Excessive Heat Warnings in Montana
18 excessive heat warnings since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of excessive heat warnings reaches back to 2005.
Excessive Heat Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Excessive Heat Warnings
- 18
- Busiest year
- 202111 excessive heat warnings
- Average year
- 6over 3 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
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Custer County7
- Dawson County7
- McCone County7
- Prairie County7
- Richland County7
- Roosevelt County7
- Rosebud County7
- Treasure County7
- Wibaux County7
- Big Horn County6
- Garfield County6
- Petroleum County6
- Phillips County6
- Powder River County6
- Sheridan County6
- Valley County6
- Carter County5
- Daniels County5
- Fallon County5
- Musselshell County5
- Carbon County5
- Yellowstone County5
- Golden Valley County3
- Stillwater County3
- Flathead County2
- Lincoln County2
- Mineral County2
- Missoula County2
- Sanders County2
- Park County1
- Sweet Grass County1
- Wheatland County1
Nearby
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.