Alert archive / West Virginia / Preston County

Weather alerts in Preston County, West Virginia, 2011

119 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Preston County and its neighbors

Each county as a circle sized by its count in 2011. Tap one for its archive.

Alerts
119
Warnings
20
Watches
13
Advisories
2
Busiest month
April29 alerts
Busiest day
March 23, 20115 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Preston County, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings141029%5100%21 min
Flash flood warnings2150%3100%77 min

Each office's whole area, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Pittsburgh, PA: tornado warnings9189%1100%8 min
NWS Pittsburgh, PA: severe thunderstorm warnings23116130%42883%22 min
NWS Pittsburgh, PA: flash flood warnings211148%2391%81 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 26, 11:19 AM ESTMesoscale DiscussionSPC4 hr
Feb 21, 6:33 PM ESTMesoscale DiscussionSPC5 hr
Feb 28, 5:47 AM ESTTornado WatchSPC5 hr
Feb 28, 8:16 AM ESTSpecial Weather StatementPBZ59 min
Mar 21, 4:25 AM EDTSpecial Weather StatementPBZ35 min
Mar 21, 5:00 AM EDTSpecial Weather StatementPBZ60 min
Mar 21, 4:34 PM EDTSpecial Weather StatementPBZ41 min
Mar 23, 1:13 PM EDTTornado WatchSPC7 hr
Mar 23, 3:36 PM EDTSpecial Weather StatementPBZ54 min
Mar 23, 3:47 PM EDTSevere Thunderstorm WarningPBZ58 min
Mar 23, 3:54 PM EDTMesoscale DiscussionSPC96 min
Mar 23, 6:02 PM EDTSevere Thunderstorm WarningPBZ45 min
Apr 3, 6:47 PM EDTSpecial Weather StatementPBZ43 min
Apr 4, 6:00 PM EDTMesoscale DiscussionSPC90 min
Apr 4, 8:00 PM EDTSpecial Weather StatementPBZ60 min
Apr 11, 12:24 PM EDTMesoscale DiscussionSPC36 min
Apr 11, 12:47 PM EDTTornado WatchSPC6 hr
Apr 11, 3:44 PM EDTMesoscale DiscussionSPC61 min
Apr 16, 10:43 AM EDTMesoscale DiscussionSPC62 min
Apr 16, 1:25 PM EDTSpecial Weather StatementPBZ50 min
Apr 19, 9:29 AM EDTSpecial Weather StatementPBZ61 min
Apr 19, 10:49 AM EDTAreal Flood WarningPBZ9 hr
Apr 19, 3:21 PM EDTMesoscale DiscussionSPC54 min
Apr 19, 5:18 PM EDTSpecial Weather StatementPBZ57 min
Apr 20, 2:22 AM EDTSevere Thunderstorm WatchSPC3 hr
Apr 20, 3:20 AM EDTMesoscale DiscussionSPC85 min
Apr 20, 4:57 AM EDTSpecial Weather StatementPBZ63 min
Apr 23, 1:40 AM EDTSpecial Weather StatementPBZ65 min
Apr 23, 7:23 PM EDTSpecial Weather StatementPBZ52 min
Apr 23, 8:16 PM EDTMesoscale DiscussionSPC59 min
Apr 26, 1:18 PM EDTMesoscale DiscussionSPC57 min
Apr 26, 1:49 PM EDTMesoscale DiscussionSPC56 min
Apr 26, 1:49 PM EDTSevere Thunderstorm WatchSPC7 hr
Apr 26, 4:34 PM EDTMesoscale DiscussionSPC56 min
Apr 26, 7:44 PM EDTMesoscale DiscussionSPC61 min
Apr 27, 1:24 PM EDTMesoscale DiscussionSPC96 min
Apr 27, 3:10 PM EDTTornado WatchSPC7 hr
Apr 27, 3:18 PM EDTSpecial Weather StatementPBZ57 min
Apr 27, 4:06 PM EDTSpecial Weather StatementPBZ54 min
Apr 27, 11:31 PM EDTSpecial Weather StatementPBZ59 min
Apr 27, 11:47 PM EDTSevere Thunderstorm WarningPBZ58 min
May 12, 10:40 PM EDTSpecial Weather StatementPBZ65 min
May 13, 12:03 PM EDTSpecial Weather StatementPBZ57 min
May 13, 2:15 PM EDTFlash Flood WarningPBZ2 hr
May 13, 4:56 PM EDTSpecial Weather StatementPBZ64 min
May 17, 2:46 PM EDTAreal Flood AdvisoryPBZ6 hr
May 18, 11:55 AM EDTMesoscale DiscussionSPC65 min
May 18, 12:55 PM EDTSevere Thunderstorm WatchSPC8 hr
May 18, 3:08 PM EDTMesoscale DiscussionSPC67 min
May 18, 6:01 PM EDTMesoscale DiscussionSPC89 min
May 23, 10:33 AM EDTMesoscale DiscussionSPC87 min
May 26, 1:15 PM EDTMesoscale DiscussionSPC90 min
May 26, 1:42 PM EDTSevere Thunderstorm WatchSPC11 hr
May 26, 4:21 PM EDTSevere Thunderstorm WarningPBZ39 min
