Heat Advisories in Montana
102 heat advisories 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 heat advisories reaches back to 2005.
Heat Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Heat Advisories
- 102
- Busiest year
- 202219 heat advisories
- Average year
- 8over 13 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.
- Garfield County34
- Prairie County33
- Phillips County33
- Valley County32
- Dawson County31
- McCone County31
- Petroleum County31
- Roosevelt County30
- Richland County29
- Wibaux County28
- Sheridan County21
- Carbon County20
- Daniels County19
- Big Horn County19
- Rosebud County19
- Treasure County19
- Yellowstone County19
- Powder River County18
- Flathead County17
- Missoula County17
- Sanders County17
- Custer County17
- Musselshell County17
- Mineral County16
- Lake County15
- Lincoln County15
- Ravalli County15
- Carter County14
- Fallon County13
- Stillwater County12
- Golden Valley County11
- Park County10
- Sweet Grass County10
- Wheatland County10
- Blaine County8
- Hill County8
- Cascade County6
- Chouteau County6
- Fergus County6
- Granite County5
The latest heat advisories
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 12:06 PM MDT | Heat Advisory | TFX | Beaverhead, Blaine, Broadwater, Cascade, Fergus, Gallatin and 10 more | 39 hr |
| Jul 29, 12:33 AM MDT | Heat Advisory | GGW | Dawson, McCone, Prairie, Richland, Roosevelt, Wibaux | 18 hr |
| Jul 23, 12:52 PM MDT | Heat Advisory | BYZ | Big Horn, Carbon, Custer, Golden Valley, Musselshell, Park and 7 more | 4 days |
| Jul 23, 12:51 PM MDT | Heat Advisory | TFX | Beaverhead, Blaine, Broadwater, Cascade, Chouteau, Fergus and 12 more | 3 days |
| Jul 23, 12:50 PM MDT | Heat Advisory | GGW | Phillips, Valley | 12 hr |
| Jul 12, 11:05 PM MDT | Heat Advisory | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 4 more | 49 hr |
| Jul 9, 12:28 PM MDT | Heat Advisory | TFX | Blaine, Broadwater, Cascade, Chouteau, Fergus, Gallatin and 9 more | 4 days |
| May 25, 11:45 PM MDT | Heat Advisory | TFX | Blaine, Hill | 45 hr |
| May 25, 9:44 PM MDT | Heat Advisory | GGW | Daniels, Dawson, Garfield, McCone, Phillips, Prairie and 5 more | 4 days |
| May 24, 10:03 PM MDT | Heat Advisory | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 47 hr |
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.