Alert archive / West Virginia / Greenbrier County
Weather alerts in Greenbrier County, West Virginia, 2010
119 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Greenbrier County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 119
- Warnings
- 34
- Watches
- 9
- Advisories
- 0
- Busiest month
- May32 alerts
- Busiest day
- May 27, 201011 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Greenbrier County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 18 | 12 | 33% | 19 | 89% | 31 min |
| Flash flood warnings | 5 | 3 | 40% | 5 | 100% | 117 min |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Blacksburg, VA: tornado warnings | 31 | 2 | 94% | 7 | 43% | 3 min |
| NWS Blacksburg, VA: severe thunderstorm warnings | 344 | 275 | 20% | 845 | 76% | 23 min |
| NWS Blacksburg, VA: flash flood warnings | 111 | 62 | 44% | 205 | 90% | 130 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 21, 4:36 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 24, 12:15 PM EST | River Flood Warning | RNK | 48 hr |
| Jan 24, 10:35 PM EST | Flash Flood Warning | RNK | 6 hr |
| Jan 25, 4:28 AM EST | Areal Flood Warning | RNK | 6 hr |
| Jan 25, 10:32 AM EST | Areal Flood Warning | RNK | 16 hr |
| Jan 25, 7:17 PM EST | Special Weather Statement | RNK | 58 min |
| Jan 30, 3:56 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 5, 7:06 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 5, 11:45 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 5, 12:55 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 12, 3:23 AM EST | Areal Flood Warning | RNK | 6 hr |
| Mar 12, 10:49 AM EST | River Flood Warning | RNK | 38 hr |
| Mar 12, 6:36 PM EST | Areal Flood Warning | RNK | 12 hr |
| Mar 13, 4:25 AM EST | Flash Flood Warning | RNK | 9 hr |
| Mar 13, 1:06 PM EST | Areal Flood Warning | RNK | 14 hr |
| Mar 14, 3:47 AM EDT | Areal Flood Warning | RNK | 6 hr |
| Mar 14, 9:51 AM EDT | Areal Flood Warning | RNK | 6 hr |
| Mar 14, 3:19 PM EDT | Areal Flood Warning | RNK | 4 hr |
| Mar 22, 5:24 AM EDT | Special Weather Statement | RNK | 66 min |
| Apr 5, 9:33 PM EDT | Severe Thunderstorm Warning | RNK | 57 min |
| Apr 5, 10:19 PM EDT | Severe Thunderstorm Warning | RNK | 56 min |
| Apr 5, 10:36 PM EDT | Severe Thunderstorm Warning | RNK | 84 min |
| Apr 5, 11:53 PM EDT | Severe Thunderstorm Warning | RNK | 52 min |
| Apr 5, 11:56 PM EDT | Severe Thunderstorm Warning | RNK | 79 min |
| Apr 8, 4:11 PM EDT | Special Weather Statement | RNK | 64 min |
| May 1, 9:41 PM EDT | Special Weather Statement | RNK | 49 min |
| May 3, 3:42 AM EDT | Special Weather Statement | RNK | 63 min |
| May 3, 4:23 AM EDT | Special Weather Statement | RNK | 52 min |
| May 8, 3:46 AM EDT | Special Weather Statement | RNK | 89 min |
| May 8, 4:20 AM EDT | Special Weather Statement | RNK | 55 min |
| May 8, 4:52 AM EDT | Special Weather Statement | RNK | 53 min |
| May 12, 1:41 PM EDT | Special Weather Statement | RNK | 79 min |
| May 12, 2:20 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 12, 8:08 PM EDT | Special Weather Statement | RNK | 37 min |
| May 14, 2:29 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 14, 7:19 PM EDT | Special Weather Statement | RNK | 56 min |
| May 14, 7:33 PM EDT | Severe Thunderstorm Warning | RNK | 29 min |
| May 16, 5:24 PM EDT | Special Weather Statement | RNK | 36 min |
| May 16, 5:55 PM EDT | Flash Flood Warning | RNK | 6 hr |
| May 17, 12:08 AM EDT | Areal Flood Warning | RNK | 5 hr |
| May 27, 11:16 AM EDT | Special Weather Statement | RNK | 29 min |
| May 27, 11:23 AM EDT | Special Weather Statement | RNK | 22 min |
| May 27, 11:45 AM EDT | Special Weather Statement | RNK | 30 min |
| May 27, 11:54 AM EDT | Flash Flood Warning | RNK | 6 hr |
| May 27, 12:19 PM EDT | Special Weather Statement | RNK | 41 min |
| May 27, 12:25 PM EDT | Special Weather Statement | RNK | 50 min |
| May 27, 12:49 PM EDT | Flash Flood Warning | RNK | 119 min |
| May 27, 12:56 PM EDT | Severe Thunderstorm Warning | RNK | 64 min |
| May 27, 1:20 PM EDT | Severe Thunderstorm Warning | RNK | 43 min |
| May 27, 1:57 PM EDT | Special Weather Statement | RNK | 33 min |
| May 27, 2:05 PM EDT | Severe Thunderstorm Warning | RNK | 55 min |
| May 28, 1:52 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 28, 2:13 PM EDT | Special Weather Statement | RNK | 62 min |
| May 28, 4:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| May 31, 12:39 PM EDT | Special Weather Statement | RNK | 66 min |
| May 31, 2:32 PM EDT | Special Weather Statement | RNK | 28 min |
