Alert archive / North Carolina / Surry County
Weather alerts in Surry County, North Carolina, 2016
140 weather alerts in 2016, 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 2016. Tap one for its archive.
- Alerts
- 140
- Warnings
- 36
- Watches
- 14
- Advisories
- 18
- Busiest month
- July26 alerts
- Busiest day
- September 29, 20169 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, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 23 | 18 | 22% | 22 | 59% | 17 min |
| Flash flood warnings | 3 | 1 | 67% | 8 | 100% | 204 min |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Blacksburg, VA: tornado warnings | 12 | 1 | 92% | 3 | 100% | 8 min |
| NWS Blacksburg, VA: severe thunderstorm warnings | 294 | 248 | 16% | 752 | 81% | 24 min |
| NWS Blacksburg, VA: flash flood warnings | 38 | 20 | 47% | 69 | 88% | 141 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 12, 3:45 AM EST | Wind Advisory | RNK | 20 hr |
| Jan 20, 3:40 AM EST | Winter Weather Advisory | RNK | 19 hr |
| Jan 20, 10:33 AM EST | Winter Storm Watch | RNK | 17 hr |
| Jan 21, 3:30 AM EST | Winter Storm Warning | RNK | 66 hr |
| Jan 22, 4:47 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 22, 11:47 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 22, 4:42 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 22, 6:06 PM EST | Special Weather Statement | RNK | 54 min |
| Jan 23, 9:18 PM EST | Winter Weather Advisory | RNK | 9 hr |
| Feb 3, 4:00 AM EST | Flash Flood Watch | RNK | 11 hr |
| Feb 3, 10:45 AM EST | Areal Flood Advisory | RNK | 5 hr |
| Feb 3, 5:19 PM EST | Areal Flood Warning | RNK | 3 hr |
| Feb 3, 8:23 PM EST | Areal Flood Warning | RNK | 3 hr |
| Feb 13, 2:30 PM EST | Winter Storm Watch | RNK | 14 hr |
| Feb 14, 8:01 AM EST | Winter Storm Warning | RNK | 51 hr |
| Feb 15, 2:11 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 15, 8:06 PM EST | Special Weather Statement | RNK | 84 min |
| Feb 21, 6:13 AM EST | Dense Fog Advisory | RNK | 4 hr |
| Feb 23, 5:19 AM EST | Flood Watch | RNK | 36 hr |
| Feb 24, 10:46 AM EST | Mesoscale Discussion | SPC | 119 min |
| Feb 24, 11:34 AM EST | Special Weather Statement | RNK | 56 min |
| Feb 24, 12:19 PM EST | Severe Thunderstorm Warning | RNK | 41 min |
| Mar 3, 6:30 AM EST | Winter Weather Advisory | RNK | 21 hr |
| Mar 13, 8:00 PM EDT | Special Weather Statement | RNK | 60 min |
| Mar 13, 9:01 PM EDT | Special Weather Statement | RNK | 59 min |
| Mar 13, 9:45 PM EDT | Special Weather Statement | RNK | 60 min |
| Mar 14, 2:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Mar 14, 6:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 19, 3:50 PM EDT | Freeze Watch | RNK | 23 hr |
| Mar 20, 3:01 PM EDT | Freeze Warning | RNK | 19 hr |
| Mar 21, 3:13 AM EDT | Freeze Watch | RNK | 12 hr |
| Mar 21, 3:14 PM EDT | Freeze Warning | RNK | 19 hr |
| Apr 1, 4:37 AM EDT | Special Weather Statement | RNK | 53 min |
| Apr 1, 5:28 AM EDT | Special Weather Statement | RNK | 62 min |
| Apr 2, 5:13 AM EDT | High Wind Warning | RNK | 25 hr |
| Apr 4, 3:26 AM EDT | Freeze Watch | RNK | 25 hr |
| Apr 5, 4:17 AM EDT | Freeze Warning | RNK | 29 hr |
| Apr 8, 5:12 AM EDT | Hard Freeze Watch | RNK | 24 hr |
| Apr 8, 7:42 AM EDT | Wind Advisory | RNK | 32 hr |
| Apr 9, 5:03 AM EDT | Hard Freeze Warning | RNK | 29 hr |
