Alert archive / Virginia / Roanoke County
Weather alerts in Roanoke County, Virginia, 2025
173 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Roanoke County and its neighbors
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Alerts
- 173
- Warnings
- 44
- Watches
- 23
- Advisories
- 51
- Busiest month
- May30 alerts
- Busiest day
- May 13, 20258 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Roanoke County, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 20 | 16 | 20% | 3 | 67% | 20 min |
| Flash flood warnings | 6 | 3 | 50% | 1 | 0% |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Blacksburg, VA: tornado warnings | 2 | 0 | 100% | 1 | 0% | |
| NWS Blacksburg, VA: severe thunderstorm warnings | 231 | 173 | 25% | 694 | 72% | 24 min |
| NWS Blacksburg, VA: flash flood warnings | 77 | 41 | 47% | 173 | 77% | 94 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 3, 1:40 AM EST | Wind Advisory | RNK | 29 hr |
| Jan 3, 2:27 PM EST | Snow Squall Warning | RNK | 48 min |
| Jan 3, 2:34 PM EST | Winter Storm Watch | RNK | 24 hr |
| Jan 4, 3:02 AM EST | Winter Weather Advisory | RNK | 3 days |
| Jan 4, 2:31 PM EST | Winter Storm Warning | RNK | 52 hr |
| Jan 6, 2:44 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 9, 1:49 PM EST | Winter Weather Advisory | RNK | 38 hr |
| Jan 14, 3:20 AM EST | Cold Weather Advisory | RNK | 31 hr |
| Jan 16, 2:16 PM EST | Wind Advisory | RNK | 14 hr |
| Jan 19, 2:47 AM EST | Cold Weather Advisory | RNK | 33 hr |
| Jan 20, 2:31 PM EST | Cold Weather Advisory | RNK | 45 hr |
| Jan 20, 2:45 PM EST | Cold Weather Advisory | RNK | 20 hr |
| Jan 27, 2:44 PM EST | Wind Advisory | RNK | 24 hr |
| Jan 28, 2:52 PM EST | Wind Advisory | RNK | 27 hr |
| Jan 31, 9:02 AM EST | Areal Flood Warning | RNK | 11 hr |
| Feb 6, 11:40 AM EST | Areal Flood Advisory | RNK | 4 hr |
| Feb 6, 10:24 PM EST | Special Weather Statement | RNK | 36 min |
| Feb 9, 2:34 PM EST | Winter Storm Watch | RNK | 12 hr |
| Feb 10, 3:02 AM EST | Winter Storm Warning | RNK | 3 days |
| Feb 11, 4:06 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 11, 12:26 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 12, 11:58 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 13, 2:06 PM EST | Flood Watch | RNK | 67 hr |
| Feb 14, 3:12 PM EST | Winter Weather Advisory | RNK | 26 hr |
| Feb 15, 4:23 AM EST | High Wind Watch | RNK | 11 hr |
| Feb 15, 1:12 PM EST | Areal Flood Advisory | RNK | 4 hr |
| Feb 15, 1:47 PM EST | Areal Flood Warning | RNK | 6 hr |
| Feb 15, 2:57 PM EST | Wind Advisory | RNK | 38 hr |
| Feb 15, 4:40 PM EST | Flash Flood Warning | RNK | 6 hr |
| Feb 15, 4:57 PM EST | River Flood Warning | RNK | 27 hr |
| Feb 15, 10:55 PM EST | Areal Flood Warning | RNK | 11 hr |
| Feb 16, 3:00 AM EST | High Wind Warning | RNK | 26 hr |
| Feb 17, 4:41 AM EST | Wind Advisory | RNK | 7 hr |
| Feb 18, 3:13 AM EST | Winter Weather Advisory | RNK | 58 hr |
| Mar 4, 3:51 AM EST | Wind Advisory | RNK | 71 hr |
| Mar 5, 4:43 PM EST | Special Weather Statement | RNK | 32 min |
| Mar 6, 3:30 AM EST | High Wind Warning | RNK | 16 hr |
| Mar 15, 3:06 AM EDT | Wind Advisory | RNK | 35 hr |
| Mar 20, 2:18 AM EDT | Wind Advisory | RNK | 30 hr |
| Mar 21, 2:26 PM EDT | Red Flag Warning | RNK | 30 hr |
| Mar 26, 3:15 AM EDT | Red Flag Warning | RNK | 17 hr |
| Mar 31, 4:46 AM EDT | Special Weather Statement | RNK | 29 min |
| Mar 31, 5:17 AM EDT | Special Weather Statement | RNK | 28 min |
| Mar 31, 3:30 PM EDT | Special Weather Statement | RNK | 45 min |
| Apr 3, 4:31 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 8, 9:04 AM EDT | Freeze Warning | RNK | 24 hr |
| Apr 11, 12:37 AM EDT | Dense Fog Advisory | RNK | 7 hr |
| Apr 12, 2:19 PM EDT | Frost Advisory | RNK | 19 hr |
| Apr 14, 2:32 PM EDT | Wind Advisory | RNK | 37 hr |
