Alert archive / West Virginia / Flash Flood Warnings
Flash Flood Warnings in West Virginia, 2024
65 flash flood warnings in 2024. 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 2024. Tap one for its archive.
- Flash Flood Warnings
- 65
- Busiest month
- May22 flash flood warnings
- Busiest day
- April 11, 20248 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.
34 of 65 flash flood warnings covering West Virginia in 2024 had a flash flood report inside them; 130 of 171 flash flood reports fell inside a warning, on average 146 minutes after it went out.
West Virginia, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Flash flood warnings | 65 | 34 | 48% | 171 | 76% | 146 min |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Baltimore/Washington: flash flood warnings | 59 | 26 | 56% | 60 | 82% | 97 min |
| NWS Blacksburg, VA: flash flood warnings | 89 | 53 | 40% | 210 | 73% | 169 min |
| NWS Pittsburgh, PA: flash flood warnings | 45 | 27 | 40% | 248 | 90% | 162 min |
| NWS Charleston, WV: flash flood warnings | 51 | 29 | 43% | 131 | 81% | 121 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 |
|---|---|---|---|---|
| Apr 2, 3:52 PM EDT | Flash Flood Warning | PBZ | Brooke, Hancock, Marshall, Ohio, Wetzel | 10 hr |
| Apr 11, 5:12 PM EDT | Flash Flood Warning | PBZ | Brooke, Marshall, Ohio, Wetzel | 8 hr |
| Apr 11, 5:32 PM EDT | Flash Flood Warning | PBZ | Brooke, Hancock | 7 hr |
| Apr 11, 5:33 PM EDT | Flash Flood Warning | RLX | Boone, Logan, Mingo | 6 hr |
| Apr 11, 5:41 PM EDT | Flash Flood Warning | RLX | Calhoun, Doddridge, Jackson, Mason, Pleasants, Ritchie and 4 more | 10 hr |
| Apr 11, 5:58 PM EDT | Flash Flood Warning | RLX | Boone, Cabell, Jackson, Kanawha, Lincoln, Mason and 2 more | 5 hr |
| Apr 11, 6:33 PM EDT | Flash Flood Warning | RLX | Boone, Clay, Fayette, Kanawha, Nicholas, Raleigh and 1 more | 5 hr |
| Apr 11, 7:14 PM EDT | Flash Flood Warning | PBZ | Marion, Monongalia, Wetzel | 6 hr |
| Apr 11, 7:40 PM EDT | Flash Flood Warning | RLX | Braxton, Calhoun, Clay, Doddridge, Gilmer, Harrison and 4 more | 5 hr |
| Apr 11, 8:09 PM EDT | Flash Flood Warning | RLX | Boone, Lincoln, Logan, Mingo, Wayne | 3 hr |
| Apr 11, 8:58 PM EDT | Flash Flood Warning | RLX | Jackson, Mason, Putnam, Wood | 4 hr |
| Apr 11, 9:10 PM EDT | Flash Flood Warning | PBZ | Monongalia, Preston | 4 hr |
| Apr 11, 11:55 PM EDT | Flash Flood Warning | RLX | Harrison | 2 hr |
| May 4, 2:44 PM EDT | Flash Flood Warning | RLX | McDowell, Mingo, Wyoming | 4 hr |
| May 5, 4:59 PM EDT | Flash Flood Warning | RLX | Mason | 2 hr |
| May 6, 3:29 PM EDT | Flash Flood Warning | PBZ | Marion, Wetzel | 3 hr |
| May 7, 4:24 PM EDT | Flash Flood Warning | RLX | McDowell, Wyoming | 3 hr |
| May 9, 3:20 AM EDT | Flash Flood Warning | PBZ | Wetzel | 85 min |
| May 9, 8:29 PM EDT | Flash Flood Warning | PBZ | Marion, Monongalia, Preston | 4 hr |
| May 14, 8:19 PM EDT | Flash Flood Warning | RLX | Wayne | 3 hr |
| May 15, 4:16 PM EDT | Flash Flood Warning | RLX | Fayette | 4 hr |
| May 17, 11:43 PM EDT | Flash Flood Warning | RLX | Cabell | 2 hr |
| May 18, 1:33 AM EDT | Flash Flood Warning | LWX | Mineral | 4 hr |
| May 21, 6:57 PM EDT | Flash Flood Warning | LWX | Grant, Pendleton | 3 hr |
| May 24, 3:14 AM EDT | Flash Flood Warning | RLX | Jackson, Kanawha, Putnam, Roane | 3 hr |
| May 24, 3:58 AM EDT | Flash Flood Warning | RLX | Clay, Kanawha | 2 hr |
| May 24, 4:22 AM EDT | Flash Flood Warning | RLX | Logan, Mingo | 3 hr |
| May 24, 10:00 PM EDT | Flash Flood Warning | RLX | Taylor | 3 hr |
| May 24, 11:48 PM EDT | Flash Flood Warning | PBZ | Marion, Monongalia | 117 min |
