Alert archive / Virginia / Henrico County
Weather alerts in Henrico County, Virginia, 2024
169 weather alerts in 2024, 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 2024. Tap one for its archive.
- Alerts
- 169
- Warnings
- 54
- Watches
- 23
- Advisories
- 37
- Busiest month
- August39 alerts
- Busiest day
- April 3, 20248 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 2 tornado warnings covering Henrico County in 2024 had a tornado report inside them.
Henrico County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 19 | 19 | 0% | 25 | 96% | 17 min |
| Flash flood warnings | 20 | 18 | 10% | 5 | 100% | 46 min |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wakefield, VA: tornado warnings | 43 | 3 | 93% | 3 | 100% | 11 min |
| NWS Wakefield, VA: severe thunderstorm warnings | 202 | 148 | 27% | 315 | 87% | 23 min |
| NWS Wakefield, VA: flash flood warnings | 144 | 110 | 24% | 212 | 98% | 74 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 8, 1:53 PM EST | Flood Watch | AKQ | 35 hr |
| Jan 8, 3:10 PM EST | Wind Advisory | AKQ | 33 hr |
| Jan 9, 1:46 PM EST | Tornado Watch | SPC | 9 hr |
| Jan 9, 4:40 PM EST | Severe Thunderstorm Warning | AKQ | 65 min |
| Jan 9, 5:22 PM EST | Flash Flood Warning | AKQ | 5 hr |
| Jan 9, 5:32 PM EST | Flash Flood Warning | AKQ | 5 hr |
| Jan 9, 6:13 PM EST | Severe Thunderstorm Warning | AKQ | 47 min |
| Jan 9, 7:38 PM EST | Flash Flood Warning | AKQ | 6 hr |
| Jan 9, 10:20 PM EST | Areal Flood Warning | AKQ | 9 hr |
| Jan 9, 10:29 PM EST | Areal Flood Warning | AKQ | 9 hr |
| Jan 10, 1:09 AM EST | Areal Flood Warning | AKQ | 6 hr |
| Jan 10, 4:46 AM EST | River Flood Warning | AKQ | 60 hr |
| Jan 10, 7:35 AM EST | River Flood Warning | AKQ | 54 hr |
| Jan 12, 3:20 AM EST | Flood Watch | AKQ | 25 hr |
| Jan 14, 8:19 PM EST | Winter Weather Advisory | AKQ | 42 hr |
| Jan 29, 9:43 PM EST | River Flood Warning | AKQ | 21 hr |
| Feb 10, 1:51 PM EST | Special Weather Statement | AKQ | 24 min |
| Mar 18, 3:45 PM EDT | Fire Weather Watch | AKQ | 24 hr |
| Mar 19, 3:23 PM EDT | Red Flag Warning | AKQ | 29 hr |
| Apr 3, 11:20 AM EDT | Mesoscale Discussion | SPC | 115 min |
| Apr 3, 12:38 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 3, 2:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Apr 3, 2:57 PM EDT | Severe Thunderstorm Warning | AKQ | 48 min |
| Apr 3, 3:04 PM EDT | Tornado Warning | AKQ | 26 min |
| Apr 3, 4:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Apr 3, 6:30 PM EDT | Special Weather Statement | AKQ | 30 min |
| Apr 3, 7:04 PM EDT | Special Weather Statement | AKQ | 41 min |
| Apr 4, 4:59 PM EDT | Special Weather Statement | AKQ | 46 min |
| Apr 11, 11:20 PM EDT | Severe Thunderstorm Warning | AKQ | 40 min |
| Apr 11, 11:45 PM EDT | Severe Thunderstorm Warning | AKQ | 60 min |
| Apr 12, 12:01 AM EDT | Severe Thunderstorm Warning | AKQ | 44 min |
| Apr 12, 12:15 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 15, 1:03 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Apr 15, 1:50 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 15, 4:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Apr 15, 5:58 PM EDT | Severe Thunderstorm Warning | AKQ | 47 min |
| Apr 15, 6:35 PM EDT | Severe Thunderstorm Warning | AKQ | 40 min |
| Apr 15, 6:57 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 15, 7:08 PM EDT | Severe Thunderstorm Warning | AKQ | 52 min |
| Apr 22, 3:26 AM EDT | Frost Advisory | AKQ | 29 hr |
| May 5, 2:48 AM EDT | Areal Flood Advisory | AKQ | 117 min |
| May 5, 5:52 AM EDT | Areal Flood Advisory | AKQ | 3 hr |
| May 6, 6:19 PM EDT | Flash Flood Warning | AKQ | 3 hr |
| May 8, 5:28 PM EDT | Mesoscale Discussion | SPC | 62 min |
| May 10, 3:57 PM EDT | Special Weather Statement | AKQ | 48 min |
| May 14, 11:01 PM EDT | Areal Flood Advisory | AKQ | 3 hr |
| May 21, 5:39 AM EDT | Dense Fog Advisory | AKQ | 3 hr |
| May 24, 4:07 PM EDT | Special Weather Statement | AKQ | 38 min |
