Alert archive / North Carolina / Surry County
Weather alerts in Surry County, North Carolina, 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.
Surry County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 124
- Warnings
- 33
- Watches
- 13
- Advisories
- 27
- Busiest month
- July34 alerts
- Busiest day
- July 29, 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.
Surry County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 26 | 24 | 8% | 28 | 86% | 21 min |
| Flash flood warnings | 2 | 1 | 50% | 5 | 0% |
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 1, 10:22 PM EST | Dense Fog Advisory | RNK | 12 hr |
| Jan 3, 6:16 PM EST | Special Weather Statement | RNK | 29 min |
| Jan 7, 3:27 PM EST | Winter Weather Advisory | RNK | 39 hr |
| Jan 9, 5:04 AM EST | Dense Fog Advisory | RNK | 4 hr |
| Jan 12, 4:53 PM EST | Special Weather Statement | RNK | 37 min |
| Jan 12, 5:13 PM EST | Special Weather Statement | RNK | 47 min |
| Feb 26, 4:59 AM EST | Dense Fog Advisory | RNK | 5 hr |
| Feb 27, 3:09 AM EST | Wind Advisory | RNK | 30 hr |
| Mar 3, 5:07 PM EST | Special Weather Statement | RNK | 23 min |
| Mar 3, 5:22 PM EST | Special Weather Statement | RNK | 23 min |
| Mar 3, 5:49 PM EST | Special Weather Statement | RNK | 41 min |
| Mar 3, 6:30 PM EST | Special Weather Statement | RNK | 45 min |
| Mar 3, 7:11 PM EST | Severe Thunderstorm Warning | RNK | 30 min |
| Mar 3, 7:30 PM EST | Special Weather Statement | RNK | 45 min |
| Mar 3, 8:13 PM EST | Special Weather Statement | RNK | 62 min |
| Mar 11, 4:09 AM EST | Winter Weather Advisory | RNK | 45 hr |
| Mar 25, 6:55 AM EDT | Special Weather Statement | RNK | 35 min |
| Mar 30, 2:47 PM EDT | High Wind Watch | RNK | 21 hr |
| Mar 31, 11:57 AM EDT | High Wind Warning | RNK | 40 hr |
| Apr 6, 2:58 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 6, 3:42 PM EDT | Severe Thunderstorm Warning | RNK | 63 min |
| Apr 6, 3:57 PM EDT | Severe Thunderstorm Warning | RNK | 49 min |
| Apr 6, 4:31 PM EDT | Severe Thunderstorm Warning | RNK | 59 min |
| Apr 6, 5:06 PM EDT | Severe Thunderstorm Warning | RNK | 30 min |
| Apr 9, 2:04 PM EDT | Freeze Warning | RNK | 19 hr |
| Apr 10, 10:00 AM EDT | Frost Advisory | RNK | 23 hr |
| Apr 14, 3:09 PM EDT | Severe Thunderstorm Warning | RNK | 52 min |
| Apr 22, 6:51 AM EDT | Special Weather Statement | RNK | 39 min |
| Apr 22, 7:28 AM EDT | Special Weather Statement | RNK | 47 min |
| Apr 28, 4:30 PM EDT | Severe Thunderstorm Warning | RNK | 60 min |
| Apr 28, 5:09 PM EDT | Severe Thunderstorm Warning | RNK | 46 min |
| May 16, 2:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| May 16, 4:03 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 16, 6:42 PM EDT | Special Weather Statement | RNK | 33 min |
| May 16, 6:52 PM EDT | Severe Thunderstorm Warning | RNK | 53 min |
| May 16, 7:02 PM EDT | Severe Thunderstorm Warning | RNK | 43 min |
| May 16, 7:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| May 16, 7:56 PM EDT | Severe Thunderstorm Warning | RNK | 64 min |
| May 28, 9:22 PM EDT | Areal Flood Advisory | RNK | 4 hr |
| May 28, 11:38 PM EDT | Areal Flood Advisory | RNK | 9 hr |
| Jun 15, 7:38 PM EDT | Special Weather Statement | RNK | 37 min |
| Jun 15, 9:05 PM EDT | Special Weather Statement | RNK | 25 min |
| Jun 19, 1:02 PM EDT | Areal Flood Advisory | RNK | 6 hr |
| Jun 19, 2:40 PM EDT | Flood Watch | RNK | 72 hr |
| Jun 19, 11:42 PM EDT | Areal Flood Advisory | RNK | 5 hr |
| Jun 20, 1:13 AM EDT | Special Weather Statement | RNK | 47 min |
| Jun 20, 7:41 AM EDT | Areal Flood Advisory | RNK | 3 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, 7:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 1:06 PM EDT | Severe Thunderstorm Warning | RNK | 39 min |
| Jul 2, 2:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 2, 5:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 2, 6:25 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 3, 2:42 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 9, 9:42 AM EDT | Special Weather Statement | RNK | 48 min |
| Jul 9, 9:57 AM EDT | Severe Thunderstorm Warning | RNK | 33 min |
| Jul 13, 3:11 PM EDT | Special Weather Statement | RNK | 19 min |
| Jul 13, 3:18 PM EDT | Areal Flood Advisory | RNK | 4 hr |
