Alert archive / Kentucky / Harrison County

Weather alerts in Harrison County, Kentucky, 2010

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

Harrison County and its neighbors

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

Alerts
137
Warnings
24
Watches
18
Advisories
39
Busiest month
May23 alerts
Busiest day
April 5, 20106 alerts

Over time

By month

Warning verification

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

Harrison County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings7443%650%7 min
Flash flood warnings2150%10%

Each office's whole area, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Louisville, KY: tornado warnings39685%1258%4 min
NWS Louisville, KY: severe thunderstorm warnings27312056%29070%16 min
NWS Louisville, KY: flash flood warnings491765%5671%131 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 5, 2:41 PM ESTWinter Storm WatchLMK25 hr
Jan 6, 4:10 PM ESTWinter Storm WarningLMK19 hr
Jan 6, 4:10 PM ESTWinter Weather AdvisoryLMK27 hr
Jan 18, 9:37 PM ESTDense Fog AdvisoryLMK10 hr
Jan 26, 5:07 AM ESTWinter Weather AdvisoryLMK7 hr
Jan 28, 4:38 PM ESTWinter Weather AdvisoryLMK42 hr
Feb 4, 3:27 PM ESTWinter Weather AdvisoryLMK13 hr
Feb 5, 10:50 AM ESTWinter Storm WarningLMK17 hr
Feb 5, 10:50 AM ESTWinter Weather AdvisoryLMK24 hr
Feb 8, 4:55 AM ESTWinter Weather AdvisoryLMK32 hr
Feb 8, 11:27 AM ESTWinter Storm WarningLMK26 hr
Feb 9, 9:02 PM ESTWinter Weather AdvisoryLMK19 hr
Feb 13, 3:28 PM ESTWinter Storm WatchLMK12 hr
Feb 14, 3:26 AM ESTWinter Storm WarningLMK40 hr
Feb 15, 9:37 PM ESTWinter Weather AdvisoryLMK11 hr
Feb 24, 10:26 PM ESTWinter Weather AdvisoryLMK11 hr
Feb 26, 3:43 PM ESTWinter Weather AdvisoryLMK17 hr
Mar 12, 12:04 PM ESTSevere Thunderstorm WatchSPC6 hr
Mar 12, 2:40 PM ESTMesoscale DiscussionSPC65 min
Mar 12, 4:06 PM ESTSpecial Weather StatementLMK39 min
Mar 28, 4:32 PM EDTSpecial Weather StatementLMK28 min
Mar 28, 5:11 PM EDTSpecial Weather StatementLMK19 min
Apr 5, 6:09 PM EDTSpecial Weather StatementLMK36 min
Apr 5, 6:14 PM EDTSevere Thunderstorm WarningLMK16 min
Apr 5, 6:47 PM EDTMesoscale DiscussionSPC58 min
Apr 5, 7:18 PM EDTSpecial Weather StatementLMK27 min
Apr 5, 7:36 PM EDTSevere Thunderstorm WarningLMK24 min
Apr 5, 7:58 PM EDTFlash Flood WarningLMK62 min
Apr 5, 8:03 PM EDTSevere Thunderstorm WarningLMK12 min
Apr 7, 5:22 AM EDTRed Flag WarningLMK6 hr
Apr 7, 10:19 PM EDTSevere Thunderstorm WatchSPC4 hr
Apr 7, 11:16 PM EDTMesoscale DiscussionSPC119 min
Apr 8, 12:48 AM EDTMesoscale DiscussionSPC57 min
