Alert archive / Minnesota / Mesoscale Discussions / 2021

Mesoscale Discussions in Minnesota, September 2021

9 mesoscale discussions in September 2021. 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 in September 2021. Tap one for its archive.

Mesoscale Discussions
9
Busiest day
September 20, 20213 mesoscale discussions

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Sep 7, 2:40 AM CDTMesoscale DiscussionSPCChisago, Isanti3 hr
Sep 11, 11:20 PM CDTMesoscale DiscussionSPCOlmsted, Wabasha, Winona115 min
Sep 16, 3:47 PM CDTMesoscale DiscussionSPCAitkin, Anoka, Benton, Carlton, Carver, Cass and 25 more118 min
Sep 16, 6:23 PM CDTMesoscale DiscussionSPCChippewa, Cottonwood, Jackson, Kandiyohi, Lac qui Parle, Lincoln and 13 more97 min
Sep 16, 8:53 PM CDTMesoscale DiscussionSPCAnoka, Benton, Blue Earth, Brown, Carlton, Carver and 22 more2 hr
Sep 17, 12:53 AM CDTMesoscale DiscussionSPCBlue Earth, Brown, Carver, Cottonwood, Dakota, Faribault and 18 more67 min
Sep 20, 12:38 PM CDTMesoscale DiscussionSPCDodge, Fillmore, Freeborn, Goodhue, Houston, Mower and 4 more2 hr
Sep 20, 3:55 PM CDTMesoscale DiscussionSPCChisago, Dakota, Dodge, Fillmore, Freeborn, Goodhue and 10 more95 min
Sep 20, 5:52 PM CDTMesoscale DiscussionSPCFillmore, Houston, Winona113 min

By county

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

27 more counties

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. Warning verification from the Mesonet's Cow. Rebuilt daily.