Alert archive / Kentucky / Knox County

Weather alerts in Knox County, Kentucky, 2023

108 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Knox County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts
108
Warnings
22
Watches
16
Advisories
39
Busiest month
April18 alerts
Busiest day
August 7, 20238 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 3 tornado warnings covering Knox County in 2023 had a tornado report inside them.

Knox County, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings30100%0
Severe thunderstorm warnings12120%475%20 min
Flash flood warnings10100%0

Each office's whole area, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Jackson, KY: tornado warnings18194%250%2 min
NWS Jackson, KY: severe thunderstorm warnings15310333%31887%18 min
NWS Jackson, KY: flash flood warnings15473%1070%65 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 3, 2:09 PM ESTSpecial Weather StatementJKL36 min
Jan 12, 4:09 AM ESTWinter Weather AdvisoryJKL51 hr
Jan 12, 9:41 AM ESTSevere Thunderstorm WatchSPC4 hr
Jan 12, 12:44 PM ESTMesoscale DiscussionSPC2 hr
Jan 24, 2:09 PM ESTWind AdvisoryJKL29 hr
Jan 31, 12:59 PM ESTWinter Weather AdvisoryJKL18 hr
Feb 8, 4:40 AM ESTWind AdvisoryJKL38 hr
Feb 16, 3:00 AM ESTFlood WatchJKL25 hr
Feb 17, 12:37 AM ESTAreal Flood AdvisoryJKL3 hr
Feb 17, 1:29 AM ESTAreal Flood AdvisoryJKL4 hr
Feb 17, 2:50 AM ESTRiver Flood AdvisoryJKL11 hr
Feb 17, 5:27 AM ESTRiver Flood WarningJKL49 hr
Feb 19, 6:56 AM ESTRiver Flood AdvisoryJKL13 hr
Feb 26, 2:59 AM ESTWind AdvisoryJKL43 hr
Mar 2, 3:24 AM ESTHigh Wind WatchJKL11 hr
Mar 2, 1:55 PM ESTHigh Wind WarningJKL33 hr
Mar 3, 12:07 PM ESTTornado WatchSPC4 hr
Mar 3, 10:50 PM ESTWind AdvisoryJKL4 hr
Mar 24, 12:35 PM EDTWind AdvisoryJKL31 hr
Mar 31, 4:33 AM EDTWind AdvisoryJKL30 hr
Mar 31, 3:22 PM EDTHigh Wind WarningJKL27 hr
Apr 1, 2:49 AM EDTTornado WatchSPC4 hr
Apr 1, 3:09 AM EDTTornado WarningJKL36 min
Apr 1, 3:16 AM EDTSpecial Weather StatementJKL59 min
Apr 1, 3:45 AM EDTTornado WarningJKL30 min
Apr 1, 4:01 AM EDTSpecial Weather StatementJKL44 min
Apr 1, 4:15 AM EDTSpecial Weather StatementJKL45 min
Apr 5, 6:12 PM EDTMesoscale DiscussionSPC2 hr
Apr 5, 7:25 PM EDTSpecial Weather StatementJKL35 min
Apr 5, 8:05 PM EDTSpecial Weather StatementJKL40 min
Apr 8, 3:36 PM EDTFrost AdvisoryJKL17 hr
Apr 9, 3:35 AM EDTFrost AdvisoryJKL29 hr
Apr 17, 3:16 PM EDTFrost AdvisoryJKL18 hr
Apr 19, 3:50 AM EDTFire Weather WatchJKL11 hr
Apr 19, 2:59 PM EDTRed Flag WarningJKL29 hr
Apr 22, 3:46 AM EDTFrost AdvisoryJKL30 hr
Apr 23, 3:43 AM EDTFrost AdvisoryJKL30 hr
Apr 24, 3:37 AM EDTFreeze WatchJKL8 hr
Apr 24, 11:54 AM EDTFreeze WarningJKL21 hr
May 7, 9:28 AM EDTMesoscale DiscussionSPC92 min
May 16, 11:43 AM EDTMesoscale DiscussionSPC2 hr
May 16, 12:30 PM EDTSevere Thunderstorm WatchSPC8 hr
May 16, 3:39 PM EDTSpecial Weather StatementJKL36 min
May 16, 3:44 PM EDTSevere Thunderstorm WarningJKL46 min
May 16, 3:56 PM EDTMesoscale DiscussionSPC94 min
May 16, 4:25 PM EDTSpecial Weather StatementJKL50 min
May 17, 5:39 AM EDTDense Fog AdvisoryJKL4 hr
May 20, 10:06 PM EDTDense Fog AdvisoryJKL11 hr
Jun 8, 12:03 AM EDTDense Fog AdvisoryJKL9 hr
