Alert archive / Tennessee

Weather alerts in Crockett County, Tennessee

3,397 weather alerts since 1986, 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 since 1986. Tap one for its archive.

Alerts
3,397
Warnings
894
Watches
681
Advisories
831
Busiest year
2011243 alerts
Average year
89over 38 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

Warning verification

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

From 2008 to 2025, 50% of tornado reports in Crockett County fell inside a tornado warning issued on average 28 minutes before, and 72% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20085180%0
20097357%250%27 min
20104175%0
20115260%1100%29 min
201220100%0
201310100%0
201410100%0
201510100%0
2016010%
201720100%0
20203167%0
2021110%0
20222150%0
20233233%0
202410100%0
20259189%0
Share of tornado reports inside a tornado warning, by year.

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200810550%0
2009161038%3100%21 min
2010271352%0
2011462741%1354%78298 min
2012181139%367%7 min
201314657%0
201415753%333%24 min
201510370%40%
20163233%10%
201716663%20%
2018221341%20%
20197443%0
2020151220%3100%33 min
202111555%333%51 min
202211373%20%
2023141214%2100%19 min
202410100%250%11 min
2025302710%1650%19 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20086350%0
200910730%3100%132 min
201015847%7100%119 min
201116569%20%
201230100%0
20136267%10%
20146433%0
201501100%56 min
20166267%1100%125 min
20175420%475%84 min
2018220%1100%186 min
20193233%1100%157 min
2020110%0
202210100%0
2023330%1100%66 min
2024110%250%169 min
202510910%650%68 min

Years from 2008, the first full year of storm-based warnings. The year still running is on its own page.

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.

By product

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

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Aug 20, 2:34 AM CDTSevere Thunderstorm WarningMEG41 min
Aug 12, 4:06 AM CDTExtreme Heat WarningMEG5 days
Aug 8, 2:04 PM CDTFlash Flood WarningMEG3 hr
Jul 25, 11:17 AM CDTExtreme Heat WarningMEG3 days
Jul 19, 11:47 AM CDTExtreme Heat WarningMEG57 hr
Jul 11, 2:48 PM CDTSevere Thunderstorm WarningMEG42 min
Jul 11, 2:17 PM CDTSevere Thunderstorm WarningMEG43 min
Jul 3, 5:01 PM CDTSevere Thunderstorm WarningMEG44 min
Jul 1, 12:48 PM CDTExtreme Heat WarningMEG31 hr
Apr 28, 6:07 PM CDTAreal Flood WarningMEG3 hr
Apr 28, 5:11 PM CDTSevere Thunderstorm WarningMEG49 min
Apr 28, 4:35 PM CDTSevere Thunderstorm WarningMEG40 min

Nearby

Alerts in force nowTornadoes on recordForecastThe 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.