Alert archive / Kentucky / Clay County

Weather alerts in Clay County, Kentucky, 2020

121 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Clay County and its neighbors

Each county as a circle sized by its count in 2020. Tap one for its archive.

Alerts
121
Warnings
28
Watches
16
Advisories
46
Busiest month
May32 alerts
Busiest day
May 19, 20207 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 Clay County in 2020 had a tornado report inside them.

Clay County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings11827%1100%2 min
Flash flood warnings110%3100%2 min

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Jackson, KY: tornado warnings50100%10%
NWS Jackson, KY: severe thunderstorm warnings915144%15572%17 min
NWS Jackson, KY: flash flood warnings371949%5474%47 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, 11:50 AM ESTWinter Weather AdvisoryJKL23 hr
Jan 10, 3:36 PM ESTWind AdvisoryJKL29 hr
Jan 11, 12:35 PM ESTMesoscale DiscussionSPC85 min
Jan 11, 8:38 PM ESTHigh Wind WarningJKL4 hr
Feb 4, 4:07 PM ESTFlood WatchJKL45 hr
Feb 5, 8:38 PM ESTAreal Flood AdvisoryJKL3 hr
Feb 5, 10:53 PM ESTAreal Flood AdvisoryJKL3 hr
Feb 6, 7:24 AM ESTAreal Flood WarningJKL6 hr
Feb 6, 10:41 AM ESTRiver Flood WarningJKL12 hr
Feb 6, 1:11 PM ESTAreal Flood WarningJKL6 hr
Feb 6, 3:14 PM ESTWinter Weather AdvisoryJKL22 hr
Feb 6, 10:30 PM ESTRiver Flood AdvisoryJKL20 hr
Feb 11, 5:40 AM ESTAreal Flood AdvisoryJKL3 hr
Feb 11, 11:37 AM ESTFlash Flood WatchJKL43 hr
Feb 12, 9:03 PM ESTSpecial Weather StatementJKL42 min
Feb 13, 1:01 AM ESTAreal Flood AdvisoryJKL6 hr
Feb 13, 8:05 AM ESTRiver Flood AdvisoryJKL16 hr
Feb 27, 3:39 PM ESTWinter Weather AdvisoryJKL39 hr
Mar 12, 11:01 PM EDTAreal Flood AdvisoryJKL3 hr
Mar 20, 6:50 AM EDTAreal Flood AdvisoryJKL115 min
Mar 20, 3:45 PM EDTSevere Thunderstorm WarningJKL45 min
Mar 29, 5:09 AM EDTSpecial Weather StatementJKL51 min
Mar 30, 2:34 PM EDTRed Flag WarningJKL4 hr
Apr 8, 6:27 PM EDTSevere Thunderstorm WarningJKL33 min
Apr 8, 10:14 PM EDTMesoscale DiscussionSPC3 hr
Apr 8, 10:51 PM EDTTornado WatchSPC5 hr
Apr 9, 12:21 AM EDTSevere Thunderstorm WarningJKL39 min
Apr 9, 12:56 AM EDTSevere Thunderstorm WarningJKL34 min
Apr 9, 1:39 AM EDTSpecial Weather StatementJKL36 min
Apr 9, 4:15 PM EDTFreeze WatchJKL12 hr
Apr 10, 4:05 AM EDTFreeze WarningJKL30 hr
Apr 12, 3:55 AM EDTWind AdvisoryJKL34 hr
Apr 13, 7:21 AM EDTSpecial Weather StatementJKL24 min
Apr 14, 4:08 AM EDTFreeze WarningJKL30 hr
Apr 15, 10:25 AM EDTFrost AdvisoryJKL23 hr
Apr 15, 10:25 AM EDTFreeze WarningJKL23 hr
Apr 18, 3:35 PM EDTFrost AdvisoryJKL17 hr
Apr 21, 4:00 AM EDTFrost AdvisoryJKL30 hr
Apr 25, 5:48 PM EDTSpecial Weather StatementJKL42 min
Apr 25, 6:01 PM EDTSevere Thunderstorm WarningJKL29 min
Apr 25, 6:19 PM EDTTornado WarningJKL26 min
Apr 25, 6:31 PM EDTAreal Flood AdvisoryJKL3 hr
Apr 27, 3:23 AM EDTDense Fog AdvisoryJKL7 hr
Apr 29, 7:16 AM EDTWind AdvisoryJKL7 hr
May 3, 6:35 PM EDTMesoscale DiscussionSPC55 min
May 3, 6:52 PM EDTSevere Thunderstorm WatchSPC3 hr
May 3, 7:31 PM EDTSpecial Weather StatementJKL44 min
May 3, 7:40 PM EDTSevere Thunderstorm WarningJKL65 min
May 3, 8:42 PM EDTSpecial Weather StatementJKL63 min
May 5, 6:14 AM EDTSpecial Weather StatementJKL61 min
May 5, 6:28 AM EDTAreal Flood AdvisoryJKL3 hr
May 5, 9:38 AM EDTFlash Flood WarningJKL3 hr
May 5, 12:31 PM EDTAreal Flood WarningJKL7 hr
