Alert archive / Tennessee / Rhea County

Weather alerts in Rhea County, Tennessee, 2012

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

Rhea County and its neighbors

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

Alerts
123
Warnings
33
Watches
17
Advisories
37
Busiest month
March27 alerts
Busiest day
March 2, 201212 alerts

Over time

By month

Warning verification

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

1 of 6 tornado warnings covering Rhea County in 2012 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 12 minutes after it went out.

Rhea County, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings6183%1100%12 min
Severe thunderstorm warnings231630%1275%19 min
Flash flood warnings10100%0

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 12, 3:38 AM ESTWind AdvisoryMRX24 hr
Jan 21, 5:20 AM ESTMesoscale DiscussionSPC55 min
Jan 23, 2:25 AM ESTMesoscale DiscussionSPC2 hr
Jan 23, 2:54 AM ESTSevere Thunderstorm WatchSPC3 hr
Jan 26, 6:40 PM ESTAreal Flood AdvisoryMRX3 hr
Jan 26, 9:57 PM ESTAreal Flood AdvisoryMRX4 hr
Feb 10, 1:03 PM ESTWind 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, 5:55 PM ESTSevere Thunderstorm WarningMRX50 min
Feb 22, 6:49 PM ESTMesoscale DiscussionSPC86 min
Feb 22, 6:51 PM ESTSevere Thunderstorm WarningMRX39 min
Feb 22, 8:09 PM ESTSevere Thunderstorm WarningMRX36 min
Feb 22, 8:20 PM ESTSevere Thunderstorm WarningMRX40 min
Feb 23, 3:37 PM ESTWind AdvisoryMRX27 hr
Feb 24, 2:00 AM ESTMesoscale DiscussionSPC2 hr
Feb 29, 12:31 PM ESTTornado WatchSPC8 hr
Feb 29, 6:20 PM ESTSevere Thunderstorm WarningMRX40 min
Feb 29, 8:33 PM ESTMesoscale DiscussionSPC57 min
Mar 2, 10:07 AM ESTMesoscale DiscussionSPC53 min
Mar 2, 10:25 AM ESTTornado WatchSPC5 hr
Mar 2, 10:59 AM ESTFlood WatchMRX14 hr
Mar 2, 11:57 AM ESTTornado WarningMRX33 min
Mar 2, 12:30 PM ESTTornado WarningMRX30 min
Mar 2, 12:44 PM ESTSevere Thunderstorm WarningMRX31 min
Mar 2, 12:46 PM ESTMesoscale DiscussionSPC29 min
Mar 2, 2:58 PM ESTMesoscale DiscussionSPC62 min
Mar 2, 3:19 PM ESTTornado WatchSPC8 hr
Mar 2, 4:14 PM ESTSevere Thunderstorm WarningMRX46 min
Mar 2, 5:33 PM ESTTornado WarningMRX27 min
Mar 2, 5:57 PM ESTSevere Thunderstorm WarningMRX18 min
Mar 2, 8:07 PM ESTTornado WarningMRX38 min
Mar 2, 8:15 PM ESTMesoscale DiscussionSPC90 min
Mar 2, 8:18 PM ESTMesoscale DiscussionSPC57 min
Mar 2, 8:38 PM ESTTornado WarningMRX37 min
Mar 15, 2:08 PM EDTMesoscale DiscussionSPC2 hr
Mar 15, 6:49 PM EDTAreal Flood AdvisoryMRX116 min
Mar 15, 7:23 PM EDTMesoscale DiscussionSPC97 min
Mar 23, 10:42 PM EDTTornado WarningMRX48 min
Mar 23, 11:16 PM EDTMesoscale DiscussionSPC89 min
Mar 23, 11:33 PM EDTSevere Thunderstorm WarningMRX42 min
Mar 24, 1:27 AM EDTSevere Thunderstorm WarningMRX48 min
Mar 31, 1:47 PM EDTSevere Thunderstorm WatchSPC8 hr
Mar 31, 4:02 PM EDTMesoscale DiscussionSPC58 min
Mar 31, 6:00 PM EDTMesoscale DiscussionSPC30 min
Apr 1, 3:54 AM EDTDense Fog AdvisoryMRX5 hr
Apr 2, 1:48 PM EDTMesoscale DiscussionSPC87 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 5, 7:03 PM EDTAreal Flood AdvisoryMRX3 hr
Apr 10, 3:35 AM EDTFrost AdvisoryMRX29 hr
Apr 10, 8:49 PM EDTFreeze WatchMRX18 hr
