Weather alerts in Montana, 2017
2,066 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 2,066
- Warnings
- 373
- Watches
- 143
- Advisories
- 402
- Busiest month
- July479 alerts
- Busiest day
- July 10, 2017108 alerts
Over time
By month
The alerts
2,066 alerts are too many to list on one page. Narrow it to a product above, to a month in the chart, or to a county.
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Phillips County218
- Valley County184
- Missoula County166
- Powell County165
- Stillwater County154
- Garfield County151
- McCone County149
- Granite County139
- Lake County139
- Petroleum County139
- Ravalli County134
- Sweet Grass County132
- Flathead County121
- Sanders County121
- Deer Lodge County116
- Silver Bow County116
- Park County115
- Sheridan County109
- Carbon County107
- Roosevelt County105
- Lewis and Clark County104
- Richland County101
- Jefferson County100
- Cascade County100
- Daniels County93
- Big Horn County92
- Carter County90
- Dawson County89
- Wibaux County84
- Rosebud County84
- Mineral County83
- Powder River County78
- Treasure County78
- Prairie County77
- Golden Valley County77
- Hill County77
- Fallon County76
- Broadwater County76
- Musselshell County75
- Wheatland County75
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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. Rebuilt daily.