Alert archive / West Virginia / McDowell County

Weather alerts in McDowell County, West Virginia, 2009

97 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

McDowell County and its neighbors

Each county as a circle sized by its count in 2009. Tap one for its archive.

Alerts
97
Warnings
22
Watches
31
Advisories
19
Busiest month
May27 alerts
Busiest day
May 9, 20099 alerts

Over time

By month

Warning verification

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

0 of 1 tornado warnings covering McDowell County in 2009 had a tornado report inside them.

McDowell County, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings9367%667%33 min
Flash flood warnings3167%0

Each office's whole area, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Charleston, WV: tornado warnings7186%1100%9 min
NWS Charleston, WV: severe thunderstorm warnings1606758%20977%24 min
NWS Charleston, WV: flash flood warnings301067%2492%77 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 6, 4:21 AM ESTFlood WatchRLX32 hr
Jan 7, 1:47 AM ESTAreal Flood AdvisoryRLX10 hr
Jan 7, 2:38 PM ESTWinter Weather AdvisoryRLX29 hr
Jan 15, 5:22 AM ESTWind Chill AdvisoryRLX31 hr
Jan 17, 11:36 PM ESTFreezing Rain AdvisoryRLX11 hr
Jan 18, 11:18 AM ESTWinter Weather AdvisoryRLX26 hr
Jan 27, 4:14 AM ESTFlood WatchRLX36 hr
Jan 27, 4:32 AM ESTFreezing Rain AdvisoryRLX5 hr
Jan 27, 7:06 AM ESTMesoscale DiscussionSPC5 hr
Feb 2, 3:03 PM ESTWinter Storm WarningRLX61 hr
Feb 3, 3:15 AM ESTWinter Weather AdvisoryRLX25 hr
Feb 10, 3:47 AM ESTHigh Wind WatchRLX25 hr
Feb 11, 4:17 AM ESTHigh Wind WarningRLX41 hr
Feb 11, 1:59 PM ESTTornado WatchSPC7 hr
Feb 11, 4:34 PM ESTMesoscale DiscussionSPC86 min
Feb 11, 5:32 PM ESTMesoscale DiscussionSPC88 min
Feb 11, 5:42 PM ESTSevere Thunderstorm WarningRLX63 min
Feb 12, 4:36 AM ESTWind AdvisoryRLX12 hr
Feb 18, 3:40 PM ESTMesoscale DiscussionSPC95 min
Feb 22, 9:14 AM ESTWinter Weather AdvisoryRLX10 hr
Feb 28, 3:41 AM ESTWinter Weather AdvisoryRLX30 hr
Mar 12, 2:59 PM EDTWinter Weather AdvisoryRLX18 hr
Mar 12, 10:39 PM EDTMesoscale DiscussionSPC3 hr
Apr 5, 7:29 PM EDTWind AdvisoryRLX9 hr
Apr 5, 8:53 PM EDTSevere Thunderstorm WatchSPC5 hr
Apr 10, 4:42 PM EDTMesoscale DiscussionSPC63 min
May 3, 2:56 PM EDTFlood WatchRLX25 hr
May 5, 4:58 PM EDTFlood WatchRLX37 hr
May 8, 3:57 AM EDTFlood WatchRLX38 hr
May 8, 6:03 PM EDTMesoscale DiscussionSPC87 min
May 8, 6:32 PM EDTTornado WatchSPC7 hr
May 8, 8:30 PM EDTMesoscale DiscussionSPC90 min
May 8, 9:02 PM EDTSevere Thunderstorm WarningRLX28 min
May 8, 9:17 PM EDTAreal Flood AdvisoryRLX4 hr
May 8, 9:35 PM EDTTornado WarningRLX10 min
May 8, 11:37 PM EDTMesoscale DiscussionSPC53 min
May 9, 1:24 AM EDTAreal Flood AdvisoryRLX3 hr
May 9, 4:04 AM EDTAreal Flood WarningRLX7 hr
May 9, 9:43 AM EDTAreal Flood WarningRLX4 hr
May 9, 10:58 AM EDTAreal Flood WarningRLX5 hr
