Alert archive / Montana / Musselshell County

Weather alerts in Musselshell County, Montana, 2018

113 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Musselshell County and its neighbors

Each county as a circle sized by its count in 2018. Tap one for its archive.

Alerts
113
Warnings
29
Watches
12
Advisories
16
Busiest month
June35 alerts
Busiest day
June 1, 201811 alerts

Over time

By month

Warning verification

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

Musselshell County, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings15753%1878%24 min
Flash flood warnings00

Each office's whole area, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Billings, MT: tornado warnings220%560%23 min
NWS Billings, MT: severe thunderstorm warnings1768452%21373%23 min
NWS Billings, MT: flash flood warnings8625%786%44 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 9, 4:11 AM MSTWinter Storm WatchBYZ11 hr
Jan 9, 2:49 PM MSTWinter Storm WarningBYZ28 hr
Jan 11, 3:54 AM MSTWinter Weather AdvisoryBYZ41 hr
Jan 14, 1:54 PM MSTSpecial Weather StatementBYZ81 min
Jan 14, 3:29 PM MSTSpecial Weather StatementBYZ106 min
Jan 14, 6:57 PM MSTSpecial Weather StatementBYZ18 min
Jan 14, 7:19 PM MSTSpecial Weather StatementBYZ3 hr
Jan 31, 2:01 PM MSTSpecial Weather StatementBYZ119 min
Jan 31, 3:49 PM MSTSpecial Weather StatementBYZ116 min
Feb 2, 2:51 PM MSTWinter Storm WatchBYZ13 hr
Feb 2, 2:51 PM MSTWinter Storm WarningBYZ3 days
Feb 2, 2:51 PM MSTWinter Weather AdvisoryBYZ13 hr
Feb 4, 3:16 PM MSTWinter Weather AdvisoryBYZ30 hr
Feb 6, 3:39 PM MSTWinter Storm WatchBYZ35 hr
Feb 7, 3:33 PM MSTWinter Storm WarningBYZ42 hr
Feb 7, 3:33 PM MSTWinter Weather AdvisoryBYZ42 hr
Feb 9, 2:55 PM MSTWind Chill AdvisoryBYZ21 hr
Feb 14, 2:33 PM MSTWinter Weather AdvisoryBYZ24 hr
Feb 16, 9:26 PM MSTSpecial Weather StatementBYZ2 hr
Feb 17, 2:56 AM MSTWinter Weather AdvisoryBYZ66 hr
Feb 17, 9:42 PM MSTSpecial Weather StatementBYZ3 hr
Feb 19, 3:05 PM MSTWind Chill AdvisoryBYZ21 hr
Mar 2, 3:18 AM MSTWinter Storm WatchBYZ48 hr
Mar 3, 3:07 AM MSTWinter Storm WarningBYZ3 days
Mar 9, 6:13 PM MSTSpecial Weather StatementBYZ62 min
Mar 9, 7:01 PM MSTSpecial Weather StatementBYZ59 min
Mar 15, 2:37 AM MDTWinter Weather AdvisoryBYZ41 hr
Mar 17, 2:37 PM MDTAreal Flood WarningBYZ8 days
Mar 25, 9:56 AM MDTAreal Flood WarningBYZ36 hr
Mar 31, 2:52 PM MDTWinter Storm WatchBYZ24 hr
Apr 1, 3:30 AM MDTWinter Storm WarningBYZ50 hr
Apr 4, 2:23 AM MDTWinter Weather AdvisoryBYZ61 hr
Apr 10, 2:58 PM MDTWinter Storm WatchBYZ36 hr
Apr 11, 3:15 PM MDTWinter Storm WarningBYZ48 hr
May 7, 2:49 PM MDTMesoscale DiscussionSPC116 min
May 17, 3:00 PM MDTSpecial Weather StatementTFX30 min
May 17, 4:01 PM MDTSpecial Weather StatementBYZ29 min
May 17, 4:25 PM MDTSevere Thunderstorm WarningBYZ50 min
May 17, 5:12 PM MDTAreal Flood AdvisoryBYZ3 hr
May 17, 5:18 PM MDTSevere Thunderstorm WarningBYZ19 min
May 17, 5:51 PM MDTSpecial Weather StatementBYZ39 min
May 21, 6:49 PM MDTSpecial Weather StatementBYZ41 min
May 21, 6:57 PM MDTSevere Thunderstorm WarningBYZ33 min
May 21, 8:11 PM MDTSpecial Weather StatementBYZ49 min
May 22, 12:40 PM MDTFlood WatchBYZ35 hr
May 26, 2:21 PM MDTMesoscale DiscussionSPC114 min
May 31, 1:50 PM MDTSevere Thunderstorm WatchSPC8 hr
May 31, 4:28 PM MDTSevere Thunderstorm WarningBYZ62 min
May 31, 5:20 PM MDTSevere Thunderstorm WarningBYZ55 min
May 31, 5:27 PM MDTMesoscale DiscussionSPC93 min
