Alert archive / Virginia / Northampton County
Weather alerts in Northampton County, Virginia, 2013
90 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Northampton County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 90
- Warnings
- 4
- Watches
- 13
- Advisories
- 24
- Busiest month
- June32 alerts
- Busiest day
- June 10, 20136 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Northampton County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 1 | 1 | 0% | 1 | 100% | 12 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wakefield, VA: tornado warnings | 18 | 2 | 89% | 3 | 100% | 16 min |
| NWS Wakefield, VA: severe thunderstorm warnings | 97 | 78 | 20% | 287 | 84% | 21 min |
| NWS Wakefield, VA: flash flood warnings | 14 | 10 | 29% | 31 | 97% | 59 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 11, 7:00 PM EST | Dense Fog Advisory | AKQ | 16 hr |
| Jan 12, 6:46 PM EST | Dense Fog Advisory | AKQ | 17 hr |
| Jan 13, 6:41 PM EST | Dense Fog Advisory | AKQ | 6 hr |
| Jan 17, 4:15 AM EST | Winter Weather Advisory | AKQ | 23 hr |
| Jan 24, 2:15 AM EST | Winter Weather Advisory | AKQ | 8 hr |
| Jan 24, 3:18 PM EST | Winter Weather Advisory | AKQ | 30 hr |
| Jan 30, 4:18 AM EST | Wind Advisory | AKQ | 26 hr |
| Jan 30, 11:59 PM EST | Tornado Watch | SPC | 5 hr |
| Jan 31, 12:52 AM EST | Mesoscale Discussion | SPC | 83 min |
| Feb 8, 3:21 AM EST | Coastal Flood Advisory | AKQ | 6 hr |
| Feb 16, 3:52 AM EST | Winter Weather Advisory | AKQ | 21 hr |
| Feb 26, 9:31 PM EST | Coastal Flood Advisory | AKQ | 104 min |
| Mar 5, 2:54 PM EST | Coastal Flood Warning | AKQ | 48 hr |
| Mar 6, 4:50 AM EST | Wind Advisory | AKQ | 22 hr |
| Mar 6, 1:46 PM EST | Coastal Flood Advisory | AKQ | 4 hr |
| Mar 7, 9:41 AM EST | Coastal Flood Advisory | AKQ | 47 hr |
| Mar 9, 1:10 PM EST | Coastal Flood Advisory | AKQ | 20 hr |
| Mar 10, 11:02 AM EDT | Coastal Flood Advisory | AKQ | 11 hr |
| Apr 1, 5:37 AM EDT | Dense Fog Advisory | AKQ | 3 hr |
| Apr 12, 2:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Apr 19, 6:27 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 19, 8:50 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Apr 21, 1:51 PM EDT | High Surf Advisory | AKQ | 50 hr |
| Apr 23, 6:22 AM EDT | Coastal Flood Advisory | AKQ | 19 hr |
| May 11, 1:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| May 11, 7:11 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jun 3, 10:41 AM EDT | Special Weather Statement | AKQ | 64 min |
| Jun 3, 11:17 AM EDT | Special Weather Statement | AKQ | 58 min |
| Jun 6, 3:55 PM EDT | Flood Watch | AKQ | 31 hr |
| Jun 6, 6:25 PM EDT | Beach Hazards Statement | AKQ | 26 hr |
| Jun 7, 5:37 AM EDT | Tornado Watch | SPC | 7 hr |
| Jun 7, 8:35 AM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 7, 1:00 PM EDT | Tornado Watch | SPC | 7 hr |
| Jun 7, 3:32 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jun 7, 6:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 7, 8:46 PM EDT | Special Weather Statement | AKQ | 59 min |
| Jun 8, 1:05 PM EDT | Special Weather Statement | AKQ | 55 min |
| Jun 10, 2:57 AM EDT | Flash Flood Watch | AKQ | 21 hr |
| Jun 10, 12:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 10, 2:02 PM EDT | Tornado Watch | SPC | 10 hr |
| Jun 10, 3:00 PM EDT | Special Weather Statement | AKQ | 60 min |
| Jun 10, 4:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 10, 6:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jun 10, 8:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jun 13, 2:40 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 13, 11:38 AM EDT | Mesoscale Discussion | SPC | 67 min |
| Jun 13, 1:53 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 13, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 13, 4:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 13, 5:16 PM EDT | Severe Thunderstorm Warning | AKQ | 44 min |
| Jun 18, 6:09 PM EDT | Special Weather Statement | AKQ | 66 min |
| Jun 25, 11:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jun 26, 2:55 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 27, 8:00 PM EDT | Special Weather Statement | AKQ | 60 min |
| Jun 28, 2:51 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 28, 4:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 28, 6:47 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jun 30, 3:56 PM EDT | Flash Flood Watch | AKQ | 54 hr |
| Jul 2, 3:50 PM EDT | Special Weather Statement | AKQ | 70 min |
| Jul 11, 1:42 PM EDT | Flash Flood Watch | AKQ | 32 hr |
| Jul 13, 9:54 AM EDT | Special Weather Statement | AKQ | 66 min |
| Jul 18, 3:29 AM EDT | Heat Advisory | AKQ | 15 hr |
| Jul 21, 8:15 PM EDT | Special Weather Statement | AKQ | 90 min |
| Jul 25, 1:59 AM EDT | Special Weather Statement | AKQ | 31 min |
| Jul 25, 2:36 AM EDT | Special Weather Statement | AKQ | 24 min |
| Jul 25, 2:59 AM EDT | Special Weather Statement | AKQ | 46 min |
| Jul 25, 3:44 AM EDT | Special Weather Statement | AKQ | 46 min |
| Aug 1, 4:58 PM EDT | Special Weather Statement | AKQ | 77 min |
| Aug 1, 9:28 PM EDT | Special Weather Statement | AKQ | 17 min |
| Aug 3, 12:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 3, 2:37 PM EDT | Special Weather Statement | AKQ | 38 min |
| Aug 10, 11:56 AM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 10, 1:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Aug 10, 1:48 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 10, 4:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Aug 22, 2:26 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 3, 11:12 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 7, 4:22 PM EDT | Special Weather Statement | AKQ | 53 min |
| Oct 8, 9:22 AM EDT | Coastal Flood Advisory | AKQ | 7 days |
| Oct 8, 10:43 PM EDT | High Surf Advisory | AKQ | 43 hr |
| Oct 15, 6:59 AM EDT | Coastal Flood Statement | AKQ | 15 hr |
| Oct 25, 4:53 PM EDT | Frost Advisory | AKQ | 16 hr |
| Nov 12, 1:46 PM EST | Freeze Warning | AKQ | 18 hr |
| Nov 13, 3:31 PM EST | Freeze Warning | AKQ | 16 hr |
| Nov 17, 4:11 AM EST | Dense Fog Advisory | AKQ | 6 hr |
| Nov 26, 3:06 PM EST | Wind Advisory | AKQ | 13 hr |
| Dec 17, 8:58 PM EST | Special Weather Statement | AKQ | 47 min |
| Dec 17, 9:49 PM EST | Special Weather Statement | AKQ | 56 min |
| Dec 23, 6:38 AM EST | Special Weather Statement | AKQ | 52 min |
| Dec 23, 11:12 AM EST | Special Weather Statement | AKQ | 48 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 | 1 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 22 |
| Flooding | |
| Flash Flood Watch | 3 |
| Flood Watch | 1 |
| Winter | |
| Winter Weather Advisory | 4 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
| Coastal Flood Advisory | 8 |
| High Surf Advisory | 2 |
| Beach Hazards Statement | 1 |
| Coastal Flood Statement | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20122014
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.