Alert archive / Virginia / Northampton County
Weather alerts in Northampton County, Virginia, 2020
142 weather alerts in 2020, 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 2020. Tap one for its archive.
- Alerts
- 142
- Warnings
- 19
- Watches
- 14
- Advisories
- 43
- Busiest month
- August24 alerts
- Busiest day
- April 30, 20204 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, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 8 | 6 | 25% | 1 | 100% | 57 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wakefield, VA: tornado warnings | 60 | 19 | 68% | 39 | 72% | 17 min |
| NWS Wakefield, VA: severe thunderstorm warnings | 170 | 120 | 29% | 237 | 91% | 19 min |
| NWS Wakefield, VA: flash flood warnings | 87 | 57 | 34% | 118 | 92% | 79 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 4, 7:25 PM EST | Special Weather Statement | AKQ | 35 min |
| Feb 5, 3:45 PM EST | Flood Watch | AKQ | 37 hr |
| Feb 6, 2:42 PM EST | Wind Advisory | AKQ | 27 hr |
| Feb 6, 4:02 PM EST | Special Weather Statement | AKQ | 43 min |
| Feb 7, 1:40 AM EST | Coastal Flood Advisory | AKQ | 14 hr |
| Feb 7, 9:27 AM EST | Severe Thunderstorm Warning | AKQ | 48 min |
| Feb 7, 9:50 AM EST | Mesoscale Discussion | SPC | 85 min |
| Feb 11, 12:31 PM EST | Special Weather Statement | AKQ | 29 min |
| Feb 19, 2:42 PM EST | Winter Storm Watch | AKQ | 13 hr |
| Feb 19, 8:25 PM EST | Winter Weather Advisory | AKQ | 35 hr |
| Feb 26, 11:47 PM EST | Special Weather Statement | AKQ | 58 min |
| Feb 27, 12:06 AM EST | Special Weather Statement | AKQ | 24 min |
| Mar 22, 3:06 AM EDT | High Surf Advisory | AKQ | 41 hr |
| Mar 25, 3:30 PM EDT | Coastal Flood Advisory | AKQ | 10 hr |
| Mar 31, 3:11 AM EDT | High Surf Advisory | AKQ | 52 hr |
| Mar 31, 5:05 AM EDT | Coastal Flood Advisory | AKQ | 53 hr |
| Apr 3, 2:37 PM EDT | Coastal Flood Advisory | AKQ | 33 hr |
| Apr 5, 3:30 AM EDT | Coastal Flood Advisory | AKQ | 11 hr |
| Apr 7, 2:57 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 7, 5:35 PM EDT | Severe Thunderstorm Warning | AKQ | 55 min |
| Apr 8, 4:30 PM EDT | Coastal Flood Advisory | AKQ | 11 hr |
| Apr 9, 3:45 PM EDT | Wind Advisory | AKQ | 27 hr |
| Apr 9, 3:52 PM EDT | Coastal Flood Statement | AKQ | 14 hr |
| Apr 11, 3:04 PM EDT | High Wind Watch | AKQ | 21 hr |
| Apr 12, 12:29 PM EDT | High Wind Warning | AKQ | 28 hr |
| Apr 12, 2:48 PM EDT | High Surf Advisory | AKQ | 29 hr |
| Apr 13, 6:46 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Apr 15, 12:48 AM EDT | Special Weather Statement | AKQ | 27 min |
| Apr 16, 3:12 PM EDT | Frost Advisory | AKQ | 18 hr |
| Apr 29, 3:23 AM EDT | Flood Watch | AKQ | 39 hr |
| Apr 30, 3:24 AM EDT | Wind Advisory | AKQ | 15 hr |
| Apr 30, 3:27 AM EDT | High Surf Advisory | AKQ | 28 hr |
| Apr 30, 3:16 PM EDT | Special Weather Statement | AKQ | 59 min |
| Apr 30, 4:08 PM EDT | Special Weather Statement | AKQ | 67 min |
| May 6, 3:59 PM EDT | Coastal Flood Statement | AKQ | 9 hr |
| May 17, 3:43 PM EDT | Beach Hazards Statement | AKQ | 5 days |
| May 17, 3:43 PM EDT | Rip Current Statement | AKQ | 52 hr |
| May 18, 6:27 AM EDT | Coastal Flood Watch | AKQ | 29 hr |
| May 18, 7:10 PM EDT | High Surf Advisory | AKQ | 72 hr |
