Alert archive / Kentucky / Marion County

Weather alerts in Marion County, Kentucky, 2020

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

Marion County and its neighbors

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

Alerts
99
Warnings
24
Watches
19
Advisories
29
Busiest month
June21 alerts
Busiest day
June 29, 202010 alerts

Over time

By month

Warning verification

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

Marion County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings13931%250%25 min
Flash flood warnings330%4100%102 min

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Louisville, KY: tornado warnings90100%20%
NWS Louisville, KY: severe thunderstorm warnings1778850%25862%16 min
NWS Louisville, KY: flash flood warnings734341%11177%61 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 10, 3:52 AM ESTWind AdvisoryLMK40 hr
Jan 11, 9:20 AM ESTMesoscale DiscussionSPC55 min
Jan 11, 9:36 AM ESTSevere Thunderstorm WatchSPC7 hr
Jan 11, 11:56 AM ESTSevere Thunderstorm WarningLMK34 min
Jan 11, 8:07 PM ESTSpecial Weather StatementLMK38 min
Jan 11, 8:12 PM ESTHigh Wind WarningLMK2 hr
Jan 17, 9:37 PM ESTWind AdvisoryLMK17 hr
Feb 4, 3:34 PM ESTFlood WatchLMK37 hr
Feb 6, 2:38 PM ESTWinter Weather AdvisoryLMK22 hr
Feb 11, 11:33 AM ESTFlash Flood WatchLMK43 hr
Feb 12, 7:10 PM ESTAreal Flood AdvisoryLMK5 hr
Feb 28, 8:55 PM ESTSpecial Weather StatementLMK35 min
Mar 12, 10:57 AM EDTFlash Flood WatchLMK15 hr
Mar 12, 6:09 PM EDTTornado WatchSPC5 hr
Mar 20, 3:22 AM EDTMesoscale DiscussionSPC83 min
Mar 28, 9:15 PM EDTTornado WatchSPC6 hr
Mar 28, 11:02 PM EDTSevere Thunderstorm WarningLMK43 min
Mar 28, 11:34 PM EDTMesoscale DiscussionSPC86 min
Mar 29, 12:54 AM EDTSevere Thunderstorm WarningLMK20 min
Mar 29, 1:09 AM EDTAreal Flood AdvisoryLMK2 hr
Apr 8, 6:52 PM EDTMesoscale DiscussionSPC2 hr
Apr 8, 7:24 PM EDTTornado WatchSPC5 hr
Apr 8, 8:46 PM EDTMesoscale DiscussionSPC119 min
Apr 8, 11:29 PM EDTSevere Thunderstorm WarningLMK46 min
Apr 8, 11:59 PM EDTSevere Thunderstorm WarningLMK46 min
Apr 9, 3:14 PM EDTFreeze WatchLMK12 hr
Apr 10, 3:36 AM EDTFreeze WarningLMK29 hr
Apr 12, 3:45 AM EDTWind AdvisoryLMK32 hr
Apr 13, 7:50 PM EDTFreeze WatchLMK8 hr
Apr 14, 3:20 AM EDTFreeze WarningLMK30 hr
Apr 15, 10:03 AM EDTFreeze WarningLMK23 hr
Apr 21, 3:38 AM EDTFrost AdvisoryLMK29 hr
Apr 27, 3:30 AM EDTDense Fog AdvisoryLMK7 hr
Apr 29, 7:14 AM EDTWind AdvisoryLMK5 hr
May 3, 6:35 PM EDTMesoscale DiscussionSPC55 min
May 3, 7:34 PM EDTAreal Flood AdvisoryLMK116 min
May 7, 3:07 AM EDTFreeze WarningLMK54 hr
May 8, 1:11 PM EDTSpecial Weather StatementLMK64 min
May 9, 4:31 AM EDTFrost AdvisoryLMK27 hr
May 17, 3:03 PM EDTFlash Flood WatchLMK60 hr
May 18, 1:46 PM EDTMesoscale DiscussionSPC119 min
May 28, 11:11 PM EDTSpecial Weather StatementLMK34 min
Jun 4, 9:47 PM EDTAreal Flood AdvisoryLMK118 min
