Alert archive / Georgia / Polk County

Weather alerts in Polk County, Georgia, 2020

98 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Polk County and its neighbors

Each county as a circle sized by its count in 2020. Tap one for its archive.

Alerts
98
Warnings
21
Watches
17
Advisories
21
Busiest month
February18 alerts
Busiest day
April 13, 20207 alerts

Over time

By month

Warning verification

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

0 of 1 tornado warnings covering Polk County in 2020 had a tornado report inside them.

Polk County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings11109%1464%20 min
Flash flood warnings2150%0

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Atlanta, GA: tornado warnings601968%4657%10 min
NWS Atlanta, GA: severe thunderstorm warnings34423133%1,03965%18 min
NWS Atlanta, GA: flash flood warnings743651%20967%137 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 3, 5:40 AM ESTMesoscale DiscussionSPC3 hr
Jan 10, 2:47 PM ESTWind AdvisoryFFC31 hr
Jan 11, 1:20 PM ESTMesoscale DiscussionSPC85 min
Jan 11, 1:42 PM ESTTornado WatchSPC7 hr
Jan 11, 3:53 PM ESTSevere Thunderstorm WarningFFC52 min
Jan 11, 4:16 PM ESTMesoscale DiscussionSPC89 min
Jan 11, 4:19 PM ESTSevere Thunderstorm WarningFFC41 min
Jan 13, 10:12 AM ESTFlash Flood WatchFFC36 hr
Jan 15, 5:11 AM ESTDense Fog AdvisoryFFC5 hr
Feb 4, 2:59 PM ESTFlash Flood WatchFFC56 hr
Feb 6, 4:27 AM ESTTornado WatchSPC9 hr
Feb 6, 5:07 AM ESTSpecial Weather StatementFFC23 min
Feb 6, 6:05 AM ESTSpecial Weather StatementFFC40 min
Feb 6, 8:02 AM ESTFlash Flood WarningFFC6 hr
Feb 6, 10:41 AM ESTRiver Flood WarningFFC21 days
Feb 6, 1:57 PM ESTAreal Flood WarningFFC4 hr
Feb 7, 3:47 PM ESTWinter Weather AdvisoryFFC28 hr
Feb 9, 12:54 AM ESTFreezing Fog AdvisoryFFC8 hr
Feb 9, 3:08 AM ESTFlood WatchFFC33 hr
Feb 9, 9:10 AM ESTFreezing Fog AdvisoryFFC50 min
Feb 10, 11:41 AM ESTFlash Flood WatchFFC23 hr
Feb 12, 3:43 AM ESTFlash Flood WatchFFC33 hr
Feb 13, 4:51 AM ESTSpecial Weather StatementFFC24 min
Feb 13, 5:14 AM ESTSpecial Weather StatementFFC46 min
Feb 13, 6:16 AM ESTSpecial Weather StatementFFC119 min
Feb 17, 12:38 AM ESTDense Fog AdvisoryFFC10 hr
Feb 18, 11:58 AM ESTFlash Flood WatchFFC16 hr
Mar 5, 3:06 PM ESTWind AdvisoryFFC28 hr
Mar 18, 4:37 AM EDTDense Fog AdvisoryFFC6 hr
Mar 24, 2:41 AM EDTDense Fog AdvisoryFFC7 hr
Mar 24, 8:05 PM EDTMesoscale DiscussionSPC55 min
Mar 24, 8:44 PM EDTTornado WatchSPC3 hr
Mar 24, 10:45 PM EDTMesoscale DiscussionSPC60 min
Mar 24, 10:55 PM EDTSevere Thunderstorm WarningFFC50 min
Apr 8, 3:29 PM EDTWind AdvisoryFFC29 hr
Apr 9, 4:11 AM EDTSpecial Weather StatementFFC34 min
Apr 9, 3:08 PM EDTRed Flag WarningFFC29 hr
Apr 10, 3:57 PM EDTFrost AdvisoryFFC17 hr
Apr 11, 11:23 PM EDTWind AdvisoryFFC35 hr
Apr 12, 7:10 PM EDTMesoscale DiscussionSPC65 min
Apr 12, 7:22 PM EDTTornado WatchSPC5 hr
Apr 12, 8:41 PM EDTMesoscale DiscussionSPC64 min
