Alert archive / West Virginia / Greenbrier County
Weather alerts in Greenbrier County, West Virginia, 2012
122 weather alerts in 2012, 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 2012. Tap one for its archive.
- Alerts
- 122
- Warnings
- 20
- Watches
- 9
- Advisories
- 10
- Busiest month
- July29 alerts
- Busiest day
- June 1, 20127 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, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 7 | 50% | 21 | 81% | 19 min |
| Flash flood warnings | 4 | 3 | 25% | 9 | 78% | 50 min |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Blacksburg, VA: tornado warnings | 17 | 0 | 100% | 0 | ||
| NWS Blacksburg, VA: severe thunderstorm warnings | 359 | 271 | 25% | 793 | 83% | 23 min |
| NWS Blacksburg, VA: flash flood warnings | 50 | 27 | 46% | 60 | 77% | 56 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 17, 3:26 PM EST | Special Weather Statement | RNK | 49 min |
| Jan 17, 3:29 PM EST | Special Weather Statement | RNK | 61 min |
| Jan 17, 4:20 PM EST | Special Weather Statement | RNK | 55 min |
| Jan 17, 5:24 PM EST | Special Weather Statement | RNK | 51 min |
| Jan 27, 2:34 AM EST | Mesoscale Discussion | SPC | 86 min |
| Jan 27, 2:45 AM EST | Severe Thunderstorm Warning | RNK | 45 min |
| Jan 27, 3:46 AM EST | Special Weather Statement | RNK | 59 min |
| Feb 24, 12:06 PM EST | Severe Thunderstorm Warning | RNK | 39 min |
| Feb 29, 3:23 PM EST | Mesoscale Discussion | SPC | 67 min |
| Feb 29, 3:43 PM EST | Tornado Watch | SPC | 5 hr |
| Feb 29, 4:07 PM EST | Severe Thunderstorm Warning | RNK | 53 min |
| Feb 29, 4:23 PM EST | Severe Thunderstorm Warning | RNK | 38 min |
| Feb 29, 4:34 PM EST | Areal Flood Advisory | RNK | 3 hr |
| Feb 29, 5:47 PM EST | Areal Flood Warning | RNK | 6 hr |
| Feb 29, 10:50 PM EST | Special Weather Statement | RNK | 40 min |
| Mar 2, 9:07 PM EST | Severe Thunderstorm Warning | RNK | 53 min |
| Mar 2, 9:52 PM EST | Areal Flood Warning | RNK | 6 hr |
| Mar 19, 2:53 AM EDT | Special Weather Statement | RNK | 37 min |
| Mar 19, 3:42 AM EDT | Mesoscale Discussion | SPC | 93 min |
| Mar 19, 4:47 AM EDT | Special Weather Statement | RNK | 28 min |
| Mar 19, 7:21 AM EDT | Areal Flood Advisory | RNK | 4 hr |
| Mar 19, 7:32 AM EDT | Special Weather Statement | RNK | 58 min |
| Mar 21, 1:22 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Mar 21, 5:35 PM EDT | Special Weather Statement | RNK | 25 min |
| Mar 21, 6:04 PM EDT | Special Weather Statement | RNK | 26 min |
| Mar 21, 6:31 PM EDT | Special Weather Statement | RNK | 29 min |
| Mar 21, 6:57 PM EDT | Flash Flood Warning | RNK | 5 hr |
| Mar 21, 7:25 PM EDT | Flash Flood Warning | RNK | 4 hr |
| Mar 24, 2:31 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Mar 24, 3:02 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 24, 4:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Mar 24, 6:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Mar 28, 12:43 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 28, 2:06 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 28, 4:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Apr 1, 9:10 PM EDT | Special Weather Statement | RNK | 65 min |
| Apr 26, 2:39 AM EDT | Special Weather Statement | RNK | 36 min |
| Apr 26, 3:55 AM EDT | Special Weather Statement | RNK | 35 min |
| Apr 26, 11:54 AM EDT | Areal Flood Advisory | RNK | 3 hr |
| Apr 26, 2:53 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Apr 26, 6:25 PM EDT | Special Weather Statement | RNK | 65 min |
| Apr 26, 6:51 PM EDT | Flash Flood Warning | RNK | 6 hr |
| Apr 28, 9:55 AM EDT | Severe Thunderstorm Warning | RNK | 40 min |
| May 1, 2:57 AM EDT | Special Weather Statement | RNK | 63 min |
| May 1, 2:58 AM EDT | Special Weather Statement | RNK | 62 min |
| May 3, 6:57 PM EDT | Special Weather Statement | RNK | 33 min |
| May 5, 1:03 AM EDT | Special Weather Statement | RNK | 117 min |
| May 5, 3:04 AM EDT | Special Weather Statement | RNK | 116 min |
| May 17, 3:17 PM EDT | Special Weather Statement | RNK | 58 min |
| May 17, 3:48 PM EDT | Flash Flood Warning | RNK | 3 hr |
| May 29, 4:16 PM EDT | Special Weather Statement | RNK | 59 min |
| May 29, 4:31 PM EDT | Special Weather Statement | RNK | 44 min |
| Jun 1, 1:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 1, 1:18 PM EDT | Special Weather Statement | RNK | 117 min |
| Jun 1, 1:28 PM EDT | Tornado Watch | SPC | 8 hr |
| Jun 1, 3:17 PM EDT | Special Weather Statement | RNK | 28 min |
