Alert archive / Georgia / McDuffie County

Weather alerts in McDuffie County, Georgia, 2019

99 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

McDuffie County and its neighbors

Each county as a circle sized by its count in 2019. Tap one for its archive.

Alerts
99
Warnings
18
Watches
11
Advisories
40
Busiest month
June23 alerts
Busiest day
June 22, 20199 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 McDuffie County in 2019 had a tornado report inside them.

McDuffie County, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings13128%3100%21 min
Flash flood warnings00

Each office's whole area, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Columbia, SC: tornado warnings20670%2075%14 min
NWS Columbia, SC: severe thunderstorm warnings15511426%46984%22 min
NWS Columbia, SC: flash flood warnings5340%560%53 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 4, 12:41 PM ESTLake Wind AdvisoryCAE24 hr
Jan 9, 3:41 AM ESTLake Wind AdvisoryCAE14 hr
Jan 19, 3:06 AM ESTLake Wind AdvisoryCAE39 hr
Jan 23, 10:20 PM ESTLake Wind AdvisoryCAE18 hr
Feb 11, 1:49 PM ESTLake Wind AdvisoryCAE31 hr
Feb 11, 9:00 PM ESTDense Fog AdvisoryCAE13 hr
Feb 12, 3:02 PM ESTSpecial Weather StatementCAE58 min
Feb 12, 3:46 PM ESTSpecial Weather StatementCAE89 min
Feb 12, 4:11 PM ESTSpecial Weather StatementCAE49 min
Feb 21, 12:15 AM ESTDense Fog AdvisoryCAE11 hr
Feb 22, 1:26 AM ESTDense Fog AdvisoryCAE10 hr
Feb 24, 2:27 AM ESTLake Wind AdvisoryCAE17 hr
Feb 24, 2:43 AM ESTDense Fog AdvisoryCAE5 hr
Mar 1, 4:34 AM ESTDense Smoke AdvisoryCAE13 min
Mar 1, 4:47 AM ESTDense Fog AdvisoryCAE6 hr
Mar 3, 10:20 AM ESTLake Wind AdvisoryCAE14 hr
Mar 3, 3:19 PM ESTMesoscale DiscussionSPC116 min
Mar 3, 3:35 PM ESTTornado WatchSPC7 hr
Mar 4, 2:28 PM ESTFreeze WatchCAE12 hr
Mar 5, 2:50 AM ESTFreeze WarningCAE31 hr
Mar 6, 1:42 PM ESTFreeze WarningCAE19 hr
Mar 19, 3:42 AM EDTFrost AdvisoryCAE29 hr
Mar 27, 8:14 AM EDTFrost AdvisoryCAE25 hr
Apr 8, 1:12 PM EDTMesoscale DiscussionSPC3 hr
Apr 8, 2:32 PM EDTSevere Thunderstorm WatchSPC7 hr
Apr 8, 3:03 PM EDTSpecial Weather StatementCAE57 min
Apr 8, 4:07 PM EDTSevere Thunderstorm WarningCAE53 min
Apr 13, 7:41 PM EDTLake Wind AdvisoryCAE39 hr
Apr 14, 11:48 AM EDTMesoscale DiscussionSPC117 min
Apr 14, 12:54 PM EDTTornado WatchSPC6 hr
Apr 14, 2:19 PM EDTSevere Thunderstorm WarningCAE56 min
Apr 14, 2:31 PM EDTTornado WarningCAE29 min
Apr 14, 10:19 PM EDTSpecial Weather StatementCAE56 min
Apr 18, 1:39 PM EDTLake Wind AdvisoryCAE34 hr
Apr 19, 10:06 AM EDTMesoscale DiscussionSPC84 min
Apr 19, 10:44 AM EDTTornado WatchSPC5 hr
Apr 19, 11:35 AM EDTSevere Thunderstorm WarningCAE55 min
Apr 19, 1:19 PM EDTMesoscale DiscussionSPC86 min
Apr 19, 2:59 PM EDTSpecial Weather StatementCAE46 min
Apr 20, 4:01 AM EDTLake Wind AdvisoryCAE16 hr
Apr 25, 1:35 PM EDTLake Wind AdvisoryCAE33 hr
May 2, 5:56 AM EDTDense Fog AdvisoryCAE3 hr
May 4, 3:56 AM EDTDense Fog AdvisoryCAE6 hr
