Alert archive / South Carolina / Colleton County

Weather alerts in Colleton County, South Carolina, 2025

145 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Colleton County and its neighbors

Each county as a circle sized by its count in 2025. Tap one for its archive.

Alerts
145
Warnings
33
Watches
14
Advisories
46
Busiest month
June32 alerts
Busiest day
June 8, 20259 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 Colleton County in 2025 had a tornado report inside them.

Colleton County, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings231630%5074%29 min
Flash flood warnings20100%10%

Each office's whole area, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Charleston, SC: tornado warnings7186%1100%1 min
NWS Charleston, SC: severe thunderstorm warnings1075053%24365%27 min
NWS Charleston, SC: flash flood warnings311939%11186%56 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 8, 2:52 PM ESTCold Weather AdvisoryCHS18 hr
Jan 10, 2:43 AM ESTWinter Weather AdvisoryCHS13 hr
Jan 19, 2:54 PM ESTWinter Storm WatchCHS24 hr
Jan 19, 2:57 PM ESTCold Weather AdvisoryCHS4 days
Jan 20, 2:34 PM ESTWinter Storm WarningCHS43 hr
Jan 21, 9:01 PM ESTMesoscale DiscussionSPC5 hr
Jan 23, 2:49 PM ESTCold Weather AdvisoryCHS18 hr
Feb 2, 2:22 PM ESTDense Fog AdvisoryCHS19 hr
Feb 3, 9:02 AM ESTDense Fog AdvisoryCHS3 hr
Feb 8, 3:13 AM ESTDense Fog AdvisoryCHS7 hr
Feb 11, 8:50 PM ESTDense Fog AdvisoryCHS12 hr
Feb 12, 6:45 PM ESTDense Fog AdvisoryCHS8 hr
Feb 15, 3:15 PM ESTWind AdvisoryCHS27 hr
Feb 16, 7:33 AM ESTSevere Thunderstorm WatchSPC5 hr
Feb 16, 8:46 AM ESTSpecial Weather StatementCHS29 min
Feb 16, 8:48 AM ESTMesoscale DiscussionSPC117 min
Feb 16, 9:14 AM ESTSpecial Weather StatementCHS91 min
Feb 20, 3:03 AM ESTCold Weather AdvisoryCHS31 hr
Mar 1, 3:29 AM ESTRed Flag WarningCHS17 hr
Mar 1, 3:14 PM ESTFreeze WatchCHS24 hr
Mar 2, 2:45 PM ESTFreeze WarningCHS17 hr
Mar 4, 2:19 PM ESTWind AdvisoryCHS24 hr
Mar 5, 7:22 AM ESTMesoscale DiscussionSPC2 hr
Mar 5, 7:47 AM ESTTornado WatchSPC7 hr
Mar 6, 3:32 AM ESTFrost AdvisoryCHS28 hr
Mar 16, 5:30 AM EDTMesoscale DiscussionSPC60 min
Mar 16, 6:12 AM EDTTornado WatchSPC8 hr
Mar 16, 9:01 AM EDTSevere Thunderstorm WarningCHS44 min
Mar 16, 9:31 AM EDTMesoscale DiscussionSPC89 min
Mar 16, 9:39 AM EDTSpecial Weather StatementCHS51 min
Mar 16, 10:14 AM EDTSpecial Weather StatementCHS31 min
Mar 16, 10:43 AM EDTSpecial Weather StatementCHS47 min
Mar 16, 4:25 PM EDTMesoscale DiscussionSPC95 min
Mar 31, 3:17 PM EDTSevere Thunderstorm WatchSPC5 hr
Mar 31, 5:26 PM EDTSpecial Weather StatementCHS49 min
Mar 31, 5:38 PM EDTSevere Thunderstorm WarningCHS54 min
Mar 31, 6:21 PM EDTSevere Thunderstorm WarningCHS54 min
Apr 1, 11:55 PM EDTDense Fog AdvisoryCHS9 hr
