Alert archive / Virginia / Carroll County

Weather alerts in Carroll County, Virginia, 2024

126 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Carroll County and its neighbors

Each county as a circle sized by its count in 2024. Tap one for its archive.

Alerts
126
Warnings
38
Watches
12
Advisories
38
Busiest month
July24 alerts
Busiest day
May 26, 20249 alerts

Over time

By month

Warning verification

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

Carroll County, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings15147%1242%17 min
Flash flood warnings7271%0

Each office's whole area, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Blacksburg, VA: tornado warnings72593%2326%17 min
NWS Blacksburg, VA: severe thunderstorm warnings19214823%73866%24 min
NWS Blacksburg, VA: flash flood warnings895340%21073%169 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, 2:24 PM ESTWinter Storm WatchRNK14 hr
Jan 5, 4:32 AM ESTWinter Storm WarningRNK34 hr
Jan 6, 3:28 AM ESTMesoscale DiscussionSPC6 hr
Jan 8, 4:31 AM ESTWinter Weather AdvisoryRNK31 hr
Jan 8, 2:57 PM ESTWind AdvisoryRNK46 hr
Jan 8, 3:18 PM ESTFlood WatchRNK30 hr
Jan 9, 12:49 PM ESTAreal Flood WarningRNK13 hr
Jan 9, 1:10 PM ESTSpecial Weather StatementRNK35 min
Jan 9, 1:13 PM ESTAreal Flood WarningRNK15 hr
Jan 9, 1:34 PM ESTAreal Flood WarningRNK14 hr
Jan 11, 3:51 AM ESTWind AdvisoryRNK60 hr
Jan 11, 1:08 PM ESTFlood WatchRNK31 hr
Jan 14, 3:24 AM ESTWinter Weather AdvisoryRNK52 hr
Jan 14, 2:45 PM ESTWinter Storm WarningRNK40 hr
Jan 16, 2:54 AM ESTWind Chill AdvisoryRNK33 hr
Jan 18, 3:14 AM ESTWinter Weather AdvisoryRNK55 hr
Jan 19, 2:34 PM ESTWind Chill AdvisoryRNK43 hr
Jan 26, 2:35 PM ESTFlood WatchRNK40 hr
Jan 28, 3:45 AM ESTWind AdvisoryRNK31 hr
Feb 12, 3:29 AM ESTHigh Wind WarningRNK33 hr
Feb 13, 12:15 AM ESTSpecial Weather StatementRNK45 min
Feb 27, 2:02 PM ESTWind AdvisoryRNK35 hr
Feb 28, 2:00 PM ESTSpecial Weather StatementRNK30 min
Mar 9, 2:32 AM ESTWind AdvisoryRNK56 hr
Mar 10, 1:46 AM ESTHigh Wind WarningRNK33 hr
Mar 20, 12:27 PM EDTWind AdvisoryRNK8 hr
Apr 11, 3:11 PM EDTWind AdvisoryRNK51 hr
Apr 11, 6:24 PM EDTMesoscale DiscussionSPC2 hr
Apr 11, 6:43 PM EDTTornado WatchSPC4 hr
Apr 11, 7:33 PM EDTSevere Thunderstorm WarningRNK57 min
Apr 11, 8:02 PM EDTAreal Flood AdvisoryRNK3 hr
Apr 11, 8:04 PM EDTAreal Flood AdvisoryRNK3 hr
Apr 11, 8:06 PM EDTSevere Thunderstorm WarningRNK39 min
Apr 15, 1:50 PM EDTSevere Thunderstorm WatchSPC8 hr
Apr 15, 6:57 PM EDTMesoscale DiscussionSPC93 min
Apr 19, 2:33 PM EDTMesoscale DiscussionSPC117 min
May 6, 1:30 PM EDTAreal Flood AdvisoryRNK3 hr
May 6, 1:52 PM EDTSpecial Weather StatementRNK23 min
May 6, 2:28 PM EDTFlood WatchRNK3 hr
May 6, 10:54 PM EDTSevere Thunderstorm WarningRNK66 min
May 7, 5:05 PM EDTMesoscale DiscussionSPC85 min
May 15, 12:25 AM EDTSpecial Weather StatementRNK35 min
May 15, 5:49 PM EDTAreal Flood AdvisoryRNK3 hr
May 18, 3:49 PM EDTSpecial Weather StatementRNK26 min
May 18, 3:57 PM EDTSevere Thunderstorm WarningRNK50 min
May 18, 4:40 PM EDTAreal Flood AdvisoryRNK81 min
May 22, 2:44 PM EDTSpecial Weather StatementRNK31 min
May 22, 2:52 PM EDTSevere Thunderstorm WarningRNK46 min
May 26, 1:13 PM EDTMesoscale DiscussionSPC92 min
May 26, 1:46 PM EDTSevere Thunderstorm WatchSPC9 hr
May 26, 3:25 PM EDTMesoscale DiscussionSPC95 min
May 26, 4:46 PM EDTSevere Thunderstorm WarningRNK74 min
May 26, 5:00 PM EDTMesoscale DiscussionSPC90 min
May 26, 5:35 PM EDTSevere Thunderstorm Warning Considerable damage threatRNK55 min
May 26, 5:36 PM EDTMesoscale DiscussionSPC114 min
May 26, 5:40 PM EDTSevere Thunderstorm WarningRNK65 min
