Alert archive / Montana

Mesoscale Discussions in Montana

1,861 mesoscale discussions 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 mesoscale discussions reaches back to 2003.

Mesoscale Discussions by county

Each county as a circle sized by its count since 1986. Tap one for its archive.

Mesoscale Discussions
1,861
Busiest year
2013119 mesoscale discussions
Average year
78over 24 years on file

Over time

By year

Mesoscale discussions are counted from 2003.

By month of the year

By county

Every county with at least one alert. A county page lists each alert that covered it.

16 more counties

The latest mesoscale discussions

The most recent on file, newest first.

IssuedProductOfficeCountiesLasted
Sep 23, 2:48 PM MDTMesoscale DiscussionSPCWibaux117 min
Sep 7, 12:58 PM MDTMesoscale DiscussionSPCDawson, Garfield, McCone, Musselshell, Petroleum, Prairie and 4 more2 hr
Sep 6, 11:49 PM MDTMesoscale DiscussionSPCPhillips86 min
Sep 6, 10:02 PM MDTMesoscale DiscussionSPCBlaine, Phillips58 min
Sep 6, 7:41 PM MDTMesoscale DiscussionSPCBlaine, Judith Basin2 hr
Sep 6, 4:16 PM MDTMesoscale DiscussionSPCBroadwater, Cascade, Deer Lodge, Golden Valley, Granite, Jefferson and 6 more119 min
Sep 2, 11:44 PM MDTMesoscale DiscussionSPCDaniels, Dawson, Richland, Roosevelt, Sheridan2 hr
Sep 2, 2:48 PM MDTMesoscale DiscussionSPCCascade, Chouteau, Hill, Lewis and Clark, Liberty, Pondera and 2 more117 min
Sep 2, 11:49 AM MDTMesoscale DiscussionSPCBlaine, Broadwater, Cascade, Chouteau, Deer Lodge, Flathead and 15 more2 hr
Aug 30, 2:49 PM MDTMesoscale DiscussionSPCCarter, Fallon116 min
Aug 30, 12:33 PM MDTMesoscale DiscussionSPCCarter, Custer, Dawson, Fallon, Powder River, Prairie and 4 more2 hr
Aug 27, 6:03 PM MDTMesoscale DiscussionSPCBroadwater, Carbon, Cascade, Chouteau, Fergus, Gallatin and 18 more57 min

Nearby

Alerts in force nowTornadoes on recordThe radar archive

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.