| May 24, 4:16 PM EDT | Flash Flood Warning | AKQ | 2 hr |
| May 24, 4:44 PM EDT | Special Weather Statement | AKQ | 46 min |
| May 26, 4:57 PM EDT | Special Weather Statement | AKQ | 33 min |
| May 26, 5:04 PM EDT | Severe Thunderstorm Warning | AKQ | 41 min |
| May 26, 5:43 PM EDT | Severe Thunderstorm Warning | AKQ | 20 min |
| May 26, 5:53 PM EDT | Areal Flood Advisory | AKQ | 2 hr |
| May 26, 8:44 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 26, 9:20 PM EDT | Severe Thunderstorm Warning | AKQ | 55 min |
| May 26, 10:03 PM EDT | Special Weather Statement | AKQ | 42 min |
| May 26, 10:18 PM EDT | Mesoscale Discussion | SPC | 87 min |
| May 27, 3:39 PM EDT | Tornado Watch | SPC | 7 hr |
| May 27, 4:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| May 29, 3:57 PM EDT | Special Weather Statement | AKQ | 48 min |
| May 29, 4:44 PM EDT | Special Weather Statement | AKQ | 46 min |
| Jun 3, 4:20 PM EDT | Areal Flood Advisory | AKQ | 115 min |
| Jun 5, 3:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 6, 1:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jun 6, 2:26 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 6, 4:18 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 6, 5:00 PM EDT | Special Weather Statement | AKQ | 45 min |
| Jun 6, 5:46 PM EDT | Special Weather Statement | AKQ | 44 min |
| Jun 21, 2:39 PM EDT | Heat Advisory | AKQ | 29 hr |
| Jun 22, 2:18 PM EDT | Heat Advisory | AKQ | 30 hr |
| Jun 23, 4:13 PM EDT | Special Weather Statement | AKQ | 32 min |
| Jun 29, 3:05 PM EDT | Heat Advisory | AKQ | 27 hr |
| Jun 30, 12:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 3:21 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 5:26 PM EDT | Special Weather Statement | AKQ | 34 min |
| Jun 30, 6:02 PM EDT | Flash Flood Warning | AKQ | 3 hr |
| Jun 30, 6:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 30, 7:30 PM EDT | Severe Thunderstorm Warning | AKQ | 45 min |
| Jun 30, 8:09 PM EDT | Severe Thunderstorm Warning | AKQ | 29 min |
| Jun 30, 8:10 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 4, 3:28 PM EDT | Heat Advisory | AKQ | 29 hr |
| Jul 4, 5:16 PM EDT | Special Weather Statement | AKQ | 44 min |
| Jul 5, 4:01 AM EDT | Excessive Heat Warning | AKQ | 16 hr |
| Jul 5, 3:01 PM EDT | Heat Advisory | AKQ | 29 hr |
| Jul 6, 3:08 AM EDT | Excessive Heat Warning | AKQ | 17 hr |
| Jul 8, 2:32 PM EDT | Heat Advisory | AKQ | 29 hr |
| Jul 8, 4:05 PM EDT | Flash Flood Warning | AKQ | 3 hr |
| Jul 9, 3:27 PM EDT | Heat Advisory | AKQ | 29 hr |
| Jul 10, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 11, 2:43 PM EDT | Flood Watch | AKQ | 33 hr |
| Jul 12, 7:53 AM EDT | Flash Flood Warning | AKQ | 3 hr |
| Jul 12, 7:05 PM EDT | Flash Flood Warning | AKQ | 115 min |
| Jul 13, 6:58 AM EDT | Flash Flood Warning | AKQ | 3 hr |
| Jul 14, 3:17 PM EDT | Heat Advisory | AKQ | 29 hr |
| Jul 15, 3:06 PM EDT | Heat Advisory | AKQ | 29 hr |
| Jul 16, 2:36 PM EDT | Heat Advisory | AKQ | 29 hr |
| Jul 17, 2:38 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 17, 7:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 20, 8:44 AM EDT | Flood Watch | AKQ | 11 hr |
| Jul 20, 2:49 PM EDT | Flash Flood Warning | AKQ | 3 hr |
| Jul 22, 3:13 AM EDT | Flood Watch | AKQ | 17 hr |
| Jul 23, 3:57 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 23, 5:04 PM EDT | Flash Flood Warning | AKQ | 2 hr |
| Jul 24, 3:29 PM EDT | Areal Flood Advisory | AKQ | 101 min |
| Jul 24, 3:46 PM EDT | Flash Flood Warning | AKQ | 74 min |
| Jul 30, 12:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 31, 2:19 PM EDT | Special Weather Statement | AKQ | 26 min |
| Jul 31, 2:43 PM EDT | Special Weather Statement | AKQ | 32 min |
| Jul 31, 3:06 PM EDT | Excessive Heat Watch | AKQ | 23 hr |
| Jul 31, 3:06 PM EDT | Heat Advisory | AKQ | 29 hr |
| Aug 1, 2:29 PM EDT | Excessive Heat Warning | AKQ | 30 hr |
| Aug 2, 5:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Aug 2, 6:54 PM EDT | Severe Thunderstorm Warning | AKQ | 34 min |
