Alert archive / Kentucky / Letcher County

Weather alerts in Letcher County, Kentucky, 2010

134 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Letcher County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts
134
Warnings
34
Watches
23
Advisories
59
Busiest month
May25 alerts
Busiest day
August 5, 20105 alerts

Over time

By month

Warning verification

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

Letcher County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings13654%5100%20 min
Flash flood warnings4325%1100%72 min

Each office's whole area, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Jackson, KY: tornado warnings170100%20%
NWS Jackson, KY: severe thunderstorm warnings1599242%23561%18 min
NWS Jackson, KY: flash flood warnings723256%11971%157 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 4, 2:48 PM ESTWinter Weather AdvisoryJKL38 hr
Jan 6, 3:14 PM ESTWinter Weather AdvisoryJKL61 hr
Jan 12, 12:06 AM ESTWinter Weather AdvisoryJKL14 hr
Jan 23, 3:50 PM ESTLake Wind AdvisoryJKL24 hr
Jan 24, 5:05 PM ESTAreal Flood AdvisoryJKL4 hr
Jan 24, 6:07 PM ESTAreal Flood WarningJKL3 hr
Jan 24, 9:00 PM ESTAreal Flood AdvisoryJKL3 hr
Jan 27, 3:46 PM ESTWinter Storm WatchJKL36 hr
Jan 28, 4:01 AM ESTWinter Storm WarningJKL65 hr
Feb 1, 3:46 PM ESTWinter Weather AdvisoryJKL19 hr
Feb 5, 12:52 PM ESTWinter Weather AdvisoryJKL23 hr
Feb 5, 8:28 PM ESTAreal Flood AdvisoryJKL14 hr
Feb 8, 12:27 PM ESTWinter Storm WarningJKL63 hr
Feb 8, 12:27 PM ESTWinter Weather AdvisoryJKL58 hr
Feb 13, 3:32 PM ESTWinter Storm WatchJKL20 hr
Feb 14, 12:00 PM ESTWinter Weather AdvisoryJKL72 hr
Feb 24, 2:38 PM ESTWinter Weather AdvisoryJKL25 hr
Feb 24, 9:50 PM ESTWinter Storm WarningJKL18 hr
Feb 25, 3:43 PM ESTWinter Weather AdvisoryJKL12 hr
Feb 26, 4:21 PM ESTWinter Weather AdvisoryJKL17 hr
Mar 2, 10:04 AM ESTWinter Weather AdvisoryJKL5 hr
Apr 3, 12:18 PM EDTRed Flag WarningJKL4 hr
Apr 3, 1:22 PM EDTLake Wind AdvisoryJKL5 hr
Apr 5, 6:10 AM EDTFire Weather WatchJKL22 hr
Apr 6, 3:43 AM EDTRed Flag WarningJKL17 hr
Apr 6, 6:26 PM EDTFire Weather WatchJKL8 hr
Apr 7, 2:49 AM EDTRed Flag WarningJKL15 hr
Apr 8, 10:16 AM EDTSevere Thunderstorm WarningJKL29 min
Apr 8, 4:28 PM EDTFreeze WatchJKL23 hr
Apr 9, 3:14 PM EDTFreeze WarningJKL18 hr
Apr 16, 3:35 PM EDTRed Flag WarningJKL4 hr
Apr 17, 3:35 AM EDTFrost AdvisoryJKL29 hr
Apr 18, 2:10 PM EDTFrost AdvisoryJKL19 hr
Apr 24, 7:15 PM EDTTornado WatchSPC8 hr
