Alert archive / Georgia / Chatham County

Weather alerts in Chatham County, Georgia, 2022

91 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Chatham County and its neighbors

Each county as a circle sized by its count in 2022. Tap one for its archive.

Alerts
91
Warnings
18
Watches
10
Advisories
18
Busiest month
August20 alerts
Busiest day
August 21, 20228 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 Chatham County in 2022 had a tornado report inside them.

Chatham County, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings110%0
Severe thunderstorm warnings16850%2138%15 min
Flash flood warnings00

Each office's whole area, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Charleston, SC: tornado warnings16850%3379%27 min
NWS Charleston, SC: severe thunderstorm warnings1307542%38970%21 min
NWS Charleston, SC: flash flood warnings7443%1362%356 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 2, 5:01 PM ESTTornado WatchSPC5 hr
Jan 2, 6:52 PM ESTMesoscale DiscussionSPC113 min
Jan 2, 9:26 PM ESTMesoscale DiscussionSPC64 min
Jan 2, 9:53 PM ESTTornado WatchSPC5 hr
Jan 3, 12:17 AM ESTMesoscale DiscussionSPC118 min
Mar 16, 11:19 AM EDTMesoscale DiscussionSPC116 min
Mar 16, 11:38 AM EDTSpecial Weather StatementCHS37 min
Mar 18, 4:18 PM EDTSpecial Weather StatementCHS42 min
Mar 19, 3:05 PM EDTMesoscale DiscussionSPC115 min
Apr 5, 2:50 PM EDTMesoscale DiscussionSPC115 min
Apr 5, 3:15 PM EDTTornado WatchSPC6 hr
Apr 5, 5:21 PM EDTSevere Thunderstorm WarningCHS54 min
Apr 5, 5:26 PM EDTTornado Warning Tornado observedCHS49 min
Apr 5, 6:41 PM EDTSevere Thunderstorm WarningCHS49 min
Apr 5, 6:59 PM EDTSpecial Weather StatementCHS31 min
Apr 6, 12:58 PM EDTMesoscale DiscussionSPC2 hr
Apr 6, 4:02 PM EDTMesoscale DiscussionSPC88 min
Apr 6, 4:21 PM EDTTornado WatchSPC8 hr
Apr 6, 8:34 PM EDTMesoscale DiscussionSPC116 min
Apr 6, 10:13 PM EDTSpecial Weather StatementCHS47 min
Apr 17, 6:03 PM EDTRiver Flood WarningCHS21 days
Apr 17, 7:35 PM EDTSpecial Weather StatementCHS10 min
Apr 17, 8:43 PM EDTSpecial Weather StatementCHS32 min
Apr 17, 9:22 PM EDTSpecial Weather StatementCHS23 min
May 6, 3:22 PM EDTMesoscale DiscussionSPC113 min
May 6, 3:47 PM EDTSevere Thunderstorm WatchSPC6 hr
May 22, 2:35 PM EDTSpecial Weather StatementCHS10 min
May 22, 3:28 PM EDTAreal Flood AdvisoryCHS81 min
May 22, 4:04 PM EDTMesoscale DiscussionSPC86 min
May 23, 2:29 PM EDTMesoscale DiscussionSPC61 min
May 23, 3:15 PM EDTSevere Thunderstorm WatchSPC6 hr
May 23, 6:06 PM EDTSevere Thunderstorm WarningCHS54 min
Jun 3, 3:13 PM EDTSpecial Weather StatementCHS32 min
Jun 4, 1:29 PM EDTAreal Flood AdvisoryCHS91 min
Jun 8, 1:59 PM EDTSpecial Weather StatementCHS31 min
Jun 9, 2:21 PM EDTMesoscale DiscussionSPC114 min
Jun 9, 4:32 PM EDTSpecial Weather StatementCHS43 min
Jun 9, 4:38 PM EDTSevere Thunderstorm WarningCHS67 min
