Alert archive / Virginia / Washington County

Weather alerts in Washington County, Virginia, 2024

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

Washington County and its neighbors

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

Alerts
85
Warnings
19
Watches
9
Advisories
30
Busiest month
September16 alerts
Busiest day
September 26, 20245 alerts

Over time

By month

Warning verification

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

Washington County, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings770%4100%30 min
Flash flood warnings5340%3100%127 min

Each office's whole area, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Morristown, TN: tornado warnings18383%4100%11 min
NWS Morristown, TN: severe thunderstorm warnings18914026%22986%22 min
NWS Morristown, TN: flash flood warnings613543%9276%75 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, 3:45 AM ESTWind AdvisoryMRX57 hr
Jan 9, 8:59 PM ESTWinter Weather AdvisoryMRX12 hr
Jan 11, 3:21 AM ESTWind AdvisoryMRX60 hr
Jan 13, 3:39 AM ESTWinter Storm WatchMRX24 hr
Jan 14, 3:43 AM ESTWinter Storm WarningMRX51 hr
Jan 16, 3:22 AM ESTWind Chill AdvisoryMRX33 hr
Jan 17, 3:18 PM ESTWinter Weather AdvisoryMRX64 hr
Jan 19, 3:39 AM ESTWind Chill AdvisoryMRX54 hr
Jan 26, 3:16 PM ESTFlood WatchMRX23 hr
Feb 12, 9:52 PM ESTSpecial Weather StatementMRX53 min
Feb 26, 3:00 PM ESTWind AdvisoryMRX52 hr
Feb 28, 12:39 PM ESTSevere Thunderstorm WarningMRX51 min
Feb 28, 1:16 PM ESTSpecial Weather StatementMRX29 min
Mar 9, 3:27 AM ESTWind AdvisoryMRX41 hr
Mar 28, 2:56 PM EDTFrost AdvisoryMRX18 hr
Apr 5, 2:13 PM EDTFreeze WarningMRX20 hr
Apr 6, 12:51 PM EDTFreeze WarningMRX20 hr
Apr 11, 5:39 PM EDTSpecial Weather StatementMRX51 min
Apr 12, 10:39 PM EDTSpecial Weather StatementMRX36 min
Apr 16, 2:53 PM EDTAreal Flood AdvisoryMRX112 min
Apr 19, 2:33 PM EDTMesoscale DiscussionSPC117 min
Apr 21, 3:25 AM EDTFrost AdvisoryMRX30 hr
Apr 22, 2:43 PM EDTFrost AdvisoryMRX18 hr
May 1, 3:16 AM EDTDense Fog AdvisoryMRX7 hr
May 4, 1:56 PM EDTSpecial Weather StatementMRX49 min
May 6, 8:49 PM EDTSpecial Weather StatementMRX41 min
May 7, 5:05 PM EDTMesoscale DiscussionSPC85 min
May 8, 2:28 AM EDTFlood WatchMRX30 hr
May 11, 5:58 AM EDTDense Fog AdvisoryMRX3 hr
May 22, 9:27 PM EDTSpecial Weather StatementMRX48 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, 3:47 PM EDTSevere Thunderstorm WarningMRX58 min
May 27, 3:05 AM EDTMesoscale DiscussionSPC55 min
May 27, 4:19 AM EDTSpecial Weather StatementMRX56 min
Jun 10, 4:45 AM EDTDense Fog AdvisoryMRX4 hr
Jun 30, 2:16 PM EDTMesoscale DiscussionSPC119 min
Jun 30, 2:44 PM EDTSevere Thunderstorm WarningMRX46 min
Jun 30, 2:58 PM EDTSevere Thunderstorm WarningMRX32 min
Jun 30, 3:28 PM EDTSpecial Weather StatementMRX47 min
Jul 5, 12:11 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 7, 4:08 PM EDTSpecial Weather StatementMRX22 min
Jul 29, 9:02 AM EDTAreal Flood AdvisoryMRX3 hr
Jul 30, 3:36 AM EDTFlood WatchMRX4 days
Jul 30, 8:10 AM EDTSpecial Weather StatementMRX50 min
Aug 2, 1:10 PM EDTSpecial Weather StatementMRX65 min
Aug 2, 1:26 PM EDTSevere Thunderstorm WarningMRX34 min
Aug 2, 1:37 PM EDTAreal Flood AdvisoryMRX113 min
Aug 2, 1:43 PM EDTMesoscale DiscussionSPC2 hr
Aug 18, 3:43 PM EDTSpecial Weather StatementMRX47 min
Aug 18, 4:39 PM EDTAreal Flood AdvisoryMRX3 hr
Aug 30, 4:59 PM EDTSpecial Weather StatementMRX46 min
Aug 30, 5:02 PM EDTSpecial Weather StatementMRX43 min
Aug 30, 5:50 PM EDTSpecial Weather StatementMRX40 min
Aug 31, 4:53 PM EDTFlash Flood WarningMRX3 hr
Aug 31, 6:53 PM EDTAreal Flood AdvisoryMRX3 hr
Sep 23, 2:13 PM EDTMesoscale DiscussionSPC92 min
Sep 24, 1:55 PM EDTMesoscale DiscussionSPC65 min
Sep 24, 2:55 PM EDTFlood WatchMRX71 hr
Sep 24, 6:55 PM EDTSevere Thunderstorm WarningMRX50 min
Sep 24, 7:42 PM EDTSevere Thunderstorm WarningMRX63 min
Sep 24, 8:37 PM EDTSpecial Weather StatementMRX53 min
Sep 25, 1:15 AM EDTAreal Flood AdvisoryMRX3 hr
Sep 25, 1:38 PM EDTHigh Wind WatchMRX23 hr
Sep 25, 8:10 PM EDTFlash Flood WarningMRX3 hr
Sep 25, 9:40 PM EDTHigh Wind WarningMRX55 hr
Sep 25, 11:13 PM EDTFlash Flood WarningMRX13 hr
Sep 26, 12:07 PM EDTAreal Flood WarningMRX5 hr
Sep 26, 4:59 PM EDTAreal Flood WarningMRX12 hr
Sep 27, 11:13 AM EDTFlash Flood WarningMRX4 hr
Sep 27, 2:43 PM EDTFlash Flood Warning EmergencyCatastrophic damage threatMRX5 hr
Sep 27, 6:25 PM EDTAreal Flood WarningMRX16 hr
Oct 2, 4:57 AM EDTDense Fog AdvisoryMRX4 hr
Oct 2, 10:05 PM EDTDense Fog AdvisoryMRX12 hr
Oct 5, 3:42 AM EDTDense Fog AdvisoryMRX6 hr
Nov 20, 3:06 AM ESTWinter Weather AdvisoryMRX3 days
Dec 4, 3:39 AM ESTWind AdvisoryMRX33 hr
Dec 11, 3:56 AM ESTWinter Weather AdvisoryMRX10 hr
Dec 18, 3:18 AM ESTDense Fog AdvisoryMRX6 hr
Dec 19, 2:56 PM ESTWinter Storm WatchMRX6 hr
Dec 19, 9:03 PM ESTWinter Weather AdvisoryMRX37 hr
Dec 29, 2:24 AM ESTWind AdvisoryMRX17 hr
Dec 29, 8:10 AM ESTSpecial Weather StatementMRX50 min
Dec 30, 2:37 PM ESTWind AdvisoryMRX28 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 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.