Alert archive / Virginia / Northumberland County
Weather alerts in Northumberland County, Virginia, 2022
102 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Northumberland County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 102
- Warnings
- 13
- Watches
- 17
- Advisories
- 35
- Busiest month
- July21 alerts
- Busiest day
- July 29, 20225 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Northumberland County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 5 | 0% | 2 | 100% | 25 min |
| Flash flood warnings | 2 | 2 | 0% | 1 | 100% | 8 min |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wakefield, VA: tornado warnings | 52 | 6 | 88% | 12 | 75% | 15 min |
| NWS Wakefield, VA: severe thunderstorm warnings | 267 | 196 | 27% | 417 | 92% | 21 min |
| NWS Wakefield, VA: flash flood warnings | 33 | 21 | 36% | 41 | 100% | 37 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 2, 2:50 PM EST | Winter Storm Warning | AKQ | 28 hr |
| Jan 3, 11:06 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 4, 3:32 PM EST | Winter Weather Advisory | AKQ | 17 hr |
| Jan 15, 3:37 PM EST | Wind Advisory | AKQ | 51 hr |
| Jan 15, 3:52 PM EST | Coastal Flood Watch | AKQ | 12 hr |
| Jan 16, 4:18 AM EST | Coastal Flood Warning | AKQ | 35 hr |
| Jan 20, 3:21 AM EST | Winter Weather Advisory | AKQ | 28 hr |
| Jan 21, 11:29 AM EST | Winter Weather Advisory | AKQ | 20 hr |
| Jan 27, 3:30 AM EST | Winter Storm Watch | AKQ | 25 hr |
| Jan 27, 3:41 PM EST | Winter Storm Warning | AKQ | 44 hr |
| Feb 2, 6:15 PM EST | Dense Fog Advisory | AKQ | 12 hr |
| Feb 14, 5:22 AM EST | Special Weather Statement | AKQ | 23 min |
| Feb 14, 7:29 AM EST | Special Weather Statement | AKQ | 61 min |
| Feb 17, 2:45 PM EST | Wind Advisory | AKQ | 21 hr |
| Mar 7, 3:41 AM EST | Wind Advisory | AKQ | 15 hr |
| Mar 7, 8:07 PM EST | Special Weather Statement | AKQ | 38 min |
| Mar 11, 3:06 PM EST | Wind Advisory | AKQ | 34 hr |
| Mar 12, 3:27 PM EST | Special Weather Statement | AKQ | 48 min |
| Mar 18, 3:23 AM EDT | Dense Fog Advisory | AKQ | 7 hr |
| Mar 31, 2:25 PM EDT | Tornado Watch | SPC | 8 hr |
| Mar 31, 3:54 PM EDT | Special Weather Statement | AKQ | 51 min |
| Apr 7, 3:09 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 14, 5:40 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 16, 6:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Apr 26, 1:16 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 26, 2:25 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 4, 1:56 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 6, 4:10 PM EDT | Coastal Flood Watch | AKQ | 37 hr |
| May 7, 4:57 AM EDT | Coastal Flood Advisory | AKQ | 5 days |
| May 7, 5:35 PM EDT | Coastal Flood Warning | AKQ | 4 days |
| May 10, 7:56 PM EDT | Coastal Flood Advisory | AKQ | 42 hr |
| May 14, 9:35 PM EDT | Dense Fog Advisory | AKQ | 11 hr |
| May 16, 1:16 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| May 27, 11:50 AM EDT | Tornado Watch | SPC | 4 hr |
| May 27, 5:45 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 2, 1:53 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 2, 4:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 2, 6:04 PM EDT | Severe Thunderstorm Warning | AKQ | 41 min |
| Jun 2, 6:41 PM EDT | Severe Thunderstorm Warning | AKQ | 35 min |
| Jun 8, 2:58 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 12, 9:19 AM EDT | Areal Flood Advisory | AKQ | 116 min |
| Jun 12, 11:42 AM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Jun 16, 7:21 AM EDT | Special Weather Statement | AKQ | 39 min |
| Jun 16, 8:06 AM EDT | Special Weather Statement | AKQ | 39 min |
| Jun 17, 3:37 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 27, 4:05 PM EDT | Special Weather Statement | AKQ | 55 min |
| Jul 5, 3:23 PM EDT | Special Weather Statement | AKQ | 52 min |
| Jul 9, 8:44 AM EDT | Special Weather Statement | AKQ | 46 min |
