Alert archive / North Carolina / Surry County
Weather alerts in Surry County, North Carolina, 2015
124 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 124
- Warnings
- 12
- Watches
- 18
- Advisories
- 23
- Busiest month
- June24 alerts
- Busiest day
- April 20, 20154 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, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 6 | 5 | 17% | 7 | 43% | 6 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Blacksburg, VA: tornado warnings | 1 | 0 | 100% | 0 | ||
| NWS Blacksburg, VA: severe thunderstorm warnings | 146 | 122 | 16% | 435 | 76% | 23 min |
| NWS Blacksburg, VA: flash flood warnings | 30 | 18 | 40% | 55 | 84% | 80 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 4, 5:20 PM EST | Special Weather Statement | RNK | 55 min |
| Jan 6, 2:40 PM EST | Wind Chill Advisory | RNK | 45 hr |
| Jan 13, 3:13 AM EST | Winter Weather Advisory | RNK | 33 hr |
| Feb 1, 3:28 PM EST | Wind Advisory | RNK | 31 hr |
| Feb 14, 4:28 AM EST | Wind Advisory | RNK | 32 hr |
| Feb 14, 4:29 AM EST | Wind Chill Advisory | RNK | 48 hr |
| Feb 15, 5:01 AM EST | Winter Storm Watch | RNK | 11 hr |
| Feb 15, 3:46 PM EST | Winter Storm Warning | RNK | 37 hr |
| Feb 16, 6:06 PM EST | Special Weather Statement | RNK | 54 min |
| Feb 16, 7:19 PM EST | Special Weather Statement | RNK | 56 min |
| Feb 17, 3:09 PM EST | Winter Weather Advisory | RNK | 36 hr |
| Feb 18, 4:10 AM EST | Wind Chill Advisory | RNK | 54 hr |
| Feb 19, 3:24 PM EST | Winter Storm Watch | RNK | 14 hr |
| Feb 20, 5:05 AM EST | Winter Weather Advisory | RNK | 49 hr |
| Feb 24, 3:57 AM EST | Winter Weather Advisory | RNK | 8 hr |
| Feb 24, 3:40 PM EST | Winter Storm Watch | RNK | 11 hr |
| Feb 24, 11:28 PM EST | Winter Storm Warning | RNK | 34 hr |
| Feb 25, 3:01 AM EST | Winter Weather Advisory | RNK | 30 hr |
| Feb 26, 3:00 PM EST | Winter Weather Advisory | RNK | 19 hr |
| Feb 27, 2:48 PM EST | Winter Weather Advisory | RNK | 19 hr |
| Feb 28, 3:16 PM EST | Winter Weather Advisory | RNK | 24 hr |
| Mar 4, 4:13 AM EST | Winter Weather Advisory | RNK | 39 hr |
| Mar 5, 7:58 PM EST | Winter Weather Advisory | RNK | 15 hr |
| Apr 3, 8:43 PM EDT | Wind Advisory | RNK | 17 hr |
| Apr 9, 5:06 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Apr 13, 3:52 PM EDT | Flood Watch | RNK | 28 hr |
| Apr 14, 4:29 PM EDT | Mesoscale Discussion | SPC | 46 min |
| Apr 14, 7:21 PM EDT | Special Weather Statement | RNK | 24 min |
| Apr 14, 7:38 PM EDT | Special Weather Statement | RNK | 37 min |
| Apr 18, 3:42 PM EDT | Flood Watch | RNK | 33 hr |
| Apr 19, 5:08 PM EDT | Areal Flood Advisory | RNK | 8 hr |
| Apr 19, 6:47 PM EDT | Flash Flood Warning | RNK | 6 hr |
| Apr 19, 6:57 PM EDT | Areal Flood Warning | RNK | 6 hr |
| Apr 20, 12:54 AM EDT | Areal Flood Warning | RNK | 9 hr |
| Apr 20, 1:54 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 20, 2:55 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 20, 6:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 22, 12:32 PM EDT | Mesoscale Discussion | SPC | 118 min |
| May 11, 3:24 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 15, 7:31 PM EDT | Special Weather Statement | RNK | 59 min |
| May 18, 4:26 PM EDT | Special Weather Statement | RNK | 64 min |
| May 19, 3:14 PM EDT | Special Weather Statement | RNK | 31 min |
| May 26, 11:36 PM EDT | Special Weather Statement | RNK | 39 min |
| May 28, 6:43 PM EDT | Special Weather Statement | RNK | 62 min |
| May 28, 7:28 PM EDT | Special Weather Statement | RNK | 62 min |
| May 29, 4:05 PM EDT | Special Weather Statement | RNK | 55 min |
| May 29, 5:21 PM EDT | Special Weather Statement | RNK | 54 min |
| Jun 1, 6:30 PM EDT | Special Weather Statement | RNK | 45 min |
| Jun 1, 8:19 PM EDT | Special Weather Statement | RNK | 41 min |
| Jun 2, 12:46 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 2, 3:56 PM EDT | Special Weather Statement | RNK | 34 min |
| Jun 8, 4:46 PM EDT | Special Weather Statement | RNK | 59 min |
| Jun 8, 4:54 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jun 8, 6:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 8, 9:10 PM EDT | Special Weather Statement | RNK | 35 min |
| Jun 13, 6:21 PM EDT | Special Weather Statement | RNK | 39 min |
| Jun 17, 4:50 PM EDT | Special Weather Statement | RNK | 55 min |
| Jun 17, 4:53 PM EDT | Severe Thunderstorm Warning | RNK | 28 min |
| Jun 18, 1:58 PM EDT | Special Weather Statement | RNK | 32 min |
| Jun 19, 2:18 PM EDT | Special Weather Statement | RNK | 57 min |