May 31, 6:14 PM MDTSevere Thunderstorm WarningBYZ61 min
May 31, 6:34 PM MDTAreal Flood WarningBYZ9 hr
May 31, 7:03 PM MDTSevere Thunderstorm WarningBYZ42 min
May 31, 7:10 PM MDTSevere Thunderstorm WarningBYZ65 min
May 31, 7:27 PM MDTSevere Thunderstorm WarningBYZ46 min
May 31, 8:18 PM MDTMesoscale DiscussionSPC57 min
May 31, 8:27 PM MDTSpecial Weather StatementBYZ48 min
May 31, 8:41 PM MDTSevere Thunderstorm WarningBYZ64 min
May 31, 10:42 PM MDTSpecial Weather StatementBYZ48 min
May 31, 11:51 PM MDTSpecial Weather StatementBYZ39 min
Jun 1, 12:27 AM MDTSpecial Weather StatementBYZ48 min
Jun 4, 1:47 PM MDTMesoscale DiscussionSPC118 min
Jun 4, 4:55 PM MDTSevere Thunderstorm WarningBYZ35 min
Jun 4, 5:28 PM MDTSevere Thunderstorm WarningBYZ32 min
Jun 4, 5:57 PM MDTSevere Thunderstorm WarningBYZ33 min
Jun 4, 6:14 PM MDTMesoscale DiscussionSPC3 hr
Jun 4, 6:29 PM MDTSpecial Weather StatementBYZ46 min
Jun 4, 7:02 PM MDTSevere Thunderstorm WarningBYZ34 min
Jun 7, 10:01 AM MDTSpecial Weather StatementBYZ44 min
Jun 7, 10:24 AM MDTMesoscale DiscussionSPC66 min
Jun 7, 10:41 AM MDTSpecial Weather StatementBYZ34 min
Jun 7, 10:08 PM MDTSpecial Weather StatementBYZ52 min
Jun 20, 11:43 AM MDTRiver Flood WarningBYZ72 hr
Jun 20, 11:43 AM MDTRiver Flood WarningBYZ48 hr
Jun 21, 2:28 PM MDTMesoscale DiscussionSPC92 min
Jun 21, 5:17 PM MDTSpecial Weather StatementBYZ28 min
Jun 21, 5:42 PM MDTSevere Thunderstorm WarningBYZ28 min
Jun 21, 6:17 PM MDTSpecial Weather StatementBYZ58 min
Jun 22, 2:22 PM MDTAreal Flood AdvisoryBYZ3 hr
Jun 23, 3:33 PM MDTSpecial Weather StatementBYZ42 min
Jun 23, 4:07 PM MDTSpecial Weather StatementBYZ38 min
Jun 25, 5:29 PM MDTMesoscale DiscussionSPC3 hr
Jun 25, 11:35 PM MDTSpecial Weather StatementTFX40 min
Jun 28, 3:49 PM MDTSpecial Weather StatementBYZ41 min
Jun 28, 7:15 PM MDTSpecial Weather StatementBYZ30 min
Jul 3, 5:46 PM MDTSpecial Weather StatementBYZ59 min
Jul 10, 1:50 PM MDTMesoscale DiscussionSPC115 min
Jul 10, 2:14 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 10, 3:43 PM MDTSpecial Weather StatementBYZ62 min
Jul 10, 4:28 PM MDTMesoscale DiscussionSPC2 hr
Jul 10, 4:37 PM MDTSpecial Weather StatementBYZ53 min
Jul 10, 6:32 PM MDTMesoscale DiscussionSPC118 min
Jul 17, 4:23 PM MDTSpecial Weather StatementBYZ37 min
Jul 21, 7:35 PM MDTSpecial Weather StatementBYZ25 min
Jul 21, 8:06 PM MDTSpecial Weather StatementBYZ54 min
Jul 26, 1:10 PM MDTMesoscale DiscussionSPC3 hr
Aug 9, 3:51 AM MDTExcessive Heat WarningBYZ4 days
Aug 9, 2:50 PM MDTFire Weather WatchBYZ37 hr
Aug 11, 3:28 AM MDTRed Flag WarningBYZ42 hr
Aug 17, 10:30 PM MDTSpecial Weather StatementBYZ60 min
Aug 24, 4:33 PM MDTSpecial Weather StatementBYZ27 min
Sep 6, 4:04 PM MDTSpecial Weather StatementTFX41 min
Sep 6, 5:03 PM MDTSpecial Weather StatementBYZ42 min
Sep 23, 8:04 AM MDTSpecial Weather StatementBYZ4 hr
Nov 7, 9:31 AM MSTWinter Weather AdvisoryBYZ13 hr
Nov 10, 5:12 AM MSTSpecial Weather StatementBYZ93 min
Nov 15, 2:33 PM MSTWinter Weather AdvisoryBYZ38 hr
Nov 25, 4:48 AM MSTSpecial Weather StatementBYZ5 hr
Nov 29, 3:13 AM MSTWinter Storm WatchBYZ24 hr
Nov 30, 3:33 AM MSTWinter Weather AdvisoryBYZ48 hr
Dec 17, 1:46 PM MSTHigh Wind WarningBYZ50 hr
Dec 18, 2:36 AM MSTHigh Wind WatchBYZ18 hr
Dec 25, 3:17 AM MSTWinter Weather AdvisoryBYZ38 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 archive20172019

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.