Alert archive / Montana / Toole County

Weather alerts in Toole County, Montana, 2018

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

Toole County and its neighbors

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

Alerts
52
Warnings
14
Watches
6
Advisories
3
Busiest month
July15 alerts
Busiest day
June 7, 20185 alerts

Over time

By month

Warning verification

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

Toole County, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings3167%10%
Flash flood warnings110%1100%129 min

Each office's whole area, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Great Falls, MT: tornado warnings030%
NWS Great Falls, MT: severe thunderstorm warnings511669%6745%21 min
NWS Great Falls, MT: flash flood warnings9189%617%129 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 25, 3:54 PM MSTSpecial Weather StatementTFX21 min
Feb 3, 4:04 PM MSTSpecial Weather StatementTFX116 min
Feb 3, 6:04 PM MSTSpecial Weather StatementTFX116 min
Feb 3, 8:03 PM MSTSpecial Weather StatementTFX117 min
Mar 2, 11:08 AM MSTSpecial Weather StatementTFX82 min
Mar 24, 3:21 PM MDTSpecial Weather StatementTFX54 min
Apr 5, 2:30 PM MDTSpecial Weather StatementTFX60 min
Apr 5, 3:31 PM MDTSpecial Weather StatementTFX119 min
Apr 12, 1:49 PM MDTSpecial Weather StatementTFX56 min
Apr 14, 12:13 PM MDTAreal Flood AdvisoryTFX45 hr
Apr 16, 12:06 PM MDTAreal Flood AdvisoryTFX53 hr
Apr 18, 4:49 PM MDTAreal Flood WarningTFX5 days
Jun 4, 2:35 AM MDTSpecial Weather StatementTFX55 min
Jun 7, 3:05 PM MDTSpecial Weather StatementTFX25 min
Jun 7, 3:28 PM MDTSpecial Weather StatementTFX32 min
Jun 7, 3:58 PM MDTSpecial Weather StatementTFX47 min
Jun 7, 4:28 PM MDTSevere Thunderstorm WarningTFX32 min
Jun 7, 4:58 PM MDTSevere Thunderstorm WarningTFX32 min
Jun 9, 1:06 PM MDTMesoscale DiscussionSPC114 min
Jun 9, 1:46 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 9, 4:09 PM MDTSpecial Weather StatementTFX21 min
Jun 9, 4:29 PM MDTSpecial Weather StatementTFX16 min
Jun 9, 4:53 PM MDTMesoscale DiscussionSPC97 min
Jun 20, 12:45 PM MDTAreal Flood WarningTFX44 hr
Jun 23, 3:26 PM MDTAreal Flood AdvisoryTFX27 hr
Jun 23, 3:45 PM MDTFlash Flood WarningTFX2 hr
Jul 6, 3:34 AM MDTRed Flag WarningTFX19 hr
Jul 6, 2:37 PM MDTFire Weather WatchTFX13 hr
Jul 16, 2:05 PM MDTFire Weather WatchTFX24 hr
Jul 17, 2:01 PM MDTRed Flag WarningTFX31 hr
Jul 19, 3:17 AM MDTFire Weather WatchTFX24 hr
Jul 19, 7:41 PM MDTSpecial Weather StatementTFX34 min
Jul 20, 3:40 AM MDTRed Flag WarningTFX19 hr
Jul 20, 2:00 PM MDTRed Flag WarningTFX34 hr
Jul 24, 5:04 PM MDTSpecial Weather StatementTFX41 min
Jul 24, 5:46 PM MDTSpecial Weather StatementTFX44 min
Jul 24, 6:31 PM MDTSpecial Weather StatementTFX59 min
Jul 24, 6:46 PM MDTSpecial Weather StatementTFX29 min
Jul 25, 7:46 PM MDTSevere Thunderstorm WarningTFX59 min
Jul 26, 1:26 AM MDTSpecial Weather StatementTFX34 min
Jul 31, 2:48 PM MDTFire Weather WatchTFX14 hr
Aug 1, 5:03 AM MDTRed Flag WarningTFX16 hr
Aug 1, 11:03 AM MDTRed Flag WarningTFX59 hr
Aug 8, 3:25 AM MDTFire Weather WatchTFX36 hr
Aug 9, 3:02 PM MDTRed Flag WarningTFX3 days
Aug 12, 4:43 AM MDTSpecial Weather StatementTFX47 min
Aug 23, 8:30 AM MDTRed Flag WarningTFX12 hr
Sep 20, 3:48 PM MDTSpecial Weather StatementTFX27 min
Nov 2, 5:52 PM MDTSpecial Weather StatementTFX23 min
Nov 2, 6:32 PM MDTSpecial Weather StatementTFX58 min
Dec 25, 8:16 AM MSTSpecial Weather StatementTFX119 min
Dec 25, 8:08 PM MSTSpecial Weather StatementTFX82 min

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.