Alert archive / Virginia / Bland County
Weather alerts in Bland County, Virginia, 2018
122 weather alerts in 2018, 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 2018. Tap one for its archive.
- Alerts
- 122
- Warnings
- 20
- Watches
- 19
- Advisories
- 44
- Busiest month
- October16 alerts
- Busiest day
- May 5, 20184 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, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 4 | 4 | 0% | 0 | ||
| Flash flood warnings | 3 | 2 | 33% | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Blacksburg, VA: tornado warnings | 13 | 4 | 69% | 18 | 33% | 8 min |
| NWS Blacksburg, VA: severe thunderstorm warnings | 211 | 147 | 30% | 440 | 70% | 23 min |
| NWS Blacksburg, VA: flash flood warnings | 132 | 82 | 38% | 290 | 84% | 132 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 1, 3:04 AM EST | Wind Chill Advisory | RNK | 31 hr |
| Jan 3, 4:04 AM EST | Wind Chill Watch | RNK | 47 hr |
| Jan 3, 4:04 AM EST | Wind Chill Advisory | RNK | 3 days |
| Jan 7, 2:51 PM EST | Winter Weather Advisory | RNK | 33 hr |
| Jan 12, 3:57 PM EST | Winter Weather Advisory | RNK | 18 hr |
| Jan 15, 2:32 PM EST | Winter Weather Advisory | RNK | 4 days |
| Jan 17, 4:23 AM EST | Wind Chill Advisory | RNK | 30 hr |
| Jan 28, 3:01 PM EST | Winter Weather Advisory | RNK | 45 hr |
| Feb 1, 4:37 AM EST | Winter Weather Advisory | RNK | 28 hr |
| Feb 3, 3:46 AM EST | Winter Weather Advisory | RNK | 39 hr |
| Feb 9, 1:00 PM EST | Flood Watch | RNK | 49 hr |
| Feb 28, 10:55 AM EST | High Wind Watch | RNK | 17 hr |
| Mar 1, 3:52 AM EST | High Wind Warning | RNK | 48 hr |
| Mar 2, 9:45 PM EST | Wind Advisory | RNK | 13 hr |
| Mar 8, 9:31 AM EST | Special Weather Statement | RNK | 59 min |
| Mar 9, 4:20 AM EST | Winter Weather Advisory | RNK | 29 hr |
| Mar 10, 4:39 AM EST | Winter Storm Watch | RNK | 23 hr |
| Mar 11, 4:47 AM EDT | Winter Storm Warning | RNK | 39 hr |
| Mar 17, 5:03 PM EDT | Special Weather Statement | RNK | 27 min |
| Mar 17, 5:36 PM EDT | Special Weather Statement | RNK | 24 min |
| Mar 19, 3:40 PM EDT | Winter Storm Watch | RNK | 13 hr |
| Mar 20, 5:06 AM EDT | Winter Storm Warning | RNK | 42 hr |
| Mar 20, 10:02 AM EDT | Special Weather Statement | RNK | 13 min |
| Mar 20, 9:55 PM EDT | Mesoscale Discussion | SPC | 6 hr |
| Mar 21, 3:02 PM EDT | Wind Advisory | RNK | 21 hr |
| Mar 22, 4:44 AM EDT | Winter Storm Watch | RNK | 35 hr |
| Mar 23, 3:46 PM EDT | Winter Storm Warning | RNK | 37 hr |
| Apr 3, 4:21 AM EDT | Wind Advisory | RNK | 45 hr |
| Apr 4, 2:17 AM EDT | Severe Thunderstorm Warning | RNK | 58 min |
| Apr 4, 3:17 AM EDT | Special Weather Statement | RNK | 43 min |
| Apr 6, 3:02 PM EDT | Winter Weather Advisory | RNK | 21 hr |
| Apr 15, 3:57 AM EDT | Flash Flood Watch | RNK | 20 hr |
| Apr 15, 2:34 PM EDT | Special Weather Statement | RNK | 56 min |
| Apr 15, 2:41 PM EDT | Severe Thunderstorm Warning | RNK | 64 min |
