Alert archive / West Virginia / Monongalia County
Weather alerts in Monongalia County, West Virginia, 2021
118 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Monongalia County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 118
- Warnings
- 36
- Watches
- 21
- Advisories
- 29
- Busiest month
- June36 alerts
- Busiest day
- June 13, 202112 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Monongalia 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% | 11 | 82% | 13 min |
| Flash flood warnings | 9 | 7 | 22% | 6 | 83% | 50 min |
Each office's whole area, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pittsburgh, PA: tornado warnings | 27 | 15 | 44% | 35 | 69% | 7 min |
| NWS Pittsburgh, PA: severe thunderstorm warnings | 319 | 228 | 29% | 637 | 78% | 17 min |
| NWS Pittsburgh, PA: flash flood warnings | 44 | 35 | 20% | 176 | 84% | 77 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 16, 3:19 AM EST | Winter Weather Advisory | PBZ | 28 hr |
| Jan 16, 8:51 AM EST | Special Weather Statement | PBZ | 54 min |
| Jan 19, 2:37 AM EST | Winter Weather Advisory | PBZ | 34 hr |
| Jan 30, 3:42 AM EST | Winter Weather Advisory | PBZ | 71 hr |
| Feb 2, 6:45 PM EST | Winter Weather Advisory | PBZ | 9 hr |
| Feb 9, 6:46 AM EST | Special Weather Statement | PBZ | 119 min |
| Feb 9, 12:00 PM EST | Winter Storm Watch | PBZ | 16 hr |
| Feb 10, 3:31 AM EST | Winter Weather Advisory | PBZ | 29 hr |
| Feb 11, 6:25 AM EST | Special Weather Statement | PBZ | 80 min |
| Feb 13, 8:11 AM EST | Winter Weather Advisory | PBZ | 24 hr |
| Feb 13, 1:55 PM EST | Winter Storm Watch | PBZ | 24 hr |
| Feb 14, 1:49 PM EST | Winter Weather Advisory | PBZ | 40 hr |
| Feb 15, 2:44 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 16, 11:55 AM EST | Winter Storm Watch | PBZ | 25 hr |
| Feb 17, 1:21 PM EST | Winter Weather Advisory | PBZ | 36 hr |
| Feb 18, 7:01 AM EST | Special Weather Statement | PBZ | 89 min |
| Feb 27, 3:56 AM EST | Flood Watch | PBZ | 48 hr |
| Feb 28, 1:40 PM EST | Areal Flood Advisory | PBZ | 2 hr |
| Feb 28, 3:54 PM EST | Areal Flood Warning | PBZ | 21 hr |
| Mar 1, 12:35 AM EST | Areal Flood Advisory | PBZ | 8 hr |
| Mar 1, 5:27 AM EST | Areal Flood Advisory | PBZ | 8 hr |
| Mar 1, 12:16 PM EST | Wind Advisory | PBZ | 7 hr |
| Mar 18, 5:53 PM EDT | Severe Thunderstorm Warning | PBZ | 20 min |
| Mar 24, 1:03 PM EDT | High Wind Watch | PBZ | 24 hr |
| Mar 25, 1:12 PM EDT | Wind Advisory | PBZ | 27 hr |
| Apr 20, 7:01 AM EDT | Freeze Watch | PBZ | 19 hr |
| Apr 21, 2:04 AM EDT | Freeze Warning | PBZ | 32 hr |
| Apr 21, 1:25 PM EDT | Freeze Watch | PBZ | 13 hr |
| Apr 22, 2:39 AM EDT | Freeze Warning | PBZ | 30 hr |
| Apr 25, 4:33 PM EDT | Frost Advisory | PBZ | 15 hr |
| Apr 30, 12:59 AM EDT | Wind Advisory | PBZ | 20 hr |
| Apr 30, 12:59 PM EDT | Frost Advisory | PBZ | 20 hr |
| May 3, 2:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| May 4, 11:39 AM EDT | Special Weather Statement | PBZ | 36 min |
| May 4, 11:47 AM EDT | Severe Thunderstorm Warning | PBZ | 28 min |
| May 4, 6:00 PM EDT | Flash Flood Watch | PBZ | 11 hr |
| May 11, 11:52 AM EDT | Frost Advisory | PBZ | 19 hr |
| May 12, 11:40 AM EDT | Frost Advisory | PBZ | 20 hr |
| May 26, 12:59 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 26, 3:21 PM EDT | Severe Thunderstorm Warning | PBZ | 27 min |
| Jun 10, 7:51 PM EDT | Flash Flood Warning | PBZ | 84 min |
| Jun 11, 3:23 AM EDT | Flash Flood Watch | PBZ | 15 hr |
| Jun 11, 6:37 AM EDT | Areal Flood Advisory | PBZ | 3 hr |
| Jun 13, 12:13 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 13, 12:50 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 1:06 PM EDT | Severe Thunderstorm Warning | PBZ | 24 min |
| Jun 13, 1:37 PM EDT | Severe Thunderstorm Warning | PBZ | 38 min |
| Jun 13, 1:57 PM EDT | Severe Thunderstorm Warning | PBZ | 20 min |
| Jun 13, 2:08 PM EDT | Severe Thunderstorm Warning | PBZ | 33 min |
| Jun 13, 2:16 PM EDT | Flash Flood Warning | PBZ | 2 hr |
| Jun 13, 3:11 PM EDT | Areal Flood Advisory | PBZ | 64 min |
| Jun 13, 3:13 PM EDT | Severe Thunderstorm Warning | PBZ | 47 min |
| Jun 13, 3:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 13, 3:38 PM EDT | Flash Flood Warning | PBZ | 50 min |
| Jun 13, 5:18 PM EDT | Areal Flood Advisory | PBZ | 117 min |