Jun 9, 5:08 PM EDTSevere Thunderstorm WarningCHS37 min
Jun 9, 5:12 PM EDTAreal Flood AdvisoryCHS71 min
Jun 14, 12:17 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 14, 1:56 PM EDTSevere Thunderstorm WarningCHS64 min
Jun 14, 2:19 PM EDTSpecial Weather StatementCHS41 min
Jun 14, 2:31 PM EDTSevere Thunderstorm WarningCHS59 min
Jun 17, 6:39 PM EDTSevere Thunderstorm WatchSPC5 hr
Jun 17, 9:27 PM EDTSevere Thunderstorm WarningCHS48 min
Jun 17, 10:04 PM EDTSevere Thunderstorm WarningCHS56 min
Jun 29, 2:47 PM EDTAreal Flood AdvisoryCHS45 min
Jul 9, 5:18 PM EDTSpecial Weather StatementCHS42 min
Jul 10, 3:59 PM EDTAreal Flood AdvisoryCHS47 min
Jul 11, 5:32 PM EDTAreal Flood AdvisoryCHS3 hr
Jul 11, 6:30 PM EDTAreal Flood AdvisoryCHS88 min
Jul 12, 5:21 PM EDTSpecial Weather StatementCHS24 min
Jul 12, 5:47 PM EDTSpecial Weather StatementCHS43 min
Jul 13, 1:57 PM EDTMesoscale DiscussionSPC63 min
Jul 14, 5:25 PM EDTSevere Thunderstorm WarningCHS65 min
Jul 14, 6:16 PM EDTAreal Flood AdvisoryCHS2 hr
Jul 24, 3:58 PM EDTSevere Thunderstorm WarningCHS47 min
Jul 24, 4:32 PM EDTSevere Thunderstorm WarningCHS58 min
Jul 24, 4:58 PM EDTSevere Thunderstorm WarningCHS62 min
Aug 3, 12:43 PM EDTSpecial Weather StatementCHS32 min
Aug 3, 1:08 PM EDTSpecial Weather StatementCHS37 min
Aug 7, 8:44 AM EDTAreal Flood AdvisoryCHS91 min
Aug 11, 3:54 PM EDTAreal Flood AdvisoryCHS64 min
Aug 11, 4:24 PM EDTSpecial Weather StatementCHS36 min
Aug 19, 4:42 PM EDTMesoscale DiscussionSPC2 hr
Aug 19, 6:18 PM EDTSevere Thunderstorm WarningCHS57 min
Aug 21, 4:15 PM EDTSpecial Weather StatementCHS45 min
Aug 21, 4:45 PM EDTSevere Thunderstorm WarningCHS45 min
Aug 21, 5:29 PM EDTSevere Thunderstorm WarningCHS61 min
Aug 21, 5:30 PM EDTSpecial Weather StatementCHS45 min
Aug 21, 5:47 PM EDTAreal Flood AdvisoryCHS88 min
Aug 21, 6:10 PM EDTSpecial Weather StatementCHS50 min
Aug 21, 6:13 PM EDTAreal Flood AdvisoryCHS71 min
Aug 21, 7:13 PM EDTAreal Flood AdvisoryCHS2 hr
Aug 22, 6:42 PM EDTAreal Flood AdvisoryCHS3 hr
Aug 22, 6:58 PM EDTSpecial Weather StatementCHS47 min
Aug 22, 7:12 PM EDTAreal Flood AdvisoryCHS2 hr
Aug 25, 7:50 AM EDTAreal Flood AdvisoryCHS55 min
Aug 30, 1:44 AM EDTAreal Flood AdvisoryCHS2 hr
Sep 1, 5:32 PM EDTAreal Flood AdvisoryCHS53 min
Sep 2, 9:07 PM EDTSpecial Weather StatementCHS23 min
Nov 10, 12:31 PM ESTMesoscale DiscussionSPC89 min
Nov 10, 12:47 PM ESTTornado WatchSPC6 hr
Nov 10, 5:48 PM ESTMesoscale DiscussionSPC57 min
Nov 10, 6:28 PM ESTTornado WatchSPC6 hr
Nov 10, 6:45 PM ESTSpecial Weather StatementCHS30 min
Nov 10, 6:56 PM ESTSpecial Weather StatementCHS34 min
Nov 10, 8:44 PM ESTSpecial Weather StatementCHS31 min
Nov 10, 9:24 PM ESTSpecial Weather StatementCHS36 min
Nov 10, 10:43 PM ESTMesoscale DiscussionSPC2 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 archive20212023

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.