Alert archive / Virginia / Henrico County
Weather alerts in Henrico County, Virginia, 2023
124 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Henrico County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 124
- Warnings
- 39
- Watches
- 20
- Advisories
- 27
- Busiest month
- July31 alerts
- Busiest day
- June 27, 20238 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Henrico County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 22 | 21 | 5% | 11 | 91% | 17 min |
| Flash flood warnings | 11 | 10 | 9% | 4 | 100% | 35 min |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wakefield, VA: tornado warnings | 15 | 4 | 73% | 6 | 83% | 10 min |
| NWS Wakefield, VA: severe thunderstorm warnings | 244 | 165 | 32% | 383 | 89% | 21 min |
| NWS Wakefield, VA: flash flood warnings | 83 | 58 | 30% | 106 | 95% | 58 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 12, 8:25 PM EST | Special Weather Statement | AKQ | 65 min |
| Mar 31, 11:49 AM EDT | Wind Advisory | AKQ | 36 hr |
| Apr 1, 8:04 PM EDT | Severe Thunderstorm Warning | AKQ | 26 min |
| Apr 1, 9:11 PM EDT | Severe Thunderstorm Warning | AKQ | 49 min |
| Apr 6, 2:00 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Apr 6, 2:58 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 6, 4:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Apr 6, 6:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 6, 7:00 PM EDT | Severe Thunderstorm Warning | AKQ | 45 min |
| Apr 6, 8:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 9, 2:53 PM EDT | Frost Advisory | AKQ | 18 hr |
| Apr 17, 3:29 PM EDT | Fire Weather Watch | AKQ | 12 hr |
| Apr 18, 3:20 AM EDT | Red Flag Warning | AKQ | 17 hr |
| Apr 22, 9:34 AM EDT | Mesoscale Discussion | SPC | 116 min |
| Apr 22, 10:07 AM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Apr 22, 1:34 PM EDT | Special Weather Statement | AKQ | 41 min |
| Apr 22, 2:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 28, 8:55 AM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Apr 29, 9:43 AM EDT | River Flood Warning | AKQ | 15 hr |
| May 13, 2:13 PM EDT | Mesoscale Discussion | SPC | 4 hr |
| May 16, 8:31 PM EDT | Flash Flood Warning | AKQ | 5 hr |
| May 16, 9:00 PM EDT | Special Weather Statement | AKQ | 45 min |
| May 16, 9:32 PM EDT | Severe Thunderstorm Warning | AKQ | 43 min |
| May 16, 9:46 PM EDT | Flash Flood Warning | AKQ | 3 hr |
| May 16, 9:55 PM EDT | Flash Flood Warning | AKQ | 3 hr |
| May 29, 9:04 PM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Jun 7, 5:53 PM EDT | Areal Flood Advisory | AKQ | 93 min |
| Jun 8, 6:37 AM EDT | Dense Fog Advisory | AKQ | 2 hr |
| Jun 8, 11:40 AM EDT | Severe Thunderstorm Warning | AKQ | 35 min |
| Jun 8, 12:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 8, 12:36 PM EDT | Special Weather Statement | AKQ | 39 min |
| Jun 16, 10:50 AM EDT | Mesoscale Discussion | SPC | 55 min |
| Jun 16, 1:22 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 16, 2:31 PM EDT | Severe Thunderstorm Warning | AKQ | 44 min |
| Jun 16, 2:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 16, 3:03 PM EDT | Severe Thunderstorm Warning | AKQ | 42 min |
| Jun 16, 4:49 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jun 23, 1:25 PM EDT | Special Weather Statement | AKQ | 50 min |
| Jun 23, 1:49 PM EDT | Areal Flood Advisory | AKQ | 116 min |
| Jun 23, 2:36 PM EDT | Flash Flood Warning | AKQ | 114 min |
| Jun 24, 4:58 PM EDT | Areal Flood Advisory | AKQ | 2 hr |
| Jun 26, 10:13 AM EDT | Flood Watch | AKQ | 17 hr |
| Jun 26, 12:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 3:05 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 26, 6:29 PM EDT | Severe Thunderstorm Warning | AKQ | 61 min |
| Jun 26, 7:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 7:18 PM EDT | Severe Thunderstorm Warning | AKQ | 42 min |
| Jun 26, 7:24 PM EDT | Severe Thunderstorm Warning | AKQ | 66 min |
| Jun 26, 8:19 PM EDT | Severe Thunderstorm Warning | AKQ | 27 min |
| Jun 26, 9:04 PM EDT | Severe Thunderstorm Warning | AKQ | 41 min |
| Jun 26, 9:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 26, 9:21 PM EDT | Severe Thunderstorm Warning | AKQ | 39 min |
| Jun 26, 9:40 PM EDT | Severe Thunderstorm Warning | AKQ | 35 min |
| Jun 26, 9:41 PM EDT | Areal Flood Advisory | AKQ | 2 hr |
| Jun 26, 9:54 PM EDT | Flash Flood Warning | AKQ | 2 hr |
| Jun 27, 12:07 AM EDT | Severe Thunderstorm Warning | AKQ | 38 min |
