Alert archive / Georgia

Weather alerts in Chattooga County, Georgia

3,103 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Chattooga County and its neighbors

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

Alerts
3,103
Warnings
811
Watches
643
Advisories
539
Busiest year
2009170 alerts
Average year
80over 39 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, 88% of tornado reports in Chattooga County fell inside a tornado warning issued on average 16 minutes before, and 70% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200810100%0
20095260%4100%11 min
20103167%1100%41 min
20113233%0
201310100%0
201510100%0
201710100%0
20203233%2100%14 min
202420100%0
20257186%10%
Share of tornado reports inside a tornado warning, by year.

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200812742%786%22 min
2009241442%956%38 min
201010550%650%13 min
2011171418%1457%26 min
201212742%757%14 min
20136517%933%17 min
20149722%475%18 min
20157443%838%21 min
20163233%1100%19 min
20179811%2070%9 min
201813128%3974%20 min
2019151127%2264%17 min
2020211624%875%11 min
202110370%5100%31 min
2022110%0
2023231535%2889%20 min
2024181044%2070%19 min
2025201810%3949%31 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200810100%10%
20095340%2100%134 min
201110100%0
201210100%0
20132150%2100%174 min
20142150%0
201530100%0
2017220%4100%67 min
20182150%10%
20203233%250%83 min
20215420%3385%412 min
20226350%35100%367 min
202320100%0
2024220%333%37 min
2025110%20%

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 21, 1:44 AM EDTSevere Thunderstorm WarningFFC23 min
Aug 21, 1:15 AM EDTSevere Thunderstorm WarningFFC45 min
Aug 21, 12:53 AM EDTSevere Thunderstorm WarningFFC37 min
Aug 17, 8:28 PM EDTSevere Thunderstorm WarningFFC47 min
Aug 1, 7:33 PM EDTSevere Thunderstorm WarningFFC15 min
Jul 19, 4:44 PM EDTSevere Thunderstorm WarningFFC46 min
Jul 5, 3:29 PM EDTSevere Thunderstorm WarningFFC46 min
Jul 3, 4:20 PM EDTSevere Thunderstorm WarningFFC40 min
Jul 3, 3:46 PM EDTSevere Thunderstorm WarningFFC29 min
Jul 1, 8:39 PM EDTExtreme Heat WarningFFC23 hr
Jun 8, 8:43 PM EDTFlash Flood WarningFFC117 min
Apr 18, 8:41 PM EDTRed Flag WarningFFC23 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.