Alert archive / Virginia / Campbell County
Weather alerts in Campbell 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.
Campbell County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 124
- Warnings
- 45
- Watches
- 13
- Advisories
- 20
- Busiest month
- July54 alerts
- Busiest day
- July 13, 202311 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Campbell County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 34 | 34 | 0% | 37 | 84% | 21 min |
| Flash flood warnings | 4 | 4 | 0% | 14 | 93% | 87 min |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Blacksburg, VA: tornado warnings | 8 | 1 | 88% | 2 | 100% | 6 min |
| NWS Blacksburg, VA: severe thunderstorm warnings | 225 | 197 | 12% | 776 | 75% | 22 min |
| NWS Blacksburg, VA: flash flood warnings | 30 | 18 | 40% | 60 | 70% | 88 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 |
|---|---|---|---|
| Dec 31, 8:35 PM EST | Dense Fog Advisory | RNK | 10 hr |
| Jan 9, 5:04 AM EST | Dense Fog Advisory | RNK | 4 hr |
| Feb 26, 4:59 AM EST | Dense Fog Advisory | RNK | 5 hr |
| Mar 3, 8:13 PM EST | Special Weather Statement | RNK | 62 min |
| Mar 3, 8:49 PM EST | Special Weather Statement | RNK | 26 min |
| Mar 3, 9:19 PM EST | Special Weather Statement | RNK | 41 min |
| Mar 24, 5:32 PM EDT | Special Weather Statement | RNK | 58 min |
| Mar 31, 11:57 AM EDT | Wind Advisory | RNK | 36 hr |
| 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, 3:26 PM EDT | Severe Thunderstorm Warning | RNK | 64 min |
| Apr 6, 4:01 PM EDT | Severe Thunderstorm Warning | RNK | 59 min |
| Apr 6, 4:06 PM EDT | Severe Thunderstorm Warning | RNK | 54 min |
| Apr 6, 4:27 PM EDT | Severe Thunderstorm Warning | RNK | 49 min |
| Apr 6, 4:41 PM EDT | Severe Thunderstorm Warning | RNK | 64 min |
| Apr 6, 4:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Apr 6, 5:00 PM EDT | Severe Thunderstorm Warning | RNK | 46 min |
| Apr 6, 6:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 6, 8:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 8, 2:32 PM EDT | Frost Advisory | RNK | 19 hr |
| Apr 9, 2:04 PM EDT | Freeze Warning | RNK | 19 hr |
| Apr 10, 10:00 AM EDT | Frost Advisory | RNK | 23 hr |
| Apr 17, 3:28 PM EDT | Fire Weather Watch | RNK | 12 hr |
| Apr 18, 3:31 AM EDT | Red Flag Warning | RNK | 16 hr |
| Apr 22, 8:07 AM EDT | Mesoscale Discussion | SPC | 113 min |
| Apr 22, 9:07 AM EDT | Severe Thunderstorm Warning | RNK | 53 min |
| Apr 22, 9:34 AM EDT | Mesoscale Discussion | SPC | 116 min |
| Apr 22, 10:07 AM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Apr 28, 9:34 PM EDT | River Flood Warning | RNK | 27 hr |
| May 13, 2:13 PM EDT | Mesoscale Discussion | SPC | 4 hr |
| May 16, 4:03 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 16, 8:15 PM EDT | Severe Thunderstorm Warning | RNK | 60 min |
| May 16, 8:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 29, 8:04 PM EDT | Special Weather Statement | RNK | 26 min |
| Jun 16, 3:18 PM EDT | Special Weather Statement | RNK | 42 min |
| Jun 19, 2:08 PM EDT | Severe Thunderstorm Warning | RNK | 67 min |
| Jun 19, 3:26 PM EDT | Special Weather Statement | RNK | 34 min |
| Jun 19, 4:17 PM EDT | Special Weather Statement | RNK | 28 min |
| Jun 23, 8:41 PM EDT | Special Weather Statement | RNK | 34 min |
| 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, 4:46 PM EDT | Special Weather Statement | RNK | 29 min |
| Jun 26, 5:17 PM EDT | Severe Thunderstorm Warning | RNK | 73 min |
| Jun 26, 6:08 PM EDT | Special Weather Statement | RNK | 37 min |
| Jun 26, 6:23 PM EDT | Severe Thunderstorm Warning | RNK | 52 min |
| Jun 26, 7:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 7:12 PM EDT | Severe Thunderstorm Warning | RNK | 78 min |
| Jun 26, 9:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 30, 11:17 PM EDT | Special Weather Statement | RNK | 28 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, 2:41 PM EDT | Severe Thunderstorm Warning | RNK | 64 min |
| Jul 3, 2:42 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 3, 8:03 PM EDT | Severe Thunderstorm Warning | RNK | 57 min |
| Jul 3, 8:54 PM EDT | Severe Thunderstorm Warning | RNK | 66 min |
| Jul 3, 9:28 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jul 7, 9:38 PM EDT | Special Weather Statement | RNK | 37 min |
| Jul 7, 10:10 PM EDT | Special Weather Statement | RNK | 35 min |
| Jul 7, 10:15 PM EDT | Special Weather Statement | RNK | 30 min |