May 26, 6:31 PM EDTSevere Thunderstorm WarningRNK32 min
Jul 4, 5:00 PM EDTSpecial Weather StatementRNK30 min
Jul 4, 5:28 PM EDTSevere Thunderstorm WarningRNK77 min
Jul 5, 3:09 PM EDTSpecial Weather StatementRNK36 min
Jul 5, 3:30 PM EDTFlash Flood WarningRNK3 hr
Jul 5, 5:35 PM EDTSevere Thunderstorm WarningRNK40 min
Jul 5, 6:16 PM EDTSpecial Weather StatementRNK29 min
Jul 8, 7:37 PM EDTSpecial Weather StatementRNK38 min
Jul 9, 12:11 PM EDTSpecial Weather StatementRNK64 min
Jul 16, 3:19 PM EDTMesoscale DiscussionSPC86 min
Jul 17, 4:25 PM EDTAreal Flood AdvisoryRNK73 min
Jul 17, 7:43 PM EDTSpecial Weather StatementRNK32 min
Jul 17, 8:08 PM EDTSpecial Weather StatementRNK37 min
Jul 18, 11:30 AM EDTMesoscale DiscussionSPC2 hr
Jul 19, 11:24 PM EDTAreal Flood AdvisoryRNK3 hr
Jul 19, 11:33 PM EDTFlash Flood WarningRNK4 hr
Jul 21, 3:41 AM EDTDense Fog AdvisoryRNK5 hr
Jul 21, 3:08 PM EDTSpecial Weather StatementRNK22 min
Jul 22, 1:50 PM EDTSpecial Weather StatementRNK25 min
Jul 22, 2:12 PM EDTFlash Flood WarningRNK4 hr
Jul 23, 2:48 PM EDTSpecial Weather StatementRNK57 min
Jul 23, 3:57 PM EDTMesoscale DiscussionSPC3 hr
Jul 24, 9:20 PM EDTAreal Flood AdvisoryRNK6 hr
Jul 26, 4:42 PM EDTAreal Flood AdvisoryRNK66 min
Jul 26, 5:48 PM EDTAreal Flood AdvisoryRNK77 min
Aug 2, 1:43 PM EDTMesoscale DiscussionSPC2 hr
Aug 2, 3:45 PM EDTSpecial Weather StatementRNK45 min
Aug 3, 1:02 PM EDTAreal Flood AdvisoryRNK3 hr
Aug 6, 2:04 PM EDTFlood WatchRNK62 hr
Aug 16, 5:54 PM EDTAreal Flood AdvisoryRNK3 hr
Aug 29, 7:21 PM EDTSevere Thunderstorm WarningRNK54 min
Aug 30, 2:27 PM EDTAreal Flood AdvisoryRNK2 hr
Aug 30, 2:32 PM EDTSevere Thunderstorm WarningRNK28 min
Aug 30, 2:59 PM EDTSevere Thunderstorm WarningRNK30 min
Aug 30, 4:49 PM EDTSevere Thunderstorm WarningRNK26 min
Sep 24, 1:55 PM EDTMesoscale DiscussionSPC65 min
Sep 24, 3:34 PM EDTFlood WatchRNK16 hr
Sep 25, 2:12 AM EDTFlood WatchRNK66 hr
Sep 25, 3:26 PM EDTMesoscale DiscussionSPC2 hr
Sep 26, 5:06 AM EDTAreal Flood AdvisoryRNK3 hr
Sep 26, 6:19 AM EDTFlash Flood WarningRNK6 hr
Sep 26, 7:55 AM EDTAreal Flood WarningRNK14 hr
Sep 26, 2:09 PM EDTHigh Wind WarningRNK30 hr
Sep 26, 2:09 PM EDTWind AdvisoryRNK30 hr
Sep 26, 3:53 PM EDTRiver Flood WarningRNK59 hr
Sep 26, 9:54 PM EDTAreal Flood WarningRNK24 hr
Sep 26, 10:03 PM EDTFlash Flood WarningRNK8 hr
Sep 27, 8:02 AM EDTFlash Flood Warning Considerable damage threatRNK10 hr
Sep 27, 10:11 AM EDTFlash Flood Warning EmergencyCatastrophic damage threatRNK23 hr
Sep 27, 5:00 PM EDTFlash Flood WatchRNK20 hr
Sep 28, 8:50 AM EDTAreal Flood WarningRNK4 hr
Sep 28, 1:24 PM EDTAreal Flood WarningRNK16 hr
Oct 10, 1:58 AM EDTFrost AdvisoryRNK31 hr
Oct 15, 2:30 AM EDTFreeze WarningRNK30 hr
Oct 16, 10:56 AM EDTFreeze WarningRNK22 hr
Oct 17, 1:28 PM EDTFreeze WarningRNK20 hr
Nov 20, 3:04 AM ESTWind AdvisoryRNK25 hr
Nov 21, 2:32 PM ESTWind AdvisoryRNK39 hr
Dec 4, 2:12 AM ESTWind AdvisoryRNK38 hr
Dec 10, 2:57 AM ESTDense Fog AdvisoryRNK81 min
Dec 10, 4:18 AM ESTDense Fog AdvisoryRNK6 hr
Dec 11, 3:38 AM ESTWind AdvisoryRNK21 hr
Dec 11, 4:09 AM ESTAreal Flood AdvisoryRNK10 hr
Dec 14, 4:49 AM ESTWinter Weather AdvisoryRNK38 hr
Dec 16, 8:21 PM ESTDense Fog AdvisoryRNK12 hr
Dec 18, 10:27 AM ESTSpecial Weather StatementRNK2 hr
Dec 18, 3:36 PM ESTSpecial Weather StatementRNK24 min
Dec 18, 3:58 PM ESTSpecial Weather StatementRNK32 min
Dec 29, 5:28 PM ESTSpecial Weather StatementRNK32 min
Dec 29, 6:06 PM ESTSpecial Weather StatementRNK24 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 archive20232025

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.