| Jun 19, 3:29 PM EDT | Special Weather Statement | RNK | 61 min |
| Jun 20, 1:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jun 21, 7:21 PM EDT | Special Weather Statement | RNK | 54 min |
| Jun 22, 3:29 PM EDT | Special Weather Statement | RNK | 61 min |
| Jun 26, 3:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 8:33 PM EDT | Special Weather Statement | RNK | 27 min |
| Jun 27, 2:06 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 5:40 PM EDT | Special Weather Statement | RNK | 65 min |
| Jun 27, 6:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 12:55 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 30, 2:22 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 5, 9:26 PM EDT | Special Weather Statement | RNK | 34 min |
| Jul 5, 9:58 PM EDT | Special Weather Statement | RNK | 32 min |
| Jul 13, 4:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 13, 4:39 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 13, 5:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 13, 8:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 13, 8:07 PM EDT | Severe Thunderstorm Warning | RNK | 53 min |
| Jul 14, 6:10 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 6:44 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 14, 9:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 18, 2:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 18, 5:04 PM EDT | Special Weather Statement | RNK | 56 min |
| Jul 20, 7:59 PM EDT | Special Weather Statement | RNK | 61 min |
| Aug 5, 7:20 PM EDT | Severe Thunderstorm Warning | RNK | 34 min |
| Aug 6, 6:56 PM EDT | Special Weather Statement | RNK | 34 min |
| Aug 10, 4:39 PM EDT | Special Weather Statement | RNK | 81 min |
| Aug 10, 5:16 PM EDT | Severe Thunderstorm Warning | RNK | 59 min |
| Aug 10, 7:15 PM EDT | Special Weather Statement | RNK | 75 min |
| Aug 10, 9:10 PM EDT | Special Weather Statement | RNK | 65 min |
| Aug 11, 1:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 15, 2:54 PM EDT | Special Weather Statement | RNK | 36 min |
| Aug 15, 3:26 PM EDT | Special Weather Statement | RNK | 64 min |
| Aug 15, 4:12 PM EDT | Special Weather Statement | RNK | 33 min |
| Aug 17, 11:00 PM EDT | Special Weather Statement | RNK | 60 min |
| Aug 18, 6:31 PM EDT | Special Weather Statement | RNK | 59 min |
| Aug 23, 9:37 PM EDT | Special Weather Statement | RNK | 23 min |
| Sep 3, 6:04 PM EDT | Special Weather Statement | RNK | 56 min |
| Sep 3, 7:06 PM EDT | Special Weather Statement | RNK | 54 min |
| Sep 4, 4:30 PM EDT | Special Weather Statement | RNK | 60 min |
| Sep 4, 4:47 PM EDT | Severe Thunderstorm Warning | RNK | 44 min |
| Sep 4, 6:50 PM EDT | Severe Thunderstorm Warning | RNK | 55 min |
| Sep 9, 5:32 PM EDT | Special Weather Statement | RNK | 58 min |
| Sep 10, 3:49 PM EDT | Special Weather Statement | RNK | 56 min |
| Sep 12, 1:05 AM EDT | Special Weather Statement | RNK | 40 min |
| Sep 29, 4:44 AM EDT | Flash Flood Watch | RNK | 25 hr |
| Sep 29, 4:59 PM EDT | Special Weather Statement | RNK | 61 min |
| Sep 30, 8:14 PM EDT | Special Weather Statement | RNK | 61 min |
| Oct 1, 5:05 AM EDT | Flash Flood Watch | RNK | 70 hr |
| Oct 2, 4:27 AM EDT | High Wind Watch | RNK | 12 hr |
| Oct 2, 4:16 PM EDT | Wind Advisory | RNK | 68 hr |
| Oct 3, 7:34 AM EDT | Special Weather Statement | RNK | 116 min |
| Oct 17, 3:31 AM EDT | Freeze Watch | RNK | 35 hr |
| Oct 17, 1:04 PM EDT | Frost Advisory | RNK | 20 hr |
| Oct 18, 2:39 PM EDT | Freeze Warning | RNK | 18 hr |
| Nov 17, 3:24 PM EST | Flash Flood Watch | RNK | 41 hr |
| Nov 19, 12:32 AM EST | Special Weather Statement | RNK | 88 min |
| Nov 19, 3:51 AM EST | Areal Flood Advisory | RNK | 3 hr |
| Nov 30, 3:53 PM EST | Flood Watch | RNK | 46 hr |
| Dec 12, 2:42 AM EST | Dense Fog Advisory | RNK | 6 hr |
| Dec 22, 3:28 PM EST | Flash Flood Watch | RNK | 28 hr |
| Dec 22, 7:12 PM EST | Dense Fog Advisory | RNK | 18 hr |
| Dec 24, 4:06 AM EST | Flash Flood Watch | RNK | 42 hr |
| Dec 28, 4:00 AM EST | Flood Watch | RNK | 26 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 | 6 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 20 |
| Special Weather Statement | 51 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 5 |
| Flood Watch | 4 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 10 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| High Wind Watch | 1 |
| Wind Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20142016
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.