| Apr 28, 3:06 PM EDT | Severe Thunderstorm Warning | RNK | 54 min |
| Apr 28, 3:42 PM EDT | Special Weather Statement | RNK | 48 min |
| Apr 28, 3:56 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Apr 28, 4:13 PM EDT | Severe Thunderstorm Warning | RNK | 62 min |
| Apr 28, 4:21 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 1, 9:09 AM EDT | Special Weather Statement | RNK | 51 min |
| May 1, 11:50 PM EDT | Special Weather Statement | RNK | 25 min |
| May 2, 1:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| May 2, 2:17 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 2, 3:44 PM EDT | Severe Thunderstorm Warning | RNK | 31 min |
| May 2, 4:11 PM EDT | Severe Thunderstorm Warning | RNK | 64 min |
| May 2, 6:32 PM EDT | Special Weather Statement | RNK | 58 min |
| May 2, 7:56 PM EDT | Special Weather Statement | RNK | 64 min |
| May 2, 8:38 PM EDT | Special Weather Statement | RNK | 52 min |
| May 2, 9:23 PM EDT | Flash Flood Warning | RNK | 6 hr |
| May 3, 1:57 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 12, 3:42 PM EDT | Severe Thunderstorm Warning | RNK | 63 min |
| May 21, 2:20 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 3, 3:02 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 4, 7:57 PM EDT | Special Weather Statement | RNK | 63 min |
| Jun 5, 3:27 PM EDT | Special Weather Statement | RNK | 33 min |
| Jun 15, 1:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 15, 4:23 PM EDT | Special Weather Statement | RNK | 52 min |
| Jun 16, 10:51 PM EDT | Severe Thunderstorm Warning | RNK | 54 min |
| Jun 23, 3:52 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 23, 8:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jun 23, 9:29 PM EDT | Severe Thunderstorm Warning | RNK | 61 min |
| Jun 23, 10:30 PM EDT | Special Weather Statement | RNK | 60 min |
| Jun 27, 1:57 PM EDT | Special Weather Statement | RNK | 63 min |
| Jun 27, 3:45 PM EDT | Special Weather Statement | RNK | 45 min |
| Jun 29, 4:49 PM EDT | Special Weather Statement | RNK | 41 min |
| Jun 30, 3:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 11:47 PM EDT | Special Weather Statement | RNK | 58 min |
| Jul 1, 4:19 PM EDT | Special Weather Statement | RNK | 41 min |
| Jul 2, 12:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 9:58 PM EDT | Severe Thunderstorm Warning | RNK | 62 min |
| Jul 5, 2:10 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 3:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 8, 3:53 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 8, 5:48 PM EDT | Severe Thunderstorm Warning | RNK | 72 min |
| Jul 8, 6:57 PM EDT | Special Weather Statement | RNK | 33 min |
| Jul 8, 7:06 PM EDT | Severe Thunderstorm Warning | RNK | 54 min |
| Jul 8, 7:54 PM EDT | Severe Thunderstorm Warning | RNK | 33 min |
| Jul 11, 4:24 PM EDT | Special Weather Statement | RNK | 66 min |
| Jul 11, 4:44 PM EDT | Special Weather Statement | RNK | 46 min |
| Jul 13, 1:11 PM EDT | Special Weather Statement | RNK | 34 min |
| Jul 14, 2:54 PM EDT | Special Weather Statement | RNK | 51 min |
| Jul 14, 3:23 PM EDT | Severe Thunderstorm Warning | RNK | 44 min |
| Jul 15, 2:30 PM EDT | Special Weather Statement | RNK | 60 min |
| Jul 15, 2:41 PM EDT | Severe Thunderstorm Warning | RNK | 64 min |