May 5, 5:46 PM EDTRiver Flood AdvisoryJKL16 hr
May 6, 4:04 PM EDTFrost AdvisoryJKL17 hr
May 7, 3:55 AM EDTFreeze WarningJKL54 hr
May 8, 4:29 PM EDTFreeze WatchJKL12 hr
May 9, 4:12 AM EDTFreeze WarningJKL29 hr
May 11, 3:25 AM EDTFrost AdvisoryJKL30 hr
May 17, 3:45 PM EDTFlash Flood WatchJKL4 days
May 18, 1:46 PM EDTMesoscale DiscussionSPC119 min
May 18, 2:18 PM EDTTornado WatchSPC7 hr
May 18, 4:32 PM EDTMesoscale DiscussionSPC88 min
May 18, 7:20 PM EDTMesoscale DiscussionSPC115 min
May 18, 10:50 PM EDTAreal Flood AdvisoryJKL10 hr
May 19, 8:03 AM EDTAreal Flood WarningJKL12 hr
May 19, 10:12 AM EDTAreal Flood AdvisoryJKL9 hr
May 19, 12:55 PM EDTAreal Flood AdvisoryJKL6 hr
May 19, 6:43 PM EDTAreal Flood AdvisoryJKL3 hr
May 19, 7:20 PM EDTAreal Flood AdvisoryJKL115 min
May 19, 7:47 PM EDTRiver Flood AdvisoryJKL22 hr
May 19, 8:03 PM EDTAreal Flood AdvisoryJKL6 hr
May 19, 9:20 PM EDTAreal Flood AdvisoryJKL4 hr
May 23, 5:09 PM EDTSpecial Weather StatementJKL36 min
May 23, 5:13 PM EDTSevere Thunderstorm WarningJKL47 min
May 28, 9:22 PM EDTSpecial Weather StatementJKL38 min
Jun 4, 3:23 PM EDTAreal Flood AdvisoryJKL3 hr
Jun 4, 8:57 PM EDTSpecial Weather StatementJKL63 min
Jun 4, 9:44 PM EDTSpecial Weather StatementJKL61 min
Jun 5, 10:42 PM EDTDense Fog AdvisoryJKL10 hr
Jun 10, 4:39 PM EDTSpecial Weather StatementJKL36 min
Jun 10, 5:30 PM EDTSevere Thunderstorm WatchSPC5 hr
Jun 10, 6:40 PM EDTSevere Thunderstorm WarningJKL35 min
Jun 10, 7:09 PM EDTSpecial Weather StatementJKL36 min
Jun 19, 8:57 PM EDTSpecial Weather StatementJKL33 min
Jun 21, 1:00 PM EDTMesoscale DiscussionSPC2 hr
Jun 21, 3:43 PM EDTSpecial Weather StatementJKL32 min
Jun 21, 7:08 PM EDTSevere Thunderstorm WarningJKL37 min
Jun 21, 7:28 PM EDTSpecial Weather StatementJKL32 min
Jun 27, 8:28 PM EDTFlash Flood WatchJKL72 hr
Jul 1, 4:30 PM EDTAreal Flood AdvisoryJKL2 hr
Jul 5, 4:12 PM EDTSpecial Weather StatementJKL33 min
Jul 10, 12:50 PM EDTSpecial Weather StatementJKL25 min
Jul 17, 1:47 PM EDTMesoscale DiscussionSPC118 min
Jul 20, 12:57 PM EDTMesoscale DiscussionSPC2 hr
Jul 21, 11:05 PM EDTSevere Thunderstorm WarningJKL40 min
Jul 22, 12:24 AM EDTAreal Flood AdvisoryJKL112 min
Jul 23, 3:15 PM EDTSpecial Weather StatementJKL30 min
Jul 24, 5:05 PM EDTSevere Thunderstorm WarningJKL25 min
Jul 30, 12:01 PM EDTFlash Flood WatchJKL40 hr
Aug 1, 2:19 PM EDTMesoscale DiscussionSPC56 min
Aug 14, 9:45 AM EDTFlash Flood WatchJKL18 hr
Aug 14, 4:16 PM EDTAreal Flood AdvisoryJKL3 hr
Aug 14, 4:59 PM EDTAreal Flood AdvisoryJKL97 min
Aug 16, 6:27 PM EDTAreal Flood AdvisoryJKL81 min
Aug 18, 8:20 PM EDTSpecial Weather StatementJKL40 min
Sep 13, 4:59 AM EDTFlash Flood WatchJKL12 hr
Sep 14, 1:54 AM EDTDense Fog AdvisoryJKL5 hr
Sep 26, 3:35 AM EDTDense Fog AdvisoryJKL5 hr
Oct 16, 4:31 AM EDTFreeze WatchJKL9 hr
Oct 16, 1:57 PM EDTFreeze WarningJKL19 hr
Oct 30, 3:59 AM EDTFrost AdvisoryJKL30 hr
Oct 30, 3:57 PM EDTFreeze WatchJKL37 hr
Nov 1, 3:51 AM ESTFreeze WarningJKL30 hr
Nov 14, 3:17 AM ESTWind AdvisoryJKL40 hr
Nov 29, 3:44 PM ESTWinter Weather AdvisoryJKL42 hr
Dec 6, 3:06 AM ESTFreezing Fog AdvisoryJKL7 hr
Dec 20, 11:15 PM ESTDense Fog AdvisoryJKL10 hr
Dec 23, 4:51 AM ESTWinter Storm WatchJKL9 hr
Dec 23, 1:32 PM ESTWinter Storm WarningJKL40 hr
Dec 23, 1:32 PM ESTWinter Weather AdvisoryJKL50 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 archive20192021

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.