Alert archive / West Virginia / Hampshire County
Weather alerts in Hampshire County, West Virginia, 2021
106 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Hampshire County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 106
- Warnings
- 35
- Watches
- 30
- Advisories
- 27
- Busiest month
- June24 alerts
- Busiest day
- June 21, 20216 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Hampshire County, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 21 | 16 | 24% | 7 | 57% | 19 min |
| Flash flood warnings | 2 | 1 | 50% | 1 | 100% | 45 min |
Each office's whole area, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Baltimore/Washington: tornado warnings | 49 | 10 | 80% | 13 | 100% | 11 min |
| NWS Baltimore/Washington: severe thunderstorm warnings | 544 | 396 | 27% | 1,446 | 83% | 20 min |
| NWS Baltimore/Washington: flash flood warnings | 76 | 32 | 58% | 96 | 77% | 60 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, 5:37 PM EST | Winter Weather Advisory | LWX | 30 hr |
| Jan 15, 10:46 PM EST | Dense Fog Advisory | LWX | 9 hr |
| Jan 18, 3:04 PM EST | Special Weather Statement | LWX | 41 min |
| Jan 24, 3:45 AM EST | Winter Storm Watch | LWX | 21 hr |
| Jan 25, 1:05 AM EST | Winter Storm Warning | LWX | 36 hr |
| Jan 29, 3:10 PM EST | Winter Storm Watch | LWX | 23 hr |
| Jan 30, 9:02 AM EST | Winter Storm Warning | LWX | 69 hr |
| Feb 5, 3:13 PM EST | Winter Storm Watch | LWX | 12 hr |
| Feb 6, 3:22 AM EST | Winter Weather Advisory | LWX | 33 hr |
| Feb 9, 2:23 PM EST | Winter Storm Watch | LWX | 13 hr |
| Feb 10, 3:33 AM EST | Winter Weather Advisory | LWX | 30 hr |
| Feb 10, 12:40 PM EST | Winter Storm Warning | LWX | 21 hr |
| Feb 12, 3:10 PM EST | Winter Weather Advisory | LWX | 43 hr |
| Feb 14, 10:00 AM EST | Winter Weather Advisory | LWX | 44 hr |
| Feb 14, 2:32 PM EST | Winter Storm Watch | LWX | 14 hr |
| Feb 16, 4:56 AM EST | Winter Storm Watch | LWX | 29 hr |
| Feb 17, 3:24 AM EST | Winter Storm Warning | LWX | 57 hr |
| Feb 18, 1:05 PM EST | Winter Weather Advisory | LWX | 23 hr |
| Feb 21, 3:17 PM EST | Winter Weather Advisory | LWX | 24 hr |
| Feb 22, 8:22 PM EST | Wind Advisory | LWX | 22 hr |
| Feb 27, 4:23 AM EST | Flood Watch | LWX | 47 hr |
| Feb 28, 10:55 AM EST | River Flood Watch | LWX | 17 hr |
| Feb 28, 10:55 AM EST | River Flood Warning | LWX | 38 hr |
| Feb 28, 2:46 PM EST | Areal Flood Warning | LWX | 29 hr |
| Mar 1, 3:45 AM EST | River Flood Warning | LWX | 7 hr |
| Mar 10, 3:43 PM EST | Fire Weather Watch | LWX | 12 hr |
| Mar 13, 1:53 PM EST | Fire Weather Watch | LWX | 13 hr |
| Mar 14, 4:01 AM EDT | Red Flag Warning | LWX | 18 hr |
| Mar 24, 1:53 PM EDT | High Wind Watch | LWX | 25 hr |
| Mar 24, 9:09 PM EDT | Dense Fog Advisory | LWX | 14 hr |
| Mar 25, 2:41 PM EDT | Wind Advisory | LWX | 27 hr |
| Mar 28, 4:16 AM EDT | Wind Advisory | LWX | 23 hr |
| Apr 29, 8:18 PM EDT | Wind Advisory | LWX | 30 hr |
| May 3, 5:25 PM EDT | Severe Thunderstorm Warning | LWX | 35 min |
| May 4, 1:51 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 12, 1:32 PM EDT | Frost Advisory | LWX | 19 hr |
| May 17, 2:51 AM EDT | Dense Fog Advisory | LWX | 7 hr |
| May 26, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 2, 6:27 PM EDT | Severe Thunderstorm Warning | LWX | 48 min |
| Jun 10, 2:53 AM EDT | Flash Flood Watch | LWX | 43 hr |
| Jun 10, 5:16 PM EDT | Flash Flood Warning | LWX | 2 hr |
| Jun 10, 6:54 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Jun 10, 7:44 PM EDT | Areal Flood Warning | LWX | 3 hr |
| Jun 10, 9:47 PM EDT | Areal Flood Warning | LWX | 13 min |
| Jun 13, 11:48 AM EDT | Severe Thunderstorm Warning | LWX | 42 min |
| Jun 13, 12:13 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 3:55 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Jun 14, 3:59 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 14, 7:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 20, 7:31 PM EDT | Severe Thunderstorm Warning | LWX | 44 min |
| Jun 20, 8:11 PM EDT | Severe Thunderstorm Warning | LWX | 26 min |
