Alert archive / Montana / Park County

Weather alerts in Park County, Montana, 2015

83 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Park County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts
83
Warnings
22
Watches
13
Advisories
27
Busiest month
January12 alerts
Busiest day
June 1, 20156 alerts

Over time

By month

Warning verification

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

Park County, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings050%
Flash flood warnings00

Each office's whole area, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Glasgow, MT: tornado warnings010%
NWS Glasgow, MT: severe thunderstorm warnings653940%8672%24 min
NWS Glasgow, MT: flash flood warnings30100%40%
NWS Missoula, MT: severe thunderstorm warnings19858%1867%14 min
NWS Missoula, MT: flash flood warnings10100%30%
NWS Great Falls, MT: tornado warnings60100%0
NWS Great Falls, MT: severe thunderstorm warnings20670%3926%23 min
NWS Great Falls, MT: flash flood warnings10100%10%
NWS Billings, MT: tornado warnings30100%0
NWS Billings, MT: severe thunderstorm warnings915836%16971%23 min
NWS Billings, MT: flash flood warnings11555%3057%50 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 1, 2:55 PM MSTWind AdvisoryBYZ31 hr
Jan 2, 4:12 AM MSTWinter Weather AdvisoryBYZ31 hr
Jan 3, 2:57 PM MSTWinter Storm WatchBYZ13 hr
Jan 3, 2:57 PM MSTWinter Weather AdvisoryBYZ4 days
Jan 4, 4:21 AM MSTWinter Storm WarningBYZ71 hr
Jan 4, 4:28 AM MSTWind AdvisoryBYZ11 hr
Jan 4, 3:12 PM MSTHigh Wind WarningBYZ19 hr
Jan 6, 2:11 AM MSTWind AdvisoryBYZ7 hr
Jan 10, 3:11 PM MSTWinter Weather AdvisoryBYZ24 hr
Jan 14, 9:16 AM MSTSpecial Weather StatementBYZ4 hr
Jan 15, 3:01 AM MSTWind AdvisoryBYZ3 days
Jan 23, 3:20 AM MSTWind AdvisoryBYZ66 hr
Feb 5, 3:08 AM MSTWind AdvisoryBYZ42 hr
Feb 6, 3:40 AM MSTHigh Wind WarningBYZ40 hr
Feb 19, 3:25 AM MSTWinter Storm WatchBYZ11 hr
Feb 19, 2:41 PM MSTWinter Storm WarningBYZ49 hr
Feb 20, 3:44 PM MSTWinter Weather AdvisoryBYZ24 hr
Mar 1, 4:02 AM MSTWinter Storm WatchBYZ24 hr
Mar 2, 3:43 AM MSTWinter Storm WarningBYZ32 hr
Mar 13, 2:25 PM MDTRed Flag WarningBYZ30 hr
Mar 14, 3:25 AM MDTWind AdvisoryBYZ41 hr
Mar 24, 3:41 AM MDTWinter Storm WarningBYZ24 hr
Mar 27, 3:17 AM MDTFire Weather WatchBYZ9 hr
Mar 27, 12:45 PM MDTRed Flag WarningBYZ32 hr
Mar 30, 3:42 AM MDTFire Weather WatchBYZ9 hr
Mar 30, 12:30 PM MDTRed Flag WarningBYZ56 hr
Apr 5, 6:49 PM MDTSpecial Weather StatementBYZ116 min
Apr 5, 8:11 PM MDTWinter Weather AdvisoryBYZ14 hr
Apr 11, 4:03 AM MDTRed Flag WarningBYZ40 hr
Apr 13, 4:01 AM MDTFire Weather WatchBYZ10 hr
Apr 13, 2:20 PM MDTRed Flag WarningBYZ31 hr
