Alert archive / West Virginia / Flash Flood Warnings
Flash Flood Warnings in West Virginia, 2013
70 flash flood warnings in 2013. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Flash Flood Warnings
- 70
- Busiest month
- July27 flash flood warnings
- Busiest day
- July 10, 20138 flash flood warnings
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
54 of 70 flash flood warnings covering West Virginia in 2013 had a flash flood report inside them; 105 of 144 flash flood reports fell inside a warning, on average 64 minutes after it went out.
West Virginia, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Flash flood warnings | 70 | 54 | 23% | 144 | 73% | 64 min |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Blacksburg, VA: flash flood warnings | 69 | 38 | 45% | 121 | 73% | 101 min |
| NWS Charleston, WV: flash flood warnings | 60 | 47 | 22% | 157 | 78% | 72 min |
| NWS Pittsburgh, PA: flash flood warnings | 48 | 37 | 23% | 127 | 87% | 80 min |
| NWS Baltimore/Washington: flash flood warnings | 81 | 51 | 37% | 124 | 78% | 74 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 | Counties | Lasted |
|---|---|---|---|---|
| Jan 30, 9:56 PM EST | Flash Flood Warning | LWX | Pendleton | 6 hr |
| Mar 18, 12:58 PM EDT | Flash Flood Warning | RLX | Cabell, Jackson, Mason, Putnam, Roane, Wayne | 3 hr |
| Apr 16, 8:17 PM EDT | Flash Flood Warning | PBZ | Brooke, Hancock | 3 hr |
| May 20, 10:40 AM EDT | Flash Flood Warning | RLX | McDowell | 3 hr |
| May 20, 6:23 PM EDT | Flash Flood Warning | LWX | Hardy | 3 hr |
| May 22, 3:06 PM EDT | Flash Flood Warning | LWX | Grant, Hardy, Pendleton | 3 hr |
| May 22, 5:16 PM EDT | Flash Flood Warning | LWX | Hampshire, Hardy | 3 hr |
| May 23, 4:12 PM EDT | Flash Flood Warning | LWX | Hampshire, Hardy | 5 hr |
| Jun 13, 2:34 AM EDT | Flash Flood Warning | PBZ | Brooke, Ohio | 4 hr |
| Jun 13, 7:09 AM EDT | Flash Flood Warning | RLX | Calhoun, Roane | 8 hr |
| Jun 13, 7:35 AM EDT | Flash Flood Warning | RLX | Braxton, Gilmer | 8 hr |
| Jun 13, 8:26 AM EDT | Flash Flood Warning | RLX | Braxton, Clay, Nicholas, Pocahontas, Randolph, Webster | 7 hr |
| Jun 13, 12:12 PM EDT | Flash Flood Warning | RLX | Taylor | 4 hr |
| Jun 13, 1:15 PM EDT | Flash Flood Warning | RLX | Harrison, Lewis | 3 hr |
| Jun 13, 3:16 PM EDT | Flash Flood Warning | LWX | Jefferson | 3 hr |
| Jun 17, 9:14 PM EDT | Flash Flood Warning | RLX | Raleigh | 3 hr |
| Jun 17, 10:09 PM EDT | Flash Flood Warning | RLX | Raleigh | 3 hr |
| Jun 18, 8:36 AM EDT | Flash Flood Warning | RLX | Roane | 3 hr |
| Jun 24, 7:18 PM EDT | Flash Flood Warning | RNK | Summers | 3 hr |
| Jun 28, 2:37 PM EDT | Flash Flood Warning | PBZ | Marion | 83 min |
| Jun 28, 4:58 PM EDT | Flash Flood Warning | RLX | Harrison, Taylor | 2 hr |
| Jun 28, 5:45 PM EDT | Flash Flood Warning | RLX | Barbour, Randolph, Upshur | 3 hr |
| Jul 1, 2:59 AM EDT | Flash Flood Warning | RLX | Cabell, Wayne | 3 hr |
| Jul 1, 9:19 PM EDT | Flash Flood Warning | RLX | Boone, Kanawha, Lincoln, Putnam | 3 hr |
| Jul 1, 10:34 PM EDT | Flash Flood Warning | RLX | Pleasants, Ritchie, Wood | 116 min |
| Jul 6, 5:55 PM EDT | Flash Flood Warning | RLX | Cabell, Wayne | 3 hr |
| Jul 7, 2:42 PM EDT | Flash Flood Warning | LWX | Hampshire, Hardy | 3 hr |
| Jul 9, 7:30 PM EDT | Flash Flood Warning | RLX | Tyler | 3 hr |
| Jul 9, 8:30 PM EDT | Flash Flood Warning | RLX | Harrison, Taylor | 3 hr |
| Jul 9, 8:48 PM EDT | Flash Flood Warning | PBZ | Marion, Monongalia | 3 hr |
| Jul 9, 10:49 PM EDT | Flash Flood Warning | RLX | Braxton, Lewis, Upshur | 3 hr |
| Jul 10, 12:26 AM EDT | Flash Flood Warning | RLX | Tyler | 3 hr |
| Jul 10, 6:49 AM EDT | Flash Flood Warning | PBZ | Hancock | 7 hr |
| Jul 10, 10:55 AM EDT | Flash Flood Warning | PBZ | Hancock | 3 hr |
