Alert archive / West Virginia / Grant County
Weather alerts in Grant County, West Virginia, 2011
211 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Grant County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 211
- Warnings
- 54
- Watches
- 38
- Advisories
- 44
- Busiest month
- April45 alerts
- Busiest day
- May 26, 201111 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 6 tornado warnings covering Grant County in 2011 had a tornado report inside them.
Grant County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 6 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 22 | 20 | 9% | 20 | 80% | 21 min |
| Flash flood warnings | 11 | 6 | 45% | 7 | 43% | 115 min |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Baltimore/Washington: tornado warnings | 96 | 27 | 72% | 45 | 67% | 11 min |
| NWS Baltimore/Washington: severe thunderstorm warnings | 440 | 335 | 24% | 963 | 78% | 18 min |
| NWS Baltimore/Washington: flash flood warnings | 170 | 99 | 42% | 341 | 84% | 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 | Lasted |
|---|---|---|---|
| Jan 6, 3:19 AM EST | Winter Weather Advisory | LWX | 37 hr |
| Jan 7, 6:50 PM EST | Winter Weather Advisory | LWX | 35 hr |
| Jan 8, 12:45 PM EST | Wind Chill Advisory | LWX | 20 hr |
| Jan 10, 9:39 PM EST | Winter Weather Advisory | LWX | 55 hr |
| Jan 12, 12:31 AM EST | Winter Storm Warning | LWX | 28 hr |
| Jan 12, 2:45 PM EST | Wind Chill Advisory | LWX | 19 hr |
| Jan 17, 2:44 PM EST | Winter Weather Advisory | LWX | 20 hr |
| Jan 20, 8:54 AM EST | Winter Weather Advisory | LWX | 24 hr |
| Jan 21, 3:48 AM EST | Wind Chill Advisory | LWX | 24 hr |
| Jan 22, 3:16 PM EST | Wind Chill Advisory | LWX | 30 hr |
| Jan 25, 10:16 AM EST | Winter Storm Watch | LWX | 18 hr |
| Jan 25, 6:02 PM EST | Winter Storm Warning | LWX | 29 hr |
| Jan 26, 7:30 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 26, 11:19 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 31, 4:07 AM EST | Winter Storm Watch | LWX | 32 hr |
| Jan 31, 2:40 PM EST | Winter Weather Advisory | LWX | 21 hr |
| Feb 1, 11:57 AM EST | Freezing Rain Advisory | LWX | 19 hr |
| Feb 2, 3:45 AM EST | Wind Advisory | LWX | 19 hr |
| Feb 4, 2:44 PM EST | Freezing Rain Advisory | LWX | 22 hr |
| Feb 5, 4:33 PM EST | Special Weather Statement | LWX | 57 min |
| Feb 5, 4:59 PM EST | Wind Advisory | LWX | 8 hr |
| Feb 8, 3:26 AM EST | Wind Advisory | LWX | 13 hr |
| Feb 8, 2:58 PM EST | Wind Chill Advisory | LWX | 19 hr |
| Feb 9, 3:16 PM EST | Wind Chill Advisory | LWX | 18 hr |
| Feb 14, 2:45 AM EST | Wind Advisory | LWX | 22 hr |
| Feb 14, 2:46 AM EST | Red Flag Warning | LWX | 15 hr |
| Feb 18, 3:16 AM EST | Fire Weather Watch | LWX | 11 hr |
| Feb 18, 10:30 AM EST | High Wind Watch | LWX | 7 hr |
| Feb 18, 2:03 PM EST | Red Flag Warning | LWX | 31 hr |
| Feb 18, 5:22 PM EST | High Wind Warning | LWX | 26 hr |
| Feb 18, 5:22 PM EST | Wind Advisory | LWX | 19 hr |
| Feb 19, 6:33 PM EST | Wind Advisory | LWX | 5 hr |
| Feb 21, 3:51 AM EST | Winter Storm Watch | LWX | 8 hr |
| Feb 21, 11:57 AM EST | Winter Storm Warning | LWX | 18 hr |
| Feb 21, 11:57 AM EST | Winter Weather Advisory | LWX | 18 hr |
| Feb 24, 4:05 AM EST | High Wind Watch | LWX | 10 hr |
| Feb 24, 5:43 AM EST | Freezing Rain Advisory | LWX | 3 hr |
| Feb 24, 1:41 PM EST | Wind Advisory | LWX | 24 hr |
| Feb 24, 8:36 PM EST | High Wind Warning | LWX | 22 hr |
| Feb 28, 8:36 AM EST | Mesoscale Discussion | SPC | 24 min |
| Feb 28, 8:57 AM EST | Tornado Watch | SPC | 9 hr |
| Mar 5, 3:16 AM EST | Flood Watch | LWX | 43 hr |
| Mar 6, 2:37 PM EST | Winter Weather Advisory | LWX | 12 hr |
| Mar 8, 3:14 AM EST | Flood Watch | LWX | 65 hr |
| Mar 9, 12:11 PM EST | Winter Weather Advisory | LWX | 9 hr |