Apr 25, 12:05 AM EDTMesoscale DiscussionSPC55 min
Apr 25, 2:16 AM EDTAreal Flood AdvisoryJKL3 hr
Apr 25, 10:04 AM EDTLake Wind AdvisoryJKL8 hr
Apr 27, 4:20 AM EDTFrost AdvisoryJKL30 hr
Apr 28, 10:03 PM EDTFrost AdvisoryJKL11 hr
Apr 30, 4:25 PM EDTFlash Flood WatchJKL60 hr
May 2, 2:18 PM EDTMesoscale DiscussionSPC57 min
May 2, 3:32 PM EDTSevere Thunderstorm WatchSPC5 hr
May 2, 7:12 PM EDTMesoscale DiscussionSPC93 min
May 3, 1:28 AM EDTAreal Flood AdvisoryJKL6 hr
May 3, 3:18 AM EDTFlash Flood WarningJKL5 hr
May 3, 5:25 AM EDTAreal Flood WarningJKL6 hr
May 8, 2:36 AM EDTMesoscale DiscussionSPC54 min
May 8, 9:50 AM EDTLake Wind AdvisoryJKL9 hr
May 9, 2:52 PM EDTFrost AdvisoryJKL18 hr
May 11, 12:27 PM EDTLake Wind AdvisoryJKL6 hr
May 14, 12:34 PM EDTSevere Thunderstorm WatchSPC7 hr
May 15, 6:47 PM EDTMesoscale DiscussionSPC58 min
May 15, 8:15 PM EDTSevere Thunderstorm WarningJKL28 min
May 15, 9:07 PM EDTAreal Flood AdvisoryJKL6 hr
May 15, 9:50 PM EDTFlash Flood WarningJKL4 hr
May 16, 3:38 AM EDTFlash Flood WatchJKL43 hr
May 17, 12:48 PM EDTMesoscale DiscussionSPC57 min
May 17, 3:00 PM EDTSevere Thunderstorm WatchSPC6 hr
May 17, 6:56 PM EDTMesoscale DiscussionSPC2 hr
May 17, 10:14 PM EDTSevere Thunderstorm WarningJKL31 min
May 17, 11:31 PM EDTSevere Thunderstorm WarningJKL29 min
May 20, 4:38 AM EDTDense Fog AdvisoryJKL4 hr
May 28, 1:52 PM EDTSevere Thunderstorm WatchSPC7 hr
May 28, 2:17 PM EDTAreal Flood AdvisoryJKL3 hr
May 28, 4:22 PM EDTMesoscale DiscussionSPC53 min
Jun 4, 3:36 PM EDTSevere Thunderstorm WarningJKL32 min
Jun 4, 4:00 PM EDTSevere Thunderstorm WarningJKL45 min
Jun 9, 9:27 AM EDTFlash Flood WatchJKL12 hr
Jun 11, 1:38 PM EDTMesoscale DiscussionSPC2 hr
Jun 12, 6:58 PM EDTAreal Flood AdvisoryJKL3 hr
Jun 14, 12:28 PM EDTSevere Thunderstorm WarningJKL47 min
Jun 14, 12:47 PM EDTMesoscale DiscussionSPC88 min
Jun 15, 1:11 PM EDTMesoscale DiscussionSPC2 hr
Jun 15, 8:54 PM EDTFlash Flood WatchJKL9 hr
Jun 21, 4:26 PM EDTSevere Thunderstorm WarningJKL34 min
Jun 21, 5:00 PM EDTSevere Thunderstorm WarningJKL45 min
Jun 22, 4:25 AM EDTHeat AdvisoryJKL16 hr
Jun 22, 4:25 AM EDTHeat AdvisoryJKL40 hr
Jun 24, 2:34 PM EDTMesoscale DiscussionSPC116 min
Jun 27, 4:39 PM EDTSevere Thunderstorm WarningJKL25 min
Jun 28, 1:29 PM EDTMesoscale DiscussionSPC61 min
Jul 6, 4:01 AM EDTHeat AdvisoryJKL16 hr
Jul 6, 4:01 AM EDTHeat AdvisoryJKL40 hr
Jul 7, 3:45 AM EDTHeat AdvisoryJKL40 hr