| Apr 18, 2:59 PM EDT | Wind Advisory | RNK | 26 hr |
| May 5, 3:13 PM EDT | Special Weather Statement | RNK | 32 min |
| May 5, 3:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| May 5, 7:15 PM EDT | Special Weather Statement | RNK | 30 min |
| May 5, 7:50 PM EDT | Special Weather Statement | RNK | 25 min |
| May 15, 2:28 PM EDT | Special Weather Statement | RNK | 32 min |
| May 15, 3:40 PM EDT | Special Weather Statement | RNK | 50 min |
| May 17, 4:13 AM EDT | Flash Flood Watch | RNK | 68 hr |
| May 19, 5:54 PM EDT | Special Weather Statement | RNK | 66 min |
| May 19, 8:53 PM EDT | Areal Flood Advisory | RNK | 6 hr |
| May 26, 11:14 AM EDT | Flash Flood Warning | RNK | 5 hr |
| May 27, 8:52 PM EDT | Special Weather Statement | RNK | 53 min |
| May 28, 3:13 PM EDT | Flash Flood Watch | RNK | 3 days |
| May 31, 5:51 PM EDT | Special Weather Statement | RNK | 24 min |
| Jun 8, 9:19 PM EDT | Special Weather Statement | RNK | 56 min |
| Jun 20, 3:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 20, 5:52 PM EDT | Special Weather Statement | RNK | 23 min |
| Jun 22, 12:24 PM EDT | Special Weather Statement | RNK | 21 min |
| Jun 25, 5:05 PM EDT | Special Weather Statement | RNK | 25 min |
| Jun 26, 1:45 PM EDT | Special Weather Statement | RNK | 60 min |
| Jun 26, 7:42 PM EDT | Special Weather Statement | RNK | 63 min |
| Jul 2, 5:05 PM EDT | Special Weather Statement | RNK | 55 min |
| Jul 2, 5:25 PM EDT | Severe Thunderstorm Warning | RNK | 65 min |
| Jul 24, 7:22 PM EDT | Areal Flood Advisory | RNK | 2 hr |
| Jul 31, 5:29 PM EDT | Special Weather Statement | RNK | 61 min |
| Jul 31, 6:23 PM EDT | Areal Flood Advisory | RNK | 112 min |
| Aug 1, 3:44 AM EDT | Flash Flood Watch | RNK | 64 hr |
| Aug 2, 4:28 AM EDT | Areal Flood Advisory | RNK | 3 hr |
| Aug 2, 7:45 PM EDT | Areal Flood Advisory | RNK | 2 hr |
| Aug 2, 10:01 PM EDT | Areal Flood Warning | RNK | 3 hr |
| Aug 3, 2:42 PM EDT | Areal Flood Warning | RNK | 3 hr |
| Aug 4, 3:43 AM EDT | Dense Fog Advisory | RNK | 5 hr |
| Aug 6, 7:42 PM EDT | Special Weather Statement | RNK | 48 min |
| Aug 7, 1:35 PM EDT | Special Weather Statement | RNK | 55 min |
| Aug 8, 1:53 PM EDT | Severe Thunderstorm Warning | RNK | 67 min |
| Aug 21, 5:55 PM EDT | Special Weather Statement | RNK | 65 min |
| Aug 27, 8:14 PM EDT | Special Weather Statement | RNK | 46 min |
| Aug 27, 8:49 PM EDT | Areal Flood Advisory | RNK | 116 min |
| Aug 30, 1:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Aug 30, 3:06 PM EDT | Special Weather Statement | RNK | 24 min |
| Aug 30, 5:54 PM EDT | Areal Flood Advisory | RNK | 2 hr |
| Sep 10, 1:25 PM EDT | Flash Flood Watch | RNK | 8 hr |
| Sep 10, 6:46 PM EDT | Areal Flood Advisory | RNK | 6 hr |
| Sep 11, 1:01 PM EDT | Flash Flood Watch | RNK | 8 hr |
| Sep 14, 4:28 AM EDT | Flash Flood Watch | RNK | 4 days |
| Sep 15, 5:47 AM EDT | Wind Advisory | RNK | 46 hr |