Apr 11, 3:01 PM EDTFrost AdvisoryMRX18 hr
Apr 26, 6:22 AM EDTSevere Thunderstorm WatchSPC3 hr
Apr 26, 7:24 AM EDTMesoscale DiscussionSPC96 min
Apr 26, 7:37 AM EDTSevere Thunderstorm WarningMRX53 min
Apr 26, 8:30 AM EDTSevere Thunderstorm WarningMRX60 min
Apr 26, 8:47 AM EDTMesoscale DiscussionSPC88 min
Apr 26, 6:40 PM EDTMesoscale DiscussionSPC95 min
May 20, 1:50 PM EDTAreal Flood AdvisoryMRX55 min
May 24, 3:30 AM EDTDense Fog AdvisoryMRX7 hr
May 29, 8:23 PM EDTSevere Thunderstorm WarningMRX33 min
Jun 14, 7:01 PM EDTSevere Thunderstorm WarningMRX44 min
Jun 14, 8:15 PM EDTAreal Flood AdvisoryMRX3 hr
Jun 14, 8:29 PM EDTSevere Thunderstorm WarningMRX46 min
Jun 29, 4:17 AM EDTHeat AdvisoryMRX4 days
Jul 1, 11:13 PM EDTSevere Thunderstorm WarningMRX47 min
Jul 2, 6:16 PM EDTMesoscale DiscussionSPC2 hr
Jul 5, 3:38 AM EDTHeat AdvisoryMRX17 hr
Jul 5, 1:11 PM EDTMesoscale DiscussionSPC94 min
Jul 5, 2:50 PM EDTHeat AdvisoryMRX13 hr
Jul 5, 3:19 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 5, 6:40 PM EDTSevere Thunderstorm WarningMRX65 min
Jul 6, 3:28 PM EDTHeat AdvisoryMRX30 hr
Jul 9, 8:58 PM EDTAreal Flood AdvisoryMRX3 hr
Jul 9, 9:07 PM EDTAreal Flood AdvisoryMRX113 min
Jul 9, 10:32 PM EDTFlash Flood WarningMRX3 hr
Jul 10, 12:23 PM EDTMesoscale DiscussionSPC2 hr
Jul 12, 5:45 PM EDTAreal Flood AdvisoryMRX3 hr
Jul 15, 5:17 PM EDTAreal Flood AdvisoryMRX118 min
Jul 18, 8:13 AM EDTAreal Flood AdvisoryMRX3 hr
Jul 18, 4:55 PM EDTSevere Thunderstorm WarningMRX50 min
Jul 19, 7:42 PM EDTMesoscale DiscussionSPC93 min
Jul 28, 1:57 PM EDTMesoscale DiscussionSPC3 hr
Jul 31, 7:41 PM EDTSevere Thunderstorm WarningMRX49 min
Aug 1, 2:52 PM EDTMesoscale DiscussionSPC53 min
Aug 1, 3:40 PM EDTSevere Thunderstorm WatchSPC7 hr
Aug 2, 8:24 PM EDTAreal Flood AdvisoryMRX3 hr
Aug 4, 5:46 PM EDTAreal Flood AdvisoryMRX51 min
Aug 7, 11:09 PM EDTAreal Flood AdvisoryMRX73 min
Aug 9, 12:20 PM EDTSevere Thunderstorm WarningMRX55 min
Aug 9, 1:16 PM EDTMesoscale DiscussionSPC59 min
Aug 10, 12:20 PM EDTMesoscale DiscussionSPC85 min
Aug 10, 4:09 PM EDTSevere Thunderstorm WarningMRX51 min
Aug 13, 1:38 PM EDTSevere Thunderstorm WatchSPC4 hr
Aug 13, 4:49 PM EDTMesoscale DiscussionSPC56 min
Aug 16, 10:26 PM EDTMesoscale DiscussionSPC3 hr
Aug 17, 1:15 AM EDTSevere Thunderstorm WarningMRX60 min
Aug 17, 2:15 AM EDTSevere Thunderstorm WarningMRX45 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, 4:53 PM EDTMesoscale DiscussionSPC97 min
Sep 17, 6:39 PM EDTTornado WatchSPC8 hr
Sep 17, 8:37 PM EDTAreal Flood AdvisoryMRX3 hr
Sep 18, 12:28 AM EDTAreal Flood AdvisoryMRX6 hr
Sep 18, 8:22 AM EDTAreal Flood WarningMRX3 hr
Oct 1, 6:40 PM EDTMesoscale DiscussionSPC95 min
Oct 1, 8:06 PM EDTTornado WatchSPC3 hr
Oct 10, 3:06 AM EDTFrost AdvisoryMRX30 hr
Oct 28, 3:13 AM EDTWind AdvisoryMRX65 hr
Oct 28, 3:39 AM EDTFrost AdvisoryMRX12 hr
Oct 31, 4:14 AM EDTFreeze WatchMRX11 hr
Oct 31, 3:02 PM EDTFreeze WarningMRX18 hr
Nov 4, 9:52 PM ESTFrost AdvisoryMRX11 hr
Nov 8, 3:19 PM ESTFreeze WarningMRX17 hr
Dec 20, 3:31 AM ESTWind AdvisoryMRX39 hr
Dec 24, 3:29 PM ESTDense Fog AdvisoryMRX19 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.