| May 19, 6:00 AM EDT | Coastal Flood Warning | AKQ | 46 hr |
| May 19, 9:40 PM EDT | Rip Current Statement | AKQ | 70 hr |
| May 20, 3:57 PM EDT | Coastal Flood Advisory | AKQ | 12 hr |
| Jun 6, 10:00 PM EDT | Severe Thunderstorm Warning | AKQ | 45 min |
| Jun 6, 10:22 PM EDT | Special Weather Statement | AKQ | 53 min |
| Jun 6, 10:46 PM EDT | Special Weather Statement | AKQ | 29 min |
| Jun 6, 11:10 PM EDT | Special Weather Statement | AKQ | 35 min |
| Jun 14, 8:36 PM EDT | Beach Hazards Statement | AKQ | 47 hr |
| Jun 16, 8:33 PM EDT | Beach Hazards Statement | AKQ | 41 hr |
| Jun 25, 6:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 1, 1:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jul 1, 2:57 PM EDT | Severe Thunderstorm Warning | AKQ | 63 min |
| Jul 1, 4:03 PM EDT | Special Weather Statement | AKQ | 42 min |
| Jul 5, 3:57 PM EDT | Coastal Flood Statement | AKQ | 12 hr |
| Jul 7, 3:25 AM EDT | Special Weather Statement | AKQ | 50 min |
| Jul 7, 4:13 AM EDT | Special Weather Statement | AKQ | 47 min |
| Jul 9, 4:03 PM EDT | Coastal Flood Statement | AKQ | 13 hr |
| Jul 9, 4:45 PM EDT | Beach Hazards Statement | AKQ | 27 hr |
| Jul 13, 9:12 AM EDT | Special Weather Statement | AKQ | 63 min |
| Jul 18, 3:09 PM EDT | Heat Advisory | AKQ | 30 hr |
| Jul 19, 2:40 PM EDT | Excessive Heat Warning | AKQ | 30 hr |
| Jul 19, 2:40 PM EDT | Heat Advisory | AKQ | 30 hr |
| Jul 20, 8:46 PM EDT | Heat Advisory | AKQ | 70 hr |
| Jul 22, 10:48 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 23, 3:54 PM EDT | Special Weather Statement | AKQ | 51 min |
| Jul 26, 3:32 PM EDT | Heat Advisory | AKQ | 52 hr |
| Jul 31, 1:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 1, 12:33 AM EDT | Severe Thunderstorm Warning | AKQ | 42 min |
| Aug 2, 5:44 PM EDT | Tropical Storm Watch | AKQ | 5 hr |
| Aug 2, 10:51 PM EDT | Tropical Storm Warning | AKQ | 43 hr |
| Aug 3, 5:18 PM EDT | Coastal Flood Warning | AKQ | 24 hr |
| Aug 3, 7:34 PM EDT | Beach Hazards Statement | AKQ | 24 hr |
| Aug 4, 12:02 AM EDT | Mesoscale Discussion | SPC | 118 min |
| Aug 4, 1:41 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 4, 2:26 AM EDT | Tornado Watch | SPC | 9 hr |
| Aug 4, 5:15 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 6, 5:22 PM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Aug 7, 2:43 AM EDT | Flash Flood Watch | AKQ | 19 hr |
| Aug 8, 3:31 AM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Aug 13, 2:25 AM EDT | Flash Flood Watch | AKQ | 17 hr |
| Aug 15, 3:21 AM EDT | Flash Flood Watch | AKQ | 33 hr |
| Aug 15, 4:02 PM EDT | Beach Hazards Statement | AKQ | 28 hr |
| Aug 16, 2:58 PM EDT | Coastal Flood Statement | AKQ | 14 hr |
| Aug 17, 4:04 AM EDT | Beach Hazards Statement | AKQ | 16 hr |
| Aug 17, 10:46 PM EDT | Special Weather Statement | AKQ | 44 min |
| Aug 17, 11:26 PM EDT | Special Weather Statement | AKQ | 49 min |
| Aug 25, 7:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 27, 9:50 PM EDT | Severe Thunderstorm Warning | AKQ | 40 min |
| Aug 28, 7:50 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 29, 12:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 29, 1:06 PM EDT | Special Weather Statement | AKQ | 39 min |
