Alert archive / Tennessee / Crockett County

Weather alerts in Crockett County, Tennessee, 2021

126 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Crockett County and its neighbors

Each county as a circle sized by its count in 2021. Tap one for its archive.

Alerts
126
Warnings
28
Watches
21
Advisories
39
Busiest month
February22 alerts
Busiest day
December 11, 20217 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

1 of 1 tornado warnings covering Crockett County in 2021 had a tornado report inside them.

Crockett County, 2021

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings110%0
Severe thunderstorm warnings11555%333%51 min
Flash flood warnings00

Each office's whole area, 2021

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Memphis, TN: tornado warnings833558%6289%22 min
NWS Memphis, TN: severe thunderstorm warnings22311150%32672%22 min
NWS Memphis, TN: flash flood warnings925639%11186%108 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

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.

IssuedProductOfficeLasted
Jan 1, 9:44 AM CSTRiver Flood WarningMEG11 hr
Jan 22, 1:58 AM CSTDense Fog AdvisoryMEG6 hr
Jan 24, 6:14 PM CSTDense Fog AdvisoryMEG12 hr
Jan 25, 7:59 PM CSTDense Fog AdvisoryMEG13 hr
Feb 9, 4:01 AM CSTWinter Storm WatchMEG33 hr
Feb 9, 2:54 PM CSTIce Storm WarningMEG45 hr
Feb 10, 10:36 PM CSTMesoscale DiscussionSPC5 hr
Feb 11, 4:02 AM CSTMesoscale DiscussionSPC5 hr
Feb 12, 12:40 AM CSTWinter Weather AdvisoryMEG5 hr
Feb 12, 3:17 PM CSTWinter Storm WatchMEG24 hr
Feb 13, 2:53 PM CSTWind Chill AdvisoryMEG21 hr
Feb 13, 2:53 PM CSTWinter Storm WarningMEG54 hr
Feb 15, 5:57 AM CSTMesoscale DiscussionSPC6 hr
Feb 15, 3:02 PM CSTWind Chill AdvisoryMEG21 hr
Feb 15, 8:48 PM CSTWinter Storm WatchMEG19 hr
Feb 16, 4:15 AM CSTWinter Storm WarningMEG53 hr
Feb 17, 3:22 PM CSTMesoscale DiscussionSPC4 hr
Feb 18, 9:07 AM CSTWinter Weather AdvisoryMEG6 hr
Feb 18, 2:54 PM CSTWind Chill AdvisoryMEG18 hr
Feb 27, 2:55 AM CSTFlood WatchMEG56 hr
Feb 27, 12:18 PM CSTRiver Flood WarningMEG11 days
Feb 27, 6:06 PM CSTMesoscale DiscussionSPC2 hr
Feb 27, 9:03 PM CSTDense Fog AdvisoryMEG7 hr
Feb 28, 1:01 PM CSTMesoscale DiscussionSPC119 min
Feb 28, 2:22 PM CSTTornado WatchSPC8 hr
Feb 28, 4:40 PM CSTMesoscale DiscussionSPC95 min
Feb 28, 6:27 PM CSTMesoscale DiscussionSPC93 min
Feb 28, 8:09 PM CSTAreal Flood WarningMEG6 hr
Feb 28, 8:21 PM CSTAreal Flood AdvisoryMEG6 hr
Mar 17, 12:59 PM CDTTornado WatchSPC6 hr
Mar 17, 5:26 PM CDTRiver Flood WarningMEG15 hr
Mar 22, 8:52 PM CDTWind AdvisoryMEG19 hr
Mar 25, 5:52 PM CDTMesoscale DiscussionSPC83 min
Mar 27, 2:44 AM CDTFlash Flood WatchMEG24 hr
Mar 27, 11:29 AM CDTRiver Flood WarningMEG14 days
Mar 27, 11:55 AM CDTMesoscale DiscussionSPC3 hr
Mar 27, 1:51 PM CDTTornado WatchSPC7 hr
Mar 27, 3:42 PM CDTMesoscale DiscussionSPC93 min
Mar 27, 6:42 PM CDTMesoscale DiscussionSPC2 hr
Mar 27, 7:35 PM CDTSevere Thunderstorm WarningMEG40 min
Mar 27, 9:01 PM CDTTornado WatchSPC7 hr
Mar 27, 9:20 PM CDTSevere Thunderstorm WarningMEG40 min
Mar 27, 9:58 PM CDTSevere Thunderstorm WarningMEG47 min
Mar 31, 5:31 AM CDTFreeze WatchMEG9 hr
Mar 31, 5:31 AM CDTFreeze WarningMEG27 hr
Mar 31, 2:34 PM CDTFreeze WarningMEG42 hr
Apr 1, 2:06 PM CDTFreeze WarningMEG43 hr
Apr 7, 5:12 PM CDTMesoscale DiscussionSPC2 hr
Apr 9, 3:42 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 9, 5:34 PM CDTSevere Thunderstorm WarningMEG41 min
Apr 9, 6:08 PM CDTSevere Thunderstorm WarningMEG52 min
Apr 9, 6:56 PM CDTSevere Thunderstorm WarningMEG15 min
Apr 9, 7:41 PM CDTAreal Flood AdvisoryMEG2 hr
