Alert archive / Virginia / Washington County
Weather alerts in Washington County, Virginia, 2023
101 weather alerts in 2023, 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 2023. Tap one for its archive.
- Alerts
- 101
- Warnings
- 31
- Watches
- 13
- Advisories
- 36
- Busiest month
- March24 alerts
- Busiest day
- July 15, 20236 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, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 17 | 14 | 18% | 5 | 80% | 21 min |
| Flash flood warnings | 2 | 0 | 100% | 0 |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Morristown, TN: tornado warnings | 29 | 4 | 86% | 10 | 60% | 11 min |
| NWS Morristown, TN: severe thunderstorm warnings | 282 | 246 | 13% | 385 | 89% | 22 min |
| NWS Morristown, TN: flash flood warnings | 45 | 25 | 44% | 48 | 79% | 51 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 2, 1:19 AM EST | Dense Fog Advisory | MRX | 8 hr |
| Jan 3, 4:47 PM EST | Special Weather Statement | MRX | 28 min |
| Jan 12, 3:44 AM EST | Winter Weather Advisory | MRX | 51 hr |
| Jan 12, 2:07 PM EST | Severe Thunderstorm Warning | MRX | 53 min |
| Jan 17, 6:48 PM EST | Dense Fog Advisory | MRX | 16 hr |
| Jan 18, 4:10 AM EST | Wind Advisory | MRX | 39 hr |
| Jan 19, 6:57 PM EST | Wind Advisory | MRX | 9 hr |
| Jan 23, 3:38 PM EST | Wind Advisory | MRX | 51 hr |
| Jan 30, 10:24 PM EST | Dense Fog Advisory | MRX | 12 hr |
| Feb 8, 3:32 AM EST | Wind Advisory | MRX | 39 hr |
| Feb 11, 3:51 AM EST | Winter Weather Advisory | MRX | 41 hr |
| Feb 12, 2:58 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Feb 26, 3:26 AM EST | Wind Advisory | MRX | 52 hr |
| Feb 27, 5:21 PM EST | Special Weather Statement | MRX | 24 min |
| Mar 2, 3:35 AM EST | High Wind Watch | MRX | 12 hr |
| Mar 2, 3:34 PM EST | High Wind Warning | MRX | 35 hr |
| Mar 3, 2:41 PM EST | Tornado Watch | SPC | 5 hr |
| Mar 3, 4:37 PM EST | Severe Thunderstorm Warning | MRX | 38 min |
| Mar 7, 3:21 AM EST | Freeze Watch | MRX | 12 hr |
| Mar 7, 3:14 PM EST | Freeze Warning | MRX | 18 hr |
| Mar 12, 3:20 PM EDT | Freeze Watch | MRX | 12 hr |
| Mar 13, 3:09 AM EDT | Freeze Warning | MRX | 34 hr |
| Mar 14, 3:29 AM EDT | Freeze Warning | MRX | 32 hr |
| Mar 15, 3:44 AM EDT | Freeze Warning | MRX | 30 hr |
| Mar 17, 3:26 AM EDT | Freeze Watch | MRX | 7 hr |
| Mar 17, 10:10 AM EDT | Freeze Warning | MRX | 23 hr |
| Mar 18, 2:59 AM EDT | Freeze Warning | MRX | 34 hr |
| Mar 18, 3:33 PM EDT | Freeze Warning | MRX | 43 hr |
| Mar 19, 3:30 PM EDT | Freeze Watch | MRX | 12 hr |
| Mar 20, 3:09 AM EDT | Freeze Warning | MRX | 30 hr |
| Mar 24, 3:54 AM EDT | Wind Advisory | MRX | 40 hr |
| Mar 25, 4:47 AM EDT | Special Weather Statement | MRX | 58 min |
| Mar 25, 5:15 AM EDT | Severe Thunderstorm Warning | MRX | 43 min |
| Mar 25, 5:49 AM EDT | Wind Advisory | MRX | 14 hr |
| Mar 28, 2:49 PM EDT | Frost Advisory | MRX | 18 hr |
| Mar 28, 2:49 PM EDT | Freeze Watch | MRX | 24 hr |
| Mar 29, 3:09 PM EDT | Frost Advisory | MRX | 18 hr |
| Mar 31, 3:05 AM EDT | Wind Advisory | MRX | 41 hr |
| Apr 8, 3:05 PM EDT | Frost Advisory | MRX | 18 hr |
| Apr 9, 3:41 AM EDT | Frost Advisory | MRX | 29 hr |
| Apr 14, 3:06 PM EDT | Special Weather Statement | MRX | 39 min |
| Apr 18, 8:37 AM EDT | Red Flag Warning | MRX | 11 hr |
| Apr 22, 3:55 AM EDT | Special Weather Statement | MRX | 50 min |
| Apr 23, 3:00 AM EDT | Frost Advisory | MRX | 30 hr |
| Apr 24, 3:33 AM EDT | Freeze Watch | MRX | 8 hr |
| Apr 24, 11:59 AM EDT | Freeze Warning | MRX | 21 hr |
| Apr 28, 3:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 12, 5:04 PM EDT | Special Weather Statement | MRX | 56 min |
| May 16, 12:30 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 16, 3:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| May 16, 5:34 PM EDT | Severe Thunderstorm Warning | MRX | 41 min |
