Alert archive / North Carolina / Surry County
Weather alerts in Surry County, North Carolina, 2013
147 weather alerts in 2013, 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 2013. Tap one for its archive.
- Alerts
- 147
- Warnings
- 35
- Watches
- 23
- Advisories
- 39
- Busiest month
- July37 alerts
- Busiest day
- May 6, 20136 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, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 17 | 10 | 41% | 15 | 60% | 8 min |
| Flash flood warnings | 9 | 5 | 44% | 1 | 0% |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Blacksburg, VA: tornado warnings | 3 | 0 | 100% | 1 | 0% | |
| NWS Blacksburg, VA: severe thunderstorm warnings | 198 | 126 | 36% | 389 | 78% | 24 min |
| NWS Blacksburg, VA: flash flood warnings | 69 | 38 | 45% | 121 | 73% | 101 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 11, 2:37 PM EST | Dense Fog Advisory | RNK | 19 hr |
| Jan 12, 8:01 PM EST | Dense Fog Advisory | RNK | 14 hr |
| Jan 15, 4:31 AM EST | Flood Watch | RNK | 30 hr |
| Jan 16, 3:56 PM EST | Winter Storm Warning | RNK | 33 hr |
| Jan 16, 3:56 PM EST | Winter Weather Advisory | RNK | 12 hr |
| Jan 16, 4:02 PM EST | Flood Watch | RNK | 20 hr |
| Jan 17, 6:54 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 17, 9:27 PM EST | Areal Flood Advisory | RNK | 6 hr |
| Jan 24, 5:36 AM EST | Wind Advisory | RNK | 6 hr |
| Jan 24, 3:52 PM EST | Winter Weather Advisory | RNK | 41 hr |
| Jan 27, 5:00 AM EST | Freezing Rain Advisory | RNK | 29 hr |
| Jan 29, 4:07 PM EST | Wind Advisory | RNK | 69 hr |
| Jan 30, 4:24 AM EST | Flash Flood Watch | RNK | 21 hr |
| Jan 30, 3:21 PM EST | Mesoscale Discussion | SPC | 84 min |
| Jan 30, 3:42 PM EST | Severe Thunderstorm Watch | SPC | 5 hr |
| Jan 30, 5:02 PM EST | Areal Flood Advisory | RNK | 6 hr |
| Jan 30, 6:25 PM EST | Flash Flood Warning | RNK | 6 hr |
| Jan 30, 7:09 PM EST | Mesoscale Discussion | SPC | 66 min |
| Jan 30, 7:30 PM EST | Special Weather Statement | RNK | 75 min |
| Jan 30, 7:59 PM EST | Flash Flood Warning | RNK | 6 hr |
| Jan 31, 12:11 AM EST | Areal Flood Warning | RNK | 9 hr |
| Feb 8, 4:25 AM EST | Wind Advisory | RNK | 26 hr |
| Feb 21, 4:59 AM EST | Winter Weather Advisory | RNK | 53 hr |
| Feb 25, 4:08 AM EST | Winter Weather Advisory | RNK | 38 hr |
| Feb 25, 3:46 PM EST | Winter Storm Warning | RNK | 26 hr |
| Feb 26, 6:54 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 26, 9:35 PM EST | Dense Fog Advisory | RNK | 6 hr |
| Mar 5, 4:02 PM EST | Wind Advisory | RNK | 27 hr |
| Apr 4, 4:36 AM EDT | Winter Weather Advisory | RNK | 21 hr |
| Apr 11, 10:30 PM EDT | Special Weather Statement | RNK | 45 min |
| Apr 19, 2:23 PM EDT | Special Weather Statement | RNK | 37 min |
| Apr 19, 2:31 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 19, 2:34 PM EDT | Severe Thunderstorm Warning | RNK | 41 min |
| Apr 19, 3:15 PM EDT | Severe Thunderstorm Warning | RNK | 60 min |
| Apr 28, 10:18 PM EDT | Dense Fog Advisory | RNK | 8 hr |
| May 4, 4:05 AM EDT | Flood Watch | RNK | 4 days |
| May 6, 2:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| May 6, 3:15 PM EDT | Special Weather Statement | RNK | 60 min |
| May 6, 6:15 PM EDT | Severe Thunderstorm Warning | RNK | 45 min |
| May 6, 7:11 PM EDT | Severe Thunderstorm Warning | RNK | 34 min |
| May 6, 7:21 PM EDT | Special Weather Statement | RNK | 39 min |
| May 6, 7:59 PM EDT | Special Weather Statement | RNK | 46 min |
| May 6, 9:10 PM EDT | Special Weather Statement | RNK | 50 min |
