Alert archive / West Virginia / McDowell County
Weather alerts in McDowell County, West Virginia, 2009
97 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
McDowell County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 97
- Warnings
- 22
- Watches
- 31
- Advisories
- 19
- Busiest month
- May27 alerts
- Busiest day
- May 9, 20099 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering McDowell County in 2009 had a tornado report inside them.
McDowell County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 9 | 3 | 67% | 6 | 67% | 33 min |
| Flash flood warnings | 3 | 1 | 67% | 0 |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Charleston, WV: tornado warnings | 7 | 1 | 86% | 1 | 100% | 9 min |
| NWS Charleston, WV: severe thunderstorm warnings | 160 | 67 | 58% | 209 | 77% | 24 min |
| NWS Charleston, WV: flash flood warnings | 30 | 10 | 67% | 24 | 92% | 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 6, 4:21 AM EST | Flood Watch | RLX | 32 hr |
| Jan 7, 1:47 AM EST | Areal Flood Advisory | RLX | 10 hr |
| Jan 7, 2:38 PM EST | Winter Weather Advisory | RLX | 29 hr |
| Jan 15, 5:22 AM EST | Wind Chill Advisory | RLX | 31 hr |
| Jan 17, 11:36 PM EST | Freezing Rain Advisory | RLX | 11 hr |
| Jan 18, 11:18 AM EST | Winter Weather Advisory | RLX | 26 hr |
| Jan 27, 4:14 AM EST | Flood Watch | RLX | 36 hr |
| Jan 27, 4:32 AM EST | Freezing Rain Advisory | RLX | 5 hr |
| Jan 27, 7:06 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 2, 3:03 PM EST | Winter Storm Warning | RLX | 61 hr |
| Feb 3, 3:15 AM EST | Winter Weather Advisory | RLX | 25 hr |
| Feb 10, 3:47 AM EST | High Wind Watch | RLX | 25 hr |
| Feb 11, 4:17 AM EST | High Wind Warning | RLX | 41 hr |
| Feb 11, 1:59 PM EST | Tornado Watch | SPC | 7 hr |
| Feb 11, 4:34 PM EST | Mesoscale Discussion | SPC | 86 min |
| Feb 11, 5:32 PM EST | Mesoscale Discussion | SPC | 88 min |
| Feb 11, 5:42 PM EST | Severe Thunderstorm Warning | RLX | 63 min |
| Feb 12, 4:36 AM EST | Wind Advisory | RLX | 12 hr |
| Feb 18, 3:40 PM EST | Mesoscale Discussion | SPC | 95 min |
| Feb 22, 9:14 AM EST | Winter Weather Advisory | RLX | 10 hr |
| Feb 28, 3:41 AM EST | Winter Weather Advisory | RLX | 30 hr |
| Mar 12, 2:59 PM EDT | Winter Weather Advisory | RLX | 18 hr |
| Mar 12, 10:39 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 5, 7:29 PM EDT | Wind Advisory | RLX | 9 hr |
| Apr 5, 8:53 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 10, 4:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| May 3, 2:56 PM EDT | Flood Watch | RLX | 25 hr |
| May 5, 4:58 PM EDT | Flood Watch | RLX | 37 hr |
| May 8, 3:57 AM EDT | Flood Watch | RLX | 38 hr |
| May 8, 6:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| May 8, 6:32 PM EDT | Tornado Watch | SPC | 7 hr |
| May 8, 8:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| May 8, 9:02 PM EDT | Severe Thunderstorm Warning | RLX | 28 min |
| May 8, 9:17 PM EDT | Areal Flood Advisory | RLX | 4 hr |
| May 8, 9:35 PM EDT | Tornado Warning | RLX | 10 min |
| May 8, 11:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| May 9, 1:24 AM EDT | Areal Flood Advisory | RLX | 3 hr |
| May 9, 4:04 AM EDT | Areal Flood Warning | RLX | 7 hr |
| May 9, 9:43 AM EDT | Areal Flood Warning | RLX | 4 hr |
| May 9, 10:58 AM EDT | Areal Flood Warning | RLX | 5 hr |
| May 18, 4:22 AM EDT | Frost Advisory | RLX | 28 hr |
| May 27, 1:45 PM EDT | Flash Flood Watch | RLX | 38 hr |
