Alert archive / Virginia / Northampton County
Weather alerts in Northampton County, Virginia, 2015
111 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 111
- Warnings
- 12
- Watches
- 10
- Advisories
- 34
- Busiest month
- June20 alerts
- Busiest day
- June 21, 20154 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, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 7 | 2 | 71% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wakefield, VA: tornado warnings | 21 | 4 | 81% | 9 | 67% | 11 min |
| NWS Wakefield, VA: severe thunderstorm warnings | 113 | 77 | 32% | 208 | 87% | 23 min |
| NWS Wakefield, VA: flash flood warnings | 3 | 3 | 0% | 7 | 100% | 44 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 7, 3:29 AM EST | Wind Chill Advisory | AKQ | 30 hr |
| Jan 13, 3:26 AM EST | Winter Weather Advisory | AKQ | 37 hr |
| Jan 26, 4:26 AM EST | Winter Weather Advisory | AKQ | 30 hr |
| Jan 30, 3:50 AM EST | Wind Advisory | AKQ | 20 hr |
| Feb 2, 3:49 AM EST | Wind Advisory | AKQ | 18 hr |
| Feb 2, 12:52 PM EST | Special Weather Statement | AKQ | 23 min |
| Feb 10, 5:30 AM EST | Coastal Flood Statement | AKQ | 22 hr |
| Feb 14, 3:09 AM EST | Wind Chill Advisory | AKQ | 55 hr |
| Feb 14, 3:38 AM EST | High Wind Warning | AKQ | 33 hr |
| Feb 14, 3:38 AM EST | Wind Advisory | AKQ | 36 hr |
| Feb 14, 8:45 PM EST | Special Weather Statement | AKQ | 60 min |
| Feb 15, 4:40 PM EST | Winter Storm Watch | AKQ | 11 hr |
| Feb 15, 9:52 PM EST | Winter Storm Warning | AKQ | 38 hr |
| Feb 18, 3:44 AM EST | Wind Chill Advisory | AKQ | 59 hr |
| Feb 18, 7:08 PM EST | Special Weather Statement | AKQ | 82 min |
| Feb 18, 8:35 PM EST | Special Weather Statement | AKQ | 85 min |
| Feb 18, 9:54 PM EST | Special Weather Statement | AKQ | 66 min |
| Feb 22, 8:17 AM EST | Dense Fog Advisory | AKQ | 103 min |
| Feb 24, 4:00 AM EST | Winter Weather Advisory | AKQ | 18 hr |
| Feb 24, 4:23 PM EST | Winter Storm Watch | AKQ | 22 hr |
| Feb 25, 4:30 AM EST | Winter Storm Warning | AKQ | 34 hr |
| Feb 26, 12:56 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 28, 3:17 PM EST | Winter Weather Advisory | AKQ | 31 hr |
| Mar 2, 3:13 AM EST | Dense Fog Advisory | AKQ | 6 hr |
| Mar 4, 2:33 PM EST | Winter Weather Advisory | AKQ | 34 hr |
| Mar 14, 2:40 PM EDT | Special Weather Statement | AKQ | 50 min |
| Mar 14, 3:36 PM EDT | Special Weather Statement | AKQ | 54 min |
| Apr 10, 2:36 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Apr 10, 6:12 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 10, 7:12 PM EDT | Severe Thunderstorm Warning | AKQ | 41 min |
| Apr 10, 8:16 PM EDT | Special Weather Statement | AKQ | 44 min |
| Apr 10, 8:37 PM EDT | Severe Thunderstorm Warning | AKQ | 38 min |
| May 1, 10:55 AM EDT | Special Weather Statement | AKQ | 50 min |
| May 1, 12:00 PM EDT | Special Weather Statement | AKQ | 60 min |
| May 7, 11:56 PM EDT | Dense Fog Advisory | AKQ | 10 hr |
| May 9, 2:40 AM EDT | Dense Fog Advisory | AKQ | 5 hr |
| May 11, 6:55 AM EDT | Special Weather Statement | AKQ | 50 min |
| May 12, 1:52 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 1, 10:51 PM EDT | Special Weather Statement | AKQ | 54 min |
| Jun 6, 4:36 PM EDT | Special Weather Statement | AKQ | 54 min |
| Jun 18, 8:23 PM EDT | Severe Thunderstorm Warning | AKQ | 22 min |
| Jun 18, 9:07 PM EDT | Special Weather Statement | AKQ | 38 min |
| Jun 18, 9:19 PM EDT | Severe Thunderstorm Warning | AKQ | 41 min |
| Jun 20, 8:56 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 20, 10:14 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jun 20, 11:48 PM EDT | Severe Thunderstorm Warning | AKQ | 42 min |
| Jun 21, 12:37 AM EDT | Special Weather Statement | AKQ | 23 min |
| Jun 23, 4:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 23, 5:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 23, 7:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 24, 1:01 AM EDT | Special Weather Statement | AKQ | 59 min |
| Jun 25, 4:50 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 25, 7:53 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 25, 11:56 PM EDT | Areal Flood Advisory | AKQ | 2 hr |