| Jul 1, 1:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 2, 2:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 3, 1:42 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 2:42 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 3, 4:09 PM EDT | Severe Thunderstorm Warning | AKQ | 51 min |
| Jul 3, 4:49 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 3, 8:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 6, 2:18 PM EDT | Areal Flood Advisory | AKQ | 100 min |
| Jul 7, 1:31 PM EDT | Special Weather Statement | AKQ | 29 min |
| Jul 7, 1:44 PM EDT | Areal Flood Advisory | AKQ | 76 min |
| Jul 8, 1:43 PM EDT | Flash Flood Warning | AKQ | 92 min |
| Jul 9, 3:29 AM EDT | Flood Watch | AKQ | 18 hr |
| Jul 9, 12:03 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 9, 3:29 PM EDT | Areal Flood Advisory | AKQ | 80 min |
| Jul 14, 3:26 AM EDT | Flood Watch | AKQ | 15 hr |
| Jul 14, 2:02 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 6:26 AM EDT | Flood Watch | AKQ | 11 hr |
| Jul 16, 11:29 AM EDT | Special Weather Statement | AKQ | 31 min |
| Jul 16, 11:41 AM EDT | Flash Flood Warning | AKQ | 3 hr |
| Jul 16, 12:25 PM EDT | River Flood Warning | AKQ | 28 hr |
| Jul 16, 12:25 PM EDT | River Flood Warning | AKQ | 39 hr |
| Jul 16, 12:47 PM EDT | Areal Flood Advisory | AKQ | 118 min |
| Jul 24, 2:00 AM EDT | Special Weather Statement | AKQ | 60 min |
| Jul 24, 2:32 AM EDT | Areal Flood Advisory | AKQ | 118 min |
| Jul 26, 2:49 PM EDT | Excessive Heat Watch | AKQ | 23 hr |
| Jul 26, 2:49 PM EDT | Heat Advisory | AKQ | 3 days |
| Jul 27, 2:03 PM EDT | Excessive Heat Warning | AKQ | 54 hr |
| Jul 29, 2:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 29, 4:24 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 29, 6:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jul 29, 7:28 PM EDT | Severe Thunderstorm Warning | AKQ | 47 min |
| Aug 6, 6:37 PM EDT | Severe Thunderstorm Warning | AKQ | 38 min |
| Aug 6, 7:15 PM EDT | Severe Thunderstorm Warning | AKQ | 18 min |
| Aug 6, 7:57 PM EDT | Areal Flood Advisory | AKQ | 2 hr |
| Aug 7, 1:20 PM EDT | Tornado Watch | SPC | 11 hr |
| Aug 14, 1:55 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 15, 1:28 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 15, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 27, 2:18 PM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Sep 7, 6:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Sep 7, 7:11 PM EDT | Severe Thunderstorm Warning | AKQ | 49 min |
| Sep 7, 7:31 PM EDT | Severe Thunderstorm Warning | AKQ | 44 min |
| Sep 7, 7:51 PM EDT | Flash Flood Warning | AKQ | 3 hr |
| Sep 7, 8:14 PM EDT | Severe Thunderstorm Warning | AKQ | 20 min |
| Sep 8, 5:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Sep 9, 2:20 PM EDT | Special Weather Statement | AKQ | 40 min |
| Sep 9, 2:56 PM EDT | Special Weather Statement | AKQ | 49 min |
| Sep 18, 2:36 AM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Sep 21, 3:22 PM EDT | Flood Watch | AKQ | 60 hr |
| Sep 23, 2:57 PM EDT | Flash Flood Warning | AKQ | 6 hr |
| Sep 23, 4:19 PM EDT | Flash Flood Warning | AKQ | 6 hr |
| Oct 6, 5:32 AM EDT | Dense Fog Advisory | AKQ | 4 hr |
| Oct 23, 2:13 PM EDT | Frost Advisory | AKQ | 19 hr |
| Oct 31, 4:36 AM EDT | Freeze Watch | AKQ | 21 hr |
| Nov 1, 2:01 AM EDT | Freeze Warning | AKQ | 32 hr |
| Nov 17, 11:24 AM EST | Fire Weather Watch | AKQ | 16 hr |
| Nov 21, 11:16 PM EST | Special Weather Statement | AKQ | 44 min |
| Dec 2, 8:20 PM EST | Dense Fog Advisory | AKQ | 12 hr |
| Dec 10, 1:31 PM EST | Tornado Watch | SPC | 8 hr |
| Dec 10, 4:08 PM EST | Areal Flood Advisory | AKQ | 3 hr |
| Dec 10, 4:22 PM EST | Flash Flood Warning | AKQ | 3 hr |
| Dec 10, 4:49 PM EST | Areal Flood Advisory | AKQ | 3 hr |
| Dec 10, 4:53 PM EST | Mesoscale Discussion | SPC | 97 min |
| Dec 10, 9:50 PM EST | Areal Flood Advisory | AKQ | 3 hr |
| Dec 16, 2:01 PM EST | Flood Watch | AKQ | 40 hr |
| Dec 17, 5:58 PM EST | Areal Flood Advisory | AKQ | 3 hr |
| Dec 17, 8:49 PM EST | Areal Flood Advisory | AKQ | 4 hr |
| Dec 29, 5:30 AM EST | Dense Fog Advisory | AKQ | 4 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 | 22 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 27 |
| Special Weather Statement | 11 |
| Flooding | |
| Flash Flood Warning | 11 |
| River Flood Warning | 3 |
| Flood Watch | 6 |
| Areal Flood Advisory | 19 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.