Alert archive / South Carolina / Colleton County

Weather alerts in Colleton County, South Carolina, 2016

140 weather alerts in 2016, 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 2016. Tap one for its archive.

Alerts
140
Warnings
43
Watches
15
Advisories
34
Busiest month
July34 alerts
Busiest day
June 17, 201611 alerts

Over time

By month

Warning verification

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

Colleton County, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings322716%3382%20 min
Flash flood warnings330%20%

Each office's whole area, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Charleston, SC: tornado warnings12283%520%27 min
NWS Charleston, SC: severe thunderstorm warnings1288831%33480%22 min
NWS Charleston, SC: flash flood warnings121017%5966%211 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
Feb 4, 10:27 AM ESTAreal Flood AdvisoryCHS93 min
Feb 4, 11:13 AM ESTRiver Flood WarningCHS14 days
Feb 4, 11:57 AM ESTAreal Flood AdvisoryCHS2 hr
Feb 4, 1:52 PM ESTAreal Flood AdvisoryCHS83 min
Feb 8, 4:09 PM ESTSpecial Weather StatementCHS51 min
Feb 16, 1:41 AM ESTMesoscale DiscussionSPC64 min
Feb 16, 2:44 AM ESTSpecial Weather StatementCHS46 min
Feb 16, 3:15 AM ESTSpecial Weather StatementCHS60 min
Feb 23, 4:36 PM ESTWind AdvisoryCHS27 hr
Feb 24, 6:48 AM ESTMesoscale DiscussionSPC87 min
Mar 12, 7:10 AM ESTDense Fog AdvisoryCHS2 hr
Mar 21, 1:55 PM EDTFrost AdvisoryCHS19 hr
Mar 26, 3:08 PM EDTMesoscale DiscussionSPC2 hr
Apr 1, 7:26 AM EDTTornado WatchSPC12 hr
Apr 1, 11:40 AM EDTMesoscale DiscussionSPC2 hr
Apr 1, 2:00 PM EDTMesoscale DiscussionSPC60 min
Apr 1, 2:48 PM EDTTornado WatchSPC6 hr
Apr 1, 5:40 PM EDTMesoscale DiscussionSPC65 min
Apr 8, 3:49 AM EDTFreeze WatchCHS35 hr
Apr 13, 1:12 AM EDTDense Fog AdvisoryCHS5 hr
Apr 22, 3:45 PM EDTSpecial Weather StatementCHS15 min
Apr 22, 3:55 PM EDTSpecial Weather StatementCHS35 min
Apr 22, 6:55 PM EDTSpecial Weather StatementCHS35 min
Apr 27, 6:09 PM EDTSpecial Weather StatementCHS36 min
Apr 28, 4:04 PM EDTSpecial Weather StatementCHS26 min
Apr 30, 4:00 AM EDTDense Fog AdvisoryCHS5 hr
May 3, 4:04 PM EDTSevere Thunderstorm WatchSPC8 hr
May 3, 4:05 PM EDTSevere Thunderstorm WarningCHS40 min
May 3, 5:24 PM EDTSpecial Weather StatementCHS36 min
May 3, 6:39 PM EDTMesoscale DiscussionSPC96 min
May 3, 8:14 PM EDTSevere Thunderstorm WarningCHS61 min
May 3, 9:16 PM EDTSevere Thunderstorm WarningCHS59 min
May 3, 9:21 PM EDTSpecial Weather StatementCHS54 min
May 12, 9:51 PM EDTSevere Thunderstorm WarningCHS39 min
May 29, 10:52 AM EDTAreal Flood AdvisoryCHS113 min
May 29, 12:13 PM EDTAreal Flood AdvisoryCHS2 hr
May 29, 7:24 PM EDTAreal Flood AdvisoryCHS66 min
