Alert archive / Georgia

Weather alerts in Coweta County, Georgia

3,512 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Coweta County and its neighbors

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

Alerts
3,512
Warnings
1,131
Watches
615
Advisories
537
Busiest year
2008191 alerts
Average year
88over 40 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, 68% of tornado reports in Coweta County fell inside a tornado warning issued on average 13 minutes before, and 64% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200810100%0
20099189%2100%8 min
201010100%0
20119278%250%0 min
20122150%1100%36 min
201310100%20%
2014110%0
20152150%1100%1 min
201720100%0
201820100%0
2019110%1100%0 min
20202150%2100%12 min
20214250%3100%24 min
2023010%
20242150%10%
20256517%367%12 min
Share of tornado reports inside a tornado warning, by year.

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200824963%989%18 min
200910550%1450%28 min
201010820%757%24 min
2011291838%2886%25 min
20126350%333%12 min
2013272315%1984%25 min
2014181328%1090%25 min
2015191332%1984%21 min
2016151220%2055%10 min
2017201715%2190%27 min
201818176%3485%16 min
2019181517%1553%12 min
2020131115%3770%41 min
202110100%978%19 min
2022191521%4159%19 min
2023483429%9677%17 min
2024231822%4885%22 min
2025352723%2796%24 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2010110%1100%57 min
2011110%0
20137443%3100%91 min
20143233%20%
20154175%0
201610100%0
2017010%
20182150%4100%33 min
20193233%0
20205260%0
20212150%250%245 min
2023220%0
20246433%0

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
Sep 19, 7:28 PM EDTSevere Thunderstorm WarningFFC47 min
Sep 5, 7:12 PM EDTSevere Thunderstorm WarningFFC48 min
Aug 11, 4:49 PM EDTFlash Flood WarningFFC3 hr
Aug 6, 5:14 PM EDTSevere Thunderstorm WarningFFC31 min
Jul 3, 3:31 PM EDTSevere Thunderstorm WarningFFC29 min
Jul 3, 2:47 PM EDTSevere Thunderstorm WarningFFC28 min
Jul 3, 2:21 PM EDTSevere Thunderstorm WarningFFC24 min
Jun 18, 4:18 PM EDTSevere Thunderstorm WarningFFC42 min
Jun 18, 3:51 PM EDTSevere Thunderstorm WarningFFC39 min
Apr 18, 8:41 PM EDTRed Flag WarningFFC23 hr
Mar 27, 1:54 PM EDTRed Flag WarningFFC30 hr
Mar 17, 2:05 AM EDTFreeze WarningFFC32 hr

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.