| Aug 3, 1:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Aug 3, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 3, 3:39 PM EDT | Special Weather Statement | AKQ | 51 min |
| Aug 3, 4:24 PM EDT | Special Weather Statement | AKQ | 51 min |
| Aug 3, 5:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Aug 4, 7:33 PM EDT | Areal Flood Advisory | AKQ | 117 min |
| Aug 6, 2:43 PM EDT | Flood Watch | AKQ | 3 days |
| Aug 8, 12:43 PM EDT | Tornado Watch | SPC | 6 hr |
| Aug 8, 6:01 PM EDT | Flash Flood Warning | AKQ | 112 min |
| Aug 8, 6:37 PM EDT | Tornado Watch | SPC | 12 hr |
| Aug 8, 8:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 9, 4:47 AM EDT | Tornado Warning | AKQ | 28 min |
| Aug 9, 6:23 PM EDT | River Flood Warning | AKQ | 10 hr |
| Aug 17, 11:19 PM EDT | Flash Flood Warning | AKQ | 2 hr |
| Aug 18, 2:58 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 18, 3:28 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 18, 4:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 18, 4:42 PM EDT | Severe Thunderstorm Warning | AKQ | 48 min |
| Aug 19, 3:24 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 19, 3:39 PM EDT | Special Weather Statement | AKQ | 51 min |
| Aug 19, 4:02 PM EDT | Flash Flood Warning | AKQ | 3 hr |
| Aug 19, 4:15 PM EDT | Severe Thunderstorm Warning | AKQ | 45 min |
| Aug 19, 4:36 PM EDT | Flash Flood Warning | AKQ | 3 hr |
| Aug 26, 4:52 PM EDT | Special Weather Statement | AKQ | 38 min |
| Aug 26, 5:29 PM EDT | Special Weather Statement | AKQ | 46 min |
| Aug 26, 6:25 PM EDT | Special Weather Statement | AKQ | 65 min |
| Aug 26, 6:44 PM EDT | Areal Flood Advisory | AKQ | 2 hr |
| Aug 26, 6:59 PM EDT | Areal Flood Advisory | AKQ | 2 hr |
| Aug 28, 2:53 AM EDT | Heat Advisory | AKQ | 41 hr |
| Aug 28, 3:38 PM EDT | Flood Watch | AKQ | 33 hr |
| Aug 28, 4:21 PM EDT | Areal Flood Advisory | AKQ | 8 min |
| Aug 28, 4:29 PM EDT | Flash Flood Warning | AKQ | 106 min |
| Aug 29, 10:47 PM EDT | Severe Thunderstorm Warning | AKQ | 43 min |
| Aug 29, 11:31 PM EDT | Severe Thunderstorm Warning | AKQ | 44 min |
| Aug 30, 12:10 AM EDT | Flash Flood Warning | AKQ | 110 min |
| Aug 30, 12:29 AM EDT | Special Weather Statement | AKQ | 46 min |
| Sep 2, 3:25 AM EDT | Areal Flood Advisory | AKQ | 2 hr |
| Sep 16, 3:19 PM EDT | Flood Watch | AKQ | 34 hr |
| Sep 18, 1:02 AM EDT | Areal Flood Advisory | AKQ | 118 min |
| Sep 18, 1:31 AM EDT | Areal Flood Advisory | AKQ | 119 min |
| Sep 27, 12:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Sep 27, 5:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Sep 28, 3:55 PM EDT | River Flood Warning | AKQ | 5 days |
| Sep 30, 3:20 AM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Sep 30, 3:54 AM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Sep 30, 11:26 AM EDT | River Flood Warning | AKQ | 67 hr |
| Sep 30, 5:04 PM EDT | Flash Flood Warning | AKQ | 116 min |
| Oct 17, 2:56 PM EDT | Frost Advisory | AKQ | 18 hr |
| Oct 27, 2:59 AM EDT | Frost Advisory | AKQ | 30 hr |
| Nov 5, 2:28 AM EST | Dense Fog Advisory | AKQ | 7 hr |
| Nov 12, 1:49 PM EST | Frost Advisory | AKQ | 13 min |
| Nov 12, 2:02 PM EST | Frost Advisory | AKQ | 18 hr |
| Dec 11, 3:09 PM EST | Special Weather Statement | AKQ | 51 min |
| Dec 18, 4:02 AM EST | Dense Fog Advisory | AKQ | 5 hr |
| Dec 31, 4:04 PM EST | Mesoscale Discussion | SPC | 116 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 | 19 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 29 |
| Special Weather Statement | 26 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 20 |
| River Flood Warning | 6 |
| Flood Watch | 8 |
| Areal Flood Advisory | 15 |
| Winter | |
| Winter Weather Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 3 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 12 |
| Cold | |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20232025
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.