| Mar 10, 3:25 PM EST | Winter Weather Advisory | LWX | 24 hr |
| Mar 10, 6:38 PM EST | Areal Flood Warning | LWX | 3 hr |
| Mar 23, 3:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Mar 23, 4:13 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 23, 6:12 PM EDT | Severe Thunderstorm Warning | LWX | 48 min |
| Mar 23, 6:44 PM EDT | Tornado Warning | LWX | 31 min |
| Mar 23, 6:55 PM EDT | Severe Thunderstorm Warning | LWX | 35 min |
| Mar 26, 4:09 AM EDT | Winter Weather Advisory | LWX | 30 hr |
| Mar 29, 3:18 PM EDT | Winter Weather Advisory | LWX | 21 hr |
| Mar 31, 12:29 AM EDT | Winter Weather Advisory | LWX | 8 hr |
| Apr 3, 7:52 PM EDT | Special Weather Statement | LWX | 23 min |
| Apr 4, 8:34 AM EDT | Wind Advisory | LWX | 22 hr |
| Apr 11, 12:24 PM EDT | Mesoscale Discussion | SPC | 36 min |
| Apr 12, 8:37 PM EDT | Flash Flood Warning | LWX | 82 min |
| Apr 15, 4:34 AM EDT | Flash Flood Watch | LWX | 41 hr |
| Apr 15, 11:54 AM EDT | Wind Advisory | LWX | 29 hr |
| Apr 16, 1:29 PM EDT | Tornado Watch | SPC | 8 hr |
| Apr 16, 3:34 PM EDT | Severe Thunderstorm Warning | LWX | 41 min |
| Apr 16, 3:43 PM EDT | Tornado Warning | LWX | 32 min |
| Apr 16, 3:54 PM EDT | Severe Thunderstorm Warning | LWX | 36 min |
| Apr 16, 9:20 PM EDT | Wind Advisory | LWX | 22 hr |
| Apr 16, 10:01 PM EDT | River Flood Warning | LWX | 4 hr |
| Apr 19, 9:52 AM EDT | Special Weather Statement | LWX | 53 min |
| Apr 19, 9:54 AM EDT | Flood Watch | LWX | 8 hr |
| Apr 19, 12:17 PM EDT | Areal Flood Warning | LWX | 12 hr |
| Apr 19, 3:21 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Apr 21, 2:05 PM EDT | Flood Watch | LWX | 44 hr |
| Apr 23, 4:06 AM EDT | Flash Flood Watch | LWX | 18 hr |
| Apr 23, 8:14 PM EDT | Special Weather Statement | LWX | 46 min |
| Apr 23, 8:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Apr 24, 9:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Apr 25, 6:53 PM EDT | Special Weather Statement | LWX | 37 min |
| Apr 26, 1:18 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Apr 26, 1:49 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Apr 26, 2:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 26, 4:34 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Apr 26, 6:59 PM EDT | Special Weather Statement | LWX | 46 min |
| Apr 26, 7:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Apr 26, 8:01 PM EDT | Severe Thunderstorm Warning | LWX | 44 min |
| Apr 26, 8:45 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Apr 27, 9:51 AM EDT | Flash Flood Watch | LWX | 29 hr |
| Apr 27, 1:23 PM EDT | Tornado Watch | SPC | 5 hr |
| Apr 27, 1:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Apr 27, 4:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Apr 27, 6:15 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 27, 10:39 PM EDT | Special Weather Statement | LWX | 111 min |
| Apr 28, 12:04 AM EDT | Severe Thunderstorm Warning | LWX | 71 min |
| Apr 28, 12:05 AM EDT | Flash Flood Warning | LWX | 5 hr |
| Apr 28, 12:27 AM EDT | Mesoscale Discussion | SPC | 63 min |
| Apr 28, 12:35 AM EDT | Flash Flood Warning | LWX | 5 hr |
| Apr 28, 12:35 AM EDT | Severe Thunderstorm Warning | LWX | 70 min |
| Apr 28, 12:41 AM EDT | Tornado Watch | SPC | 7 hr |
| Apr 28, 12:42 AM EDT | Tornado Warning | LWX | 28 min |
| Apr 28, 1:09 AM EDT | Severe Thunderstorm Warning | LWX | 66 min |
| Apr 28, 1:33 AM EDT | Flash Flood Warning | LWX | 4 hr |
| May 4, 12:50 PM EDT | Frost Advisory | LWX | 19 hr |
| May 12, 11:24 PM EDT | Special Weather Statement | LWX | 51 min |
| May 13, 7:58 AM EDT | Special Weather Statement | LWX | 32 min |
| May 13, 9:00 AM EDT | Flash Flood Watch | LWX | 12 hr |
| May 13, 1:43 PM EDT | Severe Thunderstorm Warning | LWX | 33 min |