| Jul 13, 3:43 PM EDT | Special Weather Statement | RNK | 32 min |
| Jul 14, 4:05 PM EDT | Special Weather Statement | RNK | 25 min |
| Jul 15, 3:50 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 15, 7:59 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jul 15, 9:36 PM EDT | Flash Flood Warning | RNK | 7 hr |
| Jul 15, 10:23 PM EDT | Areal Flood Advisory | RNK | 4 hr |
| Jul 18, 6:40 PM EDT | Areal Flood Advisory | RNK | 85 min |
| Jul 23, 3:29 PM EDT | Special Weather Statement | RNK | 31 min |
| Jul 23, 4:59 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jul 25, 2:05 PM EDT | Special Weather Statement | RNK | 25 min |
| Jul 25, 2:40 PM EDT | Special Weather Statement | RNK | 35 min |
| Jul 25, 3:17 PM EDT | Special Weather Statement | RNK | 43 min |
| Jul 25, 5:04 PM EDT | Special Weather Statement | RNK | 26 min |
| Jul 27, 9:48 PM EDT | Special Weather Statement | RNK | 27 min |
| Jul 28, 5:46 PM EDT | Severe Thunderstorm Warning | RNK | 59 min |
| Jul 28, 6:22 PM EDT | Severe Thunderstorm Warning | RNK | 68 min |
| Jul 28, 7:26 PM EDT | Special Weather Statement | RNK | 49 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, 4:42 PM EDT | Special Weather Statement | RNK | 33 min |
| Jul 29, 5:20 PM EDT | Special Weather Statement | RNK | 25 min |
| Jul 29, 5:48 PM EDT | Severe Thunderstorm Warning | RNK | 57 min |
| Jul 29, 5:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 29, 6:37 PM EDT | Severe Thunderstorm Warning | RNK | 68 min |
| Jul 29, 6:47 PM EDT | Severe Thunderstorm Warning | RNK | 58 min |
| Aug 6, 2:23 PM EDT | Special Weather Statement | RNK | 37 min |
| Aug 6, 3:21 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Aug 6, 3:36 PM EDT | Special Weather Statement | RNK | 39 min |
| Aug 7, 8:18 AM EDT | Mesoscale Discussion | SPC | 117 min |
| 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 14, 10:56 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 15, 2:31 AM EDT | Severe Thunderstorm Warning | RNK | 39 min |
| Aug 24, 1:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 26, 3:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 26, 6:15 PM EDT | Severe Thunderstorm Warning | RNK | 45 min |
| Aug 26, 6:44 PM EDT | Severe Thunderstorm Warning | RNK | 61 min |
| Aug 26, 7:23 PM EDT | Severe Thunderstorm Warning | RNK | 52 min |
| Aug 28, 4:38 AM EDT | Areal Flood Advisory | RNK | 5 hr |
| Aug 28, 8:52 AM EDT | Areal Flood Warning | RNK | 6 hr |
| Sep 7, 2:25 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 7, 8:19 PM EDT | Severe Thunderstorm Warning | RNK | 56 min |
| Sep 7, 8:59 PM EDT | Severe Thunderstorm Warning | RNK | 61 min |
| Sep 9, 3:19 AM EDT | Flood Watch | RNK | 23 hr |
| Sep 9, 1:11 PM EDT | Special Weather Statement | RNK | 64 min |
| Sep 9, 1:41 PM EDT | Severe Thunderstorm Warning | RNK | 64 min |
| Sep 9, 2:12 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Sep 9, 3:25 PM EDT | Areal Flood Advisory | RNK | 2 hr |
| Sep 9, 3:29 PM EDT | Flash Flood Warning | RNK | 2 hr |
| Sep 12, 2:38 PM EDT | Special Weather Statement | RNK | 37 min |
| Sep 12, 3:18 PM EDT | Special Weather Statement | RNK | 57 min |
| Sep 12, 3:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 13, 2:53 PM EDT | Severe Thunderstorm Warning | RNK | 48 min |
| Oct 8, 4:02 PM EDT | Frost Advisory | RNK | 17 hr |
| Oct 20, 3:09 PM EDT | Special Weather Statement | RNK | 36 min |
| 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 27, 2:21 AM EST | Wind Advisory | RNK | 35 hr |
| Dec 17, 5:01 AM EST | Wind Advisory | RNK | 47 hr |
| Dec 25, 1:39 PM EST | Flood Watch | RNK | 38 hr |
| Dec 26, 11:20 AM EST | Areal Flood Advisory | RNK | 5 hr |
| Dec 26, 3:33 PM EST | Areal Flood Advisory | RNK | 3 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 | 26 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 16 |
| Special Weather Statement | 35 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 2 |
| Flood Watch | 3 |
| Areal Flood Advisory | 16 |
| Winter | |
| Winter Weather Advisory | 2 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 1 |
| Frost Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 3 |
| 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.