| Sep 3, 3:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Sep 8, 9:41 PM EDT | Beach Hazards Statement | AKQ | 46 hr |
| Sep 9, 2:26 PM EDT | Flash Flood Watch | AKQ | 31 hr |
| Sep 10, 7:40 AM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Sep 12, 6:51 PM EDT | Beach Hazards Statement | AKQ | 4 days |
| Sep 16, 3:51 AM EDT | Flash Flood Watch | AKQ | 50 hr |
| Sep 17, 3:52 PM EDT | Beach Hazards Statement | AKQ | 52 hr |
| Sep 17, 3:52 PM EDT | Coastal Flood Watch | AKQ | 62 hr |
| Sep 17, 3:52 PM EDT | Coastal Flood Advisory | AKQ | 5 days |
| Sep 17, 3:52 PM EDT | High Surf Advisory | AKQ | 6 days |
| Sep 18, 3:43 PM EDT | Coastal Flood Warning | AKQ | 69 hr |
| Sep 19, 9:07 PM EDT | Beach Hazards Statement | AKQ | 4 days |
| Sep 20, 5:32 AM EDT | Coastal Flood Warning | AKQ | 37 hr |
| Sep 20, 5:32 AM EDT | Coastal Flood Advisory | AKQ | 35 hr |
| Sep 22, 5:17 AM EDT | Coastal Flood Advisory | AKQ | 18 hr |
| Sep 23, 5:12 AM EDT | Coastal Flood Statement | AKQ | 13 hr |
| Sep 29, 9:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 29, 11:25 PM EDT | Special Weather Statement | AKQ | 95 min |
| Oct 13, 6:11 AM EDT | Coastal Flood Statement | AKQ | 13 hr |
| Oct 13, 7:54 PM EDT | Coastal Flood Advisory | AKQ | 5 hr |
| Oct 17, 3:41 AM EDT | Coastal Flood Advisory | AKQ | 9 hr |
| Oct 18, 3:04 AM EDT | Coastal Flood Advisory | AKQ | 9 hr |
| Oct 19, 3:20 AM EDT | Coastal Flood Statement | AKQ | 17 hr |
| Oct 21, 12:37 AM EDT | Dense Fog Advisory | AKQ | 9 hr |
| Oct 28, 3:27 PM EDT | Wind Advisory | AKQ | 28 hr |
| Oct 29, 7:55 PM EDT | Coastal Flood Statement | AKQ | 17 hr |
| Oct 30, 2:35 PM EDT | Coastal Flood Statement | AKQ | 10 hr |
| Oct 31, 6:31 AM EDT | Coastal Flood Advisory | AKQ | 8 hr |
| Nov 1, 11:36 AM EST | Mesoscale Discussion | SPC | 114 min |
| Nov 1, 12:57 PM EST | Special Weather Statement | AKQ | 63 min |
| Nov 6, 1:29 AM EST | Dense Fog Advisory | AKQ | 9 hr |
| Nov 6, 11:37 PM EST | Dense Fog Advisory | AKQ | 10 hr |
| Nov 11, 10:30 AM EST | Flash Flood Watch | AKQ | 31 hr |
| Nov 12, 8:53 AM EST | Areal Flood Advisory | AKQ | 3 hr |
| Nov 12, 9:52 AM EST | Flash Flood Warning | AKQ | 3 hr |
| Nov 12, 12:56 PM EST | Areal Flood Warning | AKQ | 28 hr |
| Nov 14, 8:39 AM EST | Coastal Flood Statement | AKQ | 4 hr |
| Nov 15, 3:53 AM EST | Coastal Flood Statement | AKQ | 11 hr |
| Nov 15, 11:10 PM EST | Special Weather Statement | AKQ | 50 min |
| Nov 18, 6:40 AM EST | Freeze Warning | AKQ | 25 hr |
| Nov 29, 3:21 PM EST | Wind Advisory | AKQ | 27 hr |
| Nov 30, 5:10 AM EST | Coastal Flood Statement | AKQ | 8 hr |
| Nov 30, 12:26 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Dec 4, 11:39 AM EST | Wind Advisory | AKQ | 27 hr |
| Dec 14, 1:59 PM EST | Special Weather Statement | AKQ | 61 min |
| Dec 15, 4:27 PM EST | Coastal Flood Advisory | AKQ | 19 hr |
| Dec 16, 3:50 AM EST | High Surf Advisory | AKQ | 25 hr |
| Dec 23, 2:48 PM EST | Wind Advisory | AKQ | 35 hr |
| Dec 23, 10:49 PM EST | High Surf Advisory | AKQ | 37 hr |
| Dec 24, 7:44 PM EST | High Wind Warning | AKQ | 6 hr |
| Dec 25, 12:25 AM EST | Severe Thunderstorm Warning | AKQ | 35 min |
| Dec 25, 12:45 AM EST | Severe Thunderstorm Warning | AKQ | 10 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.