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

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings440%0
Flash flood warnings3233%0

Each office's whole area, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Blacksburg, VA: tornado warnings13469%1833%8 min
NWS Blacksburg, VA: severe thunderstorm warnings21114730%44070%23 min
NWS Blacksburg, VA: flash flood warnings1328238%29084%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.

IssuedProductOfficeLasted
Jan 1, 3:04 AM ESTWind Chill AdvisoryRNK31 hr
Jan 3, 4:04 AM ESTWind Chill WatchRNK47 hr
Jan 3, 4:04 AM ESTWind Chill AdvisoryRNK3 days
Jan 7, 2:51 PM ESTWinter Weather AdvisoryRNK33 hr
Jan 12, 3:57 PM ESTWinter Weather AdvisoryRNK18 hr
Jan 15, 2:32 PM ESTWinter Weather AdvisoryRNK4 days
Jan 17, 4:23 AM ESTWind Chill AdvisoryRNK30 hr
Jan 28, 3:01 PM ESTWinter Weather AdvisoryRNK45 hr
Feb 1, 4:37 AM ESTWinter Weather AdvisoryRNK28 hr
Feb 3, 3:46 AM ESTWinter Weather AdvisoryRNK39 hr
Feb 9, 1:00 PM ESTFlood WatchRNK49 hr
Feb 28, 10:55 AM ESTHigh Wind WatchRNK17 hr
Mar 1, 3:52 AM ESTHigh Wind WarningRNK48 hr
Mar 2, 9:45 PM ESTWind AdvisoryRNK13 hr
Mar 8, 9:31 AM ESTSpecial Weather StatementRNK59 min
Mar 9, 4:20 AM ESTWinter Weather AdvisoryRNK29 hr
Mar 10, 4:39 AM ESTWinter Storm WatchRNK23 hr
Mar 11, 4:47 AM EDTWinter Storm WarningRNK39 hr
Mar 17, 5:03 PM EDTSpecial Weather StatementRNK27 min
Mar 17, 5:36 PM EDTSpecial Weather StatementRNK24 min
Mar 19, 3:40 PM EDTWinter Storm WatchRNK13 hr
Mar 20, 5:06 AM EDTWinter Storm WarningRNK42 hr
Mar 20, 10:02 AM EDTSpecial Weather StatementRNK13 min
Mar 20, 9:55 PM EDTMesoscale DiscussionSPC6 hr
Mar 21, 3:02 PM EDTWind AdvisoryRNK21 hr
Mar 22, 4:44 AM EDTWinter Storm WatchRNK35 hr
Mar 23, 3:46 PM EDTWinter Storm WarningRNK37 hr
Apr 3, 4:21 AM EDTWind AdvisoryRNK45 hr
Apr 4, 2:17 AM EDTSevere Thunderstorm WarningRNK58 min
Apr 4, 3:17 AM EDTSpecial Weather StatementRNK43 min
Apr 6, 3:02 PM EDTWinter Weather AdvisoryRNK21 hr
Apr 15, 3:57 AM EDTFlash Flood WatchRNK20 hr
Apr 15, 2:34 PM EDTSpecial Weather StatementRNK56 min
Apr 15, 2:41 PM EDTSevere Thunderstorm WarningRNK64 min
Apr 18, 2:59 PM EDTWind AdvisoryRNK26 hr
May 5, 3:13 PM EDTSpecial Weather StatementRNK32 min
May 5, 3:27 PM EDTMesoscale DiscussionSPC93 min
May 5, 7:15 PM EDTSpecial Weather StatementRNK30 min
May 5, 7:50 PM EDTSpecial Weather StatementRNK25 min
May 15, 2:28 PM EDTSpecial Weather StatementRNK32 min
May 15, 3:40 PM EDTSpecial Weather StatementRNK50 min
May 17, 4:13 AM EDTFlash Flood WatchRNK68 hr
May 19, 5:54 PM EDTSpecial Weather StatementRNK66 min
May 19, 8:53 PM EDTAreal Flood AdvisoryRNK6 hr
May 26, 11:14 AM EDTFlash Flood WarningRNK5 hr
May 27, 8:52 PM EDTSpecial Weather StatementRNK53 min
May 28, 3:13 PM EDTFlash Flood WatchRNK3 days
May 31, 5:51 PM EDTSpecial Weather StatementRNK24 min
Jun 8, 9:19 PM EDTSpecial Weather StatementRNK56 min
Jun 20, 3:23 PM EDTMesoscale DiscussionSPC2 hr
Jun 20, 5:52 PM EDTSpecial Weather StatementRNK23 min
Jun 22, 12:24 PM EDTSpecial Weather StatementRNK21 min
Jun 25, 5:05 PM EDTSpecial Weather StatementRNK25 min
Jun 26, 1:45 PM EDTSpecial Weather StatementRNK60 min
Jun 26, 7:42 PM EDTSpecial Weather StatementRNK63 min