Apr 7, 2:39 PM EDTMesoscale DiscussionSPC96 min
Apr 23, 2:49 PM EDTSevere Thunderstorm WarningCHS56 min
Apr 23, 3:03 PM EDTSpecial Weather StatementCHS42 min
Apr 23, 3:28 PM EDTSevere Thunderstorm WarningCHS47 min
Apr 23, 4:44 PM EDTSpecial Weather StatementCHS31 min
Apr 24, 1:55 PM EDTSpecial Weather StatementCHS65 min
May 8, 1:21 PM EDTSpecial Weather StatementCHS39 min
May 9, 5:08 AM EDTSevere Thunderstorm WarningCHS67 min
May 9, 6:56 PM EDTSpecial Weather StatementCHS34 min
May 11, 2:43 AM EDTAreal Flood AdvisoryCHS3 hr
May 14, 12:23 PM EDTRiver Flood WarningCHS8 days
May 14, 12:33 PM EDTAreal Flood WarningCHS3 days
May 27, 7:13 PM EDTAreal Flood AdvisoryCHS62 min
May 27, 8:17 PM EDTAreal Flood AdvisoryCHS58 min
May 29, 12:47 PM EDTMesoscale DiscussionSPC88 min
May 29, 1:15 PM EDTSpecial Weather StatementCHS30 min
May 29, 2:04 PM EDTAreal Flood AdvisoryCHS116 min
May 29, 4:24 PM EDTSpecial Weather StatementCHS51 min
May 30, 3:50 PM EDTMesoscale DiscussionSPC85 min
May 30, 4:33 PM EDTSevere Thunderstorm WatchSPC4 hr
May 30, 6:48 PM EDTMesoscale DiscussionSPC87 min
Jun 5, 12:45 AM EDTAreal Flood AdvisoryCHS90 min
Jun 5, 5:25 PM EDTAreal Flood AdvisoryCHS2 hr
Jun 7, 8:55 PM EDTSevere Thunderstorm WarningCHS35 min
Jun 7, 9:36 PM EDTMesoscale DiscussionSPC84 min
Jun 7, 9:49 PM EDTSpecial Weather StatementCHS41 min
Jun 8, 10:09 AM EDTMesoscale DiscussionSPC2 hr
Jun 8, 11:26 AM EDTSevere Thunderstorm WatchSPC5 hr
Jun 8, 12:00 PM EDTSevere Thunderstorm WarningCHS60 min
Jun 8, 12:10 PM EDTSevere Thunderstorm WarningCHS65 min
Jun 8, 12:48 PM EDTSevere Thunderstorm WarningCHS33 min
Jun 8, 1:16 PM EDTSevere Thunderstorm WarningCHS44 min
Jun 9, 6:01 PM EDTSpecial Weather StatementCHS29 min
Jun 10, 9:26 AM EDTSevere Thunderstorm WarningCHS49 min
Jun 10, 9:31 AM EDTMesoscale DiscussionSPC119 min
Jun 10, 9:39 AM EDTSevere Thunderstorm WarningCHS51 min
Jun 10, 9:43 AM EDTTornado WarningCHS19 min
Jun 10, 10:04 AM EDTSevere Thunderstorm WarningCHS41 min
Jun 11, 6:04 PM EDTSpecial Weather StatementCHS41 min
Jun 13, 4:18 PM EDTSpecial Weather StatementCHS27 min
Jun 14, 3:31 PM EDTSpecial Weather StatementCHS29 min
Jun 15, 5:22 PM EDTSpecial Weather StatementCHS23 min
Jun 18, 6:57 PM EDTSpecial Weather StatementCHS33 min
Jun 23, 3:09 PM EDTHeat AdvisoryCHS29 hr
Jun 25, 10:26 AM EDTHeat AdvisoryCHS10 hr
Jun 25, 3:16 PM EDTSevere Thunderstorm WatchSPC11 hr
Jun 25, 8:07 PM EDTMesoscale DiscussionSPC113 min
Jun 25, 8:38 PM EDTSevere Thunderstorm WarningCHS67 min
Jun 25, 9:27 PM EDTSpecial Weather StatementCHS33 min
Jun 25, 9:33 PM EDTSevere Thunderstorm WarningCHS57 min
Jun 25, 10:04 PM EDTSevere Thunderstorm WarningCHS56 min
Jun 25, 10:26 PM EDTSevere Thunderstorm Warning Considerable damage threatCHS64 min
Jun 25, 11:17 PM EDTAreal Flood AdvisoryCHS43 min