Apr 19, 7:12 AM CDTDense Fog AdvisoryMEG108 min
Apr 21, 3:02 AM CDTFrost AdvisoryMEG30 hr
Apr 21, 3:19 PM CDTFreeze WarningMEG18 hr
Apr 25, 3:00 AM CDTDense Fog AdvisoryMEG6 hr
Apr 29, 5:32 AM CDTSpecial Weather StatementMEG28 min
Apr 29, 11:12 PM CDTDense Fog AdvisoryMEG10 hr
May 4, 1:06 AM CDTMesoscale DiscussionSPC114 min
May 4, 1:41 AM CDTSevere Thunderstorm WatchSPC6 hr
May 4, 3:28 AM CDTSevere Thunderstorm WarningMEG47 min
May 4, 3:46 AM CDTSpecial Weather StatementMEG44 min
May 4, 4:17 AM CDTMesoscale DiscussionSPC88 min
May 4, 11:40 AM CDTRiver Flood WarningMEG7 days
May 6, 10:05 AM CDTMesoscale DiscussionSPC85 min
May 6, 12:02 PM CDTMesoscale DiscussionSPC118 min
May 6, 12:38 PM CDTSevere Thunderstorm WatchSPC5 hr
May 6, 2:45 PM CDTMesoscale DiscussionSPC90 min
May 6, 3:39 PM CDTSpecial Weather StatementMEG36 min
May 8, 3:13 PM CDTWind AdvisoryMEG26 hr
May 9, 9:20 AM CDTSpecial Weather StatementMEG25 min
May 9, 12:14 PM CDTMesoscale DiscussionSPC91 min
May 9, 2:27 PM CDTSevere Thunderstorm WatchSPC7 hr
May 9, 5:48 PM CDTMesoscale DiscussionSPC87 min
May 26, 9:11 PM CDTDense Fog AdvisoryMEG12 hr
May 27, 5:21 PM CDTMesoscale DiscussionSPC114 min
Jun 21, 11:35 AM CDTMesoscale DiscussionSPC85 min
Jul 1, 7:46 PM CDTRiver Flood WarningMEG10 hr
Jul 11, 12:24 AM CDTSevere Thunderstorm WarningMEG51 min
Jul 11, 1:13 AM CDTSpecial Weather StatementMEG32 min
Jul 24, 4:51 AM CDTDense Fog AdvisoryMEG3 hr
Jul 24, 2:24 PM CDTHeat AdvisoryMEG29 hr
Jul 26, 2:36 PM CDTHeat AdvisoryMEG28 hr
Jul 26, 5:05 PM CDTSpecial Weather StatementMEG25 min
Jul 28, 2:38 PM CDTHeat AdvisoryMEG29 hr
Jul 29, 2:51 PM CDTHeat AdvisoryMEG29 hr
Jul 30, 2:41 AM CDTHeat AdvisoryMEG41 hr
Jul 31, 9:26 PM CDTSevere Thunderstorm WarningMEG49 min
Jul 31, 9:58 PM CDTSpecial Weather StatementMEG32 min
Jul 31, 10:15 PM CDTMesoscale DiscussionSPC2 hr
Aug 8, 2:21 PM CDTHeat AdvisoryMEG4 days
Aug 13, 12:24 PM CDTMesoscale DiscussionSPC2 hr
Aug 13, 12:59 PM CDTAreal Flood AdvisoryMEG2 hr
Aug 13, 1:47 PM CDTAreal Flood AdvisoryMEG3 hr
Aug 13, 10:13 PM CDTDense Fog AdvisoryMEG10 hr
Aug 16, 4:00 AM CDTDense Fog AdvisoryMEG5 hr
Aug 28, 2:42 PM CDTFlash Flood WatchMEG66 hr
Sep 16, 6:34 AM CDTDense Fog AdvisoryMEG2 hr
Sep 18, 6:24 AM CDTFlash Flood WatchMEG56 hr
Oct 6, 10:39 PM CDTDense Fog AdvisoryMEG10 hr
Oct 15, 12:28 PM CDTSevere Thunderstorm WatchSPC9 hr
Oct 15, 2:52 PM CDTMesoscale DiscussionSPC113 min
Oct 15, 5:56 PM CDTSevere Thunderstorm WarningMEG49 min
Oct 17, 3:00 PM CDTFrost AdvisoryMEG18 hr
Nov 2, 4:02 AM CDTFreeze WatchMEG23 hr
Nov 3, 3:26 AM CDTFreeze WatchMEG24 hr
Nov 3, 3:26 AM CDTFreeze WarningMEG30 hr
Nov 4, 3:14 AM CDTFreeze WarningMEG30 hr
Nov 10, 6:12 AM CSTDense Fog AdvisoryMEG2 hr
Dec 2, 3:02 AM CSTDense Fog AdvisoryMEG6 hr
Dec 5, 5:05 PM CSTMesoscale DiscussionSPC2 hr
Dec 6, 3:01 AM CSTMesoscale DiscussionSPC59 min
Dec 6, 4:25 AM CSTAreal Flood AdvisoryMEG2 hr
Dec 10, 3:07 PM CSTTornado WatchSPC11 hr
Dec 10, 4:45 PM CSTMesoscale DiscussionSPC90 min
Dec 10, 6:22 PM CSTMesoscale DiscussionSPC53 min
Dec 10, 9:40 PM CSTMesoscale DiscussionSPC2 hr
Dec 10, 10:09 PM CSTMesoscale DiscussionSPC96 min
Dec 10, 10:27 PM CSTTornado WarningMEG48 min
Dec 10, 10:44 PM CSTTornado WatchSPC6 hr
Dec 11, 12:57 AM CSTSevere Thunderstorm WarningMEG48 min
Dec 11, 6:56 AM CSTWind AdvisoryMEG5 hr
Dec 25, 9:40 PM CSTDense Fog AdvisoryMEG14 hr
Dec 29, 9:47 PM CSTDense Fog AdvisoryMEG14 hr
Dec 30, 7:57 PM CSTDense Fog AdvisoryMEG13 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe 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.