| Apr 14, 3:25 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 14, 8:18 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Apr 16, 3:09 AM EDT | Frost Advisory | RNK | 30 hr |
| May 2, 3:41 AM EDT | Special Weather Statement | RNK | 64 min |
| May 3, 11:58 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 8, 7:11 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 8, 8:20 PM EDT | Severe Thunderstorm Warning | RNK | 40 min |
| May 8, 9:59 PM EDT | Areal Flood Advisory | RNK | 2 hr |
| May 11, 2:49 AM EDT | Flood Watch | RNK | 71 hr |
| May 12, 8:32 PM EDT | Areal Flood Advisory | RNK | 8 hr |
| May 12, 10:59 PM EDT | Flash Flood Warning | RNK | 5 hr |
| May 13, 2:18 AM EDT | Areal Flood Advisory | RNK | 3 hr |
| May 13, 3:59 PM EDT | Special Weather Statement | RNK | 31 min |
| May 13, 4:13 PM EDT | Special Weather Statement | RNK | 47 min |
| May 13, 4:33 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| May 13, 4:59 PM EDT | Special Weather Statement | RNK | 46 min |
| May 13, 5:08 PM EDT | Severe Thunderstorm Warning | RNK | 37 min |
| May 14, 10:56 AM EDT | Flood Watch | RNK | 8 hr |
| May 14, 2:14 PM EDT | Special Weather Statement | RNK | 31 min |
| May 15, 12:44 AM EDT | Dense Fog Advisory | RNK | 8 hr |
| May 15, 2:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| May 15, 5:07 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 16, 10:26 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 16, 12:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 16, 3:05 PM EDT | Severe Thunderstorm Warning | RNK | 55 min |
| May 16, 3:28 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 30, 1:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| May 30, 1:37 PM EDT | Tornado Watch | SPC | 6 hr |
| May 30, 2:46 PM EDT | Severe Thunderstorm Warning | RNK | 59 min |
| May 30, 3:05 PM EDT | Severe Thunderstorm Warning | RNK | 55 min |
| May 30, 3:28 PM EDT | Severe Thunderstorm Warning | RNK | 77 min |
| May 31, 1:30 PM EDT | Special Weather Statement | RNK | 30 min |
| May 31, 1:32 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 14, 1:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 15, 2:36 AM EDT | Flood Watch | RNK | 20 hr |
| Jun 16, 2:52 AM EDT | Flood Watch | RNK | 21 hr |
| Jun 16, 6:46 PM EDT | Special Weather Statement | RNK | 44 min |
| Jun 16, 8:34 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jun 16, 8:42 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jun 16, 9:28 PM EDT | Flash Flood Warning | RNK | 11 hr |
| Jun 17, 2:47 AM EDT | Flood Watch | RNK | 21 hr |
| Jun 17, 6:06 PM EDT | Areal Flood Advisory | RNK | 64 min |
| Jun 19, 1:22 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 19, 1:30 PM EDT | Severe Thunderstorm Warning | RNK | 46 min |
| Jun 19, 1:46 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 19, 2:05 PM EDT | Severe Thunderstorm Warning | RNK | 55 min |
| Jun 22, 2:02 PM EDT | Extreme Heat Watch | RNK | 56 hr |
| Jun 23, 1:14 PM EDT | Heat Advisory | RNK | 32 hr |
| Jun 24, 5:06 PM EDT | Heat Advisory | RNK | 27 hr |
| Jun 25, 2:00 PM EDT | Heat Advisory | RNK | 29 hr |
| Jun 26, 12:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 27, 10:34 AM EDT | Flood Watch | RNK | 12 hr |
| Jun 27, 4:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jun 27, 7:20 PM EDT | Severe Thunderstorm Warning | RNK | 55 min |
| Jun 27, 10:40 PM EDT | Special Weather Statement | RNK | 35 min |
| Jun 28, 12:22 AM EDT | Special Weather Statement | RNK | 23 min |
| Jun 28, 12:44 AM EDT | Special Weather Statement | RNK | 31 min |
| Jun 28, 1:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 28, 6:46 PM EDT | Special Weather Statement | RNK | 29 min |
| Jun 28, 7:20 PM EDT | Special Weather Statement | RNK | 25 min |
| Jun 28, 7:41 PM EDT | Severe Thunderstorm Warning | RNK | 49 min |
| Jun 28, 8:41 PM EDT | Areal Flood Advisory | RNK | 2 hr |
| Jun 29, 1:07 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 3:02 PM EDT | Severe Thunderstorm Warning | RNK | 39 min |
