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
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 6 | 1 | 83% | 1 | 100% | 12 min |
| Severe thunderstorm warnings | 23 | 16 | 30% | 12 | 75% | 19 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Morristown, TN: tornado warnings | 81 | 12 | 85% | 23 | 83% | 19 min |
| NWS Morristown, TN: severe thunderstorm warnings | 311 | 198 | 36% | 358 | 78% | 22 min |
| NWS Morristown, TN: flash flood warnings | 16 | 8 | 50% | 14 | 93% | 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 9, 9:11 PM EST | Dense Fog Advisory | MRX | 8 hr |
| Jan 12, 3:38 AM EST | Wind Advisory | MRX | 24 hr |
| Jan 21, 5:20 AM EST | Mesoscale Discussion | SPC | 55 min |
| Jan 23, 2:25 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Jan 23, 2:54 AM EST | Severe Thunderstorm Watch | SPC | 3 hr |
| Jan 26, 6:40 PM EST | Areal Flood Advisory | MRX | 3 hr |
| Jan 26, 9:57 PM EST | Areal Flood Advisory | MRX | 4 hr |
| Feb 10, 1:03 PM EST | Wind Advisory | MRX | 30 hr |
| Feb 14, 6:47 PM EST | Dense Fog Advisory | MRX | 15 hr |
| Feb 21, 12:24 PM EST | Wind Advisory | MRX | 7 hr |
| Feb 22, 3:08 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 22, 5:55 PM EST | Severe Thunderstorm Warning | MRX | 50 min |
| Feb 22, 6:49 PM EST | Mesoscale Discussion | SPC | 86 min |
| Feb 22, 6:51 PM EST | Severe Thunderstorm Warning | MRX | 39 min |
| Feb 22, 8:09 PM EST | Severe Thunderstorm Warning | MRX | 36 min |
| Feb 22, 8:20 PM EST | Severe Thunderstorm Warning | MRX | 40 min |
| Feb 23, 3:37 PM EST | Wind Advisory | MRX | 27 hr |
| Feb 24, 2:00 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 29, 12:31 PM EST | Tornado Watch | SPC | 8 hr |
| Feb 29, 6:20 PM EST | Severe Thunderstorm Warning | MRX | 40 min |
| Feb 29, 8:33 PM EST | Mesoscale Discussion | SPC | 57 min |
| Mar 2, 10:07 AM EST | Mesoscale Discussion | SPC | 53 min |
| Mar 2, 10:25 AM EST | Tornado Watch | SPC | 5 hr |
| Mar 2, 10:59 AM EST | Flood Watch | MRX | 14 hr |
| Mar 2, 11:57 AM EST | Tornado Warning | MRX | 33 min |
| Mar 2, 12:30 PM EST | Tornado Warning | MRX | 30 min |
| Mar 2, 12:44 PM EST | Severe Thunderstorm Warning | MRX | 31 min |
| Mar 2, 12:46 PM EST | Mesoscale Discussion | SPC | 29 min |
| Mar 2, 2:58 PM EST | Mesoscale Discussion | SPC | 62 min |
| Mar 2, 3:19 PM EST | Tornado Watch | SPC | 8 hr |
| Mar 2, 4:14 PM EST | Severe Thunderstorm Warning | MRX | 46 min |
| Mar 2, 5:33 PM EST | Tornado Warning | MRX | 27 min |
| Mar 2, 5:57 PM EST | Severe Thunderstorm Warning | MRX | 18 min |
| Mar 2, 8:07 PM EST | Tornado Warning | MRX | 38 min |
| Mar 2, 8:15 PM EST | Mesoscale Discussion | SPC | 90 min |
| Mar 2, 8:18 PM EST | Mesoscale Discussion | SPC | 57 min |
| Mar 2, 8:38 PM EST | Tornado Warning | MRX | 37 min |
| Mar 15, 2:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 15, 6:49 PM EDT | Areal Flood Advisory | MRX | 116 min |
| Mar 15, 7:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Mar 23, 10:42 PM EDT | Tornado Warning | MRX | 48 min |
| Mar 23, 11:16 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Mar 23, 11:33 PM EDT | Severe Thunderstorm Warning | MRX | 42 min |
| Mar 24, 1:27 AM EDT | Severe Thunderstorm Warning | MRX | 48 min |
| Mar 31, 1:47 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Mar 31, 4:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Mar 31, 6:00 PM EDT | Mesoscale Discussion | SPC | 30 min |
| Apr 1, 3:54 AM EDT | Dense Fog Advisory | MRX | 5 hr |
| Apr 2, 1:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Apr 5, 1:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Apr 5, 2:21 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 5, 4:06 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Apr 5, 7:03 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Apr 10, 3:35 AM EDT | Frost Advisory | MRX | 29 hr |
| Apr 10, 8:49 PM EDT | Freeze Watch | MRX | 18 hr |
| Apr 11, 3:01 PM EDT | Frost Advisory | MRX | 18 hr |
| Apr 26, 6:22 AM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Apr 26, 7:24 AM EDT | Mesoscale Discussion | SPC | 96 min |
| Apr 26, 7:37 AM EDT | Severe Thunderstorm Warning | MRX | 53 min |
| Apr 26, 8:30 AM EDT | Severe Thunderstorm Warning | MRX | 60 min |