Jun 10, 11:54 AM EDTSevere Thunderstorm WatchSPC6 hr
Jun 10, 3:40 PM EDTSpecial Weather StatementLMK35 min
Jun 21, 4:34 PM EDTSpecial Weather StatementLMK41 min
Jun 27, 7:57 PM EDTSpecial Weather StatementLMK33 min
Jun 27, 8:24 PM EDTFlash Flood WatchLMK3 days
Jun 27, 9:58 PM EDTSpecial Weather StatementLMK47 min
Jun 29, 12:54 AM EDTSpecial Weather StatementLMK36 min
Jun 29, 1:30 AM EDTSpecial Weather StatementLMK45 min
Jun 29, 1:40 AM EDTAreal Flood AdvisoryLMK2 hr
Jun 29, 2:46 AM EDTAreal Flood AdvisoryLMK119 min
Jun 29, 4:54 AM EDTFlash Flood WarningLMK3 hr
Jun 29, 9:17 AM EDTAreal Flood AdvisoryLMK118 min
Jun 29, 7:05 PM EDTSevere Thunderstorm WarningLMK25 min
Jun 29, 7:28 PM EDTFlash Flood WarningLMK4 hr
Jun 29, 7:29 PM EDTSevere Thunderstorm WarningLMK31 min
Jun 29, 7:56 PM EDTSevere Thunderstorm WarningLMK35 min
Jun 29, 8:45 PM EDTSpecial Weather StatementLMK30 min
Jun 29, 9:14 PM EDTFlash Flood WarningLMK3 hr
Jun 29, 9:14 PM EDTSpecial Weather StatementLMK46 min
Jun 29, 11:46 PM EDTAreal Flood WarningLMK3 hr
Jul 1, 6:49 PM EDTSpecial Weather StatementLMK41 min
Jul 5, 4:08 PM EDTSevere Thunderstorm WarningLMK37 min
Jul 5, 4:33 PM EDTSevere Thunderstorm WarningLMK27 min
Jul 5, 5:05 PM EDTSevere Thunderstorm WarningLMK25 min
Jul 8, 6:09 PM EDTSpecial Weather StatementLMK51 min
Jul 8, 6:59 PM EDTSpecial Weather StatementLMK61 min
Jul 12, 6:01 PM EDTSevere Thunderstorm WarningLMK29 min
Jul 12, 6:16 PM EDTSevere Thunderstorm WarningLMK29 min
Jul 17, 11:50 AM EDTSpecial Weather StatementLMK25 min
Jul 17, 12:19 PM EDTSpecial Weather StatementLMK26 min
Jul 20, 1:42 PM EDTMesoscale DiscussionSPC2 hr
Jul 20, 3:01 PM EDTFlash Flood WatchLMK4 hr
Jul 22, 12:54 PM EDTMesoscale DiscussionSPC2 hr
Jul 30, 12:04 PM EDTFlash Flood WatchLMK40 hr
Jul 31, 12:13 AM EDTAreal Flood AdvisoryLMK3 hr
Jul 31, 7:38 PM EDTAreal Flood AdvisoryLMK2 hr
Aug 14, 9:06 AM EDTAreal Flood AdvisoryLMK3 hr
Aug 14, 9:20 AM EDTFlash Flood WatchLMK18 hr
Aug 31, 5:51 AM EDTAreal Flood AdvisoryLMK107 min
Sep 2, 3:04 PM EDTFlash Flood WatchLMK19 hr
Sep 13, 3:48 AM EDTFlash Flood WatchLMK12 hr
Sep 14, 2:14 AM EDTDense Fog AdvisoryLMK5 hr
Sep 26, 3:15 AM EDTDense Fog AdvisoryLMK5 hr
Sep 29, 1:47 AM EDTDense Fog AdvisoryLMK7 hr
Oct 16, 3:16 AM EDTFrost AdvisoryLMK30 hr
Oct 23, 2:30 PM EDTMesoscale DiscussionSPC3 hr
Oct 30, 3:29 AM EDTFrost AdvisoryLMK31 hr
Oct 30, 2:30 PM EDTFreeze WatchLMK38 hr
Nov 1, 3:00 AM ESTFreeze WarningLMK30 hr
Nov 14, 3:26 AM ESTWind AdvisoryLMK40 hr
Nov 18, 3:37 PM ESTFire Weather WatchLMK12 hr
Nov 19, 3:21 AM ESTRed Flag WarningLMK16 hr
Dec 6, 2:47 AM ESTFreezing Fog AdvisoryLMK7 hr
Dec 20, 11:17 PM ESTDense Fog AdvisoryLMK6 hr
Dec 23, 4:15 PM ESTWind AdvisoryLMK12 hr
Dec 24, 3:36 AM ESTWinter Weather AdvisoryLMK33 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.