| Jul 10, 5:25 PM EDT | Flash Flood Warning | PBZ | Hancock | 4 hr |
| Jul 10, 6:57 PM EDT | Flash Flood Warning | RLX | Doddridge, Pleasants, Ritchie, Tyler, Wood | 3 hr |
| Jul 11, 9:39 PM EDT | Flash Flood Warning | LWX | Grant, Hardy, Pendleton | 3 hr |
| Jul 12, 6:39 PM EDT | Flash Flood Warning | RLX | Boone, Jackson, Kanawha, Putnam, Roane | 3 hr |
| Jul 12, 7:57 PM EDT | Flash Flood Warning | RLX | Cabell, Lincoln, Putnam | 93 min |
| Jul 12, 9:22 PM EDT | Flash Flood Warning | RLX | Fayette, Nicholas | 5 hr |
| Jul 17, 8:04 PM EDT | Flash Flood Warning | RLX | Boone, Logan, McDowell, Mingo, Raleigh, Wyoming | 3 hr |
| Jul 19, 3:24 PM EDT | Flash Flood Warning | RLX | Doddridge, Pleasants, Ritchie, Tyler | 3 hr |
| Jul 19, 3:54 PM EDT | Flash Flood Warning | LWX | Pendleton | 3 hr |
| Jul 19, 8:00 PM EDT | Flash Flood Warning | RLX | Jackson, Mason, Putnam | 3 hr |
| Jul 19, 8:09 PM EDT | Flash Flood Warning | RNK | Greenbrier, Summers | 3 hr |
| Jul 19, 8:47 PM EDT | Flash Flood Warning | RLX | Jackson, Kanawha, Roane | 3 hr |
| Jul 21, 11:11 AM EDT | Flash Flood Warning | RLX | Clay, Kanawha | 3 hr |
| Jul 22, 7:43 PM EDT | Flash Flood Warning | LWX | Hardy | 3 hr |
| Jul 24, 3:15 AM EDT | Flash Flood Warning | RLX | Boone, Lincoln, Logan, Wayne | 3 hr |
| Aug 7, 4:19 PM EDT | Flash Flood Warning | LWX | Hardy | 3 hr |
| Aug 8, 3:56 PM EDT | Flash Flood Warning | RLX | Jackson, Putnam | 2 hr |
| Aug 10, 7:00 AM EDT | Flash Flood Warning | RLX | Clay, Kanawha | 3 hr |
| Aug 13, 12:23 AM EDT | Flash Flood Warning | RLX | Pleasants, Wood | 6 hr |
| Aug 13, 12:43 AM EDT | Flash Flood Warning | RLX | Doddridge, Pleasants, Ritchie, Tyler | 3 hr |
| Aug 13, 2:06 AM EDT | Flash Flood Warning | RLX | Harrison, Taylor | 6 hr |
| Aug 13, 3:49 AM EDT | Flash Flood Warning | RLX | Doddridge, Pleasants, Ritchie, Tyler | 3 hr |
| Aug 13, 4:38 AM EDT | Flash Flood Warning | RLX | Wirt, Wood | 3 hr |
| Aug 21, 5:33 PM EDT | Flash Flood Warning | RNK | Greenbrier | 4 hr |
| Aug 23, 4:04 AM EDT | Flash Flood Warning | RLX | Doddridge, Pleasants, Ritchie, Tyler, Wood | 4 hr |
| Aug 28, 5:38 PM EDT | Flash Flood Warning | RLX | Barbour, Harrison, Taylor, Upshur | 3 hr |
| Aug 28, 6:52 PM EDT | Flash Flood Warning | RLX | Lewis, Upshur | 3 hr |
| Aug 28, 7:23 PM EDT | Flash Flood Warning | RLX | Pocahontas, Randolph | 3 hr |
| Aug 28, 9:06 PM EDT | Flash Flood Warning | RLX | Pocahontas | 3 hr |
| Aug 28, 11:46 PM EDT | Flash Flood Warning | RLX | Pocahontas, Randolph | 3 hr |
| Sep 1, 7:35 PM EDT | Flash Flood Warning | LWX | Berkeley | 3 hr |
| Sep 2, 8:42 PM EDT | Flash Flood Warning | RLX | Harrison, Taylor | 3 hr |
| Sep 20, 6:19 AM EDT | Flash Flood Warning | RLX | Nicholas | 3 hr |
| Sep 20, 7:36 AM EDT | Flash Flood Warning | RLX | Fayette, Nicholas | 3 hr |
| Sep 20, 7:47 AM EDT | Flash Flood Warning | RNK | Greenbrier, Summers | 3 hr |
| Sep 20, 9:38 AM EDT | Flash Flood Warning | RNK | Greenbrier, Monroe, Summers | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Hardy County8
- Pleasants County7
- Tyler County7
- Putnam County6
- Taylor County6
- Harrison County6
- Ritchie County6
- Jackson County5
- Roane County5
- Kanawha County5
- Wood County5
- Doddridge County5
- Pendleton County4
- Cabell County4
- Wayne County4
- Hancock County4
- Nicholas County4
- Pocahontas County4
- Randolph County4
- Summers County4
- Upshur County4
- Boone County4
- Greenbrier County4
- Hampshire County3
- Braxton County3
- Clay County3
- Lewis County3
- Raleigh County3
- Lincoln County3
- Mason County2
- Brooke County2
- McDowell County2
- Grant County2
- Marion County2
- Barbour County2
- Fayette County2
- Logan County2
- Ohio County1
- Calhoun County1
- Gilmer County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20122014
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.