| Jul 13, 2:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 13, 3:38 PM EDT | Severe Thunderstorm Warning | RNK | 52 min |
| Jul 13, 4:36 PM EDT | Severe Thunderstorm Warning | RNK | 39 min |
| Jul 13, 5:14 PM EDT | Severe Thunderstorm Warning | RNK | 46 min |
| Jul 13, 5:19 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jul 13, 5:47 PM EDT | Severe Thunderstorm Warning | RNK | 43 min |
| Jul 13, 6:26 PM EDT | Severe Thunderstorm Warning | RNK | 34 min |
| Jul 13, 6:30 PM EDT | Flash Flood Warning | RNK | 10 hr |
| Jul 13, 6:59 PM EDT | Severe Thunderstorm Warning | RNK | 61 min |
| Jul 13, 7:41 PM EDT | Severe Thunderstorm Warning | RNK | 64 min |
| Jul 13, 7:51 PM EDT | Special Weather Statement | RNK | 24 min |
| Jul 13, 8:20 PM EDT | Special Weather Statement | RNK | 25 min |
| Jul 13, 10:27 PM EDT | Flash Flood Watch | RNK | 6 hr |
| Jul 13, 10:28 PM EDT | Severe Thunderstorm Warning | RNK | 34 min |
| Jul 13, 10:35 PM EDT | Severe Thunderstorm Warning | RNK | 28 min |
| Jul 14, 12:10 AM EDT | Areal Flood Advisory | RNK | 112 min |
| Jul 14, 8:22 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jul 14, 9:05 PM EDT | Special Weather Statement | RNK | 40 min |
| Jul 15, 5:08 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jul 15, 7:10 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jul 15, 9:14 PM EDT | Areal Flood Advisory | RNK | 50 min |
| Jul 15, 9:56 PM EDT | Flash Flood Warning | RNK | 6 hr |
| Jul 15, 10:12 PM EDT | Areal Flood Advisory | RNK | 74 min |
| Jul 15, 11:07 PM EDT | Flash Flood Warning | RNK | 5 hr |
| Jul 15, 11:18 PM EDT | Flash Flood Warning | RNK | 5 hr |
| Jul 16, 12:30 AM EDT | Flash Flood Watch | RNK | 7 hr |
| Jul 16, 4:22 AM EDT | Areal Flood Warning | RNK | 3 hr |
| Jul 16, 2:09 PM EDT | Areal Flood Warning | RNK | 9 hr |
| Jul 17, 9:23 PM EDT | Areal Flood Advisory | RNK | 112 min |
| Jul 17, 9:42 PM EDT | Special Weather Statement | RNK | 33 min |
| Jul 19, 6:52 AM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jul 27, 2:45 PM EDT | Heat Advisory | RNK | 28 hr |
| Jul 28, 2:21 PM EDT | Heat Advisory | RNK | 30 hr |
| Jul 28, 6:29 PM EDT | Severe Thunderstorm Warning | RNK | 76 min |
| Jul 28, 7:20 PM EDT | Severe Thunderstorm Warning | RNK | 39 min |
| Jul 29, 2:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 29, 3:45 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 29, 5:36 PM EDT | Severe Thunderstorm Warning | RNK | 54 min |
| Jul 29, 5:59 PM EDT | Severe Thunderstorm Warning | RNK | 61 min |
| Jul 29, 6:19 PM EDT | Severe Thunderstorm Warning | RNK | 45 min |
| Jul 29, 6:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jul 29, 6:31 PM EDT | Severe Thunderstorm Warning | RNK | 59 min |
| Jul 29, 6:56 PM EDT | Severe Thunderstorm Warning | RNK | 48 min |
| Aug 7, 8:18 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 7, 12:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 1:51 PM EDT | Tornado Watch | SPC | 6 hr |
| Aug 7, 4:08 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Aug 14, 10:24 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 15, 1:28 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 15, 1:48 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 8, 6:32 PM EDT | Severe Thunderstorm Warning | RNK | 58 min |
| Sep 8, 7:25 PM EDT | Special Weather Statement | RNK | 35 min |
| Sep 8, 7:47 PM EDT | Special Weather Statement | RNK | 43 min |
| Sep 8, 8:11 PM EDT | Severe Thunderstorm Warning | RNK | 50 min |
| Sep 9, 12:26 PM EDT | Special Weather Statement | RNK | 64 min |
| Sep 12, 3:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 12, 4:47 PM EDT | Special Weather Statement | RNK | 28 min |
| Sep 12, 5:19 PM EDT | Special Weather Statement | RNK | 26 min |
| Sep 12, 5:48 PM EDT | Severe Thunderstorm Warning | RNK | 57 min |
| Oct 23, 1:35 PM EDT | Frost Advisory | RNK | 20 hr |
| Oct 30, 2:32 PM EDT | Freeze Watch | RNK | 14 hr |
| Oct 31, 4:02 AM EDT | Freeze Warning | RNK | 30 hr |
| Nov 1, 4:51 AM EDT | Freeze Warning | RNK | 28 hr |
| Nov 17, 11:24 AM EST | Fire Weather Watch | RNK | 20 hr |
| Nov 18, 2:05 AM EST | Dense Fog Advisory | RNK | 5 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 | 34 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 22 |
| Special Weather Statement | 24 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 4 |
| River Flood Warning | 1 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 10 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| 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.