| Sep 22, 1:36 PM EDT | Flash Flood Watch | RNK | 14 hr |
| Sep 22, 5:57 PM EDT | Special Weather Statement | RNK | 33 min |
| Sep 23, 5:22 PM EDT | Special Weather Statement | RNK | 53 min |
| Sep 23, 6:31 PM EDT | Special Weather Statement | RNK | 44 min |
| Sep 23, 7:47 PM EDT | Areal Flood Advisory | RNK | 93 min |
| Sep 27, 3:11 AM EDT | Flash Flood Watch | RNK | 21 hr |
| Sep 27, 9:01 PM EDT | Areal Flood Advisory | RNK | 4 hr |
| Oct 6, 2:56 AM EDT | Dense Fog Advisory | RNK | 7 hr |
| Oct 7, 2:32 AM EDT | Dense Fog Advisory | RNK | 7 hr |
| Oct 10, 6:11 PM EDT | Areal Flood Advisory | RNK | 6 hr |
| Oct 10, 6:29 PM EDT | Flash Flood Warning | RNK | 6 hr |
| Oct 11, 12:30 AM EDT | Areal Flood Warning | RNK | 9 hr |
| Oct 11, 4:43 AM EDT | Wind Advisory | RNK | 30 hr |
| Oct 11, 9:22 AM EDT | Flash Flood Warning | RNK | 6 hr |
| Oct 11, 3:10 PM EDT | Areal Flood Warning | RNK | 6 hr |
| Oct 17, 3:26 AM EDT | Frost Advisory | RNK | 30 hr |
| Oct 18, 3:50 PM EDT | Frost Advisory | RNK | 17 hr |
| Oct 19, 3:49 PM EDT | Freeze Watch | RNK | 12 hr |
| Oct 20, 3:31 AM EDT | Freeze Warning | RNK | 30 hr |
| Oct 20, 3:31 AM EDT | Wind Advisory | RNK | 32 hr |
| Oct 20, 10:51 PM EDT | Special Weather Statement | RNK | 54 min |
| Oct 21, 4:02 AM EDT | Freeze Warning | RNK | 30 hr |
| Oct 28, 10:39 AM EDT | Wind Advisory | RNK | 25 hr |
| Nov 6, 7:18 AM EST | Special Weather Statement | RNK | 27 min |
| Nov 9, 1:27 PM EST | Wind Advisory | RNK | 24 hr |
| Nov 13, 3:35 PM EST | Winter Storm Watch | RNK | 24 hr |
| Nov 14, 5:15 AM EST | Winter Storm Warning | RNK | 38 hr |
| Nov 15, 3:18 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Nov 15, 7:14 PM EST | Wind Advisory | RNK | 17 hr |
| Nov 23, 4:04 AM EST | Winter Weather Advisory | RNK | 31 hr |
| Nov 25, 2:46 PM EST | Wind Advisory | RNK | 37 hr |
| Nov 27, 2:39 PM EST | Wind Advisory | RNK | 21 hr |
| Dec 4, 2:35 PM EST | Winter Weather Advisory | RNK | 28 hr |
| Dec 6, 3:31 PM EST | Winter Storm Watch | RNK | 47 hr |
| Dec 7, 3:27 AM EST | Winter Storm Warning | RNK | 3 days |
| Dec 9, 8:18 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 9, 12:34 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 21, 4:03 AM EST | Wind Advisory | RNK | 26 hr |
| Dec 21, 10:28 AM EST | Areal Flood Advisory | RNK | 6 hr |
| Dec 21, 7:06 PM EST | Areal Flood Warning | RNK | 12 hr |
| Dec 26, 3:00 PM EST | Flood Watch | RNK | 52 hr |
| Dec 28, 8:59 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 | 4 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 32 |
| Flooding | |
| Areal Flood Warning | 5 |
| Flash Flood Warning | 3 |
| Flash Flood Watch | 9 |
| Flood Watch | 2 |
| Areal Flood Advisory | 13 |
| Winter | |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 10 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Wind Chill Watch | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 13 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.