Snow Advisories in Montana
280 snow 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 snow advisories reaches back to 2005.
Snow Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Snow Advisories
- 280
- Busiest year
- 200799 snow advisories
- Average year
- 70over 4 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.
- Missoula County116
- Granite County104
- Sanders County89
- Lake County88
- Ravalli County85
- Flathead County82
- Powell County78
- Mineral County55
- Lincoln County49
- Deer Lodge County37
- Silver Bow County37
- Stillwater County33
- Carbon County29
- Sweet Grass County28
- Golden Valley County24
- Park County23
- Rosebud County23
- Wheatland County21
- Musselshell County18
- Treasure County18
- Big Horn County17
- Powder River County16
- Carter County14
- Custer County13
- Petroleum County13
- Phillips County13
- Garfield County11
- Fallon County10
- Prairie County10
- Richland County10
- Valley County10
- Wibaux County10
- Dawson County9
- McCone County9
- Roosevelt County7
- Daniels County6
- Sheridan County5
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.