Alert archive / Montana

Weather alerts in Toole County, Montana

1,431 weather alerts since 1986, 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 since 1986. Tap one for its archive.

Alerts
1,431
Warnings
533
Watches
299
Advisories
169
Busiest year
2025151 alerts
Average year
38over 38 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

Warning verification

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

From 2008 to 2025, of tornado reports in Toole County fell inside a tornado warning, and 100% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
201210100%0
201510100%0

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200814657%3100%38 min
20093233%367%10 min
20107357%0
2011220%333%2 min
2012221055%633%27 min
201312650%1233%20 min
2015110%30%
2016440%667%16 min
20176517%1479%9 min
20183167%10%
201950100%0
20202150%0
20219456%2100%18 min
2022211243%1675%18 min
202330100%10%
202416850%367%26 min
202510730%540%38 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200910100%0
201310100%0
2018110%1100%129 min
202310100%0

Years from 2008, the first full year of storm-based warnings. The year still running is on its own page.

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.

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Sep 25, 2:54 AM MDTHigh Wind WarningTFX33 hr
Sep 2, 4:26 PM MDTSevere Thunderstorm Warning Considerable damage threatTFX79 min
Sep 2, 4:13 PM MDTSevere Thunderstorm Warning Considerable damage threatTFX62 min
Sep 2, 3:22 PM MDTSevere Thunderstorm Warning Considerable damage threatTFX53 min
Jul 31, 12:06 PM MDTHigh Wind WarningTFX48 hr
Jul 31, 11:01 AM MDTRed Flag WarningTFX64 hr
Jul 23, 1:57 PM MDTRed Flag WarningTFX55 hr
Jul 18, 6:38 PM MDTSevere Thunderstorm WarningTFX37 min
Jul 18, 5:48 PM MDTSevere Thunderstorm WarningTFX57 min
Jul 18, 5:30 PM MDTSevere Thunderstorm WarningTFX60 min
Jun 28, 10:31 AM MDTHigh Wind WarningTFX15 hr
Jun 16, 12:13 AM MDTHigh Wind WarningTFX21 hr

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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.