| Jul 9, 10:15 AM EDT | Flash Flood Warning | AKQ | 3 hr |
| Jul 9, 10:44 AM EDT | Flash Flood Warning | AKQ | 3 hr |
| Jul 12, 8:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 16, 1:36 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 20, 2:22 PM EDT | Excessive Heat Warning | AKQ | 28 hr |
| Jul 21, 12:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 1:06 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 21, 3:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 4:06 PM EDT | Severe Thunderstorm Warning | AKQ | 39 min |
| Jul 24, 3:21 AM EDT | Heat Advisory | AKQ | 17 hr |
| Jul 25, 1:46 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 25, 4:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jul 25, 6:15 PM EDT | Severe Thunderstorm Warning | AKQ | 45 min |
| Jul 27, 3:10 PM EDT | Heat Advisory | AKQ | 29 hr |
| Jul 29, 12:24 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 29, 1:31 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 29, 3:07 PM EDT | Severe Thunderstorm Warning | AKQ | 53 min |
| Jul 29, 4:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 29, 4:57 PM EDT | Areal Flood Advisory | AKQ | 2 hr |
| Aug 3, 2:19 PM EDT | Heat Advisory | AKQ | 30 hr |
| Aug 5, 2:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 5, 3:48 PM EDT | Flash Flood Watch | AKQ | 7 hr |
| Aug 5, 6:22 PM EDT | Special Weather Statement | AKQ | 53 min |
| Aug 9, 2:30 PM EDT | Heat Advisory | AKQ | 7 hr |
| Aug 10, 10:15 AM EDT | Flood Watch | AKQ | 11 hr |
| Aug 10, 11:53 AM EDT | Heat Advisory | AKQ | 7 hr |
| Aug 10, 1:01 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 7, 2:33 PM EDT | Coastal Flood Statement | AKQ | 11 hr |
| Sep 8, 5:47 AM EDT | Coastal Flood Advisory | AKQ | 49 hr |
| Sep 10, 6:42 AM EDT | Coastal Flood Advisory | AKQ | 24 hr |
| Sep 11, 6:33 AM EDT | Coastal Flood Statement | AKQ | 60 hr |
| Sep 12, 2:22 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 12, 5:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 25, 2:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Sep 29, 3:41 PM EDT | Coastal Flood Warning | AKQ | 55 hr |
| Sep 29, 3:41 PM EDT | Coastal Flood Advisory | AKQ | 52 hr |
| Sep 29, 3:41 PM EDT | Wind Advisory | AKQ | 36 hr |
| Oct 1, 3:47 PM EDT | Wind Advisory | AKQ | 52 hr |
| Oct 1, 10:44 PM EDT | Coastal Flood Advisory | AKQ | 32 hr |
| Oct 17, 4:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Oct 19, 2:25 PM EDT | Frost Advisory | AKQ | 19 hr |
| Oct 20, 2:22 PM EDT | Frost Advisory | AKQ | 19 hr |
| Oct 26, 2:56 AM EDT | Dense Fog Advisory | AKQ | 7 hr |
| Nov 4, 6:19 AM EDT | Dense Fog Advisory | AKQ | 4 hr |
| Nov 11, 6:15 AM EST | Tornado Watch | SPC | 12 hr |
| Nov 11, 2:30 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 11, 5:49 AM EST | Coastal Flood Statement | AKQ | 13 hr |
| Dec 15, 3:36 AM EST | Coastal Flood Advisory | AKQ | 18 hr |
| Dec 16, 3:07 AM EST | Coastal Flood Advisory | AKQ | 8 hr |
| Dec 16, 10:11 AM EST | Coastal Flood Statement | AKQ | 12 hr |
| Dec 22, 3:25 AM EST | Wind Chill Advisory | AKQ | 56 hr |
| Dec 22, 11:26 AM EST | Wind Advisory | AKQ | 35 hr |
| Dec 22, 3:35 PM EST | Coastal Flood Statement | AKQ | 12 hr |
| Dec 31, 3:24 AM EST | Dense Fog Advisory | AKQ | 7 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 | 5 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 11 |
| Flooding | |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 1 |
| Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 3 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 5 |
| Cold | |
| Frost Advisory | 2 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 7 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Coast and beach | |
| Coastal Flood Warning | 3 |
| Coastal Flood Watch | 2 |
| Coastal Flood Advisory | 8 |
| Coastal Flood Statement | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20212023
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.