Jul 2, 5:05 PM EDTSpecial Weather StatementRNK55 min
Jul 2, 5:25 PM EDTSevere Thunderstorm WarningRNK65 min
Jul 24, 7:22 PM EDTAreal Flood AdvisoryRNK2 hr
Jul 31, 5:29 PM EDTSpecial Weather StatementRNK61 min
Jul 31, 6:23 PM EDTAreal Flood AdvisoryRNK112 min
Aug 1, 3:44 AM EDTFlash Flood WatchRNK64 hr
Aug 2, 4:28 AM EDTAreal Flood AdvisoryRNK3 hr
Aug 2, 7:45 PM EDTAreal Flood AdvisoryRNK2 hr
Aug 2, 10:01 PM EDTAreal Flood WarningRNK3 hr
Aug 3, 2:42 PM EDTAreal Flood WarningRNK3 hr
Aug 4, 3:43 AM EDTDense Fog AdvisoryRNK5 hr
Aug 6, 7:42 PM EDTSpecial Weather StatementRNK48 min
Aug 7, 1:35 PM EDTSpecial Weather StatementRNK55 min
Aug 8, 1:53 PM EDTSevere Thunderstorm WarningRNK67 min
Aug 21, 5:55 PM EDTSpecial Weather StatementRNK65 min
Aug 27, 8:14 PM EDTSpecial Weather StatementRNK46 min
Aug 27, 8:49 PM EDTAreal Flood AdvisoryRNK116 min
Aug 30, 1:34 PM EDTMesoscale DiscussionSPC86 min
Aug 30, 3:06 PM EDTSpecial Weather StatementRNK24 min
Aug 30, 5:54 PM EDTAreal Flood AdvisoryRNK2 hr
Sep 10, 1:25 PM EDTFlash Flood WatchRNK8 hr
Sep 10, 6:46 PM EDTAreal Flood AdvisoryRNK6 hr
Sep 11, 1:01 PM EDTFlash Flood WatchRNK8 hr
Sep 14, 4:28 AM EDTFlash Flood WatchRNK4 days
Sep 15, 5:47 AM EDTWind AdvisoryRNK46 hr
Sep 22, 1:36 PM EDTFlash Flood WatchRNK14 hr
Sep 22, 5:57 PM EDTSpecial Weather StatementRNK33 min
Sep 23, 5:22 PM EDTSpecial Weather StatementRNK53 min
Sep 23, 6:31 PM EDTSpecial Weather StatementRNK44 min
Sep 23, 7:47 PM EDTAreal Flood AdvisoryRNK93 min
Sep 27, 3:11 AM EDTFlash Flood WatchRNK21 hr
Sep 27, 9:01 PM EDTAreal Flood AdvisoryRNK4 hr
Oct 6, 2:56 AM EDTDense Fog AdvisoryRNK7 hr
Oct 7, 2:32 AM EDTDense Fog AdvisoryRNK7 hr
Oct 10, 6:11 PM EDTAreal Flood AdvisoryRNK6 hr
Oct 10, 6:29 PM EDTFlash Flood WarningRNK6 hr
Oct 11, 12:30 AM EDTAreal Flood WarningRNK9 hr
Oct 11, 4:43 AM EDTWind AdvisoryRNK30 hr
Oct 11, 9:22 AM EDTFlash Flood WarningRNK6 hr
Oct 11, 3:10 PM EDTAreal Flood WarningRNK6 hr
Oct 17, 3:26 AM EDTFrost AdvisoryRNK30 hr
Oct 18, 3:50 PM EDTFrost AdvisoryRNK17 hr
Oct 19, 3:49 PM EDTFreeze WatchRNK12 hr
Oct 20, 3:31 AM EDTFreeze WarningRNK30 hr
Oct 20, 3:31 AM EDTWind AdvisoryRNK32 hr
Oct 20, 10:51 PM EDTSpecial Weather StatementRNK54 min
Oct 21, 4:02 AM EDTFreeze WarningRNK30 hr
Oct 28, 10:39 AM EDTWind AdvisoryRNK25 hr
Nov 6, 7:18 AM ESTSpecial Weather StatementRNK27 min
Nov 9, 1:27 PM ESTWind AdvisoryRNK24 hr
Nov 13, 3:35 PM ESTWinter Storm WatchRNK24 hr
Nov 14, 5:15 AM ESTWinter Storm WarningRNK38 hr
Nov 15, 3:18 AM ESTMesoscale DiscussionSPC6 hr
Nov 15, 7:14 PM ESTWind AdvisoryRNK17 hr
Nov 23, 4:04 AM ESTWinter Weather AdvisoryRNK31 hr
Nov 25, 2:46 PM ESTWind AdvisoryRNK37 hr
Nov 27, 2:39 PM ESTWind AdvisoryRNK21 hr
Dec 4, 2:35 PM ESTWinter Weather AdvisoryRNK28 hr
Dec 6, 3:31 PM ESTWinter Storm WatchRNK47 hr
Dec 7, 3:27 AM ESTWinter Storm WarningRNK3 days
Dec 9, 8:18 AM ESTMesoscale DiscussionSPC5 hr
Dec 9, 12:34 PM ESTMesoscale DiscussionSPC5 hr
Dec 21, 4:03 AM ESTWind AdvisoryRNK26 hr
Dec 21, 10:28 AM ESTAreal Flood AdvisoryRNK6 hr
Dec 21, 7:06 PM ESTAreal Flood WarningRNK12 hr
Dec 26, 3:00 PM ESTFlood WatchRNK52 hr
Dec 28, 8:59 AM ESTAreal Flood AdvisoryRNK6 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 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.