| Jun 21, 1:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jun 21, 2:20 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 21, 3:30 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Jun 21, 3:33 PM EDT | Severe Thunderstorm Warning | LWX | 42 min |
| Jun 21, 4:06 PM EDT | Severe Thunderstorm Warning | LWX | 39 min |
| Jun 30, 4:03 PM EDT | Severe Thunderstorm Warning | LWX | 27 min |
| Jun 30, 4:26 PM EDT | Severe Thunderstorm Warning | LWX | 16 min |
| Jun 30, 4:39 PM EDT | Severe Thunderstorm Warning | LWX | 36 min |
| Jun 30, 4:41 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 4:51 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 30, 5:11 PM EDT | Severe Thunderstorm Warning | LWX | 34 min |
| Jul 7, 5:34 PM EDT | Severe Thunderstorm Warning | LWX | 28 min |
| Jul 11, 2:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 11, 7:58 PM EDT | Severe Thunderstorm Warning | LWX | 47 min |
| Jul 11, 8:28 PM EDT | Severe Thunderstorm Warning | LWX | 47 min |
| Jul 12, 1:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 12, 4:36 PM EDT | Severe Thunderstorm Warning | LWX | 39 min |
| Jul 17, 12:00 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 17, 1:13 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 17, 4:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 17, 5:20 PM EDT | Severe Thunderstorm Warning | LWX | 40 min |
| Jul 29, 11:58 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 29, 3:00 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 11, 1:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 11, 2:02 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 11, 3:18 PM EDT | Severe Thunderstorm Warning | LWX | 30 min |
| Aug 12, 2:15 AM EDT | Heat Advisory | LWX | 18 hr |
| Aug 12, 6:04 PM EDT | Heat Advisory | LWX | 25 hr |
| Aug 13, 12:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 13, 2:18 PM EDT | Severe Thunderstorm Warning | LWX | 42 min |
| Aug 17, 1:54 PM EDT | Flash Flood Watch | LWX | 27 hr |
| Aug 18, 11:37 AM EDT | Tornado Watch | SPC | 11 hr |
| Aug 19, 2:11 PM EDT | Flash Flood Watch | LWX | 28 hr |
| Aug 26, 4:25 PM EDT | Severe Thunderstorm Warning | LWX | 29 min |
| Aug 28, 1:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 28, 4:46 PM EDT | Severe Thunderstorm Warning | LWX | 25 min |
| Aug 30, 4:54 AM EDT | Flash Flood Watch | LWX | 62 hr |
| Aug 30, 7:17 AM EDT | Dense Fog Advisory | LWX | 103 min |
| Aug 31, 12:56 AM EDT | River Flood Watch | LWX | 21 days |
| Aug 31, 11:28 AM EDT | River Flood Watch | LWX | 21 days |
| Aug 31, 11:30 AM EDT | River Flood Watch | LWX | 67 hr |
| Sep 1, 12:52 PM EDT | Areal Flood Warning | LWX | 22 hr |
| Sep 21, 3:04 AM EDT | Flash Flood Watch | LWX | 57 hr |
| Sep 28, 10:12 AM EDT | Areal Flood Warning | LWX | 97 min |
| Oct 5, 12:37 AM EDT | Dense Fog Advisory | LWX | 9 hr |
| Oct 8, 2:27 AM EDT | Dense Fog Advisory | LWX | 7 hr |
| Oct 8, 9:01 AM EDT | Dense Fog Advisory | LWX | 119 min |
| Oct 14, 2:36 AM EDT | Dense Fog Advisory | LWX | 7 hr |
| Oct 26, 2:55 AM EDT | Wind Advisory | LWX | 21 hr |
| Nov 30, 2:43 PM EST | High Wind Watch | LWX | 24 hr |
| Nov 30, 2:44 PM EST | Fire Weather Watch | LWX | 43 hr |
| Dec 1, 2:26 PM EST | Wind Advisory | LWX | 39 hr |
| Dec 6, 11:09 AM EST | Wind Advisory | LWX | 14 hr |
| Dec 10, 10:48 AM EST | Wind Advisory | LWX | 38 hr |
| Dec 30, 10:18 PM EST | Dense Fog Advisory | LWX | 14 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 | 21 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 13 |
| Special Weather Statement | 1 |
| Flooding | |
| Areal Flood Warning | 5 |
| Flash Flood Warning | 2 |
| River Flood Warning | 2 |
| Flash Flood Watch | 5 |
| Flood Watch | 1 |
| River Flood Watch | 4 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 6 |
| Winter Weather Advisory | 7 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Watch | 2 |
| Wind Advisory | 8 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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.