| May 13, 2:36 PM EDT | Special Weather Statement | LWX | 39 min |
| May 13, 3:38 PM EDT | Flash Flood Warning | LWX | 2 hr |
| May 17, 3:45 AM EDT | Flash Flood Watch | LWX | 44 hr |
| May 17, 1:34 PM EDT | Areal Flood Warning | LWX | 6 hr |
| May 17, 7:41 PM EDT | Flash Flood Warning | LWX | 6 hr |
| May 17, 10:51 PM EDT | Flash Flood Warning | LWX | 3 hr |
| May 18, 1:46 AM EDT | Areal Flood Warning | LWX | 7 hr |
| May 18, 11:55 AM EDT | Mesoscale Discussion | SPC | 65 min |
| May 18, 11:57 AM EDT | Special Weather Statement | LWX | 48 min |
| May 18, 12:55 PM EDT | Special Weather Statement | LWX | 35 min |
| May 18, 12:55 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 18, 1:34 PM EDT | Special Weather Statement | LWX | 26 min |
| May 18, 1:52 PM EDT | Severe Thunderstorm Warning | LWX | 21 min |
| May 18, 3:08 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 18, 6:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| May 18, 8:49 PM EDT | Special Weather Statement | LWX | 26 min |
| May 19, 4:36 AM EDT | Flash Flood Watch | LWX | 14 hr |
| May 22, 11:14 PM EDT | Special Weather Statement | LWX | 46 min |
| May 23, 10:33 AM EDT | Mesoscale Discussion | SPC | 87 min |
| May 23, 10:48 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 23, 2:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| May 26, 1:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| May 26, 1:42 PM EDT | Severe Thunderstorm Watch | SPC | 11 hr |
| May 26, 2:50 PM EDT | Special Weather Statement | LWX | 25 min |
| May 26, 3:03 PM EDT | Severe Thunderstorm Warning | LWX | 42 min |
| May 26, 3:22 PM EDT | Special Weather Statement | LWX | 23 min |
| May 26, 3:40 PM EDT | Severe Thunderstorm Warning | LWX | 65 min |
| May 26, 4:09 PM EDT | Flash Flood Warning | LWX | 4 hr |
| May 26, 4:30 PM EDT | Mesoscale Discussion | SPC | 60 min |
| May 26, 4:41 PM EDT | Severe Thunderstorm Warning | LWX | 49 min |
| May 26, 4:55 PM EDT | Tornado Warning | LWX | 35 min |
| May 26, 5:16 PM EDT | Severe Thunderstorm Warning | LWX | 59 min |
| May 26, 10:53 PM EDT | Severe Thunderstorm Warning | LWX | 52 min |
| May 26, 11:07 PM EDT | Tornado Warning | LWX | 38 min |
| May 26, 11:32 PM EDT | Tornado Warning | LWX | 28 min |
| May 27, 4:38 AM EDT | Flash Flood Watch | LWX | 19 hr |
| May 27, 12:57 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 1, 2:24 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 1, 2:59 PM EDT | Special Weather Statement | LWX | 61 min |
| Jun 5, 3:08 AM EDT | Special Weather Statement | LWX | 22 min |
| Jun 9, 12:53 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 9, 6:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jun 9, 9:53 PM EDT | Special Weather Statement | LWX | 37 min |
| Jun 9, 10:28 PM EDT | Special Weather Statement | LWX | 47 min |
| Jun 12, 12:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 12, 1:48 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 16, 6:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 17, 7:19 PM EDT | Special Weather Statement | LWX | 26 min |
| Jun 17, 8:18 PM EDT | Special Weather Statement | LWX | 42 min |
| Jun 18, 12:44 AM EDT | Special Weather Statement | LWX | 46 min |
| Jun 18, 4:31 PM EDT | Special Weather Statement | LWX | 29 min |
| Jun 18, 5:58 PM EDT | Special Weather Statement | LWX | 32 min |
| Jun 18, 6:04 PM EDT | Severe Thunderstorm Warning | LWX | 26 min |
| Jun 19, 6:42 PM EDT | Flash Flood Watch | LWX | 10 hr |
| Jun 21, 9:48 PM EDT | Special Weather Statement | LWX | 27 min |
| Jul 3, 3:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jul 3, 4:21 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 4, 1:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 7, 7:24 PM EDT | Special Weather Statement | LWX | 36 min |