| Jul 1, 3:31 PM EDT | Areal Flood Advisory | RNK | 117 min |
| Jul 1, 6:11 PM EDT | Special Weather Statement | RNK | 34 min |
| Jul 1, 6:46 PM EDT | Special Weather Statement | RNK | 29 min |
| Jul 8, 1:59 PM EDT | Flood Watch | RNK | 54 hr |
| Jul 8, 7:27 PM EDT | Special Weather Statement | RNK | 33 min |
| Jul 8, 8:16 PM EDT | Severe Thunderstorm Warning | RNK | 47 min |
| Jul 9, 1:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 9, 1:22 PM EDT | Severe Thunderstorm Warning | RNK | 35 min |
| Jul 9, 2:02 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 10, 3:11 PM EDT | Special Weather Statement | RNK | 34 min |
| Jul 11, 4:19 AM EDT | Dense Fog Advisory | RNK | 5 hr |
| Jul 13, 7:23 PM EDT | Severe Thunderstorm Warning | RNK | 67 min |
| Jul 15, 4:07 AM EDT | Flood Watch | RNK | 20 hr |
| Jul 15, 4:52 PM EDT | Special Weather Statement | RNK | 23 min |
| Jul 15, 5:40 PM EDT | Areal Flood Advisory | RNK | 99 min |
| Jul 17, 3:38 PM EDT | Special Weather Statement | RNK | 22 min |
| Jul 18, 2:53 AM EDT | Flood Watch | RNK | 21 hr |
| Jul 18, 1:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 18, 3:15 PM EDT | Severe Thunderstorm Warning | RNK | 60 min |
| Jul 18, 3:28 PM EDT | Severe Thunderstorm Warning | RNK | 47 min |
| Jul 19, 5:40 PM EDT | Special Weather Statement | RNK | 35 min |
| Jul 19, 6:04 PM EDT | Flash Flood Warning | RNK | 6 hr |
| Jul 26, 4:59 PM EDT | Special Weather Statement | RNK | 31 min |
| Jul 26, 5:23 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jul 26, 5:34 PM EDT | Special Weather Statement | RNK | 41 min |
| Jul 31, 3:39 PM EDT | Severe Thunderstorm Warning | RNK | 36 min |
| Aug 1, 11:30 AM EDT | Areal Flood Advisory | RNK | 3 hr |
| Aug 1, 11:57 AM EDT | Flash Flood Warning | RNK | 6 hr |
| Aug 1, 12:34 PM EDT | Flood Watch | RNK | 8 hr |
| Aug 11, 9:19 PM EDT | Areal Flood Advisory | RNK | 2 hr |
| Aug 20, 4:24 PM EDT | Special Weather Statement | RNK | 36 min |
| Aug 21, 7:18 PM EDT | Areal Flood Advisory | RNK | 11 min |
| Aug 21, 7:29 PM EDT | Flash Flood Warning | RNK | 3 hr |
| Aug 21, 10:47 PM EDT | Areal Flood Warning | RNK | 10 hr |
| Sep 4, 1:41 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 4, 1:44 PM EDT | Special Weather Statement | RNK | 31 min |
| Sep 4, 2:15 PM EDT | Severe Thunderstorm Warning | RNK | 60 min |
| Sep 4, 2:37 PM EDT | Severe Thunderstorm Warning | RNK | 38 min |
| Sep 4, 3:15 PM EDT | Severe Thunderstorm Warning | RNK | 60 min |
| Oct 19, 4:25 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 19, 5:56 PM EDT | Special Weather Statement | RNK | 34 min |
| Oct 21, 7:18 PM EDT | Special Weather Statement | RNK | 27 min |
| Oct 23, 2:00 AM EDT | Frost Advisory | RNK | 31 hr |
| Oct 24, 12:51 PM EDT | Freeze Warning | RNK | 20 hr |
| Nov 15, 11:59 AM EST | Wind Advisory | RNK | 24 hr |
| Nov 15, 2:37 PM EST | Fire Weather Watch | RNK | 12 hr |
| Nov 16, 2:32 AM EST | Red Flag Warning | RNK | 15 hr |
| Nov 26, 1:21 AM EST | Wind Advisory | RNK | 31 hr |
| Nov 29, 3:00 AM EST | Winter Weather Advisory | RNK | 33 hr |
| Dec 1, 12:13 AM EST | Winter Weather Advisory | RNK | 35 hr |
| Dec 2, 2:59 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 4, 3:26 AM EST | Winter Weather Advisory | RNK | 33 hr |
| Dec 7, 1:39 AM EST | Winter Weather Advisory | RNK | 58 hr |
| Dec 7, 9:18 PM EST | Winter Storm Warning | RNK | 20 hr |
| Dec 11, 1:33 PM EST | Winter Weather Advisory | RNK | 22 hr |
| Dec 13, 4:01 AM EST | Cold Weather Advisory | RNK | 54 hr |
| Dec 18, 2:00 AM EST | High Wind Watch | RNK | 11 hr |
| Dec 18, 12:43 PM EST | High Wind Warning | RNK | 33 hr |
| Dec 19, 2:57 AM EST | Special Weather Statement | RNK | 48 min |
| Dec 28, 12:20 PM EST | High Wind Warning | RNK | 43 hr |
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 archive20242026
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.