Alert archive / Virginia / Bland County
Weather alerts in Bland County, Virginia, 2013
134 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Bland County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 134
- Warnings
- 22
- Watches
- 20
- Advisories
- 37
- Busiest month
- January22 alerts
- Busiest day
- January 30, 201310 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Bland County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 10 | 5 | 50% | 1 | 100% | 2 min |
| Flash flood warnings | 2 | 1 | 50% | 3 | 100% | 20 min |
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 15, 4:31 AM EST | Flood Watch | RNK | 30 hr |
| Jan 16, 4:29 AM EST | Winter Storm Watch | RNK | 11 hr |
| Jan 16, 3:56 PM EST | Winter Storm Warning | RNK | 33 hr |
| Jan 16, 4:02 PM EST | Flood Watch | RNK | 20 hr |
| Jan 17, 12:38 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 21, 4:22 AM EST | Wind Chill Advisory | RNK | 55 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, 3:42 AM EST | High Wind Watch | RNK | 12 hr |
| Jan 29, 4:07 PM EST | High Wind Warning | RNK | 68 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, 8:31 AM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Jan 30, 10:07 AM EST | Special Weather Statement | RNK | 53 min |
| Jan 30, 10:19 AM EST | Mesoscale Discussion | SPC | 86 min |
| Jan 30, 11:12 AM EST | Special Weather Statement | RNK | 63 min |
| Jan 30, 12:54 PM EST | Mesoscale Discussion | SPC | 96 min |
| Jan 30, 12:58 PM EST | Special Weather Statement | RNK | 62 min |
| Jan 30, 3:27 PM EST | Severe Thunderstorm Warning | RNK | 63 min |
| Jan 30, 3:31 PM EST | Areal Flood Advisory | RNK | 6 hr |
| Jan 30, 5:34 PM EST | Areal Flood Warning | RNK | 18 hr |
| Jan 31, 4:19 AM EST | Winter Weather Advisory | RNK | 34 hr |
| Feb 1, 3:41 PM EST | Wind Chill Advisory | RNK | 17 hr |
| Feb 1, 3:41 PM EST | Winter Weather Advisory | RNK | 48 hr |
| Feb 2, 11:46 PM EST | Winter Storm Warning | RNK | 16 hr |
| Feb 3, 3:17 PM EST | Winter Weather Advisory | RNK | 10 hr |
| Feb 7, 3:37 PM EST | Winter Weather Advisory | RNK | 16 hr |
| Feb 8, 4:25 AM EST | Wind Advisory | RNK | 26 hr |
| Feb 10, 3:47 AM EST | Wind Advisory | RNK | 24 hr |
| Feb 11, 3:08 PM EST | Wind Advisory | RNK | 16 hr |
| Feb 15, 3:35 PM EST | Winter Weather Advisory | RNK | 46 hr |
| Feb 17, 4:27 AM EST | Wind Chill Advisory | RNK | 6 hr |
| Feb 18, 5:19 AM EST | Winter Weather Advisory | RNK | 29 hr |
| Feb 19, 3:41 PM EST | Wind Advisory | RNK | 20 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 26, 6:54 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 27, 3:16 PM EST | Winter Weather Advisory | RNK | 3 days |
| Mar 5, 4:48 AM EST | Winter Weather Advisory | RNK | 53 hr |
| Mar 12, 10:00 AM EDT | Special Weather Statement | RNK | 15 min |
| Mar 16, 3:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Mar 23, 4:15 PM EDT | Winter Storm Warning | RNK | 70 hr |
| Mar 23, 8:54 PM EDT | Winter Weather Advisory | RNK | 65 hr |
| Apr 4, 4:36 AM EDT | Winter Weather Advisory | RNK | 21 hr |
| Apr 4, 5:04 PM EDT | Winter Storm Warning | RNK | 5 hr |
| Apr 12, 12:56 AM EDT | Special Weather Statement | RNK | 49 min |
| Apr 17, 3:46 AM EDT | Special Weather Statement | RNK | 59 min |
| Apr 17, 5:00 AM EDT | Special Weather Statement | RNK | 75 min |
| Apr 17, 8:25 AM EDT | Special Weather Statement | RNK | 35 min |
| Apr 24, 4:25 PM EDT | Special Weather Statement | RNK | 35 min |
| Apr 24, 4:56 PM EDT | Severe Thunderstorm Warning | RNK | 49 min |
| May 4, 4:05 AM EDT | Flood Watch | RNK | 4 days |
| May 5, 6:56 PM EDT | Special Weather Statement | RNK | 49 min |
| May 6, 8:23 PM EDT | Areal Flood Advisory | RNK | 112 min |
| May 8, 10:19 AM EDT | Flood Watch | RNK | 5 hr |
| May 10, 4:30 PM EDT | Special Weather Statement | RNK | 45 min |
| May 10, 5:23 PM EDT | Areal Flood Advisory | RNK | 112 min |
| May 11, 3:46 PM EDT | Freeze Watch | RNK | 24 hr |
| May 12, 4:01 PM EDT | Frost Advisory | RNK | 17 hr |
| May 19, 6:56 PM EDT | Areal Flood Advisory | RNK | 2 hr |
| May 19, 8:22 PM EDT | Areal Flood Warning | RNK | 3 hr |
| May 21, 9:11 PM EDT | Special Weather Statement | RNK | 34 min |
| May 21, 9:32 PM EDT | Special Weather Statement | RNK | 28 min |
| May 22, 12:50 PM EDT | Special Weather Statement | RNK | 55 min |
| May 22, 2:37 PM EDT | Severe Thunderstorm Warning | RNK | 38 min |