Apr 14, 4:20 AM MDTWinter Weather AdvisoryBYZ50 hr
May 15, 3:07 PM MDTWinter Storm WarningBYZ35 hr
May 30, 2:00 PM MDTMesoscale DiscussionSPC2 hr
May 31, 4:23 PM MDTMesoscale DiscussionSPC97 min
May 31, 7:25 PM MDTSpecial Weather StatementBYZ50 min
Jun 1, 12:48 PM MDTMesoscale DiscussionSPC117 min
Jun 1, 1:46 PM MDTMesoscale DiscussionSPC89 min
Jun 1, 2:19 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 1, 4:20 PM MDTSpecial Weather StatementBYZ40 min
Jun 1, 4:31 PM MDTMesoscale DiscussionSPC59 min
Jun 5, 4:02 PM MDTSevere Thunderstorm WatchSPC8 hr
Jun 9, 3:29 PM MDTSpecial Weather StatementBYZ5 hr
Jun 16, 11:23 AM MDTMesoscale DiscussionSPC2 hr
Jun 18, 3:57 PM MDTMesoscale DiscussionSPC3 hr
Jun 19, 2:04 PM MDTMesoscale DiscussionSPC116 min
Jun 29, 5:30 PM MDTSpecial Weather StatementBYZ60 min
Jul 21, 2:08 PM MDTSpecial Weather StatementBYZ52 min
Jul 21, 3:47 PM MDTSpecial Weather StatementBYZ58 min
Aug 5, 3:10 PM MDTSpecial Weather StatementBYZ50 min
Aug 12, 8:57 PM MDTSpecial Weather StatementBYZ63 min
Aug 14, 5:41 PM MDTSpecial Weather StatementBYZ64 min
Aug 21, 4:15 PM MDTSpecial Weather StatementBYZ60 min
Aug 28, 3:27 AM MDTFire Weather WatchBYZ11 hr
Aug 28, 2:56 PM MDTRed Flag WarningBYZ56 hr
Sep 1, 3:10 AM MDTRed Flag WarningBYZ42 hr
Sep 13, 3:42 AM MDTRed Flag WarningBYZ17 hr
Sep 14, 9:26 PM MDTSpecial Weather StatementBYZ49 min
Sep 24, 3:34 AM MDTFire Weather WatchBYZ24 hr
Oct 10, 2:43 PM MDTWind AdvisoryBYZ30 hr
Oct 11, 3:14 AM MDTRed Flag WarningBYZ17 hr
Oct 30, 3:10 AM MDTWind AdvisoryBYZ52 hr
Nov 2, 1:19 PM MSTWinter Storm WarningBYZ38 hr
Nov 3, 8:45 AM MSTWinter Weather AdvisoryBYZ19 hr
Nov 7, 2:48 AM MSTWind AdvisoryBYZ27 hr
Nov 11, 3:13 AM MSTWind AdvisoryBYZ17 hr
Nov 12, 2:50 AM MSTWind AdvisoryBYZ61 hr
Nov 16, 3:53 AM MSTHigh Wind WatchBYZ24 hr
Nov 17, 3:39 AM MSTHigh Wind WarningBYZ39 hr
Nov 19, 4:58 AM MSTWinter Weather AdvisoryBYZ34 hr
Nov 23, 3:27 AM MSTWinter Storm WatchBYZ12 hr
Nov 23, 2:57 PM MSTWinter Storm WarningBYZ57 hr
Nov 23, 2:57 PM MSTWinter Weather AdvisoryBYZ66 hr
Dec 4, 2:57 AM MSTWind AdvisoryBYZ8 hr
Dec 5, 2:40 AM MSTWind AdvisoryBYZ4 days
Dec 8, 11:14 PM MSTHigh Wind WarningBYZ19 hr
Dec 12, 2:06 PM MSTWinter Storm WatchBYZ49 hr
Dec 12, 8:36 PM MSTWind AdvisoryBYZ15 hr
Dec 13, 1:49 PM MSTWinter Storm WarningBYZ56 hr
Dec 17, 10:49 PM MSTWinter Weather AdvisoryBYZ16 hr
Dec 18, 7:57 AM MSTBlizzard WarningBYZ7 hr
Dec 18, 2:31 PM MSTWind AdvisoryBYZ13 hr
Dec 20, 9:36 PM MSTWind AdvisoryBYZ5 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 archive20142016

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.