Alert archive / Tennessee

Weather alerts in Stewart County, Tennessee

3,158 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Stewart County and its neighbors

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

Alerts
3,158
Warnings
863
Watches
535
Advisories
687
Busiest year
2011183 alerts
Average year
85over 37 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, 82% of tornado reports in Stewart County fell inside a tornado warning issued on average 24 minutes before, and 76% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20083233%0
20096267%0
201020100%10%
201110280%2100%12 min
201210100%0
201320100%0
20142150%0
201710100%0
20182150%0
20217271%6100%32 min
20232150%250%2 min
202430100%0
202550100%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
2008130100%10%
200923865%1070%24 min
201018667%580%18 min
2011251540%1573%25 min
2012361656%875%21 min
201314936%580%21 min
20147443%10%
201550100%0
201619953%1283%23 min
201713838%757%14 min
201817759%9100%12 min
201912467%475%21 min
2020161319%8100%25 min
202112118%1369%21 min
202210460%333%5 min
202312467%7100%28 min
202419953%9100%22 min
2025261158%1191%24 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20092150%1100%154 min
20104175%10%
201111464%250%15 min
20133233%4100%197 min
2016330%4100%179 min
2017220%2100%36 min
2019110%0
2020110%0
2021330%475%61 min
2023220%771%51 min
20246350%2100%9 min
202512467%1100%583 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, 1:23 AM CDTSevere Thunderstorm Warning Considerable damage threatOHX67 min
Aug 20, 12:43 AM CDTSevere Thunderstorm Warning Considerable damage threatOHX47 min
Aug 14, 10:49 AM CDTExtreme Heat WarningOHX56 hr
Aug 8, 1:24 PM CDTFlash Flood WarningOHX3 hr
Jul 26, 10:32 PM CDTExtreme Heat WarningOHX45 hr
Jul 26, 8:48 PM CDTSevere Thunderstorm WarningOHX42 min
Jul 26, 8:12 PM CDTSevere Thunderstorm WarningOHX63 min
Jul 21, 7:21 PM CDTSevere Thunderstorm WarningOHX39 min
Jul 2, 6:13 PM CDTSevere Thunderstorm WarningOHX42 min
Jul 2, 5:18 PM CDTSevere Thunderstorm WarningOHX57 min
Jul 2, 4:43 PM CDTSevere Thunderstorm WarningOHX47 min
Jun 28, 11:51 AM CDTExtreme Heat WarningOHX5 days

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.