Alert archive / Virginia / Hanover County

Weather alerts in Hanover County, Virginia, 2023

107 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Hanover County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts
107
Warnings
25
Watches
19
Advisories
20
Busiest month
July33 alerts
Busiest day
June 26, 20237 alerts

Over time

By month

Warning verification

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

Hanover County, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings161319%1681%28 min
Flash flood warnings5420%1100%140 min

Each office's whole area, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Wakefield, VA: tornado warnings15473%683%10 min
NWS Wakefield, VA: severe thunderstorm warnings24416532%38389%21 min
NWS Wakefield, VA: flash flood warnings835830%10695%58 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 12, 8:03 PM ESTSpecial Weather StatementAKQ57 min
Jan 12, 8:25 PM ESTSpecial Weather StatementAKQ65 min
Mar 31, 11:49 AM EDTWind AdvisoryAKQ36 hr
Apr 1, 8:04 PM EDTSevere Thunderstorm WarningAKQ26 min
Apr 6, 2:00 PM EDTMesoscale DiscussionSPC90 min
Apr 6, 2:58 PM EDTSevere Thunderstorm WatchSPC7 hr
Apr 6, 4:44 PM EDTMesoscale DiscussionSPC91 min
Apr 6, 5:39 PM EDTSpecial Weather StatementAKQ51 min
Apr 6, 6:08 PM EDTMesoscale DiscussionSPC2 hr
Apr 6, 8:27 PM EDTMesoscale DiscussionSPC93 min
Apr 9, 2:53 PM EDTFrost AdvisoryAKQ18 hr
Apr 9, 2:53 PM EDTFreeze WarningAKQ18 hr
Apr 17, 3:29 PM EDTFire Weather WatchAKQ12 hr
Apr 18, 3:20 AM EDTRed Flag WarningAKQ17 hr
Apr 22, 9:34 AM EDTMesoscale DiscussionSPC116 min
Apr 22, 10:07 AM EDTSevere Thunderstorm WatchSPC10 hr
May 13, 2:13 PM EDTMesoscale DiscussionSPC4 hr
May 16, 9:32 PM EDTSevere Thunderstorm WarningAKQ43 min
Jun 7, 5:53 PM EDTAreal Flood AdvisoryAKQ93 min
Jun 16, 1:22 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 16, 2:44 PM EDTMesoscale DiscussionSPC91 min
Jun 16, 4:49 PM EDTMesoscale DiscussionSPC56 min
Jun 16, 6:49 PM EDTMesoscale DiscussionSPC86 min
Jun 16, 6:55 PM EDTSevere Thunderstorm WarningAKQ25 min
Jun 16, 7:46 PM EDTSpecial Weather StatementAKQ44 min
Jun 23, 1:25 PM EDTSpecial Weather StatementAKQ50 min
Jun 26, 10:13 AM EDTFlood WatchAKQ17 hr
Jun 26, 12:36 PM EDTMesoscale DiscussionSPC2 hr
Jun 26, 3:05 PM EDTSevere Thunderstorm WatchSPC9 hr
Jun 26, 6:29 PM EDTSevere Thunderstorm Warning Considerable damage threatAKQ61 min
Jun 26, 7:08 PM EDTMesoscale DiscussionSPC2 hr
Jun 26, 7:18 PM EDTSevere Thunderstorm Warning Considerable damage threatAKQ42 min
Jun 26, 7:24 PM EDTSevere Thunderstorm Warning Considerable damage threatAKQ66 min
Jun 26, 8:19 PM EDTSevere Thunderstorm WarningAKQ27 min
Jun 26, 8:25 PM EDTSpecial Weather StatementAKQ50 min
Jun 26, 9:04 PM EDTSevere Thunderstorm WarningAKQ41 min
Jun 26, 9:13 PM EDTMesoscale DiscussionSPC62 min
Jun 26, 9:21 PM EDTSevere Thunderstorm WarningAKQ39 min
Jun 26, 9:40 PM EDTSevere Thunderstorm WarningAKQ35 min
Jun 26, 9:41 PM EDTAreal Flood AdvisoryAKQ2 hr
Jun 30, 5:11 PM EDTSpecial Weather StatementAKQ64 min
Jun 30, 6:57 PM EDTAreal Flood AdvisoryAKQ3 hr
Jul 1, 1:37 PM EDTMesoscale DiscussionSPC113 min
Jul 1, 4:34 PM EDTSpecial Weather StatementAKQ41 min