Jun 5, 3:08 PM EDTAreal Flood AdvisoryCHS97 min
Jun 5, 3:27 PM EDTAreal Flood AdvisoryCHS93 min
Jun 5, 6:11 PM EDTSevere Thunderstorm WarningCHS64 min
Jun 5, 10:57 PM EDTFlash Flood WatchCHS30 hr
Jun 6, 8:08 PM EDTAreal Flood AdvisoryCHS3 hr
Jun 12, 4:12 PM EDTSevere Thunderstorm WarningCHS48 min
Jun 12, 4:37 PM EDTSevere Thunderstorm WarningCHS42 min
Jun 14, 3:50 AM EDTHeat AdvisoryCHS14 hr
Jun 15, 5:09 PM EDTSpecial Weather StatementCHS51 min
Jun 17, 12:59 PM EDTMesoscale DiscussionSPC2 hr
Jun 17, 1:52 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 17, 2:51 PM EDTSevere Thunderstorm WarningCHS54 min
Jun 17, 3:23 PM EDTSevere Thunderstorm WarningCHS67 min
Jun 17, 3:36 PM EDTSevere Thunderstorm WarningCHS54 min
Jun 17, 3:44 PM EDTSevere Thunderstorm WarningCHS61 min
Jun 17, 3:44 PM EDTMesoscale DiscussionSPC61 min
Jun 17, 4:08 PM EDTSevere Thunderstorm WarningCHS67 min
Jun 17, 4:27 PM EDTSevere Thunderstorm WarningCHS63 min
Jun 17, 4:29 PM EDTSevere Thunderstorm WarningCHS61 min
Jun 17, 4:50 PM EDTSevere Thunderstorm WarningCHS55 min
Jun 28, 4:59 PM EDTSpecial Weather StatementCHS61 min
Jun 28, 5:13 PM EDTSevere Thunderstorm WarningCHS62 min
Jun 28, 6:25 PM EDTAreal Flood AdvisoryCHS65 min
Jul 3, 6:20 PM EDTSpecial Weather StatementCHS40 min
Jul 3, 6:59 PM EDTSpecial Weather StatementCHS46 min
Jul 3, 7:07 PM EDTAreal Flood AdvisoryCHS83 min
Jul 4, 5:42 PM EDTSpecial Weather StatementCHS48 min
Jul 4, 5:53 PM EDTSevere Thunderstorm WarningCHS67 min
Jul 4, 6:20 PM EDTSpecial Weather StatementCHS40 min
Jul 5, 3:13 AM EDTHeat AdvisoryCHS15 hr
Jul 5, 7:06 PM EDTSpecial Weather StatementCHS39 min
Jul 6, 3:44 PM EDTMesoscale DiscussionSPC61 min
Jul 6, 4:03 PM EDTSevere Thunderstorm WatchSPC4 hr
Jul 6, 5:21 PM EDTSevere Thunderstorm WarningCHS54 min
Jul 6, 5:58 PM EDTSevere Thunderstorm WarningCHS62 min
Jul 8, 3:32 AM EDTHeat AdvisoryCHS16 hr
Jul 8, 11:52 PM EDTMesoscale DiscussionSPC53 min
Jul 9, 12:53 AM EDTSevere Thunderstorm WarningCHS52 min
Jul 9, 1:56 AM EDTSpecial Weather StatementCHS49 min
Jul 9, 3:34 AM EDTHeat AdvisoryCHS12 hr
Jul 9, 11:01 AM EDTSpecial Weather StatementCHS29 min
Jul 9, 3:52 PM EDTSevere Thunderstorm WarningCHS53 min
Jul 15, 6:34 PM EDTSpecial Weather StatementCHS26 min
Jul 19, 6:14 PM EDTAreal Flood AdvisoryCHS91 min
Jul 19, 6:32 PM EDTSevere Thunderstorm WarningCHS43 min
Jul 19, 7:16 PM EDTSpecial Weather StatementCHS29 min
Jul 19, 7:38 PM EDTSevere Thunderstorm WarningCHS52 min
Jul 19, 8:13 PM EDTSevere Thunderstorm WarningCHS34 min
Jul 20, 3:14 PM EDTSevere Thunderstorm WarningCHS61 min
Jul 20, 3:29 PM EDTSevere Thunderstorm WarningCHS61 min
Jul 20, 4:06 PM EDTSevere Thunderstorm WarningCHS54 min