May 26, 4:30 PM EDTMesoscale DiscussionSPC60 min
May 26, 8:50 PM EDTSevere Thunderstorm WarningPBZ25 min
May 26, 10:41 PM EDTSpecial Weather StatementPBZ64 min
Jun 9, 12:53 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 9, 6:17 PM EDTMesoscale DiscussionSPC58 min
Jun 9, 9:10 PM EDTSpecial Weather StatementPBZ65 min
Jun 9, 10:26 PM EDTSpecial Weather StatementPBZ64 min
Jun 16, 6:01 PM EDTMesoscale DiscussionSPC89 min
Jun 19, 12:32 AM EDTAreal Flood AdvisoryPBZ3 hr
Jun 21, 3:04 PM EDTSpecial Weather StatementPBZ56 min
Jun 21, 9:53 PM EDTSpecial Weather StatementPBZ67 min
Jul 3, 2:42 AM EDTSpecial Weather StatementPBZ63 min
Jul 3, 3:22 PM EDTMesoscale DiscussionSPC53 min
Jul 3, 4:03 PM EDTSevere Thunderstorm WarningPBZ27 min
Jul 4, 1:54 PM EDTMesoscale DiscussionSPC96 min
Jul 4, 3:47 PM EDTSpecial Weather StatementPBZ58 min
Jul 4, 4:52 PM EDTAreal Flood WarningPBZ71 min
Jul 7, 3:39 PM EDTSpecial Weather StatementPBZ21 min
Jul 7, 4:22 PM EDTSpecial Weather StatementPBZ23 min
Jul 8, 11:56 AM EDTSpecial Weather StatementPBZ34 min
Jul 8, 12:32 PM EDTSpecial Weather StatementPBZ58 min
Jul 8, 1:36 PM EDTSpecial Weather StatementPBZ54 min
Jul 11, 2:16 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 11, 5:12 PM EDTSevere Thunderstorm WarningPBZ48 min
Jul 11, 5:49 PM EDTSpecial Weather StatementPBZ26 min
Jul 13, 12:08 PM EDTSpecial Weather StatementPBZ37 min
Jul 18, 3:57 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 21, 8:42 AM EDTSpecial Weather StatementPBZ48 min
Jul 21, 8:53 AM EDTSpecial Weather StatementPBZ37 min
Jul 22, 3:17 PM EDTMesoscale DiscussionSPC58 min
Jul 22, 5:19 PM EDTMesoscale DiscussionSPC56 min
Jul 22, 5:37 PM EDTSevere Thunderstorm WatchSPC4 hr
Jul 22, 8:13 PM EDTMesoscale DiscussionSPC62 min
Jul 22, 8:19 PM EDTSevere Thunderstorm WarningPBZ56 min
Jul 29, 5:54 PM EDTSevere Thunderstorm WarningPBZ51 min
Jul 29, 6:17 PM EDTMesoscale DiscussionSPC88 min
Jul 30, 12:47 AM EDTSpecial Weather StatementPBZ58 min
Aug 1, 6:20 PM EDTSpecial Weather StatementPBZ25 min
Aug 1, 7:12 PM EDTSpecial Weather StatementPBZ33 min
Aug 7, 1:00 AM EDTSpecial Weather StatementPBZ60 min
Aug 7, 2:49 AM EDTFlash Flood WarningPBZ4 hr
Aug 7, 5:49 PM EDTSevere Thunderstorm WatchSPC4 hr
Aug 7, 7:36 PM EDTMesoscale DiscussionSPC84 min
Aug 14, 7:00 PM EDTSpecial Weather StatementPBZ60 min
Aug 19, 6:09 PM EDTSpecial Weather StatementPBZ36 min
Sep 1, 11:27 AM EDTSpecial Weather StatementPBZ63 min
Sep 4, 3:15 PM EDTMesoscale DiscussionSPC60 min
Sep 4, 5:06 PM EDTSpecial Weather StatementPBZ54 min
Sep 4, 8:52 PM EDTSpecial Weather StatementPBZ53 min
Sep 6, 5:35 PM EDTAreal Flood WarningPBZ12 hr
Sep 11, 6:38 PM EDTMesoscale DiscussionSPC97 min
Sep 14, 2:50 PM EDTSpecial Weather StatementPBZ25 min
Sep 14, 2:53 PM EDTSevere Thunderstorm WarningPBZ52 min
Sep 14, 3:18 PM EDTSevere Thunderstorm WarningPBZ42 min
Sep 14, 3:22 PM EDTMesoscale DiscussionSPC53 min
Sep 14, 3:50 PM EDTSpecial Weather StatementPBZ40 min
Sep 15, 1:30 AM EDTSevere Thunderstorm WarningPBZ45 min
Sep 15, 2:09 AM EDTSevere Thunderstorm WarningPBZ36 min
Sep 15, 2:12 AM EDTSevere Thunderstorm WarningPBZ48 min
Oct 29, 12:34 AM EDTMesoscale DiscussionSPC6 hr
Nov 14, 11:10 PM ESTSpecial Weather StatementPBZ2 hr
Nov 22, 10:18 PM ESTSpecial Weather StatementPBZ117 min
Nov 23, 3:09 AM ESTAreal Flood WarningPBZ6 hr
Dec 7, 2:44 PM ESTMesoscale DiscussionSPC3 hr
Dec 15, 6:19 PM ESTSpecial Weather StatementPBZ86 min

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 archive20102012

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.