Alert archive / North Carolina / Cherokee County

Weather alerts in Cherokee County, North Carolina, 2012

106 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Cherokee County and its neighbors

Each county as a circle sized by its count in 2012. Tap one for its archive.

Alerts
106
Warnings
27
Watches
15
Advisories
30
Busiest month
April19 alerts
Busiest day
March 2, 20127 alerts

Over time

By month

Warning verification

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

2 of 5 tornado warnings covering Cherokee County in 2012 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 8 minutes after it went out.

Cherokee County, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings5260%2100%8 min
Severe thunderstorm warnings19858%650%28 min
Flash flood warnings00

Each office's whole area, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Morristown, TN: tornado warnings811285%2383%19 min
NWS Morristown, TN: severe thunderstorm warnings31119836%35878%22 min
NWS Morristown, TN: flash flood warnings16850%1493%63 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 9, 9:11 PM ESTDense Fog AdvisoryMRX8 hr
Jan 11, 3:30 PM ESTWinter Weather AdvisoryMRX45 hr
Jan 12, 3:38 AM ESTWind AdvisoryMRX24 hr
Jan 17, 5:26 PM ESTSevere Thunderstorm WarningMRX49 min
Jan 21, 5:55 AM ESTTornado WatchSPC7 hr
Jan 21, 8:22 AM ESTMesoscale DiscussionSPC83 min
Jan 23, 2:54 AM ESTSevere Thunderstorm WatchSPC3 hr
Jan 24, 2:01 AM ESTDense Fog AdvisoryMRX7 hr
Feb 10, 1:03 PM ESTWind AdvisoryMRX30 hr
Feb 13, 4:20 AM ESTWinter Weather AdvisoryMRX30 hr
Feb 14, 6:47 PM ESTDense Fog AdvisoryMRX15 hr
Feb 21, 12:24 PM ESTWind AdvisoryMRX7 hr
Feb 22, 3:08 PM ESTMesoscale DiscussionSPC2 hr
Feb 22, 7:34 PM ESTSevere Thunderstorm WarningMRX26 min
Feb 23, 3:37 PM ESTWind AdvisoryMRX27 hr
Feb 24, 6:56 AM ESTMesoscale DiscussionSPC94 min
Feb 24, 9:05 AM ESTMesoscale DiscussionSPC25 min
Feb 24, 12:00 PM ESTMesoscale DiscussionSPC60 min
Feb 24, 3:24 PM ESTMesoscale DiscussionSPC66 min
Feb 25, 2:50 AM ESTWind AdvisoryMRX13 hr
Feb 29, 5:36 PM ESTMesoscale DiscussionSPC54 min
Feb 29, 6:37 PM ESTTornado WatchSPC3 hr
Mar 2, 3:30 AM ESTMesoscale DiscussionSPC90 min
Mar 2, 10:25 AM ESTTornado WatchSPC5 hr
Mar 2, 10:59 AM ESTFlood WatchMRX14 hr
Mar 2, 12:46 PM ESTMesoscale DiscussionSPC29 min
Mar 2, 1:49 PM ESTTornado WarningMRX41 min
Mar 2, 2:58 PM ESTMesoscale DiscussionSPC62 min
Mar 2, 3:19 PM ESTTornado WatchSPC8 hr
Mar 2, 7:36 PM ESTTornado WarningMRX24 min
Mar 2, 7:56 PM ESTTornado WarningMRX49 min
Mar 2, 8:15 PM ESTMesoscale DiscussionSPC90 min
Mar 2, 8:35 PM ESTTornado WarningMRX40 min
Mar 2, 8:58 PM ESTTornado WarningMRX47 min
Mar 15, 8:07 AM EDTSevere Thunderstorm WarningMRX38 min
Mar 15, 7:23 PM EDTMesoscale DiscussionSPC97 min
Mar 29, 3:19 PM EDTMesoscale DiscussionSPC116 min
Mar 31, 6:06 PM EDTSevere Thunderstorm WarningMRX54 min
Apr 1, 3:54 AM EDTDense Fog AdvisoryMRX5 hr
Apr 2, 1:48 PM EDTMesoscale DiscussionSPC87 min
Apr 3, 3:03 PM EDTSevere Thunderstorm WarningMRX16 min
Apr 5, 1:54 PM EDTMesoscale DiscussionSPC96 min
Apr 5, 2:21 PM EDTSevere Thunderstorm WatchSPC8 hr