| May 16, 5:42 PM EDT | Severe Thunderstorm Warning | MRX | 33 min |
| May 16, 6:03 PM EDT | Severe Thunderstorm Warning | MRX | 57 min |
| Jun 8, 3:08 AM EDT | Dense Fog Advisory | MRX | 6 hr |
| Jul 1, 5:45 AM EDT | Severe Thunderstorm Warning | MRX | 45 min |
| Jul 1, 6:27 AM EDT | Severe Thunderstorm Warning | MRX | 78 min |
| Jul 2, 5:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 14, 2:25 AM EDT | Areal Flood Advisory | MRX | 44 min |
| Jul 14, 6:19 PM EDT | Severe Thunderstorm Warning | MRX | 41 min |
| Jul 14, 7:35 PM EDT | Areal Flood Advisory | MRX | 115 min |
| Jul 15, 3:37 PM EDT | Special Weather Statement | MRX | 38 min |
| Jul 15, 3:39 PM EDT | Special Weather Statement | MRX | 36 min |
| Jul 15, 3:56 PM EDT | Severe Thunderstorm Warning | MRX | 49 min |
| Jul 15, 4:21 PM EDT | Special Weather Statement | MRX | 39 min |
| Jul 15, 4:22 PM EDT | Areal Flood Advisory | MRX | 5 hr |
| Jul 15, 4:42 PM EDT | Flash Flood Warning | MRX | 6 hr |
| Jul 15, 8:46 PM EDT | Flash Flood Warning | MRX | 104 min |
| Jul 25, 3:17 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 28, 4:06 PM EDT | Severe Thunderstorm Warning | MRX | 54 min |
| Jul 28, 4:42 PM EDT | Severe Thunderstorm Warning | MRX | 78 min |
| Jul 28, 5:19 PM EDT | Severe Thunderstorm Warning | MRX | 56 min |
| Jul 29, 10:53 AM EDT | Special Weather Statement | MRX | 52 min |
| Jul 29, 2:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 29, 3:45 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 29, 4:06 PM EDT | Severe Thunderstorm Warning | MRX | 54 min |
| Jul 29, 4:53 PM EDT | Severe Thunderstorm Warning | MRX | 67 min |
| Jul 29, 5:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 7, 8:18 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 7, 10:57 AM EDT | Tornado Watch | SPC | 7 hr |
| Aug 14, 8:33 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 24, 1:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 26, 3:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 27, 7:20 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 28, 5:53 PM EDT | Areal Flood Advisory | MRX | 112 min |
| Sep 7, 4:15 PM EDT | Severe Thunderstorm Warning | MRX | 60 min |
| Sep 7, 4:49 PM EDT | Severe Thunderstorm Warning | MRX | 56 min |
| Sep 7, 5:03 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Sep 7, 5:05 PM EDT | Special Weather Statement | MRX | 55 min |
| Sep 8, 4:11 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Sep 8, 6:36 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Sep 9, 5:42 PM EDT | Special Weather Statement | MRX | 48 min |
| Sep 9, 6:11 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Sep 9, 6:13 PM EDT | Areal Flood Advisory | MRX | 4 hr |
| Sep 9, 7:06 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Oct 14, 3:21 PM EDT | Wind Advisory | MRX | 15 hr |
| Oct 22, 3:08 AM EDT | Frost Advisory | MRX | 31 hr |
| Oct 30, 3:42 AM EDT | Freeze Watch | MRX | 24 hr |
| Oct 31, 3:37 AM EDT | Freeze Warning | MRX | 30 hr |
| Nov 20, 3:54 AM EST | Wind Advisory | MRX | 36 hr |
| Dec 2, 3:22 AM EST | Dense Fog Advisory | MRX | 8 hr |
| Dec 17, 2:34 PM EST | Winter Weather Advisory | MRX | 37 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 17 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 9 |
| Special Weather Statement | 12 |
| Flooding | |
| Flash Flood Warning | 2 |
| Areal Flood Advisory | 12 |
| Winter | |
| Winter Weather Advisory | 3 |
| Cold | |
| Freeze Warning | 10 |
| Freeze Watch | 7 |
| Frost Advisory | 6 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 10 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
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.