Jul 2, 2:06 PM EDTMesoscale DiscussionSPC114 min
Jul 3, 1:42 PM EDTMesoscale DiscussionSPC2 hr
Jul 3, 2:42 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 3, 4:09 PM EDTSevere Thunderstorm WarningAKQ51 min
Jul 3, 4:35 PM EDTSevere Thunderstorm WarningAKQ23 min
Jul 3, 4:43 PM EDTSevere Thunderstorm WarningAKQ22 min
Jul 3, 4:49 PM EDTMesoscale DiscussionSPC116 min
Jul 3, 8:29 PM EDTMesoscale DiscussionSPC91 min
Jul 6, 4:48 PM EDTSpecial Weather StatementAKQ42 min
Jul 8, 1:18 PM EDTSpecial Weather StatementAKQ27 min
Jul 8, 1:23 PM EDTSpecial Weather StatementAKQ37 min
Jul 8, 1:43 PM EDTFlash Flood WarningAKQ92 min
Jul 9, 3:29 AM EDTFlood WatchAKQ18 hr
Jul 9, 12:55 PM EDTMesoscale DiscussionSPC65 min
Jul 9, 1:19 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 9, 1:37 PM EDTSpecial Weather StatementAKQ53 min
Jul 9, 2:29 PM EDTSpecial Weather StatementAKQ46 min
Jul 9, 3:03 PM EDTSpecial Weather StatementAKQ42 min
Jul 14, 2:02 PM EDTMesoscale DiscussionSPC2 hr
Jul 16, 6:26 AM EDTFlood WatchAKQ11 hr
Jul 16, 9:00 AM EDTAreal Flood AdvisoryAKQ25 min
Jul 16, 9:25 AM EDTFlash Flood WarningAKQ3 hr
Jul 19, 4:48 PM EDTMesoscale DiscussionSPC87 min
Jul 23, 7:48 PM EDTSpecial Weather StatementAKQ27 min
Jul 24, 2:32 AM EDTAreal Flood AdvisoryAKQ118 min
Jul 26, 2:49 PM EDTExcessive Heat WatchAKQ23 hr
Jul 26, 2:49 PM EDTHeat AdvisoryAKQ3 days
Jul 27, 2:03 PM EDTExcessive Heat WarningAKQ54 hr
Jul 29, 2:47 PM EDTMesoscale DiscussionSPC118 min
Jul 29, 4:24 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 29, 6:20 PM EDTMesoscale DiscussionSPC85 min
Aug 6, 6:37 PM EDTSevere Thunderstorm WarningAKQ38 min
Aug 6, 7:15 PM EDTSevere Thunderstorm WarningAKQ18 min
Aug 6, 7:57 PM EDTAreal Flood AdvisoryAKQ2 hr
Aug 6, 9:39 PM EDTAreal Flood AdvisoryAKQ2 hr
Aug 7, 1:20 PM EDTTornado WatchSPC11 hr
Aug 7, 3:17 PM EDTMesoscale DiscussionSPC88 min
Aug 7, 4:40 PM EDTMesoscale DiscussionSPC95 min
Aug 14, 1:55 PM EDTMesoscale DiscussionSPC2 hr
Aug 15, 1:28 PM EDTMesoscale DiscussionSPC3 hr
Aug 15, 2:08 PM EDTSevere Thunderstorm WatchSPC6 hr
Aug 27, 2:18 PM EDTAreal Flood AdvisoryAKQ3 hr
Aug 28, 3:56 PM EDTAreal Flood AdvisoryAKQ3 hr
Sep 7, 6:35 PM EDTMesoscale DiscussionSPC85 min
Sep 7, 7:11 PM EDTSevere Thunderstorm WarningAKQ49 min
Sep 7, 7:48 PM EDTFlash Flood WarningAKQ3 hr
Sep 9, 2:56 PM EDTSpecial Weather StatementAKQ49 min
Sep 21, 3:22 PM EDTFlood WatchAKQ60 hr
Sep 23, 4:19 PM EDTFlash Flood WarningAKQ6 hr
Oct 6, 5:32 AM EDTDense Fog AdvisoryAKQ4 hr
Oct 23, 2:13 PM EDTFrost AdvisoryAKQ19 hr
Oct 31, 4:36 AM EDTFreeze WatchAKQ21 hr
Nov 1, 2:01 AM EDTFreeze WarningAKQ32 hr
Nov 17, 11:24 AM ESTFire Weather WatchAKQ16 hr
Dec 2, 8:20 PM ESTDense Fog AdvisoryAKQ12 hr
Dec 10, 1:31 PM ESTTornado WatchSPC8 hr
Dec 10, 4:08 PM ESTAreal Flood AdvisoryAKQ3 hr
Dec 10, 4:22 PM ESTFlash Flood WarningAKQ3 hr
Dec 10, 4:49 PM ESTAreal Flood AdvisoryAKQ3 hr
Dec 16, 2:01 PM ESTFlood WatchAKQ40 hr
Dec 17, 5:58 PM ESTAreal Flood AdvisoryAKQ3 hr
Dec 17, 8:49 PM ESTAreal Flood AdvisoryAKQ4 hr
Dec 29, 5:30 AM ESTDense Fog AdvisoryAKQ4 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 archive20222024

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.