| May 7, 1:49 PM EDT | Flash Flood Watch | RNK | 10 hr |
| May 7, 2:51 PM EDT | Special Weather Statement | RNK | 39 min |
| May 7, 3:42 PM EDT | Special Weather Statement | RNK | 63 min |
| May 8, 10:19 AM EDT | Flood Watch | RNK | 5 hr |
| May 9, 12:02 AM EDT | Dense Fog Advisory | RNK | 8 hr |
| May 17, 7:57 PM EDT | Special Weather Statement | RNK | 63 min |
| May 23, 7:12 PM EDT | Severe Thunderstorm Warning | RNK | 48 min |
| Jun 2, 4:13 PM EDT | Areal Flood Warning | RNK | 3 hr |
| Jun 3, 2:51 PM EDT | Special Weather Statement | RNK | 54 min |
| Jun 6, 3:35 AM EDT | Special Weather Statement | RNK | 55 min |
| Jun 6, 12:31 PM EDT | Areal Flood Advisory | RNK | 6 hr |
| Jun 6, 1:13 PM EDT | Flood Watch | RNK | 30 hr |
| Jun 6, 9:45 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jun 6, 11:14 PM EDT | Flash Flood Warning | RNK | 4 hr |
| Jun 7, 2:47 AM EDT | Areal Flood Warning | RNK | 6 hr |
| Jun 9, 9:00 PM EDT | Flash Flood Watch | RNK | 22 hr |
| Jun 10, 4:32 AM EDT | Special Weather Statement | RNK | 88 min |
| Jun 10, 2:02 PM EDT | Tornado Watch | SPC | 10 hr |
| Jun 13, 11:38 AM EDT | Mesoscale Discussion | SPC | 67 min |
| Jun 13, 1:40 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 3:15 PM EDT | Severe Thunderstorm Warning | RNK | 60 min |
| Jun 18, 2:47 PM EDT | Special Weather Statement | RNK | 28 min |
| Jun 24, 1:52 PM EDT | Special Weather Statement | RNK | 38 min |
| Jun 24, 2:34 PM EDT | Special Weather Statement | RNK | 41 min |
| Jun 25, 5:28 PM EDT | Special Weather Statement | RNK | 62 min |
| Jun 25, 6:14 PM EDT | Severe Thunderstorm Warning | RNK | 61 min |
| Jun 26, 2:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 26, 3:24 PM EDT | Severe Thunderstorm Warning | RNK | 66 min |
| Jun 28, 4:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 2, 4:19 AM EDT | Flash Flood Watch | RNK | 5 days |
| Jul 2, 4:55 AM EDT | Special Weather Statement | RNK | 80 min |
| Jul 2, 6:20 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jul 3, 5:51 AM EDT | Special Weather Statement | RNK | 54 min |
| Jul 4, 11:16 PM EDT | Special Weather Statement | RNK | 59 min |
| Jul 4, 11:40 PM EDT | Flash Flood Warning | RNK | 4 hr |
| Jul 5, 4:49 PM EDT | Areal Flood Advisory | RNK | 4 hr |
| Jul 5, 5:15 PM EDT | Severe Thunderstorm Warning | RNK | 60 min |
| Jul 6, 4:00 PM EDT | Flash Flood Watch | RNK | 29 hr |
| Jul 6, 8:02 PM EDT | Special Weather Statement | RNK | 43 min |
| Jul 7, 6:35 PM EDT | Areal Flood Advisory | RNK | 4 hr |
| Jul 10, 2:59 PM EDT | Flash Flood Watch | RNK | 11 hr |
| Jul 10, 6:44 PM EDT | Flash Flood Warning | RNK | 4 hr |
| Jul 11, 4:48 AM EDT | Flash Flood Watch | RNK | 44 hr |
| Jul 11, 4:33 PM EDT | Special Weather Statement | RNK | 27 min |
| Jul 11, 5:11 PM EDT | Special Weather Statement | RNK | 34 min |
| Jul 12, 4:44 PM EDT | Special Weather Statement | RNK | 31 min |
| Jul 13, 3:48 AM EDT | Flash Flood Watch | RNK | 21 hr |
| Jul 16, 4:57 PM EDT | Special Weather Statement | RNK | 63 min |
| Jul 16, 9:49 PM EDT | Special Weather Statement | RNK | 26 min |
| Jul 17, 2:07 PM EDT | Areal Flood Advisory | RNK | 4 hr |
| Jul 17, 2:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 17, 7:46 PM EDT | Flash Flood Warning | RNK | 6 hr |
| Jul 19, 2:27 PM EDT | Special Weather Statement | RNK | 33 min |
| Jul 19, 2:37 PM EDT | Severe Thunderstorm Warning | RNK | 23 min |
| Jul 20, 12:47 PM EDT | Severe Thunderstorm Warning | RNK | 43 min |
| Jul 22, 10:46 AM EDT | Flash Flood Watch | RNK | 13 hr |