May 4, 12:35 PM EDTMesoscale DiscussionSPC85 min
May 11, 6:09 PM EDTSpecial Weather StatementCAE51 min
May 11, 6:11 PM EDTMesoscale DiscussionSPC94 min
Jun 5, 12:52 PM EDTMesoscale DiscussionSPC113 min
Jun 8, 2:27 PM EDTAreal Flood AdvisoryCAE3 hr
Jun 8, 4:50 PM EDTAreal Flood AdvisoryCAE3 hr
Jun 8, 6:53 PM EDTSpecial Weather StatementCAE52 min
Jun 9, 1:45 PM EDTAreal Flood AdvisoryCAE3 hr
Jun 18, 8:48 PM EDTAreal Flood AdvisoryCAE117 min
Jun 20, 3:17 AM EDTLake Wind AdvisoryCAE18 hr
Jun 20, 12:02 PM EDTMesoscale DiscussionSPC118 min
Jun 20, 1:44 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 20, 4:09 PM EDTSevere Thunderstorm WarningCAE51 min
Jun 20, 4:47 PM EDTMesoscale DiscussionSPC88 min
Jun 20, 5:00 PM EDTSevere Thunderstorm WarningCAE30 min
Jun 21, 10:02 PM EDTMesoscale DiscussionSPC118 min
Jun 22, 2:39 AM EDTMesoscale DiscussionSPC96 min
Jun 22, 1:01 PM EDTMesoscale DiscussionSPC119 min
Jun 22, 2:08 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 22, 3:39 PM EDTSevere Thunderstorm WarningCAE51 min
Jun 22, 4:23 PM EDTSevere Thunderstorm WarningCAE52 min
Jun 22, 4:34 PM EDTSevere Thunderstorm WarningCAE41 min
Jun 22, 4:35 PM EDTMesoscale DiscussionSPC85 min
Jun 22, 5:15 PM EDTSevere Thunderstorm WarningCAE45 min
Jun 23, 4:41 PM EDTSpecial Weather StatementCAE49 min
Jun 24, 9:24 PM EDTSevere Thunderstorm WarningCAE51 min
Jul 18, 4:08 PM EDTSevere Thunderstorm WarningCAE52 min
Jul 18, 4:19 PM EDTMesoscale DiscussionSPC116 min
Aug 4, 8:14 AM EDTAreal Flood AdvisoryCAE2 hr
Aug 10, 4:03 PM EDTSpecial Weather StatementCAE27 min
Aug 19, 10:24 PM EDTAreal Flood AdvisoryCAE2 hr
Aug 23, 3:26 PM EDTSpecial Weather StatementCAE49 min
Aug 23, 8:09 PM EDTSpecial Weather StatementCAE51 min
Sep 10, 6:06 PM EDTSevere Thunderstorm WarningCAE39 min
Oct 19, 2:42 AM EDTLake Wind AdvisoryCAE23 hr
Oct 21, 5:04 AM EDTDense Fog AdvisoryCAE5 hr
Oct 31, 11:32 AM EDTLake Wind AdvisoryCAE14 hr
Oct 31, 1:25 PM EDTMesoscale DiscussionSPC2 hr
Oct 31, 3:54 PM EDTSevere Thunderstorm WatchSPC5 hr
Oct 31, 4:20 PM EDTSpecial Weather StatementCAE55 min
Oct 31, 4:43 PM EDTSevere Thunderstorm WarningCAE47 min
Nov 1, 1:53 PM EDTFrost AdvisoryCAE19 hr
Nov 7, 11:38 AM ESTFreeze WatchCAE15 hr
Nov 8, 3:03 AM ESTFreeze WarningCAE29 hr
Nov 9, 1:21 PM ESTFreeze WarningCAE20 hr
Nov 11, 1:48 PM ESTLake Wind AdvisoryCAE41 hr
Nov 15, 10:26 AM ESTLake Wind AdvisoryCAE45 hr
Nov 23, 1:04 PM ESTLake Wind AdvisoryCAE18 hr
Nov 30, 2:14 PM ESTLake Wind AdvisoryCAE53 hr
Dec 13, 2:11 PM ESTFlash Flood WatchCAE14 hr
Dec 13, 2:18 PM ESTLake Wind AdvisoryCAE35 hr
Dec 14, 1:12 AM ESTAreal Flood AdvisoryCAE2 hr
Dec 21, 2:51 PM ESTFlash Flood WatchCAE59 hr
Dec 28, 5:37 AM ESTDense Fog AdvisoryCAE2 hr
Dec 29, 4:45 AM ESTDense Fog AdvisoryCAE3 hr
Dec 30, 4:52 AM ESTSpecial Weather StatementCAE113 min

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 archive20182020

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.