Apr 12, 11:17 PM EDTMesoscale DiscussionSPC88 min
Apr 12, 11:28 PM EDTMesoscale DiscussionSPC92 min
Apr 12, 11:45 PM EDTTornado WatchSPC8 hr
Apr 13, 12:04 AM EDTSevere Thunderstorm WarningFFC56 min
Apr 13, 12:54 AM EDTSevere Thunderstorm WarningFFC81 min
Apr 13, 5:42 AM EDTRiver Flood WarningFFC4 hr
Apr 18, 3:57 PM EDTFlash Flood WatchFFC40 hr
Apr 26, 3:49 AM EDTWind AdvisoryFFC17 hr
May 6, 3:39 AM EDTWind AdvisoryFFC17 hr
May 9, 3:37 AM EDTFrost AdvisoryFFC28 hr
Jun 5, 10:53 AM EDTMesoscale DiscussionSPC2 hr
Jun 14, 6:13 PM EDTMesoscale DiscussionSPC92 min
Jun 14, 6:27 PM EDTSpecial Weather StatementFFC33 min
Jun 14, 6:47 PM EDTSpecial Weather StatementFFC28 min
Jun 14, 7:15 PM EDTSevere Thunderstorm WarningFFC45 min
Jun 21, 3:49 PM EDTSpecial Weather StatementFFC41 min
Jun 21, 4:09 PM EDTSevere Thunderstorm WarningFFC18 min
Jun 22, 5:21 PM EDTSpecial Weather StatementFFC24 min
Jun 22, 5:43 PM EDTSpecial Weather StatementFFC32 min
Jun 25, 11:58 PM EDTSpecial Weather StatementFFC47 min
Jul 4, 5:09 PM EDTSpecial Weather StatementFFC36 min
Jul 4, 5:44 PM EDTSevere Thunderstorm WarningFFC46 min
Jul 18, 4:26 PM EDTSpecial Weather StatementFFC34 min
Jul 20, 9:16 PM EDTSpecial Weather StatementFFC29 min
Jul 20, 9:45 PM EDTSpecial Weather StatementFFC30 min
Jul 20, 10:15 PM EDTSpecial Weather StatementFFC15 min
Jul 22, 8:42 PM EDTSevere Thunderstorm WarningFFC33 min
Jul 25, 4:34 PM EDTSpecial Weather StatementFFC26 min
Jul 25, 5:12 PM EDTSpecial Weather StatementFFC33 min
Jul 25, 5:36 PM EDTSevere Thunderstorm WarningFFC39 min
Jul 27, 5:41 PM EDTSpecial Weather StatementFFC34 min
Aug 3, 12:42 PM EDTMesoscale DiscussionSPC2 hr
Aug 6, 2:08 PM EDTMesoscale DiscussionSPC3 hr
Aug 10, 2:17 PM EDTMesoscale DiscussionSPC118 min
Aug 10, 4:01 PM EDTSpecial Weather StatementFFC44 min
Aug 12, 1:13 PM EDTSpecial Weather StatementFFC32 min
Aug 25, 2:23 PM EDTFlash Flood WarningFFC2 hr
Aug 30, 6:36 PM EDTSpecial Weather StatementFFC24 min
Sep 15, 3:24 PM EDTFlash Flood WatchFFC47 hr
Sep 26, 3:30 AM EDTDense Fog AdvisoryFFC7 hr
Oct 10, 1:47 PM EDTTornado WatchSPC7 hr
Oct 10, 6:26 PM EDTSpecial Weather StatementFFC34 min
Oct 10, 6:44 PM EDTSevere Thunderstorm WarningFFC31 min
Oct 10, 6:55 PM EDTTornado WarningFFC35 min
Oct 26, 11:04 AM EDTFlash Flood WatchFFC68 hr
Oct 27, 5:09 PM EDTTropical Storm WatchFFC18 hr
Oct 28, 11:04 AM EDTTropical Storm WarningFFC24 hr
Oct 29, 3:44 AM EDTSpecial Weather StatementFFC31 min
Oct 29, 7:43 PM EDTWind AdvisoryFFC8 hr
Nov 1, 2:54 AM ESTFreeze WarningFFC30 hr
Nov 2, 2:17 PM ESTFrost AdvisoryFFC19 hr
Nov 17, 4:09 AM ESTFreeze WatchFFC8 hr
Nov 17, 12:15 PM ESTFreeze WarningFFC20 hr
Nov 30, 3:55 AM ESTWind AdvisoryFFC9 hr
Dec 12, 10:38 PM ESTDense Fog AdvisoryFFC10 hr
Dec 31, 6:22 AM ESTDense Fog AdvisoryFFC5 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 archive20192021

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.