Jul 20, 4:12 PM EDTSpecial Weather StatementCHS48 min
Jul 20, 5:02 PM EDTSevere Thunderstorm WarningCHS43 min
Jul 21, 2:15 PM EDTSevere Thunderstorm WarningCHS60 min
Jul 21, 3:22 PM EDTSevere Thunderstorm WarningCHS68 min
Jul 21, 4:53 PM EDTSevere Thunderstorm WarningCHS67 min
Jul 30, 8:14 PM EDTSpecial Weather StatementCHS31 min
Aug 3, 5:51 PM EDTSpecial Weather StatementCHS24 min
Aug 11, 6:46 AM EDTAreal Flood AdvisoryCHS89 min
Aug 11, 8:53 AM EDTAreal Flood AdvisoryCHS52 min
Aug 18, 5:22 PM EDTSpecial Weather StatementCHS38 min
Aug 18, 5:33 PM EDTSevere Thunderstorm WarningCHS57 min
Aug 18, 6:35 PM EDTSpecial Weather StatementCHS25 min
Aug 19, 10:20 PM EDTSpecial Weather StatementCHS25 min
Aug 31, 11:41 PM EDTTropical Storm WatchCHS6 hr
Sep 1, 2:50 AM EDTFlash Flood WatchCHS37 hr
Sep 1, 5:40 AM EDTTropical Storm WarningCHS44 hr
Sep 2, 5:05 AM EDTMesoscale DiscussionSPC2 hr
Sep 2, 7:51 AM EDTTornado WatchSPC8 hr
Sep 2, 12:10 PM EDTAreal Flood AdvisoryCHS110 min
Sep 2, 12:24 PM EDTSpecial Weather StatementCHS36 min
Sep 2, 12:55 PM EDTMesoscale DiscussionSPC2 hr
Sep 2, 1:09 PM EDTSpecial Weather StatementCHS66 min
Sep 2, 1:56 PM EDTAreal Flood AdvisoryCHS64 min
Sep 11, 5:13 PM EDTSpecial Weather StatementCHS47 min
Sep 11, 5:33 PM EDTSpecial Weather StatementCHS42 min
Sep 14, 2:36 AM EDTFlash Flood WatchCHS25 hr
Sep 14, 3:24 AM EDTAreal Flood AdvisoryCHS96 min
Sep 14, 2:29 PM EDTAreal Flood AdvisoryCHS2 hr
Sep 29, 9:41 PM EDTSpecial Weather StatementCHS49 min
Sep 29, 10:18 PM EDTSpecial Weather StatementCHS42 min
Sep 29, 10:56 PM EDTSpecial Weather StatementCHS49 min
Oct 6, 5:09 AM EDTFlash Flood WatchCHS55 hr
Oct 6, 5:48 AM EDTTropical Storm WatchCHS12 hr
Oct 6, 12:28 PM EDTTropical Storm WarningCHS50 hr
Oct 7, 3:17 PM EDTTornado WatchSPC9 hr
Oct 7, 3:50 PM EDTMesoscale DiscussionSPC55 min
Oct 7, 7:53 PM EDTFlash Flood WarningCHS14 hr
Oct 8, 12:20 AM EDTFlash Flood WarningCHS10 hr
Oct 8, 3:54 AM EDTRiver Flood WarningCHS13 days
Oct 8, 9:42 AM EDTFlash Flood WarningCHS108 min
Oct 8, 10:45 AM EDTAreal Flood WarningCHS6 hr
Oct 8, 11:27 AM EDTAreal Flood WarningCHS5 hr
Oct 12, 2:59 PM EDTAreal Flood WarningCHS46 hr
Oct 21, 4:53 AM EDTDense Fog AdvisoryCHS4 hr
Oct 30, 3:34 AM EDTDense Fog AdvisoryCHS6 hr
Nov 16, 3:19 AM ESTDense Fog AdvisoryCHS7 hr
Nov 19, 3:27 PM ESTFreeze WatchCHS24 hr
Nov 20, 3:20 PM ESTFreeze WarningCHS17 hr
Nov 25, 3:48 AM ESTDense Fog AdvisoryCHS6 hr
Dec 13, 7:04 PM ESTDense Fog AdvisoryCHS6 hr
Dec 26, 8:59 PM ESTDense Fog AdvisoryCHS14 hr
Dec 28, 12:37 AM ESTDense Fog AdvisoryCHS3 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 archive20152017

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.