| Jun 14, 11:31 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 14, 11:46 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 14, 4:52 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 14, 5:18 PM EDT | Severe Thunderstorm Warning | PBZ | 27 min |
| Jun 14, 5:41 PM EDT | Severe Thunderstorm Warning | PBZ | 31 min |
| Jun 14, 6:02 PM EDT | Severe Thunderstorm Warning | PBZ | 28 min |
| Jun 14, 6:20 PM EDT | Areal Flood Advisory | PBZ | 111 min |
| Jun 14, 6:27 PM EDT | Severe Thunderstorm Warning | PBZ | 33 min |
| Jun 14, 6:51 PM EDT | Severe Thunderstorm Warning | PBZ | 39 min |
| Jun 21, 12:31 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 21, 4:19 PM EDT | Severe Thunderstorm Warning | PBZ | 41 min |
| Jun 21, 5:08 PM EDT | Areal Flood Advisory | PBZ | 3 hr |
| Jun 21, 5:41 PM EDT | Special Weather Statement | PBZ | 34 min |
| Jun 21, 6:07 PM EDT | Severe Thunderstorm Warning | PBZ | 23 min |
| Jun 21, 6:56 PM EDT | Flash Flood Warning | PBZ | 2 hr |
| Jun 21, 7:46 PM EDT | Areal Flood Warning | PBZ | 3 hr |
| Jun 21, 10:44 PM EDT | Areal Flood Warning | PBZ | 3 hr |
| Jun 30, 11:30 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 11:47 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 4:14 PM EDT | Special Weather Statement | PBZ | 31 min |
| Jun 30, 4:41 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 7, 1:26 PM EDT | Special Weather Statement | PBZ | 34 min |
| Jul 7, 6:40 PM EDT | Severe Thunderstorm Warning | PBZ | 20 min |
| Jul 7, 7:37 PM EDT | Severe Thunderstorm Warning | PBZ | 23 min |
| Jul 11, 2:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 11, 2:40 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 13, 4:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 16, 6:01 PM EDT | Special Weather Statement | PBZ | 29 min |
| Jul 17, 4:30 PM EDT | Severe Thunderstorm Warning | PBZ | 45 min |
| Jul 21, 4:44 AM EDT | Special Weather Statement | PBZ | 46 min |
| Jul 29, 11:58 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 29, 3:13 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 29, 6:32 PM EDT | Severe Thunderstorm Warning | PBZ | 28 min |
| Jul 29, 6:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 29, 8:32 PM EDT | Special Weather Statement | PBZ | 28 min |
| Jul 29, 8:51 PM EDT | Severe Thunderstorm Warning | PBZ | 39 min |
| Jul 29, 9:00 PM EDT | Areal Flood Advisory | PBZ | 2 hr |
| Jul 29, 9:31 PM EDT | Flash Flood Warning | PBZ | 2 hr |
| Aug 3, 5:39 PM EDT | Special Weather Statement | PBZ | 36 min |
| Aug 4, 8:22 PM EDT | Special Weather Statement | PBZ | 23 min |
| Aug 4, 8:50 PM EDT | Flash Flood Warning | PBZ | 115 min |
| Aug 10, 12:12 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 10, 3:52 PM EDT | Special Weather Statement | PBZ | 38 min |
| Aug 10, 3:57 PM EDT | Severe Thunderstorm Warning | PBZ | 13 min |
| Aug 12, 3:15 AM EDT | Heat Advisory | PBZ | 16 hr |
| Aug 12, 10:27 PM EDT | Special Weather Statement | PBZ | 48 min |
| Aug 13, 4:46 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 16, 4:17 PM EDT | Areal Flood Advisory | PBZ | 77 min |
| Aug 16, 6:27 PM EDT | Flash Flood Warning | PBZ | 3 hr |
| Aug 16, 7:18 PM EDT | Flash Flood Warning | PBZ | 2 hr |
| Aug 17, 1:28 PM EDT | Flash Flood Watch | PBZ | 27 hr |
| Aug 30, 4:33 AM EDT | Flash Flood Watch | PBZ | 57 hr |
| Sep 1, 7:21 AM EDT | Flash Flood Warning | PBZ | 6 hr |
| Sep 1, 1:15 PM EDT | Areal Flood Warning | PBZ | 2 hr |
| Sep 9, 6:28 AM EDT | Special Weather Statement | PBZ | 2 hr |
| Sep 22, 1:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 22, 2:23 PM EDT | Tornado Watch | SPC | 6 hr |
| Sep 22, 4:08 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Sep 28, 8:13 AM EDT | Special Weather Statement | PBZ | 32 min |
| Oct 28, 11:38 AM EDT | Wind Advisory | PBZ | 30 hr |
| Dec 10, 11:02 AM EST | Wind Advisory | PBZ | 34 hr |
| Dec 11, 10:18 AM EST | Special Weather Statement | PBZ | 27 min |
| Dec 25, 5:52 PM EST | Areal Flood Advisory | PBZ | 2 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 | 9 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 18 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 9 |
| Flash Flood Watch | 4 |
| Flood Watch | 1 |
| Areal Flood Advisory | 11 |
| Winter | |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 8 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Frost Advisory | 4 |
| Wind and dust | |
| High Wind Watch | 1 |
| Wind Advisory | 5 |
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.