| Jul 7, 7:44 PM EDT | Special Weather Statement | LWX | 31 min |
| Jul 7, 7:49 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Jul 8, 11:44 AM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 8, 1:26 PM EDT | Special Weather Statement | LWX | 94 min |
| Jul 9, 4:19 AM EDT | Dense Fog Advisory | LWX | 4 hr |
| Jul 11, 5:47 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 11, 5:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 11, 6:54 PM EDT | Severe Thunderstorm Warning | LWX | 37 min |
| Jul 20, 8:16 PM EDT | Heat Advisory | LWX | 24 hr |
| Jul 20, 8:16 PM EDT | Heat Advisory | LWX | 48 hr |
| Jul 21, 3:38 PM EDT | Heat Advisory | LWX | 52 hr |
| Jul 22, 2:10 PM EDT | Severe Thunderstorm Warning | LWX | 32 min |
| Jul 22, 3:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jul 22, 4:25 PM EDT | Severe Thunderstorm Warning | LWX | 50 min |
| Jul 22, 5:07 PM EDT | Severe Thunderstorm Warning | LWX | 38 min |
| Jul 22, 5:22 PM EDT | Flash Flood Warning | LWX | 119 min |
| Jul 22, 5:43 PM EDT | Special Weather Statement | LWX | 32 min |
| Aug 1, 3:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Aug 14, 3:47 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Aug 14, 5:06 PM EDT | Special Weather Statement | LWX | 24 min |
| Sep 4, 3:15 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Sep 4, 3:42 PM EDT | Special Weather Statement | LWX | 48 min |
| Sep 4, 4:10 PM EDT | Special Weather Statement | LWX | 50 min |
| Sep 4, 4:20 PM EDT | Severe Thunderstorm Warning | LWX | 40 min |
| Sep 4, 5:07 PM EDT | Special Weather Statement | LWX | 23 min |
| Sep 4, 7:22 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Sep 5, 4:06 AM EDT | Flash Flood Watch | LWX | 5 days |
| Sep 6, 5:24 PM EDT | Areal Flood Warning | LWX | 12 hr |
| Sep 11, 6:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Sep 12, 4:37 PM EDT | Special Weather Statement | LWX | 23 min |
| Sep 14, 3:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Sep 15, 2:44 AM EDT | Special Weather Statement | LWX | 31 min |
| Sep 23, 9:31 PM EDT | Dense Fog Advisory | LWX | 11 hr |
| Oct 7, 2:47 PM EDT | Dense Fog Advisory | LWX | 15 hr |
| Oct 8, 9:20 AM EDT | Dense Fog Advisory | LWX | 100 min |
| Oct 14, 6:48 PM EDT | Wind Advisory | LWX | 23 hr |
| Oct 28, 3:36 AM EDT | Winter Storm Watch | LWX | 15 hr |
| Oct 28, 2:31 PM EDT | Winter Storm Warning | LWX | 27 hr |
| Oct 29, 12:34 AM EDT | Mesoscale Discussion | SPC | 6 hr |
| Oct 29, 7:36 AM EDT | Mesoscale Discussion | SPC | 5 hr |
| Nov 23, 3:12 AM EST | Wind Advisory | LWX | 16 hr |
| Dec 6, 1:45 PM EST | Winter Storm Watch | LWX | 15 hr |
| Dec 6, 8:24 PM EST | Flood Watch | LWX | 29 hr |
| Dec 7, 4:30 AM EST | Winter Storm Warning | LWX | 18 hr |
| Dec 7, 4:30 AM EST | Winter Weather Advisory | LWX | 20 hr |
| Dec 7, 2:44 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Dec 27, 6:37 AM EST | Winter Weather Advisory | LWX | 23 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 | 22 |
| Tornado Warning | 6 |
| Severe Thunderstorm Watch | 11 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 38 |
| Special Weather Statement | 37 |
| Flooding | |
| Areal Flood Warning | 5 |
| Flash Flood Warning | 11 |
| River Flood Warning | 1 |
| Flash Flood Watch | 9 |
| Flood Watch | 5 |
| Winter | |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 5 |
| Freezing Rain Advisory | 3 |
| Winter Weather Advisory | 15 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Frost Advisory | 1 |
| Wind Chill Advisory | 6 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 2 |
| Wind Advisory | 12 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20102012
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.