Jul 9, 1:26 PM EDTMesoscale DiscussionSPC2 hr
Jul 9, 6:03 PM EDTSpecial Weather StatementCHS42 min
Jul 10, 2:00 PM EDTMesoscale DiscussionSPC2 hr
Jul 10, 4:20 PM EDTSpecial Weather StatementCHS40 min
Jul 11, 7:21 PM EDTSevere Thunderstorm WarningCHS45 min
Jul 14, 4:26 PM EDTSpecial Weather StatementCHS34 min
Jul 14, 5:02 PM EDTSpecial Weather StatementCHS28 min
Jul 19, 1:49 AM EDTHeat AdvisoryCHS18 hr
Jul 19, 8:04 PM EDTHeat AdvisoryCHS24 hr
Jul 20, 1:19 PM EDTHeat AdvisoryCHS31 hr
Jul 20, 3:46 PM EDTSpecial Weather StatementCHS29 min
Jul 20, 4:39 PM EDTSpecial Weather StatementCHS36 min
Jul 21, 8:18 PM EDTSevere Thunderstorm WarningCHS45 min
Jul 22, 2:55 PM EDTMesoscale DiscussionSPC2 hr
Jul 22, 2:56 PM EDTAreal Flood AdvisoryCHS2 hr
Jul 22, 3:43 PM EDTAreal Flood AdvisoryCHS3 hr
Jul 22, 4:01 PM EDTSpecial Weather StatementCHS44 min
Jul 25, 1:07 PM EDTHeat AdvisoryCHS3 days
Jul 25, 1:07 PM EDTExtreme Heat WatchCHS51 hr
Jul 26, 1:03 PM EDTExtreme Heat WarningCHS55 hr
Jul 28, 1:16 AM EDTHeat AdvisoryCHS41 hr
Jul 29, 2:50 PM EDTAreal Flood AdvisoryCHS2 hr
Jul 29, 3:19 PM EDTSpecial Weather StatementCHS26 min
Jul 30, 2:17 AM EDTAreal Flood AdvisoryCHS118 min
Jul 30, 3:12 AM EDTAreal Flood AdvisoryCHS2 hr
Jul 30, 1:20 PM EDTHeat AdvisoryCHS31 hr
Jul 31, 1:13 PM EDTHeat AdvisoryCHS29 hr
Aug 2, 7:53 PM EDTAreal Flood AdvisoryCHS2 hr
Aug 5, 3:03 PM EDTSpecial Weather StatementCHS27 min
Aug 5, 5:17 PM EDTAreal Flood AdvisoryCHS73 min
Aug 5, 5:28 PM EDTSevere Thunderstorm WarningCHS62 min
Aug 5, 5:48 PM EDTAreal Flood AdvisoryCHS3 hr
Aug 5, 6:05 PM EDTSevere Thunderstorm WarningCHS55 min
Aug 5, 7:03 PM EDTSevere Thunderstorm WarningCHS57 min
Aug 5, 8:19 PM EDTFlash Flood WarningCHS4 hr
Aug 10, 12:46 AM EDTFlood WatchCHS41 hr
Aug 11, 8:10 AM EDTSpecial Weather StatementCHS35 min
Aug 15, 2:43 PM EDTSpecial Weather StatementCHS47 min
Aug 15, 3:23 PM EDTSpecial Weather StatementCHS52 min
Aug 17, 4:21 PM EDTSpecial Weather StatementCHS24 min
Aug 21, 1:02 PM EDTFlood WatchCHS60 hr
Aug 22, 12:31 PM EDTAreal Flood AdvisoryCHS3 hr
Aug 22, 3:48 PM EDTAreal Flood AdvisoryCHS18 min
Aug 22, 4:06 PM EDTFlash Flood WarningCHS3 hr
Aug 23, 10:12 AM EDTAreal Flood AdvisoryCHS2 hr
Nov 9, 6:46 AM ESTFreeze WatchCHS5 hr
Nov 9, 12:09 PM ESTFreeze WarningCHS45 hr
Nov 9, 11:58 PM ESTCold Weather AdvisoryCHS32 hr
Nov 24, 1:09 AM ESTDense Fog AdvisoryCHS8 hr
Dec 12, 12:41 PM ESTCold Weather AdvisoryCHS69 hr
Dec 12, 12:41 PM ESTExtreme Cold WatchCHS36 hr
Dec 15, 11:32 AM ESTCold Weather AdvisoryCHS21 hr
Dec 19, 6:47 AM ESTSpecial Weather StatementCHS43 min
Dec 21, 5:57 AM ESTDense Fog AdvisoryCHS4 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 archive20242026

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.