| May 23, 6:02 PM EDT | Special Weather Statement | RNK | 28 min |
| Jun 1, 1:32 PM EDT | Special Weather Statement | RNK | 28 min |
| Jun 9, 9:00 PM EDT | Flash Flood Watch | RNK | 22 hr |
| Jun 12, 9:56 AM EDT | Special Weather Statement | RNK | 34 min |
| Jun 13, 11:38 AM EDT | Mesoscale Discussion | SPC | 67 min |
| Jun 13, 12:19 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 1:03 PM EDT | Severe Thunderstorm Warning | RNK | 57 min |
| Jun 13, 1:55 PM EDT | Severe Thunderstorm Warning | RNK | 65 min |
| Jun 13, 2:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jun 16, 7:53 PM EDT | Special Weather Statement | RNK | 22 min |
| Jun 16, 10:28 PM EDT | Special Weather Statement | RNK | 62 min |
| Jun 16, 11:16 PM EDT | Special Weather Statement | RNK | 44 min |
| Jun 26, 1:19 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 3:42 AM EDT | Special Weather Statement | RNK | 48 min |
| Jul 1, 2:38 PM EDT | Special Weather Statement | RNK | 22 min |
| Jul 1, 9:26 PM EDT | Special Weather Statement | RNK | 64 min |
| Jul 2, 4:19 AM EDT | Flash Flood Watch | RNK | 5 days |
| Jul 3, 3:00 PM EDT | Areal Flood Advisory | RNK | 15 hr |
| Jul 6, 4:00 PM EDT | Flash Flood Watch | RNK | 29 hr |
| Jul 7, 1:58 PM EDT | Special Weather Statement | RNK | 62 min |
| Jul 7, 2:20 PM EDT | Severe Thunderstorm Warning | RNK | 55 min |
| Jul 10, 2:59 PM EDT | Flash Flood Watch | RNK | 11 hr |
| Jul 12, 3:49 PM EDT | Special Weather Statement | RNK | 26 min |
| Jul 12, 4:53 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Jul 12, 6:28 PM EDT | Special Weather Statement | RNK | 47 min |
| Jul 17, 4:17 PM EDT | Special Weather Statement | RNK | 58 min |
| Jul 18, 6:19 PM EDT | Special Weather Statement | RNK | 41 min |
| Jul 18, 6:30 PM EDT | Special Weather Statement | RNK | 30 min |
| Jul 19, 5:27 PM EDT | Special Weather Statement | RNK | 33 min |
| Jul 22, 10:46 AM EDT | Flash Flood Watch | RNK | 13 hr |
| Jul 24, 4:50 AM EDT | Special Weather Statement | RNK | 40 min |
| Jul 27, 9:49 AM EDT | Flash Flood Watch | RNK | 20 hr |
| Aug 9, 6:51 PM EDT | Special Weather Statement | RNK | 54 min |
| Aug 11, 5:06 PM EDT | Special Weather Statement | RNK | 39 min |
| Aug 12, 4:17 PM EDT | Flash Flood Watch | RNK | 27 hr |
| Aug 12, 7:02 PM EDT | Flash Flood Warning | RNK | 6 hr |
| Aug 20, 2:18 AM EDT | Dense Fog Advisory | RNK | 8 hr |
| Aug 21, 1:26 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 21, 2:13 PM EDT | Flash Flood Warning | RNK | 6 hr |
| Aug 21, 6:48 PM EDT | Severe Thunderstorm Warning | RNK | 57 min |
| Aug 21, 7:21 PM EDT | Special Weather Statement | RNK | 54 min |
| Aug 23, 9:34 AM EDT | Special Weather Statement | RNK | 56 min |
| Aug 28, 6:53 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 31, 2:37 PM EDT | Severe Thunderstorm Warning | RNK | 53 min |
| Sep 2, 8:04 PM EDT | Special Weather Statement | RNK | 41 min |
| Sep 2, 8:58 PM EDT | Special Weather Statement | RNK | 62 min |
| Sep 2, 9:25 PM EDT | Special Weather Statement | RNK | 65 min |
| Sep 12, 3:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Sep 12, 6:44 PM EDT | Severe Thunderstorm Warning | RNK | 61 min |
| Oct 20, 12:04 PM EDT | Frost Advisory | RNK | 21 hr |
| Oct 23, 4:03 AM EDT | Freeze Warning | RNK | 29 hr |
| Oct 23, 2:42 PM EDT | Frost Advisory | RNK | 18 hr |
| Oct 24, 9:40 AM EDT | Freeze Watch | RNK | 23 hr |
| Oct 25, 3:52 AM EDT | Freeze Warning | RNK | 29 hr |
| Oct 31, 4:43 AM EDT | Wind Advisory | RNK | 26 hr |
| Nov 1, 3:37 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Nov 1, 4:12 AM EDT | Special Weather Statement | RNK | 63 min |
| Nov 1, 5:06 AM EDT | Severe Thunderstorm Warning | RNK | 54 min |
| Nov 1, 5:56 AM EDT | Special Weather Statement | RNK | 49 min |
| Nov 17, 11:49 PM EST | Special Weather Statement | RNK | 26 min |
| Nov 18, 12:16 AM EST | Special Weather Statement | RNK | 29 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, 5:43 AM EST | Winter Storm Watch | RNK | 9 hr |
| Nov 26, 3:00 PM EST | Winter Weather Advisory | RNK | 32 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 9, 2:39 PM EST | Winter Weather Advisory | RNK | 21 hr |
| Dec 21, 9:46 PM EST | Wind Advisory | RNK | 14 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 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.