Alert archive / Tennessee / Mesoscale Discussions / 2021

Mesoscale Discussions in Tennessee, December 2021

25 mesoscale discussions in December 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 December 2021. Tap one for its archive.

Mesoscale Discussions
25
Busiest day
December 11, 202110 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
Dec 5, 5:05 PM CSTMesoscale DiscussionSPCBenton, Carroll, Chester, Crockett, Decatur, Dyer and 21 more2 hr
Dec 5, 8:06 PM CSTMesoscale DiscussionSPCLake, Obion, Weakley114 min
Dec 6, 3:01 AM CSTMesoscale DiscussionSPCBenton, Carroll, Crockett, Dyer, Gibson, Haywood and 12 more59 min
Dec 6, 5:06 AM CSTMesoscale DiscussionSPCBedford, Cannon, Cheatham, Chester, Clay, Davidson and 29 more114 min
Dec 10, 1:35 PM CSTMesoscale DiscussionSPCLake2 hr
Dec 10, 4:45 PM CSTMesoscale DiscussionSPCCrockett, Dyer, Fayette, Gibson, Haywood, Lake and 6 more90 min
Dec 10, 5:17 PM CSTMesoscale DiscussionSPCChester, Fayette, Hardeman, Hardin, Henderson, McNairy and 1 more88 min
Dec 10, 5:52 PM CSTMesoscale DiscussionSPCBenton, Cheatham, Davidson, Dickson, Hickman, Houston and 9 more83 min
Dec 10, 6:22 PM CSTMesoscale DiscussionSPCCrockett, Dyer, Gibson, Haywood, Lake, Lauderdale and 3 more53 min
Dec 10, 7:41 PM CSTMesoscale DiscussionSPCDyer, Gibson, Henry, Lake, Obion, Weakley64 min
Dec 10, 8:35 PM CSTMesoscale DiscussionSPCMontgomery85 min
Dec 10, 9:40 PM CSTMesoscale DiscussionSPCBenton, Carroll, Cheatham, Chester, Crockett, Decatur and 24 more2 hr
Dec 10, 10:09 PM CSTMesoscale DiscussionSPCBenton, Carroll, Chester, Crockett, Dyer, Fayette and 14 more96 min
Dec 10, 11:36 PM CSTMesoscale DiscussionSPCCheatham, Dickson, Henry, Houston, Montgomery, Robertson and 2 more54 min
Dec 11, 2:00 AM CSTMesoscale DiscussionSPCBedford, Benton, Cannon, Carroll, Cheatham, Chester and 41 more90 min
Dec 11, 2:51 AM CSTMesoscale DiscussionSPCCheatham, Davidson, Rutherford, Williamson, Wilson84 min
Dec 11, 5:32 AM CSTMesoscale DiscussionSPCAnderson, Campbell, Claiborne, Fentress, Morgan, Pickett and 2 more88 min
Dec 11, 6:15 AM CSTMesoscale DiscussionSPCBedford, Bledsoe, Cannon, Coffee, Cumberland, DeKalb and 12 more90 min
Dec 16, 2:08 PM CSTMesoscale DiscussionSPCShelby3 hr
Dec 29, 10:44 AM CSTMesoscale DiscussionSPCChester, Fayette, Hardeman, Hardin, McNairy, Shelby2 hr
Dec 29, 2:36 PM CSTMesoscale DiscussionSPCFranklin, Giles, Lawrence, Lincoln, Marion, Marshall and 2 more2 hr
Dec 29, 3:41 PM CSTMesoscale DiscussionSPCHardeman, Hardin, McNairy64 min
Dec 29, 4:38 PM CSTMesoscale DiscussionSPCGiles, Lawrence, Lincoln, Wayne2 hr
Dec 29, 7:27 PM CSTMesoscale DiscussionSPCBledsoe, Bradley, Hamilton, McMinn, Marion, Meigs and 2 more2 hr
Dec 29, 8:44 PM CSTMesoscale DiscussionSPCPolk2 hr

By county

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

36 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.