| May 28, 2:21 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 28, 4:54 PM EDT | Mesoscale Discussion | SPC | 66 min |
| May 28, 7:34 PM EDT | Mesoscale Discussion | SPC | 56 min |
| May 29, 12:22 AM EDT | Severe Thunderstorm Warning | RLX | 53 min |
| May 30, 4:49 PM EDT | Severe Thunderstorm Watch | SPC | 11 hr |
| May 30, 7:01 PM EDT | Mesoscale Discussion | SPC | 59 min |
| May 30, 9:53 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 30, 11:37 PM EDT | Mesoscale Discussion | SPC | 23 min |
| May 31, 2:02 AM EDT | Severe Thunderstorm Warning | RLX | 43 min |
| May 31, 2:16 AM EDT | Severe Thunderstorm Warning | RLX | 59 min |
| May 31, 2:54 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 2, 3:18 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 2, 9:08 PM EDT | Severe Thunderstorm Warning | RLX | 37 min |
| Jun 3, 11:52 AM EDT | Flash Flood Watch | RLX | 46 hr |
| Jun 3, 1:06 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 3, 3:17 PM EDT | Severe Thunderstorm Warning | RLX | 43 min |
| Jun 3, 4:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jun 3, 7:10 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 8, 3:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 10, 2:41 PM EDT | Flash Flood Watch | RLX | 4 hr |
| Jun 11, 10:57 AM EDT | Flash Flood Watch | RLX | 20 hr |
| Jun 11, 5:24 PM EDT | Flash Flood Warning | RLX | 114 min |
| Jun 14, 6:30 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 16, 3:29 PM EDT | Flash Flood Watch | RLX | 29 hr |
| Jun 16, 8:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jun 28, 4:04 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jul 9, 4:02 PM EDT | Severe Thunderstorm Warning | RLX | 28 min |
| Jul 9, 6:19 PM EDT | Flash Flood Warning | RLX | 86 min |
| Jul 20, 6:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jul 26, 1:35 AM EDT | Flash Flood Watch | RLX | 5 hr |
| Jul 26, 10:22 AM EDT | Flash Flood Watch | RLX | 6 hr |
| Jul 28, 2:52 PM EDT | Flood Watch | RLX | 20 hr |
| Jul 30, 2:45 PM EDT | Flash Flood Watch | RLX | 22 hr |
| Aug 1, 2:46 PM EDT | Flash Flood Watch | RLX | 21 hr |
| Aug 4, 1:58 PM EDT | Flash Flood Watch | RLX | 22 hr |
| Aug 5, 2:41 PM EDT | Severe Thunderstorm Warning | RLX | 51 min |
| Aug 11, 1:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 12, 1:35 PM EDT | Flash Flood Watch | RLX | 8 hr |
| Aug 19, 12:16 PM EDT | Flash Flood Watch | RLX | 8 hr |
| Aug 19, 2:49 PM EDT | Flash Flood Warning | RLX | 3 hr |
| Sep 25, 3:18 PM EDT | Flash Flood Watch | RLX | 30 hr |
| Oct 9, 5:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Oct 17, 2:44 PM EDT | Freeze Watch | RLX | 19 hr |
| Oct 18, 9:57 AM EDT | Freeze Warning | RLX | 24 hr |
| Dec 1, 2:58 PM EST | Wind Advisory | RLX | 37 hr |
| Dec 4, 2:55 PM EST | Winter Weather Advisory | RLX | 26 hr |
| Dec 8, 5:20 AM EST | Wind Advisory | RLX | 5 hr |
| Dec 8, 10:14 AM EST | High Wind Warning | RLX | 36 hr |
| Dec 17, 3:52 PM EST | Winter Storm Watch | RLX | 13 hr |
| Dec 18, 4:30 AM EST | Winter Storm Warning | RLX | 47 hr |
| Dec 18, 7:22 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 19, 12:34 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 23, 3:38 PM EST | High Wind Watch | RLX | 13 hr |
| Dec 24, 4:20 AM EST | Wind Advisory | RLX | 21 hr |
| Dec 25, 1:23 AM EST | High Wind Warning | RLX | 15 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20082010
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.