Jun 11, 4:34 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 11, 6:58 PM EDTSevere Thunderstorm WarningJKL32 min
Jun 11, 7:22 PM EDTSpecial Weather StatementJKL23 min
Jun 11, 9:07 PM EDTSpecial Weather StatementJKL38 min
Jun 11, 9:40 PM EDTSevere Thunderstorm WarningJKL35 min
Jun 25, 10:21 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 26, 12:25 AM EDTMesoscale DiscussionSPC95 min
Jun 26, 12:32 AM EDTSevere Thunderstorm WarningJKL43 min
Jun 26, 1:18 AM EDTSevere Thunderstorm WarningJKL27 min
Jun 26, 1:23 AM EDTAreal Flood AdvisoryJKL2 hr
Jun 26, 1:42 AM EDTSevere Thunderstorm WarningJKL33 min
Jun 30, 5:53 AM EDTAreal Flood AdvisoryJKL3 hr
Jun 30, 5:59 AM EDTSpecial Weather StatementJKL46 min
Jun 30, 8:59 AM EDTAreal Flood AdvisoryJKL2 hr
Jul 2, 4:42 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 2, 10:37 PM EDTSevere Thunderstorm WarningJKL38 min
Jul 2, 11:22 PM EDTSevere Thunderstorm WarningJKL38 min
Jul 2, 11:57 PM EDTMesoscale DiscussionSPC93 min
Jul 9, 12:22 AM EDTAreal Flood AdvisoryJKL6 hr
Jul 9, 12:44 AM EDTFlash Flood WarningJKL3 hr
Jul 9, 12:53 AM EDTAreal Flood AdvisoryJKL3 hr
Jul 10, 4:27 AM EDTDense Fog AdvisoryJKL5 hr
Jul 15, 5:50 PM EDTAreal Flood AdvisoryJKL3 hr
Jul 18, 2:09 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 18, 8:53 PM EDTSpecial Weather StatementJKL52 min
Jul 20, 4:44 PM EDTSpecial Weather StatementJKL31 min
Jul 27, 3:56 AM EDTHeat AdvisoryJKL40 hr
Jul 29, 2:47 PM EDTMesoscale DiscussionSPC118 min
Jul 29, 3:44 PM EDTSevere Thunderstorm WarningJKL61 min
Jul 29, 3:45 PM EDTSevere Thunderstorm WatchSPC5 hr
Jul 31, 2:26 AM EDTDense Fog AdvisoryJKL7 hr
Aug 4, 12:45 AM EDTDense Fog AdvisoryJKL8 hr
Aug 7, 10:19 AM EDTMesoscale DiscussionSPC86 min
Aug 7, 10:57 AM EDTTornado WatchSPC7 hr
Aug 7, 11:59 AM EDTSpecial Weather StatementJKL31 min
Aug 7, 12:14 PM EDTSevere Thunderstorm WarningJKL31 min
Aug 7, 12:38 PM EDTTornado WarningJKL37 min
Aug 7, 12:40 PM EDTSevere Thunderstorm Warning Considerable damage threatJKL35 min
Aug 7, 1:02 PM EDTAreal Flood AdvisoryJKL2 hr
Aug 7, 1:03 PM EDTMesoscale DiscussionSPC87 min
Aug 12, 12:14 PM EDTMesoscale DiscussionSPC2 hr
Aug 12, 1:41 PM EDTSevere Thunderstorm WarningJKL34 min
Aug 25, 9:32 AM EDTHeat AdvisoryJKL10 hr
Aug 25, 2:31 PM EDTMesoscale DiscussionSPC119 min
Aug 25, 7:39 PM EDTSpecial Weather StatementJKL36 min
Aug 25, 8:15 PM EDTSpecial Weather StatementJKL45 min
Aug 30, 12:54 AM EDTDense Fog AdvisoryJKL9 hr
Sep 18, 12:24 AM EDTDense Fog AdvisoryJKL9 hr
Sep 28, 3:50 AM EDTFlood WatchJKL7 hr
Sep 30, 3:15 AM EDTDense Fog AdvisoryJKL7 hr
Oct 7, 2:55 PM EDTFrost AdvisoryJKL18 hr
Oct 22, 3:00 AM EDTFrost AdvisoryJKL31 hr
Oct 30, 4:26 AM EDTFreeze WatchJKL23 hr
Oct 31, 3:20 AM EDTFreeze WarningJKL31 hr
Dec 9, 9:53 PM ESTMesoscale DiscussionSPC2 hr
Dec 9, 10:22 PM ESTSpecial Weather StatementJKL38 min
Dec 9, 10:48 PM ESTSpecial Weather StatementJKL57 min
Dec 10, 2:48 AM ESTAreal Flood AdvisoryJKL3 hr
Dec 17, 2:05 PM ESTWinter Weather AdvisoryJKL34 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 archive20222024

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.