| Jun 1, 3:35 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jun 1, 3:46 PM EDT | Special Weather Statement | RNK | 29 min |
| Jun 1, 4:16 PM EDT | Special Weather Statement | RNK | 29 min |
| Jun 17, 10:45 PM EDT | Special Weather Statement | RNK | 45 min |
| Jun 17, 11:30 PM EDT | Special Weather Statement | RNK | 45 min |
| Jun 21, 9:18 PM EDT | Special Weather Statement | RNK | 57 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, 7:01 PM EDT | Special Weather Statement | RNK | 44 min |
| Jun 29, 7:49 PM EDT | Severe Thunderstorm Warning | RNK | 71 min |
| Jun 29, 7:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jun 30, 7:39 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 30, 10:06 PM EDT | Special Weather Statement | RNK | 54 min |
| Jul 1, 5:52 AM EDT | Special Weather Statement | RNK | 38 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, 10:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 1, 10:38 PM EDT | Severe Thunderstorm Warning | RNK | 52 min |
| Jul 3, 2:15 PM EDT | Special Weather Statement | RNK | 60 min |
| Jul 3, 5:18 PM EDT | Special Weather Statement | RNK | 27 min |
| Jul 3, 5:31 PM EDT | Severe Thunderstorm Warning | RNK | 59 min |
| Jul 3, 5:58 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 5, 11:37 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 5, 2:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 4:02 PM EDT | Severe Thunderstorm Warning | RNK | 41 min |
| Jul 6, 4:25 PM EDT | Severe Thunderstorm Warning | RNK | 19 min |
| Jul 8, 1:29 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 8, 1:44 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 8, 4:21 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jul 10, 8:40 PM EDT | Special Weather Statement | RNK | 65 min |
| Jul 10, 9:33 PM EDT | Areal Flood Advisory | RNK | 117 min |
| Jul 18, 2:23 PM EDT | Severe Thunderstorm Warning | RNK | 62 min |
| Jul 18, 3:41 PM EDT | Special Weather Statement | RNK | 34 min |
| Jul 18, 5:46 PM EDT | Special Weather Statement | RNK | 29 min |
| Jul 18, 6:55 PM EDT | Special Weather Statement | RNK | 35 min |
| Jul 19, 4:48 PM EDT | Special Weather Statement | RNK | 57 min |
| Jul 24, 1:08 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 26, 10:47 PM EDT | Special Weather Statement | RNK | 58 min |
| Jul 31, 5:09 PM EDT | Special Weather Statement | RNK | 66 min |
| Jul 31, 5:48 PM EDT | Special Weather Statement | RNK | 57 min |
| Jul 31, 7:12 PM EDT | Special Weather Statement | RNK | 63 min |
| Jul 31, 8:21 PM EDT | Areal Flood Advisory | RNK | 112 min |
| Aug 1, 9:16 PM EDT | Special Weather Statement | RNK | 44 min |
| Aug 3, 2:43 PM EDT | Special Weather Statement | RNK | 62 min |
| Aug 3, 3:26 PM EDT | Areal Flood Advisory | RNK | 2 hr |
| Aug 3, 9:09 PM EDT | Special Weather Statement | RNK | 51 min |
| Aug 3, 9:36 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Aug 3, 10:30 PM EDT | Special Weather Statement | RNK | 30 min |
| Aug 4, 2:23 PM EDT | Special Weather Statement | RNK | 52 min |
| Aug 10, 11:45 AM EDT | Special Weather Statement | RNK | 75 min |
| Aug 10, 4:23 PM EDT | Special Weather Statement | RNK | 22 min |
| Aug 23, 6:05 PM EDT | Special Weather Statement | RNK | 55 min |
| Aug 23, 7:05 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Aug 23, 7:13 PM EDT | Special Weather Statement | RNK | 62 min |
| Aug 24, 5:57 PM EDT | Special Weather Statement | RNK | 48 min |
| Aug 24, 6:26 PM EDT | Severe Thunderstorm Warning | RNK | 49 min |
| Sep 1, 5:58 PM EDT | Special Weather Statement | RNK | 77 min |
| Sep 2, 7:27 PM EDT | Special Weather Statement | RNK | 63 min |
| Sep 5, 4:30 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Sep 8, 1:00 PM EDT | Special Weather Statement | RNK | 60 min |
| Sep 8, 1:37 PM EDT | Special Weather Statement | RNK | 53 min |
| Sep 18, 7:39 AM EDT | Special Weather Statement | RNK | 51 min |
| Oct 18, 5:11 PM EDT | Severe Thunderstorm Warning | RNK | 64 min |
| Oct 29, 2:51 PM EDT | Mesoscale Discussion | SPC | 6 hr |
| Oct 30, 1:02 PM EDT | Mesoscale Discussion | SPC | 5 hr |
| Dec 26, 6:46 AM EST | Mesoscale Discussion | SPC | 4 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 | 14 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 23 |
| Special Weather Statement | 60 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 4 |
| Areal Flood Advisory | 10 |
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.