| May 25, 9:32 PM EDT | Flash Flood Warning | PBZ | Monongalia | 3 hr |
| May 25, 10:46 PM EDT | Flash Flood Warning | PBZ | Marion, Monongalia, Preston | 3 hr |
| May 25, 10:59 PM EDT | Flash Flood Warning | PBZ | Wetzel | 3 hr |
| May 25, 11:35 PM EDT | Flash Flood Warning | RLX | Barbour, Harrison, Taylor | 7 hr |
| May 26, 1:25 AM EDT | Flash Flood Warning | PBZ | Preston, Tucker | 3 hr |
| May 26, 3:28 AM EDT | Flash Flood Warning | RLX | Doddridge, Harrison, Lewis | 3 hr |
| Jun 17, 7:39 PM EDT | Flash Flood Warning | PBZ | Brooke, Hancock | 107 min |
| Jun 18, 8:00 PM EDT | Flash Flood Warning | RLX | Doddridge, Harrison, Tyler | 2 hr |
| Jul 5, 5:34 PM EDT | Flash Flood Warning | RNK | Monroe | 4 hr |
| Jul 5, 7:09 PM EDT | Flash Flood Warning | RLX | Jackson, Mason, Putnam | 57 min |
| Jul 6, 12:24 AM EDT | Flash Flood Warning | RLX | Jackson, Mason | 80 min |
| Jul 22, 7:46 AM EDT | Flash Flood Warning | RLX | Raleigh | 3 hr |
| Jul 22, 8:37 PM EDT | Flash Flood Warning | LWX | Berkeley | 68 min |
| Jul 23, 11:39 PM EDT | Flash Flood Warning | RLX | Roane, Wirt | 3 hr |
| Jul 24, 10:37 PM EDT | Flash Flood Warning | RLX | Pleasants, Tyler | 3 hr |
| Aug 6, 11:00 PM EDT | Flash Flood Warning | LWX | Jefferson | 3 hr |
| Aug 7, 8:09 PM EDT | Flash Flood Warning | RLX | Kanawha | 96 min |
| Aug 8, 9:07 PM EDT | Flash Flood Warning | LWX | Berkeley, Jefferson | 6 hr |
| Aug 8, 11:53 PM EDT | Flash Flood Warning | LWX | Berkeley, Morgan | 3 hr |
| Aug 9, 4:19 AM EDT | Flash Flood Warning | LWX | Hampshire, Hardy | 3 hr |
| Aug 9, 5:17 AM EDT | Flash Flood Warning | LWX | Berkeley, Hampshire, Hardy, Morgan | 2 hr |
| Aug 29, 2:37 PM EDT | Flash Flood Warning | RNK | Greenbrier | 4 hr |
| Aug 29, 3:51 PM EDT | Flash Flood Warning | LWX | Grant, Hardy | 97 min |
| Aug 29, 6:57 PM EDT | Flash Flood Warning | LWX | Mineral | 3 hr |
| Aug 30, 6:17 PM EDT | Flash Flood Warning | RNK | Mercer | 3 hr |
| Sep 25, 3:59 PM EDT | Flash Flood Warning | RLX | Raleigh | 3 hr |
| Sep 25, 6:57 PM EDT | Flash Flood Warning | RLX | Pocahontas | 3 hr |
| Sep 25, 8:15 PM EDT | Flash Flood Warning | RNK | Mercer | 6 hr |
| Sep 25, 11:31 PM EDT | Flash Flood Warning | RNK | Monroe | 4 hr |
| Sep 26, 12:38 AM EDT | Flash Flood Warning | RNK | Greenbrier, Monroe | 3 hr |
| Sep 26, 6:19 AM EDT | Flash Flood Warning | RNK | Mercer | 6 hr |
| Sep 27, 2:22 PM EDT | Flash Flood Warning | RLX | Cabell, Wayne | 5 hr |
| Sep 27, 2:45 PM EDT | Flash Flood Warning | RNK | Mercer, Monroe, Summers | 6 hr |
| Sep 29, 6:39 PM EDT | Flash Flood Warning | PBZ | Marshall | 2 hr |
| Sep 29, 6:52 PM EDT | Flash Flood Warning | RLX | Jackson, Mason | 3 hr |
| Sep 30, 6:44 PM EDT | Flash Flood Warning | RNK | Greenbrier, Monroe | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jackson County7
- Mason County7
- Wetzel County6
- Roane County6
- Monongalia County6
- Kanawha County5
- Marion County5
- Harrison County5
- Monroe County5
- Brooke County4
- Boone County4
- Mingo County4
- Doddridge County4
- Putnam County4
- Preston County4
- Berkeley County4
- Mercer County4
- Hancock County3
- Marshall County3
- Logan County3
- Tyler County3
- Cabell County3
- Clay County3
- Raleigh County3
- Taylor County3
- Wayne County3
- Hardy County3
- Greenbrier County3
- Ohio County2
- Calhoun County2
- Pleasants County2
- Ritchie County2
- Wirt County2
- Wood County2
- Lincoln County2
- Fayette County2
- Lewis County2
- McDowell County2
- Wyoming County2
- Mineral County2
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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.