Apr 5, 4:06 PM EDTMesoscale DiscussionSPC54 min
Apr 6, 3:21 AM EDTFrost AdvisoryMRX31 hr
Apr 10, 3:35 AM EDTFrost AdvisoryMRX29 hr
Apr 10, 8:49 PM EDTFreeze WatchMRX18 hr
Apr 11, 3:01 PM EDTFreeze WarningMRX18 hr
Apr 12, 3:00 PM EDTFrost AdvisoryMRX18 hr
Apr 26, 7:24 AM EDTMesoscale DiscussionSPC96 min
Apr 26, 8:10 AM EDTSevere Thunderstorm WatchSPC3 hr
Apr 26, 8:47 AM EDTMesoscale DiscussionSPC88 min
Apr 26, 9:10 AM EDTSevere Thunderstorm WarningMRX65 min
Apr 26, 5:54 PM EDTSevere Thunderstorm WarningMRX66 min
Apr 26, 6:37 PM EDTSevere Thunderstorm WarningMRX23 min
Apr 26, 7:09 PM EDTMesoscale DiscussionSPC96 min
Apr 26, 8:19 PM EDTSevere Thunderstorm WarningMRX56 min
May 24, 3:30 AM EDTDense Fog AdvisoryMRX7 hr
Jun 4, 2:26 AM EDTAreal Flood AdvisoryMRX3 hr
Jun 21, 10:07 PM EDTAreal Flood AdvisoryMRX113 min
Jun 29, 4:17 AM EDTHeat AdvisoryMRX4 days
Jul 2, 12:10 AM EDTSevere Thunderstorm WarningMRX50 min
Jul 2, 12:17 AM EDTSevere Thunderstorm WarningMRX23 min
Jul 3, 6:23 PM EDTMesoscale DiscussionSPC3 hr
Jul 4, 2:02 PM EDTMesoscale DiscussionSPC58 min
Jul 5, 1:11 PM EDTMesoscale DiscussionSPC94 min
Jul 5, 3:19 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 5, 6:29 PM EDTSevere Thunderstorm WarningMRX61 min
Jul 9, 1:01 PM EDTMesoscale DiscussionSPC89 min
Jul 10, 12:23 PM EDTMesoscale DiscussionSPC2 hr
Jul 23, 12:58 PM EDTMesoscale DiscussionSPC3 hr
Jul 25, 3:11 PM EDTMesoscale DiscussionSPC3 hr
Jul 27, 1:54 PM EDTMesoscale DiscussionSPC66 min
Jul 28, 1:57 PM EDTMesoscale DiscussionSPC3 hr
Jul 31, 9:13 PM EDTSevere Thunderstorm WarningMRX47 min
Jul 31, 10:15 PM EDTSevere Thunderstorm WarningMRX60 min
Jul 31, 11:14 PM EDTSevere Thunderstorm WarningMRX61 min
Aug 1, 2:52 PM EDTMesoscale DiscussionSPC53 min
Aug 1, 6:44 PM EDTSevere Thunderstorm WarningMRX31 min
Aug 1, 7:18 PM EDTSevere Thunderstorm WarningMRX27 min
Aug 1, 8:54 PM EDTMesoscale DiscussionSPC66 min
Aug 6, 2:35 PM EDTAreal Flood AdvisoryMRX83 min
Aug 7, 10:15 PM EDTDense Fog AdvisoryMRX8 hr
Aug 9, 1:16 PM EDTMesoscale DiscussionSPC59 min
Aug 9, 1:42 PM EDTSevere Thunderstorm WarningMRX63 min
Aug 10, 6:08 PM EDTSevere Thunderstorm WarningMRX67 min
Aug 10, 7:21 PM EDTAreal Flood AdvisoryMRX61 min
Sep 2, 6:13 PM EDTMesoscale DiscussionSPC62 min
Sep 2, 6:33 PM EDTSevere Thunderstorm WatchSPC5 hr
Sep 2, 9:43 PM EDTMesoscale DiscussionSPC62 min
Sep 17, 3:23 AM EDTFlood WatchMRX39 hr
Sep 17, 6:39 PM EDTTornado WatchSPC8 hr
Sep 17, 8:14 PM EDTMesoscale DiscussionSPC2 hr
Sep 18, 6:00 AM EDTAreal Flood AdvisoryMRX3 hr
Sep 23, 3:04 PM EDTFrost AdvisoryMRX18 hr
Oct 10, 3:06 AM EDTFrost AdvisoryMRX30 hr
Oct 20, 3:05 PM EDTFrost AdvisoryMRX12 hr
Oct 28, 3:13 AM EDTHigh Wind WatchMRX13 hr
Oct 28, 3:13 AM EDTWind AdvisoryMRX65 hr
Oct 28, 3:39 AM EDTFreeze WarningMRX29 hr
Dec 9, 3:10 PM ESTWind AdvisoryMRX27 hr
Dec 20, 3:31 AM ESTWind AdvisoryMRX39 hr
Dec 24, 2:52 PM ESTHigh Wind WatchMRX19 hr
Dec 24, 3:29 PM ESTDense Fog AdvisoryMRX19 hr
Dec 25, 10:11 AM ESTHigh Wind WarningMRX27 hr
Dec 25, 3:13 PM ESTWind AdvisoryMRX37 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 archive20112013

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.