Apr 9, 3:11 PM EDTFrost AdvisoryLMK18 hr
Apr 16, 12:44 PM EDTMesoscale DiscussionSPC2 hr
Apr 16, 4:34 PM EDTMesoscale DiscussionSPC86 min
Apr 16, 6:14 PM EDTMesoscale DiscussionSPC61 min
Apr 17, 4:12 AM EDTFrost AdvisoryLMK28 hr
Apr 24, 6:45 PM EDTMesoscale DiscussionSPC60 min
Apr 24, 7:15 PM EDTTornado WatchSPC8 hr
Apr 27, 3:43 PM EDTFrost AdvisoryLMK17 hr
Apr 29, 3:29 PM EDTFlash Flood WatchLMK3 days
May 1, 5:41 AM EDTSpecial Weather StatementLMK79 min
May 1, 6:55 AM EDTSpecial Weather StatementLMK50 min
May 2, 5:14 AM EDTMesoscale DiscussionSPC61 min
May 2, 5:36 AM EDTTornado WatchSPC6 hr
May 2, 8:01 AM EDTFlash Flood WarningLMK3 hr
May 2, 10:31 AM EDTRiver Flood WarningLMK64 hr
May 2, 11:38 AM EDTAreal Flood WarningLMK6 hr
May 2, 5:37 PM EDTAreal Flood WarningLMK14 hr
May 3, 7:02 AM EDTAreal Flood WarningLMK7 hr
May 3, 7:04 AM EDTDense Fog AdvisoryLMK3 hr
May 7, 4:02 AM EDTWind AdvisoryLMK15 hr
May 7, 6:53 PM EDTSevere Thunderstorm WatchSPC7 hr
May 7, 10:40 PM EDTMesoscale DiscussionSPC95 min
May 12, 11:05 AM EDTSpecial Weather StatementLMK25 min
May 12, 11:24 AM EDTSpecial Weather StatementLMK36 min
May 12, 11:54 AM EDTSpecial Weather StatementLMK51 min
May 12, 12:16 PM EDTAreal Flood AdvisoryLMK3 hr
May 13, 1:46 PM EDTTornado WatchSPC6 hr
May 13, 4:02 PM EDTMesoscale DiscussionSPC88 min
May 20, 5:45 AM EDTDense Fog AdvisoryLMK3 hr
May 21, 5:29 PM EDTMesoscale DiscussionSPC31 min
May 21, 7:41 PM EDTMesoscale DiscussionSPC64 min
May 28, 8:55 AM EDTSpecial Weather StatementLMK20 min
Jun 4, 5:12 PM EDTAreal Flood AdvisoryLMK74 min
Jun 11, 1:38 PM EDTMesoscale DiscussionSPC2 hr
Jun 11, 2:28 PM EDTSpecial Weather StatementLMK32 min
Jun 11, 3:31 PM EDTFlash Flood WatchLMK16 hr
Jun 12, 5:47 PM EDTMesoscale DiscussionSPC88 min
Jun 13, 9:02 PM EDTMesoscale DiscussionSPC58 min
Jun 13, 11:51 PM EDTSpecial Weather StatementLMK39 min
Jun 14, 2:45 PM EDTMesoscale DiscussionSPC60 min
Jun 15, 5:47 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 15, 6:58 PM EDTMesoscale DiscussionSPC62 min
Jun 15, 8:41 PM EDTMesoscale DiscussionSPC64 min
Jun 21, 1:44 PM EDTAreal Flood AdvisoryLMK3 hr
Jun 21, 1:52 PM EDTSpecial Weather StatementLMK38 min
Jun 21, 1:59 PM EDTSevere Thunderstorm WarningLMK31 min
Jun 27, 12:52 PM EDTMesoscale DiscussionSPC2 hr
Jun 28, 1:32 AM EDTSpecial Weather StatementLMK58 min
Jun 28, 2:16 AM EDTSpecial Weather StatementLMK59 min
Jun 28, 3:18 AM EDTSpecial Weather StatementLMK57 min
Jul 17, 6:24 AM EDTSpecial Weather StatementLMK36 min
Jul 19, 8:37 PM EDTSpecial Weather StatementLMK23 min