| Apr 26, 8:47 AM EDT | Mesoscale Discussion | SPC | 88 min |
| Apr 26, 6:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| May 20, 1:50 PM EDT | Areal Flood Advisory | MRX | 55 min |
| May 24, 3:30 AM EDT | Dense Fog Advisory | MRX | 7 hr |
| May 29, 8:23 PM EDT | Severe Thunderstorm Warning | MRX | 33 min |
| Jun 14, 7:01 PM EDT | Severe Thunderstorm Warning | MRX | 44 min |
| Jun 14, 8:15 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 14, 8:29 PM EDT | Severe Thunderstorm Warning | MRX | 46 min |
| Jun 29, 4:17 AM EDT | Heat Advisory | MRX | 4 days |
| Jul 1, 11:13 PM EDT | Severe Thunderstorm Warning | MRX | 47 min |
| Jul 2, 6:16 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 3:38 AM EDT | Heat Advisory | MRX | 17 hr |
| Jul 5, 1:11 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 5, 2:50 PM EDT | Heat Advisory | MRX | 13 hr |
| Jul 5, 3:19 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 5, 6:40 PM EDT | Severe Thunderstorm Warning | MRX | 65 min |
| Jul 6, 3:28 PM EDT | Heat Advisory | MRX | 30 hr |
| Jul 9, 8:58 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 9, 9:07 PM EDT | Areal Flood Advisory | MRX | 113 min |
| Jul 9, 10:32 PM EDT | Flash Flood Warning | MRX | 3 hr |
| Jul 10, 12:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 12, 5:45 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 15, 5:17 PM EDT | Areal Flood Advisory | MRX | 118 min |
| Jul 18, 8:13 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 18, 4:55 PM EDT | Severe Thunderstorm Warning | MRX | 50 min |
| Jul 19, 7:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 28, 1:57 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 31, 7:41 PM EDT | Severe Thunderstorm Warning | MRX | 49 min |
| Aug 1, 2:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Aug 1, 3:40 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 2, 8:24 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 4, 5:46 PM EDT | Areal Flood Advisory | MRX | 51 min |
| Aug 7, 11:09 PM EDT | Areal Flood Advisory | MRX | 73 min |
| Aug 9, 12:20 PM EDT | Severe Thunderstorm Warning | MRX | 55 min |
| Aug 9, 1:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Aug 10, 12:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Aug 10, 4:09 PM EDT | Severe Thunderstorm Warning | MRX | 51 min |
| Aug 13, 1:38 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 13, 4:49 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Aug 16, 10:26 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 17, 1:15 AM EDT | Severe Thunderstorm Warning | MRX | 60 min |
| Aug 17, 2:15 AM EDT | Severe Thunderstorm Warning | MRX | 45 min |
| Sep 2, 6:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Sep 2, 6:33 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 2, 9:43 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Sep 17, 3:23 AM EDT | Flood Watch | MRX | 39 hr |
| Sep 17, 4:53 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Sep 17, 6:39 PM EDT | Tornado Watch | SPC | 8 hr |
| Sep 17, 8:37 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Sep 18, 12:28 AM EDT | Areal Flood Advisory | MRX | 6 hr |
| Sep 18, 8:22 AM EDT | Areal Flood Warning | MRX | 3 hr |
| Oct 1, 6:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Oct 1, 8:06 PM EDT | Tornado Watch | SPC | 3 hr |
| Oct 10, 3:06 AM EDT | Frost Advisory | MRX | 30 hr |
| Oct 28, 3:13 AM EDT | Wind Advisory | MRX | 65 hr |
| Oct 28, 3:39 AM EDT | Frost Advisory | MRX | 12 hr |
| Oct 31, 4:14 AM EDT | Freeze Watch | MRX | 11 hr |
| Oct 31, 3:02 PM EDT | Freeze Warning | MRX | 18 hr |
| Nov 4, 9:52 PM EST | Frost Advisory | MRX | 11 hr |
| Nov 8, 3:19 PM EST | Freeze Warning | MRX | 17 hr |
| Dec 20, 3:31 AM EST | Wind Advisory | MRX | 39 hr |
| Dec 24, 3:29 PM EST | Dense Fog Advisory | MRX | 19 hr |
| Dec 25, 3:13 PM EST | Wind Advisory | MRX | 37 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 23 |
| Tornado Warning | 6 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 36 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| Flood Watch | 2 |
| Areal Flood Advisory | 16 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 7 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
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.