| Jul 22, 3:11 PM EDT | Special Weather Statement | RNK | 34 min |
| Jul 22, 11:00 PM EDT | Areal Flood Advisory | RNK | 6 hr |
| Jul 22, 11:58 PM EDT | Flash Flood Warning | RNK | 3 hr |
| Jul 24, 1:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 25, 1:59 AM EDT | Flash Flood Warning | RNK | 6 hr |
| Jul 25, 2:59 AM EDT | Severe Thunderstorm Warning | RNK | 61 min |
| Jul 27, 9:49 AM EDT | Flash Flood Watch | RNK | 20 hr |
| Jul 27, 11:02 AM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jul 27, 2:38 PM EDT | River Flood Warning | RNK | 5 hr |
| Jul 27, 3:24 PM EDT | Areal Flood Warning | RNK | 3 hr |
| Aug 10, 1:39 PM EDT | Severe Thunderstorm Warning | RNK | 51 min |
| Aug 10, 5:19 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Aug 12, 4:17 PM EDT | Flash Flood Watch | RNK | 27 hr |
| Aug 12, 8:50 PM EDT | Special Weather Statement | RNK | 55 min |
| Aug 20, 2:18 AM EDT | Dense Fog Advisory | RNK | 8 hr |
| Aug 21, 1:26 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 22, 2:44 AM EDT | Dense Fog Advisory | RNK | 6 hr |
| Aug 22, 5:01 PM EDT | Special Weather Statement | RNK | 59 min |
| Aug 22, 5:15 PM EDT | Severe Thunderstorm Warning | RNK | 60 min |
| Aug 28, 6:53 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 29, 5:52 PM EDT | Special Weather Statement | RNK | 38 min |
| Aug 31, 3:13 PM EDT | Severe Thunderstorm Warning | RNK | 62 min |
| Aug 31, 3:29 PM EDT | Special Weather Statement | RNK | 31 min |
| Aug 31, 3:38 PM EDT | Severe Thunderstorm Warning | RNK | 67 min |
| Aug 31, 3:46 PM EDT | Flash Flood Warning | RNK | 4 hr |
| Sep 1, 1:17 PM EDT | Severe Thunderstorm Warning | RNK | 58 min |
| Sep 20, 4:47 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Sep 21, 3:56 PM EDT | Special Weather Statement | RNK | 64 min |
| Sep 21, 4:58 PM EDT | Special Weather Statement | RNK | 62 min |
| Oct 7, 3:35 AM EDT | Special Weather Statement | RNK | 55 min |
| Oct 7, 4:28 AM EDT | Special Weather Statement | RNK | 62 min |
| Oct 7, 5:26 AM EDT | Special Weather Statement | RNK | 64 min |
| Oct 23, 2:42 PM EDT | Frost Advisory | RNK | 18 hr |
| Oct 25, 3:52 AM EDT | Freeze Warning | RNK | 29 hr |
| Oct 31, 4:43 AM EDT | Wind Advisory | RNK | 26 hr |
| Nov 17, 3:06 AM EST | Dense Fog Advisory | RNK | 6 hr |
| Nov 17, 9:10 AM EST | Dense Fog Advisory | RNK | 110 min |
| Nov 25, 5:03 AM EST | Winter Weather Advisory | RNK | 34 hr |
| Nov 26, 3:39 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Nov 26, 4:28 AM EST | Wind Advisory | RNK | 42 hr |
| Nov 26, 11:05 AM EST | Flood Watch | RNK | 18 hr |
| Dec 5, 4:33 AM EST | Dense Fog Advisory | RNK | 3 hr |
| Dec 6, 5:09 AM EST | Winter Storm Watch | RNK | 25 hr |
| Dec 7, 5:45 AM EST | Winter Storm Warning | RNK | 51 hr |
| Dec 8, 7:32 PM EST | Freezing Rain Advisory | RNK | 13 hr |
| Dec 15, 5:57 AM EST | Dense Fog Advisory | RNK | 3 hr |
| Dec 22, 3:23 AM EST | Flood Watch | RNK | 33 hr |
| Dec 23, 3:28 AM EST | Areal Flood Advisory | RNK | 6 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 | 17 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 13 |
| Special Weather Statement | 37 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 9 |
| River Flood Warning | 1 |
| Flash Flood Watch | 11 |
| Flood Watch | 7 |
| Areal Flood Advisory | 13 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 6 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 11 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20122014
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.