| May 31, 3:00 PM EDT | Special Weather Statement | RNK | 30 min |
| Jun 3, 11:06 PM EDT | Special Weather Statement | RNK | 69 min |
| Jun 4, 12:06 AM EDT | Special Weather Statement | RNK | 54 min |
| Jun 4, 4:14 PM EDT | Special Weather Statement | RNK | 61 min |
| Jun 6, 1:45 PM EDT | Special Weather Statement | RNK | 60 min |
| Jun 6, 2:50 PM EDT | Special Weather Statement | RNK | 55 min |
| Jun 12, 10:28 AM EDT | Special Weather Statement | RNK | 62 min |
| Jun 12, 11:36 AM EDT | Special Weather Statement | RNK | 54 min |
| Jun 19, 5:16 PM EDT | Special Weather Statement | RNK | 59 min |
| Jun 24, 2:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jun 24, 3:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 24, 3:14 PM EDT | Special Weather Statement | RNK | 61 min |
| Jun 24, 4:09 PM EDT | Special Weather Statement | RNK | 66 min |
| Jun 28, 12:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 28, 1:29 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jun 28, 4:01 PM EDT | Special Weather Statement | RNK | 59 min |
| Jun 28, 4:13 PM EDT | Severe Thunderstorm Warning | RNK | 62 min |
| Jul 17, 8:20 AM EDT | Special Weather Statement | RNK | 55 min |
| Jul 17, 9:03 AM EDT | Severe Thunderstorm Warning | RNK | 57 min |
| Jul 17, 9:50 AM EDT | Severe Thunderstorm Warning | RNK | 55 min |
| Jul 18, 10:06 PM EDT | Special Weather Statement | RNK | 39 min |
| Jul 20, 12:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 20, 1:29 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 20, 4:20 PM EDT | Special Weather Statement | RNK | 55 min |
| Jul 20, 5:19 PM EDT | Severe Thunderstorm Warning | RNK | 56 min |
| Jul 21, 12:06 AM EDT | Special Weather Statement | RNK | 114 min |
| Jul 21, 3:42 AM EDT | Special Weather Statement | RNK | 78 min |
| Jul 25, 1:21 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jul 25, 1:46 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 25, 2:33 PM EDT | Special Weather Statement | RNK | 57 min |
| Jul 25, 3:25 PM EDT | Severe Thunderstorm Warning | RNK | 65 min |
| Jul 25, 3:25 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Jul 27, 6:36 PM EDT | Special Weather Statement | RNK | 54 min |
| Jul 31, 8:47 PM EDT | Special Weather Statement | RNK | 43 min |
| Jul 31, 9:31 PM EDT | Special Weather Statement | RNK | 59 min |
| Aug 4, 6:50 AM EDT | Special Weather Statement | RNK | 40 min |
| Aug 4, 8:12 AM EDT | Special Weather Statement | RNK | 63 min |
| Aug 4, 5:52 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 4, 6:12 PM EDT | Severe Thunderstorm Warning | RNK | 63 min |
| Aug 4, 7:13 PM EDT | Severe Thunderstorm Warning | RNK | 62 min |
| Aug 4, 7:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 5, 6:15 AM EDT | Special Weather Statement | RNK | 45 min |
| Aug 5, 1:19 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 5, 2:57 PM EDT | Severe Thunderstorm Warning | RNK | 63 min |
| Aug 5, 3:56 PM EDT | Severe Thunderstorm Warning | RNK | 47 min |
| Aug 5, 3:56 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Aug 18, 1:00 PM EDT | Special Weather Statement | RNK | 60 min |
| Sep 3, 5:14 PM EDT | Special Weather Statement | RNK | 61 min |
| Oct 13, 3:24 PM EDT | Special Weather Statement | RNK | 36 min |
| Oct 13, 6:15 PM EDT | Special Weather Statement | RNK | 30 min |
| Oct 26, 1:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Oct 26, 5:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Oct 26, 6:21 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Oct 26, 7:19 PM EDT | Tornado Watch | SPC | 12 hr |
| Oct 26, 9:55 PM EDT | Special Weather Statement | RNK | 65 min |
| Oct 26, 11:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Oct 27, 12:24 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Nov 30, 10:29 PM EST | Special Weather Statement | RNK | 61 min |
| Nov 30, 11:30 PM EST | Special Weather Statement | RNK | 60 min |
| Dec 16, 4:17 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 22, 5:11 PM EST | Special Weather Statement | RNK | 109 min |
| Dec 22, 6:43 PM EST | Special Weather Statement | RNK | 2 hr |
| Dec 30, 2:48 AM EST | Special Weather Statement | RNK | 87 min |
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 | 8 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 20 |
| Special Weather Statement | 56 |
| Flooding | |
| Areal Flood Warning | 9 |
| Flash Flood Warning | 5 |
| River Flood Warning | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20092011
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.