Weather alerts in Montana, 2021
2,188 weather alerts in 2021, 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 2021. Tap one for its archive.
- Alerts
- 2,188
- Warnings
- 425
- Watches
- 168
- Advisories
- 382
- Busiest month
- July594 alerts
- Busiest day
- June 10, 202186 alerts
Over time
By month
The alerts
2,188 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 County228
- Valley County218
- Garfield County203
- McCone County193
- Petroleum County188
- Missoula County161
- Roosevelt County148
- Powell County148
- Granite County138
- Wibaux County137
- Lake County136
- Richland County134
- Sweet Grass County133
- Flathead County132
- Dawson County130
- Silver Bow County129
- Stillwater County128
- Rosebud County121
- Sheridan County120
- Daniels County119
- Fergus County116
- Big Horn County115
- Madison County115
- Yellowstone County114
- Cascade County113
- Park County112
- Prairie County112
- Ravalli County112
- Golden Valley County108
- Deer Lodge County108
- Carter County108
- Jefferson County108
- Wheatland County104
- Judith Basin County104
- Lewis and Clark County101
- Musselshell County101
- Carbon County101
- Sanders County100
- Gallatin County100
- Teton County97
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.