Jul 22, 3:59 PM EDTHeat AdvisoryLMK27 hr
Jul 22, 3:59 PM EDTHeat AdvisoryLMK51 hr
Jul 27, 4:43 PM EDTFlash Flood WatchLMK2 hr
Jul 27, 5:31 PM EDTSpecial Weather StatementLMK29 min
Aug 2, 3:37 PM EDTHeat AdvisoryLMK53 hr
Aug 3, 3:32 PM EDTHeat AdvisoryLMK29 hr
Aug 4, 2:54 PM EDTSpecial Weather StatementLMK21 min
Aug 4, 3:09 PM EDTMesoscale DiscussionSPC66 min
Aug 4, 3:42 PM EDTSevere Thunderstorm WatchSPC6 hr
Aug 4, 6:25 PM EDTMesoscale DiscussionSPC65 min
Aug 4, 11:52 PM EDTMesoscale DiscussionSPC113 min
Aug 5, 4:37 AM EDTSpecial Weather StatementLMK38 min
Aug 5, 8:51 AM EDTMesoscale DiscussionSPC114 min
Aug 5, 10:26 AM EDTSpecial Weather StatementLMK34 min
Aug 5, 10:33 AM EDTSevere Thunderstorm WarningLMK27 min
Aug 5, 10:38 AM EDTSevere Thunderstorm WatchSPC7 hr
Aug 9, 3:17 PM EDTHeat AdvisoryLMK29 hr
Aug 11, 3:41 AM EDTHeat AdvisoryLMK5 days
Aug 11, 12:39 PM EDTMesoscale DiscussionSPC2 hr
Aug 11, 4:46 PM EDTSpecial Weather StatementLMK29 min
Aug 14, 2:43 PM EDTMesoscale DiscussionSPC2 hr
Aug 14, 4:23 PM EDTSevere Thunderstorm WatchSPC8 hr
Aug 14, 6:53 PM EDTSpecial Weather StatementLMK52 min
Aug 14, 7:04 PM EDTMesoscale DiscussionSPC86 min
Aug 15, 6:43 PM EDTSpecial Weather StatementLMK62 min
Aug 19, 7:35 AM EDTDense Fog AdvisoryLMK2 hr
Sep 7, 3:58 PM EDTMesoscale DiscussionSPC62 min
Oct 5, 3:37 AM EDTFrost AdvisoryLMK29 hr
Oct 21, 3:41 AM EDTRed Flag WarningLMK14 hr
Oct 21, 3:58 PM EDTFrost AdvisoryLMK17 hr
Oct 23, 3:29 AM EDTRed Flag WarningLMK16 hr
Oct 25, 2:53 PM EDTWind AdvisoryLMK24 hr
Oct 26, 7:00 AM EDTMesoscale DiscussionSPC2 hr
Oct 26, 8:55 AM EDTTornado WatchSPC7 hr
Oct 26, 12:59 PM EDTSevere Thunderstorm WarningLMK31 min
Oct 26, 1:29 PM EDTSevere Thunderstorm WarningLMK20 min
Oct 28, 2:58 PM EDTFreeze WarningLMK12 hr
Oct 29, 4:06 AM EDTFreeze WarningLMK29 hr
Oct 29, 3:32 PM EDTFire Weather WatchLMK12 hr
Oct 30, 3:45 AM EDTRed Flag WarningLMK15 hr
Nov 16, 5:48 PM ESTWind AdvisoryLMK3 hr
Nov 18, 3:49 PM ESTDense Fog AdvisoryLMK16 hr
Dec 3, 8:05 AM ESTDense Fog AdvisoryLMK55 min
Dec 3, 3:02 PM ESTWinter Weather AdvisoryLMK28 hr
Dec 11, 3:01 PM ESTWinter Weather AdvisoryLMK46 hr
Dec 14, 4:23 AM ESTWinter Storm WatchLMK12 hr
Dec 14, 4:13 PM ESTWinter Storm WarningLMK45 hr
Dec 14, 4:13 PM ESTWinter Weather AdvisoryLMK18 hr
Dec 16, 4:17 AM ESTMesoscale DiscussionSPC6 hr
Dec 22, 6:16 AM ESTDense Fog AdvisoryLMK3 hr
Dec 24, 2:16 AM ESTWinter Weather AdvisoryLMK27 hr
Dec 25, 3:42 PM ESTWinter Weather AdvisoryLMK27 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.