Jul 22, 3:34 PM EDTHeat AdvisoryJKL52 hr
Aug 2, 2:55 PM EDTHeat AdvisoryJKL3 days
Aug 5, 8:51 AM EDTMesoscale DiscussionSPC114 min
Aug 5, 10:38 AM EDTSevere Thunderstorm WatchSPC7 hr
Aug 5, 3:53 PM EDTSevere Thunderstorm WarningJKL37 min
Aug 5, 3:56 PM EDTMesoscale DiscussionSPC64 min
Aug 5, 4:11 PM EDTSevere Thunderstorm WarningJKL19 min
Aug 9, 3:32 PM EDTHeat AdvisoryJKL28 hr
Aug 10, 9:53 PM EDTHeat AdvisoryJKL18 hr
Aug 11, 4:01 PM EDTExcessive Heat WarningJKL4 days
Aug 18, 9:14 AM EDTFlash Flood WatchJKL23 hr
Aug 20, 12:30 AM EDTDense Fog AdvisoryJKL9 hr
Aug 31, 6:00 AM EDTDense Fog AdvisoryJKL3 hr
Oct 5, 3:50 AM EDTFrost AdvisoryJKL29 hr
Oct 15, 3:34 PM EDTFrost AdvisoryJKL17 hr
Oct 16, 3:00 PM EDTFrost AdvisoryJKL18 hr
Oct 21, 2:20 AM EDTRed Flag WarningJKL18 hr
Oct 21, 3:47 PM EDTFrost AdvisoryJKL18 hr
Oct 22, 7:45 PM EDTFrost AdvisoryJKL13 hr
Oct 23, 4:23 PM EDTFire Weather WatchJKL12 hr
Oct 25, 3:05 PM EDTWind AdvisoryJKL29 hr
Oct 26, 1:09 PM EDTMesoscale DiscussionSPC66 min
Oct 26, 1:36 PM EDTTornado WatchSPC7 hr
Oct 26, 5:45 PM EDTMesoscale DiscussionSPC90 min
Oct 28, 3:32 PM EDTFreeze WarningJKL12 hr
Oct 29, 3:40 AM EDTFreeze WarningJKL30 hr
Oct 29, 3:01 PM EDTFire Weather WatchJKL14 hr
Nov 14, 10:22 PM ESTDense Fog AdvisoryJKL11 hr
Nov 16, 4:35 PM ESTLake Wind AdvisoryJKL8 hr
Nov 16, 6:22 PM ESTSevere Thunderstorm WarningJKL38 min
Nov 24, 1:10 AM ESTDense Fog AdvisoryJKL8 hr
Nov 25, 4:02 AM ESTLake Wind AdvisoryJKL19 hr
Nov 29, 4:52 AM ESTWind AdvisoryJKL29 hr
Nov 29, 3:37 PM ESTFlood WatchJKL41 hr
Nov 30, 11:37 AM ESTAreal Flood AdvisoryJKL6 hr
Nov 30, 1:43 PM ESTFlash Flood WarningJKL5 hr
Nov 30, 4:13 PM ESTAreal Flood AdvisoryJKL6 hr
Nov 30, 6:42 PM ESTFlash Flood WarningJKL4 hr
Dec 3, 4:12 PM ESTWinter Weather AdvisoryJKL36 hr
Dec 6, 10:41 AM ESTWinter Weather AdvisoryJKL20 hr
Dec 10, 3:50 PM ESTWinter Storm WatchJKL31 hr
Dec 11, 4:47 PM ESTWinter Storm WarningJKL50 hr
Dec 14, 4:20 AM ESTWinter Storm WatchJKL12 hr
Dec 14, 4:35 PM ESTWinter Storm WarningJKL47 hr
Dec 16, 4:17 AM ESTMesoscale DiscussionSPC6 hr
Dec 17, 4:55 AM ESTFreezing Rain AdvisoryJKL5 hr
Dec 21, 12:51 AM ESTWinter Weather AdvisoryJKL9 hr
Dec 24, 2:00 AM ESTWinter Weather AdvisoryJKL30 hr
Dec 24, 3:25 PM ESTWinter Storm WatchJKL25 hr
Dec 25, 3:55 PM ESTWinter Storm WarningJKL44 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 archive20092011

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.