| Jun 27, 12:56 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 27, 1:54 PM EDT | Tornado Watch | SPC | 6 hr |
| Jun 27, 4:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 30, 6:08 PM EDT | Special Weather Statement | AKQ | 52 min |
| Jul 4, 9:49 PM EDT | Special Weather Statement | AKQ | 26 min |
| Jul 5, 10:54 PM EDT | Special Weather Statement | AKQ | 51 min |
| Jul 6, 3:32 PM EDT | Special Weather Statement | AKQ | 43 min |
| Jul 11, 6:58 AM EDT | Special Weather Statement | AKQ | 32 min |
| Jul 18, 6:20 PM EDT | Special Weather Statement | AKQ | 25 min |
| Jul 18, 6:44 PM EDT | Special Weather Statement | AKQ | 46 min |
| Jul 18, 7:16 PM EDT | Special Weather Statement | AKQ | 14 min |
| Jul 18, 7:31 PM EDT | Special Weather Statement | AKQ | 59 min |
| Jul 19, 7:54 PM EDT | Heat Advisory | AKQ | 24 hr |
| Jul 21, 3:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jul 21, 5:04 PM EDT | Special Weather Statement | AKQ | 26 min |
| Aug 6, 4:45 AM EDT | Special Weather Statement | AKQ | 45 min |
| Aug 7, 4:37 PM EDT | Beach Hazards Statement | AKQ | 26 hr |
| Aug 8, 3:17 AM EDT | Rip Current Statement | AKQ | 16 hr |
| Aug 8, 4:56 PM EDT | Beach Hazards Statement | AKQ | 27 hr |
| Aug 9, 2:24 AM EDT | Rip Current Statement | AKQ | 18 hr |
| Aug 11, 7:32 AM EDT | Special Weather Statement | AKQ | 43 min |
| Aug 11, 7:08 PM EDT | Severe Thunderstorm Warning | AKQ | 22 min |
| Aug 11, 7:13 PM EDT | Severe Thunderstorm Warning | AKQ | 32 min |
| Sep 5, 1:14 PM EDT | Coastal Flood Advisory | AKQ | 13 hr |
| Sep 8, 4:38 AM EDT | Dense Fog Advisory | AKQ | 4 hr |
| Sep 10, 7:17 PM EDT | Special Weather Statement | AKQ | 28 min |
| Sep 12, 10:02 AM EDT | Mesoscale Discussion | SPC | 118 min |
| Sep 12, 2:28 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 12, 5:26 PM EDT | Special Weather Statement | AKQ | 64 min |
| Sep 21, 5:26 AM EDT | Beach Hazards Statement | AKQ | 10 days |
| Sep 22, 4:32 AM EDT | High Surf Advisory | AKQ | 6 days |
| Sep 25, 5:53 PM EDT | Coastal Flood Watch | AKQ | 12 hr |
| Sep 25, 5:53 PM EDT | Coastal Flood Advisory | AKQ | 22 hr |
| Sep 26, 5:34 AM EDT | Coastal Flood Warning | AKQ | 33 hr |
| Sep 26, 6:56 PM EDT | Coastal Flood Advisory | AKQ | 60 hr |
| Sep 28, 1:29 PM EDT | Coastal Flood Statement | AKQ | 17 hr |
| Sep 30, 7:07 PM EDT | Coastal Flood Watch | AKQ | 22 hr |
| Sep 30, 11:59 PM EDT | Flood Watch | AKQ | 51 hr |
| Oct 1, 4:14 AM EDT | Coastal Flood Advisory | AKQ | 13 hr |
| Oct 1, 1:35 PM EDT | High Surf Advisory | AKQ | 5 days |
| Oct 1, 4:52 PM EDT | Coastal Flood Warning | AKQ | 5 days |
| Oct 2, 3:16 AM EDT | Wind Advisory | AKQ | 24 hr |
| Oct 3, 2:08 PM EDT | Special Weather Statement | AKQ | 37 min |
| Oct 3, 9:20 PM EDT | Wind Advisory | AKQ | 8 hr |
| Oct 4, 8:44 AM EDT | Wind Advisory | AKQ | 19 hr |
| Oct 4, 5:59 PM EDT | Coastal Flood Advisory | AKQ | 56 hr |
| Oct 9, 7:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Oct 27, 4:59 AM EDT | Coastal Flood Statement | AKQ | 11 hr |
| Oct 27, 5:32 PM EDT | Coastal Flood Statement | AKQ | 20 hr |
| Oct 28, 9:30 AM EDT | Coastal Flood Advisory | AKQ | 5 hr |
| Oct 29, 11:54 AM EDT | Coastal Flood Advisory | AKQ | 4 hr |
| Dec 22, 10:22 AM EST | Special Weather Statement | AKQ | 53 min |
| Dec 27, 12:43 AM EST | Dense Fog Advisory | AKQ | 8 hr |
| Dec 29, 10:24 AM EST | Coastal Flood Statement | AKQ | 11 hr |
| Dec 30, 2:26 PM EST | Areal Flood Advisory | AKQ | 3 hr |
| Dec 30, 5:38 PM EST | Areal Flood Advisory | AKQ | 112 min |
| Dec 30, 6:37 PM EST | Areal Flood Advisory | AKQ | 113 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 | 7 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 13 |
| Special Weather Statement | 32 |
| Flooding | |
| Flood Watch | 1 |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 5 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Coast and beach | |
| Coastal Flood Warning | 2 |
| Coastal Flood Watch | 2 |
| Coastal Flood Advisory | 7 |
| High Surf Advisory | 2 |
| Beach Hazards Statement | 3 |
| Coastal Flood Statement | 5 |
| Rip Current Statement | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20142016
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.