Alert archive / Virginia / King George County
Weather alerts in King George County, Virginia, 2017
84 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
King George County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 84
- Warnings
- 17
- Watches
- 13
- Advisories
- 29
- Busiest month
- May16 alerts
- Busiest day
- August 18, 20175 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 reports fell inside a warning.
King George County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 1 | 0% | |||
| Severe thunderstorm warnings | 15 | 10 | 33% | 20 | 95% | 10 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Baltimore/Washington: tornado warnings | 11 | 4 | 64% | 18 | 33% | 7 min |
| NWS Baltimore/Washington: severe thunderstorm warnings | 261 | 194 | 26% | 976 | 81% | 19 min |
| NWS Baltimore/Washington: flash flood warnings | 49 | 34 | 31% | 130 | 81% | 78 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, 8:48 AM EST | Winter Weather Advisory | LWX | 30 hr |
| Jan 22, 1:51 PM EST | Wind Advisory | LWX | 26 hr |
| Jan 23, 1:42 AM EST | Coastal Flood Advisory | LWX | 35 hr |
| Feb 9, 8:57 AM EST | Wind Advisory | LWX | 9 hr |
| Feb 12, 3:36 AM EST | Wind Advisory | LWX | 37 hr |
| Feb 25, 12:24 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 25, 1:30 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
| Feb 25, 2:27 PM EST | Severe Thunderstorm Warning | LWX | 48 min |
| Mar 1, 9:44 AM EST | Mesoscale Discussion | SPC | 91 min |
| Mar 1, 10:38 AM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 1, 1:05 PM EST | Severe Thunderstorm Warning | LWX | 40 min |
| Mar 1, 1:36 PM EST | Severe Thunderstorm Warning | LWX | 54 min |
| Mar 15, 3:52 AM EDT | Wind Advisory | LWX | 16 hr |
| Mar 21, 10:00 AM EDT | Special Weather Statement | LWX | 15 min |
| Mar 27, 4:37 AM EDT | Dense Fog Advisory | LWX | 5 hr |
| Apr 6, 5:59 AM EDT | Mesoscale Discussion | SPC | 91 min |
| Apr 6, 11:41 AM EDT | Severe Thunderstorm Warning | LWX | 38 min |
| Apr 6, 12:18 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Apr 6, 12:45 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 8, 2:10 PM EDT | Frost Advisory | LWX | 18 hr |
| Apr 21, 4:19 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Apr 21, 7:02 PM EDT | Severe Thunderstorm Warning | LWX | 28 min |
| Apr 24, 11:38 AM EDT | Coastal Flood Advisory | LWX | 47 hr |
| Apr 30, 3:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| May 1, 5:54 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 1, 8:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| May 4, 3:42 PM EDT | Coastal Flood Advisory | LWX | 58 hr |
| May 5, 7:49 AM EDT | Severe Thunderstorm Warning | LWX | 56 min |
| May 5, 6:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| May 12, 2:43 PM EDT | Coastal Flood Advisory | LWX | 21 hr |
| May 19, 4:49 PM EDT | Severe Thunderstorm Warning | LWX | 30 min |
| May 19, 5:26 PM EDT | Severe Thunderstorm Warning | LWX | 49 min |
| May 24, 2:43 PM EDT | Coastal Flood Advisory | LWX | 46 hr |
| May 25, 12:59 PM EDT | Mesoscale Discussion | SPC | 61 min |
| May 25, 4:26 PM EDT | Severe Thunderstorm Warning | LWX | 49 min |
| May 27, 3:38 PM EDT | Coastal Flood Advisory | LWX | 5 days |
| May 30, 5:56 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 30, 7:07 PM EDT | Severe Thunderstorm Warning | LWX | 53 min |
| May 30, 7:57 PM EDT | Severe Thunderstorm Warning | LWX | 17 min |
| May 31, 1:58 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 7, 2:42 PM EDT | Coastal Flood Advisory | LWX | 39 hr |
| Jun 14, 1:17 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 19, 12:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 19, 12:48 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 19, 2:21 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 6, 6:20 AM EDT | Flash Flood Watch | LWX | 20 hr |
| Jul 6, 7:43 PM EDT | Severe Thunderstorm Warning | LWX | 36 min |
| Jul 12, 3:05 PM EDT | Heat Advisory | LWX | 28 hr |
| Jul 13, 3:03 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jul 14, 1:09 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 1:40 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 14, 4:23 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jul 14, 6:16 PM EDT | Severe Thunderstorm Warning | LWX | 19 min |
| Jul 20, 3:21 AM EDT | Heat Advisory | LWX | 16 hr |
| Jul 20, 8:30 PM EDT | Heat Advisory | LWX | 23 hr |
| Jul 22, 3:09 AM EDT | Heat Advisory | LWX | 16 hr |
| Jul 22, 6:29 PM EDT | Special Weather Statement | AKQ | 46 min |
| Jul 22, 6:39 PM EDT | Severe Thunderstorm Warning | LWX | 51 min |
| Jul 24, 6:09 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 27, 1:47 PM EDT | Flash Flood Watch | LWX | 48 hr |
| Aug 6, 5:29 PM EDT | Flash Flood Watch | LWX | 23 hr |
| Aug 12, 4:11 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 12, 8:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Aug 15, 10:31 PM EDT | Dense Fog Advisory | LWX | 11 hr |
| Aug 18, 3:42 AM EDT | Heat Advisory | LWX | 15 hr |
| Aug 18, 12:35 PM EDT | Flash Flood Watch | LWX | 8 hr |
| Aug 18, 1:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 18, 2:27 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 18, 6:42 PM EDT | Severe Thunderstorm Warning | LWX | 63 min |
| Aug 21, 2:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 21, 8:07 PM EDT | Special Weather Statement | AKQ | 38 min |
| Aug 21, 8:42 PM EDT | Special Weather Statement | AKQ | 48 min |
| Aug 28, 7:05 AM EDT | Coastal Flood Advisory | LWX | 4 days |
| Sep 2, 3:00 AM EDT | Coastal Flood Advisory | LWX | 28 hr |
| Sep 16, 2:22 PM EDT | Coastal Flood Advisory | LWX | 8 days |
| Oct 12, 5:53 AM EDT | Coastal Flood Advisory | LWX | 47 hr |
| Oct 17, 1:39 PM EDT | Frost Advisory | LWX | 19 hr |
| Oct 23, 2:00 PM EDT | Coastal Flood Advisory | LWX | 32 hr |
| Oct 26, 3:53 AM EDT | Frost Advisory | LWX | 29 hr |
| Nov 8, 1:04 PM EST | Coastal Flood Advisory | LWX | 39 hr |
| Nov 9, 2:17 AM EST | Freeze Watch | LWX | 24 hr |
| Nov 10, 2:41 AM EST | Freeze Warning | LWX | 31 hr |
| Dec 8, 5:50 AM EST | Winter Weather Advisory | LWX | 51 hr |
| Dec 8, 2:52 PM EST | Winter Storm Warning | LWX | 25 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 | 15 |
| Severe Thunderstorm Watch | 8 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 4 |
| Flooding | |
| Flash Flood Watch | 4 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
| Coast and beach | |
| Coastal Flood Advisory | 13 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.