| Jul 19, 7:01 PM EDT | Special Weather Statement | RNK | 59 min |
| Jul 19, 7:09 PM EDT | Severe Thunderstorm Warning | RNK | 66 min |
| Jul 19, 7:20 PM EDT | Severe Thunderstorm Warning | RNK | 32 min |
| Jul 26, 4:09 PM EDT | Special Weather Statement | RNK | 36 min |
| Jul 27, 1:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 4:31 PM EDT | Severe Thunderstorm Warning | RNK | 59 min |
| Jul 31, 2:10 PM EDT | Special Weather Statement | RNK | 50 min |
| Jul 31, 3:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 2, 3:46 PM EDT | Special Weather Statement | RNK | 44 min |
| Aug 3, 8:59 AM EDT | Areal Flood Advisory | RNK | 3 hr |
| Aug 3, 1:19 PM EDT | Areal Flood Advisory | RNK | 6 hr |
| Aug 3, 2:23 PM EDT | Flash Flood Watch | RNK | 36 hr |
| Aug 3, 2:29 PM EDT | Areal Flood Advisory | RNK | 5 hr |
| Aug 3, 3:41 PM EDT | Areal Flood Advisory | RNK | 4 hr |
| Aug 3, 5:43 PM EDT | Flash Flood Warning | RNK | 6 hr |
| Aug 3, 11:52 PM EDT | Areal Flood Warning | RNK | 6 hr |
| Aug 8, 4:35 AM EDT | Special Weather Statement | RNK | 40 min |
| Aug 9, 5:18 PM EDT | Special Weather Statement | RNK | 57 min |
| Aug 9, 5:45 PM EDT | Special Weather Statement | RNK | 30 min |
| Aug 9, 8:09 PM EDT | Special Weather Statement | RNK | 66 min |
| Aug 14, 5:18 PM EDT | Special Weather Statement | RNK | 27 min |
| Aug 17, 1:04 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Aug 17, 2:45 PM EDT | Special Weather Statement | RNK | 60 min |
| Aug 27, 3:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Aug 31, 11:41 PM EDT | Special Weather Statement | RNK | 64 min |
| Sep 26, 4:03 PM EDT | Severe Thunderstorm Warning | RNK | 42 min |
| Sep 26, 4:15 PM EDT | Special Weather Statement | RNK | 30 min |
| Sep 26, 6:46 PM EDT | Special Weather Statement | RNK | 59 min |
| Sep 28, 3:13 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 28, 4:41 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 28, 5:40 PM EDT | Severe Thunderstorm Warning | RNK | 65 min |
| Sep 28, 7:02 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Sep 28, 9:26 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Sep 29, 1:22 PM EDT | Special Weather Statement | RNK | 53 min |
| Sep 29, 1:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Sep 29, 1:48 PM EDT | Special Weather Statement | RNK | 57 min |
| Sep 29, 2:25 PM EDT | Severe Thunderstorm Warning | RNK | 50 min |
| Sep 29, 2:33 PM EDT | Severe Thunderstorm Warning | RNK | 42 min |
| Sep 29, 3:15 PM EDT | Severe Thunderstorm Warning | RNK | 60 min |
| Sep 29, 6:16 PM EDT | Areal Flood Advisory | RNK | 119 min |
| Sep 29, 7:04 PM EDT | Severe Thunderstorm Warning | RNK | 56 min |
| Sep 29, 8:21 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Sep 29, 8:30 PM EDT | Special Weather Statement | RNK | 60 min |
| Sep 29, 9:19 PM EDT | Flash Flood Warning | RNK | 3 hr |
| Sep 30, 12:50 AM EDT | Special Weather Statement | RNK | 40 min |
| Oct 9, 4:46 AM EDT | Wind Advisory | RNK | 13 hr |
| Nov 7, 3:58 PM EST | Frost Advisory | RNK | 17 hr |
| Nov 19, 3:41 AM EST | Wind Advisory | RNK | 51 hr |
| Dec 16, 2:24 PM EST | Freezing Rain Advisory | RNK | 19 hr |
| Dec 28, 2:17 PM EST | Wind Advisory | RNK | 52 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 archive20152017
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.