May 18, 4:22 AM EDTFrost AdvisoryRLX28 hr
May 27, 1:45 PM EDTFlash Flood WatchRLX38 hr
May 28, 2:21 PM EDTSevere Thunderstorm WatchSPC8 hr
May 28, 4:54 PM EDTMesoscale DiscussionSPC66 min
May 28, 7:34 PM EDTMesoscale DiscussionSPC56 min
May 29, 12:22 AM EDTSevere Thunderstorm WarningRLX53 min
May 30, 4:49 PM EDTSevere Thunderstorm WatchSPC11 hr
May 30, 7:01 PM EDTMesoscale DiscussionSPC59 min
May 30, 9:53 PM EDTMesoscale DiscussionSPC67 min
May 30, 11:37 PM EDTMesoscale DiscussionSPC23 min
May 31, 2:02 AM EDTSevere Thunderstorm WarningRLX43 min
May 31, 2:16 AM EDTSevere Thunderstorm WarningRLX59 min
May 31, 2:54 AM EDTMesoscale DiscussionSPC2 hr
Jun 2, 3:18 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 2, 9:08 PM EDTSevere Thunderstorm WarningRLX37 min
Jun 3, 11:52 AM EDTFlash Flood WatchRLX46 hr
Jun 3, 1:06 PM EDTSevere Thunderstorm WatchSPC9 hr
Jun 3, 3:17 PM EDTSevere Thunderstorm WarningRLX43 min
Jun 3, 4:34 PM EDTMesoscale DiscussionSPC86 min
Jun 3, 7:10 PM EDTMesoscale DiscussionSPC95 min
Jun 8, 3:24 PM EDTMesoscale DiscussionSPC96 min
Jun 10, 2:41 PM EDTFlash Flood WatchRLX4 hr
Jun 11, 10:57 AM EDTFlash Flood WatchRLX20 hr
Jun 11, 5:24 PM EDTFlash Flood WarningRLX114 min
Jun 14, 6:30 PM EDTSevere Thunderstorm WatchSPC3 hr
Jun 16, 3:29 PM EDTFlash Flood WatchRLX29 hr
Jun 16, 8:02 PM EDTMesoscale DiscussionSPC58 min
Jun 28, 4:04 PM EDTMesoscale DiscussionSPC56 min
Jul 9, 4:02 PM EDTSevere Thunderstorm WarningRLX28 min
Jul 9, 6:19 PM EDTFlash Flood WarningRLX86 min
Jul 20, 6:20 PM EDTMesoscale DiscussionSPC85 min
Jul 26, 1:35 AM EDTFlash Flood WatchRLX5 hr
Jul 26, 10:22 AM EDTFlash Flood WatchRLX6 hr
Jul 28, 2:52 PM EDTFlood WatchRLX20 hr
Jul 30, 2:45 PM EDTFlash Flood WatchRLX22 hr
Aug 1, 2:46 PM EDTFlash Flood WatchRLX21 hr
Aug 4, 1:58 PM EDTFlash Flood WatchRLX22 hr
Aug 5, 2:41 PM EDTSevere Thunderstorm WarningRLX51 min
Aug 11, 1:03 PM EDTMesoscale DiscussionSPC87 min
Aug 12, 1:35 PM EDTFlash Flood WatchRLX8 hr
Aug 19, 12:16 PM EDTFlash Flood WatchRLX8 hr
Aug 19, 2:49 PM EDTFlash Flood WarningRLX3 hr
Sep 25, 3:18 PM EDTFlash Flood WatchRLX30 hr
Oct 9, 5:52 PM EDTMesoscale DiscussionSPC83 min
Oct 17, 2:44 PM EDTFreeze WatchRLX19 hr
Oct 18, 9:57 AM EDTFreeze WarningRLX24 hr
Dec 1, 2:58 PM ESTWind AdvisoryRLX37 hr
Dec 4, 2:55 PM ESTWinter Weather AdvisoryRLX26 hr
Dec 8, 5:20 AM ESTWind AdvisoryRLX5 hr
Dec 8, 10:14 AM ESTHigh Wind WarningRLX36 hr
Dec 17, 3:52 PM ESTWinter Storm WatchRLX13 hr
Dec 18, 4:30 AM ESTWinter Storm WarningRLX47 hr
Dec 18, 7:22 PM ESTMesoscale DiscussionSPC5 hr
Dec 19, 12:34 AM ESTMesoscale DiscussionSPC5 hr
Dec 23, 3:38 PM ESTHigh Wind WatchRLX13 hr
Dec 24, 4:20 AM ESTWind AdvisoryRLX21 hr
Dec 25, 1:23 AM ESTHigh Wind WarningRLX15 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 archive20082010

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.