Alert archive / West Virginia / Preston County
Weather alerts in Preston County, West Virginia, 2012
87 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Preston County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 87
- Warnings
- 21
- Watches
- 6
- Advisories
- 2
- Busiest month
- July32 alerts
- Busiest day
- July 26, 20129 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Preston County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 18 | 15 | 17% | 11 | 82% | 13 min |
| Flash flood warnings | 1 | 1 | 0% | 2 | 100% | 52 min |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pittsburgh, PA: tornado warnings | 8 | 2 | 75% | 11 | 64% | 18 min |
| NWS Pittsburgh, PA: severe thunderstorm warnings | 209 | 165 | 21% | 502 | 80% | 26 min |
| NWS Pittsburgh, PA: flash flood warnings | 13 | 10 | 23% | 46 | 80% | 50 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 23, 3:26 PM EST | Mesoscale Discussion | SPC | 94 min |
| Jan 27, 2:34 AM EST | Mesoscale Discussion | SPC | 86 min |
| Jan 27, 2:53 AM EST | Special Weather Statement | PBZ | 82 min |
| Feb 22, 9:02 PM EST | Special Weather Statement | PBZ | 118 min |
| Feb 29, 3:37 PM EST | Special Weather Statement | PBZ | 23 min |
| Feb 29, 4:03 PM EST | Special Weather Statement | PBZ | 57 min |
| Feb 29, 4:35 PM EST | Flash Flood Warning | PBZ | 3 hr |
| Feb 29, 7:24 PM EST | Areal Flood Warning | PBZ | 8 hr |
| Mar 5, 11:39 AM EST | Special Weather Statement | PBZ | 51 min |
| Mar 28, 10:23 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 28, 12:41 PM EDT | Special Weather Statement | PBZ | 49 min |
| Mar 28, 12:43 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 28, 2:00 PM EDT | Severe Thunderstorm Warning | PBZ | 30 min |
| Mar 28, 2:15 PM EDT | Special Weather Statement | PBZ | 30 min |
| Mar 30, 5:32 PM EDT | Special Weather Statement | PBZ | 43 min |
| Mar 30, 10:58 PM EDT | Special Weather Statement | PBZ | 62 min |
| May 1, 11:28 PM EDT | Special Weather Statement | PBZ | 62 min |
| May 7, 5:54 PM EDT | Special Weather Statement | PBZ | 36 min |
| May 21, 5:45 PM EDT | Special Weather Statement | PBZ | 45 min |
| May 23, 4:41 PM EDT | Special Weather Statement | PBZ | 19 min |
| May 27, 1:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 27, 5:12 PM EDT | Severe Thunderstorm Warning | PBZ | 63 min |
| Jun 1, 1:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 1, 1:28 PM EDT | Tornado Watch | SPC | 8 hr |
| Jun 3, 1:37 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 9:35 PM EDT | Special Weather Statement | PBZ | 25 min |
| Jun 17, 11:06 PM EDT | Special Weather Statement | PBZ | 54 min |
| Jun 22, 1:40 PM EDT | Severe Thunderstorm Warning | PBZ | 35 min |
| Jun 22, 2:08 PM EDT | Special Weather Statement | PBZ | 67 min |
| Jun 29, 6:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 29, 6:34 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 29, 7:03 PM EDT | Severe Thunderstorm Warning | PBZ | 57 min |
| Jun 29, 7:51 PM EDT | Severe Thunderstorm Warning | PBZ | 54 min |
| Jun 29, 7:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jun 29, 8:11 PM EDT | Severe Thunderstorm Warning | PBZ | 64 min |
| Jul 1, 8:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 1, 9:06 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 1, 10:25 PM EDT | Special Weather Statement | PBZ | 35 min |
| Jul 1, 10:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 3, 5:25 PM EDT | Severe Thunderstorm Warning | PBZ | 53 min |
| Jul 3, 5:58 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 4, 4:04 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jul 4, 4:26 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 4, 8:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 4, 8:52 PM EDT | Special Weather Statement | PBZ | 38 min |
| Jul 4, 9:17 PM EDT | Severe Thunderstorm Warning | PBZ | 28 min |
| Jul 5, 2:49 AM EDT | Severe Thunderstorm Warning | PBZ | 56 min |
| Jul 8, 1:29 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 15, 8:34 PM EDT | Special Weather Statement | PBZ | 56 min |
| Jul 18, 1:16 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 18, 3:56 PM EDT | Special Weather Statement | PBZ | 49 min |
| Jul 24, 11:11 AM EDT | Special Weather Statement | PBZ | 34 min |
| Jul 24, 11:24 AM EDT | Severe Thunderstorm Warning | PBZ | 51 min |
| Jul 24, 11:48 AM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 26, 4:31 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 26, 5:26 AM EDT | Special Weather Statement | PBZ | 64 min |
| Jul 26, 1:16 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 26, 3:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 26, 5:50 PM EDT | Severe Thunderstorm Warning | PBZ | 55 min |
| Jul 26, 6:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 26, 6:37 PM EDT | Severe Thunderstorm Warning | PBZ | 68 min |
| Jul 26, 6:41 PM EDT | Severe Thunderstorm Warning | PBZ | 49 min |
| Jul 26, 7:25 PM EDT | Severe Thunderstorm Warning | PBZ | 80 min |
| Jul 28, 6:25 PM EDT | Special Weather Statement | PBZ | 50 min |
| Jul 31, 1:41 PM EDT | Severe Thunderstorm Warning | PBZ | 34 min |
| Jul 31, 4:51 PM EDT | Special Weather Statement | PBZ | 54 min |
| Jul 31, 5:41 PM EDT | Areal Flood Advisory | PBZ | 3 hr |
| Aug 9, 12:31 PM EDT | Severe Thunderstorm Warning | PBZ | 59 min |
| Aug 9, 1:51 PM EDT | Special Weather Statement | PBZ | 39 min |
| Aug 9, 2:24 PM EDT | Severe Thunderstorm Warning | PBZ | 51 min |
| Aug 9, 3:09 PM EDT | Areal Flood Advisory | PBZ | 3 hr |
| Aug 9, 3:48 PM EDT | Special Weather Statement | PBZ | 57 min |
| Aug 19, 5:54 PM EDT | Special Weather Statement | PBZ | 51 min |
| Sep 8, 5:00 AM EDT | Mesoscale Discussion | SPC | 60 min |
| Sep 8, 11:52 AM EDT | Special Weather Statement | PBZ | 68 min |
| Sep 18, 8:06 AM EDT | Special Weather Statement | PBZ | 54 min |
| Sep 27, 7:05 PM EDT | Special Weather Statement | PBZ | 40 min |
| Sep 27, 7:20 PM EDT | Special Weather Statement | PBZ | 40 min |
| Oct 18, 3:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Oct 18, 4:43 PM EDT | Special Weather Statement | PBZ | 47 min |
| Oct 18, 5:24 PM EDT | Special Weather Statement | PBZ | 36 min |
| Oct 18, 5:33 PM EDT | Severe Thunderstorm Warning | PBZ | 27 min |
| Oct 29, 6:00 PM EDT | Areal Flood Warning | PBZ | 18 hr |
| Oct 30, 4:34 AM EDT | Mesoscale Discussion | SPC | 4 hr |
| Oct 30, 1:02 PM EDT | Mesoscale Discussion | SPC | 5 hr |
| Dec 24, 10:34 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 26, 12:48 PM EST | Mesoscale Discussion | SPC | 6 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 | 18 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 33 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 1 |
| Areal Flood Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
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.