
Jun 10, 2:30 PM MDTTornado WatchSPC6 hr
Jun 10, 4:36 PM MDTMesoscale DiscussionSPC114 min
Jun 10, 7:30 PM MDTMesoscale DiscussionSPC2 hr
Jun 10, 8:54 PM MDTSevere Thunderstorm WatchSPC5 hr
Jun 10, 9:35 PM MDTSevere Thunderstorm WarningBIS40 min
Jun 10, 10:01 PM MDTSevere Thunderstorm WarningBIS59 min
Jun 11, 4:19 AM MDTWind AdvisoryBIS16 hr
Jun 19, 5:41 PM MDTSpecial Weather StatementBIS34 min
Jun 19, 8:32 PM MDTSpecial Weather StatementBIS28 min
Jul 8, 2:34 PM MDTMesoscale DiscussionSPC86 min
Jul 8, 3:38 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 8, 4:56 PM MDTMesoscale DiscussionSPC2 hr
Jul 8, 5:51 PM MDTSevere Thunderstorm WarningBIS54 min
Jul 8, 5:52 PM MDTSevere Thunderstorm WarningBIS68 min
Jul 8, 6:11 PM MDTSevere Thunderstorm WarningBIS64 min
Jul 8, 6:44 PM MDTSevere Thunderstorm WarningBIS61 min
Jul 8, 6:50 PM MDTSevere Thunderstorm WarningBIS55 min
Jul 19, 3:23 AM MDTHeat AdvisoryBIS17 hr
Jul 20, 2:47 AM MDTRed Flag WarningBIS19 hr
Jul 22, 2:15 PM MDTSpecial Weather StatementBIS30 min
Jul 22, 2:24 PM MDTMesoscale DiscussionSPC2 hr
Jul 22, 3:02 PM MDTSpecial Weather StatementBIS28 min
Jul 26, 1:05 PM MDTHeat AdvisoryBIS31 hr
Aug 7, 1:31 AM MDTSpecial Weather StatementBIS44 min
Aug 10, 3:02 AM MDTRed Flag WarningBIS17 hr
Aug 16, 2:07 AM MDTRed Flag WarningBIS20 hr
Aug 16, 1:25 PM MDTFire Weather WatchBIS14 hr
Aug 17, 3:17 AM MDTRed Flag WarningBIS17 hr
Aug 22, 8:40 AM MDTWind AdvisoryBIS10 hr
Aug 27, 2:55 PM MDTMesoscale DiscussionSPC2 hr
Sep 2, 9:04 AM MDTSevere Thunderstorm WarningBIS41 min
Sep 4, 2:49 PM MDTFire Weather WatchBIS23 hr
Sep 5, 2:16 PM MDTRed Flag WarningBIS29 hr
Sep 9, 8:16 AM MDTRed Flag WarningBIS11 hr
Sep 14, 12:20 PM MDTFire Weather WatchBIS14 hr
Sep 15, 2:14 AM MDTRed Flag WarningBIS17 hr
Sep 16, 1:31 PM MDTFrost AdvisoryBIS17 hr
Sep 17, 1:59 AM MDTRed Flag WarningBIS17 hr
Sep 17, 1:27 PM MDTFire Weather WatchBIS6 hr
Sep 17, 7:50 PM MDTRed Flag WarningBIS23 hr
Sep 27, 2:35 AM MDTFire Weather WatchBIS11 hr
Sep 27, 1:29 PM MDTRed Flag WarningBIS31 hr
Sep 30, 6:18 PM MDTFrost AdvisoryBIS14 hr
Oct 5, 2:50 AM MDTFire Weather WatchBIS10 hr
Oct 5, 1:07 PM MDTRed Flag WarningBIS30 hr
Oct 12, 2:03 PM MDTWinter Weather AdvisoryBIS30 hr
Oct 12, 2:07 PM MDTWind AdvisoryBIS30 hr
Oct 14, 12:54 PM MDTFreeze WarningBIS19 hr
Oct 24, 5:59 PM MDTWind AdvisoryBIS32 hr
Nov 10, 1:17 PM MSTHigh Wind WatchBIS13 hr
Nov 11, 2:16 AM MSTWind AdvisoryBIS18 hr
Nov 11, 7:52 PM MSTWind AdvisoryBIS12 hr
Nov 12, 1:23 PM MSTHigh Wind WatchBIS13 hr
Nov 13, 2:17 AM MSTHigh Wind WarningBIS18 hr
Nov 15, 12:59 AM MSTHigh Wind WatchBIS13 hr
Nov 15, 1:40 PM MSTHigh Wind WarningBIS51 hr
Nov 16, 8:38 AM MSTRed Flag WarningBIS8 hr
Nov 30, 7:47 PM MSTWind AdvisoryBIS20 hr
Dec 4, 2:33 AM MSTHigh Wind WatchBIS11 hr
Dec 4, 1:17 PM MSTHigh Wind WarningBIS23 hr
Dec 5, 11:53 AM MSTWind AdvisoryBIS8 hr
Dec 15, 1:55 AM MSTWinter Weather AdvisoryBIS24 hr
Dec 17, 1:08 PM MSTWind Chill AdvisoryBIS22 hr
Dec 26, 2:50 AM MSTWinter Weather AdvisoryBIS30 hr
Dec 27, 8:52 AM MSTWind Chill AdvisoryBIS3 days
Dec 30, 12:59 PM MSTWind Chill WarningBIS70 hr
Dec 30, 12:59 PM MSTWind Chill AdvisoryBIS24 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.