Alert archive / Tennessee / Perry County
Weather alerts in Perry County, Tennessee, 2013
138 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Perry County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 138
- Warnings
- 26
- Watches
- 16
- Advisories
- 54
- Busiest month
- January27 alerts
- Busiest day
- January 30, 20137 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
3 of 3 tornado warnings covering Perry County in 2013 had a tornado report inside them.
Perry County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 3 | 0% | 0 | ||
| Severe thunderstorm warnings | 9 | 5 | 44% | 4 | 75% | 9 min |
| Flash flood warnings | 3 | 2 | 33% | 0 |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Nashville, TN: tornado warnings | 50 | 16 | 68% | 40 | 83% | 17 min |
| NWS Nashville, TN: severe thunderstorm warnings | 157 | 91 | 42% | 346 | 70% | 20 min |
| NWS Nashville, TN: flash flood warnings | 35 | 19 | 46% | 97 | 77% | 160 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 12, 3:59 AM CST | Flash Flood Watch | OHX | 42 hr |
| Jan 13, 5:14 AM CST | Flash Flood Warning | OHX | 6 hr |
| Jan 13, 9:30 AM CST | Severe Thunderstorm Warning | OHX | 45 min |
| Jan 13, 9:51 AM CST | Severe Thunderstorm Warning | OHX | 24 min |
| Jan 13, 10:50 AM CST | Flash Flood Warning | OHX | 4 hr |
| Jan 13, 1:58 PM CST | River Flood Advisory | OHX | 36 hr |
| Jan 13, 3:38 PM CST | Areal Flood Warning | OHX | 6 hr |
| Jan 14, 1:11 AM CST | River Flood Warning | OHX | 18 hr |
| Jan 14, 10:44 AM CST | Winter Weather Advisory | OHX | 44 hr |
| Jan 15, 8:01 AM CST | River Flood Advisory | OHX | 3 days |
| Jan 15, 10:05 AM CST | Ice Storm Warning | OHX | 20 hr |
| Jan 15, 10:48 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 15, 12:03 PM CST | River Flood Advisory | OHX | 14 days |
| Jan 15, 7:51 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 15, 8:44 PM CST | River Flood Advisory | MEG | 23 hr |
| Jan 16, 8:02 PM CST | River Flood Warning | MEG | 8 days |
| Jan 18, 7:00 PM CST | River Flood Warning | OHX | 48 hr |
| Jan 24, 5:13 AM CST | Winter Weather Advisory | OHX | 33 hr |
| Jan 24, 11:01 AM CST | River Flood Advisory | MEG | 4 days |
| Jan 29, 3:57 AM CST | Wind Advisory | OHX | 41 hr |
| Jan 29, 9:49 PM CST | Mesoscale Discussion | SPC | 116 min |
| Jan 29, 10:07 PM CST | Tornado Watch | SPC | 6 hr |
| Jan 30, 1:53 AM CST | Tornado Warning | OHX | 37 min |
| Jan 30, 2:05 AM CST | Severe Thunderstorm Warning | OHX | 55 min |
| Jan 30, 2:23 AM CST | Tornado Warning | OHX | 37 min |
| Jan 30, 2:33 AM CST | Tornado Warning | OHX | 42 min |
| Jan 30, 3:03 AM CST | Mesoscale Discussion | SPC | 57 min |
| Feb 1, 3:24 PM CST | Winter Weather Advisory | OHX | 43 hr |
| Feb 9, 3:21 PM CST | Wind Advisory | OHX | 24 hr |
| Feb 18, 3:42 AM CST | Wind Advisory | OHX | 20 hr |
| Feb 25, 3:33 AM CST | Wind Advisory | OHX | 19 hr |
| Mar 5, 3:49 AM CST | Wind Advisory | OHX | 20 hr |
| Mar 5, 8:31 AM CST | Special Weather Statement | OHX | 44 min |
| Mar 9, 5:42 PM CST | Wind Advisory | OHX | 26 hr |
| Mar 18, 7:40 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 18, 8:09 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 24, 2:24 AM CDT | Wind Advisory | OHX | 35 hr |
| Mar 24, 12:14 PM CDT | Special Weather Statement | OHX | 2 hr |
| Mar 30, 3:37 AM CDT | Dense Fog Advisory | OHX | 5 hr |
| Mar 31, 9:53 PM CDT | Dense Fog Advisory | OHX | 11 hr |
| Apr 5, 2:02 AM CDT | Dense Fog Advisory | OHX | 7 hr |
| Apr 11, 9:33 AM CDT | Special Weather Statement | OHX | 27 min |
| Apr 11, 7:45 PM CDT | River Flood Advisory | OHX | 59 hr |
| Apr 12, 2:02 PM CDT | Frost Advisory | OHX | 18 hr |
| Apr 17, 9:30 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 18, 2:49 AM CDT | Wind Advisory | OHX | 27 hr |
| Apr 18, 8:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 18, 10:22 PM CDT | Special Weather Statement | OHX | 98 min |
| Apr 19, 1:37 PM CDT | Frost Advisory | OHX | 18 hr |
| Apr 24, 3:16 PM CDT | Frost Advisory | OHX | 16 hr |
| Apr 27, 1:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 27, 3:06 PM CDT | Flash Flood Watch | OHX | 19 hr |
| Apr 27, 7:45 PM CDT | River Flood Advisory | OHX | 49 hr |
| Apr 27, 10:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 27, 10:48 PM CDT | Severe Thunderstorm Warning | OHX | 27 min |
| Apr 27, 11:37 PM CDT | Flash Flood Warning | OHX | 6 hr |
| Apr 28, 8:45 PM CDT | River Flood Advisory | MEG | 36 hr |
| Apr 29, 9:34 AM CDT | River Flood Advisory | OHX | 7 days |
| Apr 29, 8:48 PM CDT | River Flood Warning | MEG | 16 days |
| May 3, 3:45 AM CDT | Flood Watch | OHX | 56 hr |
| May 3, 9:47 AM CDT | Wind Advisory | OHX | 12 hr |
| May 4, 10:35 AM CDT | River Flood Advisory | OHX | 41 hr |
| May 6, 4:15 PM CDT | River Flood Warning | OHX | 7 days |
| May 7, 12:46 AM CDT | Dense Fog Advisory | OHX | 7 hr |
| May 10, 7:02 PM CDT | River Flood Advisory | OHX | 54 min |
| May 12, 3:07 AM CDT | Frost Advisory | OHX | 29 hr |
| May 13, 7:05 AM CDT | River Flood Advisory | OHX | 60 hr |
| May 15, 12:41 PM CDT | River Flood Advisory | MEG | 56 hr |
| May 21, 7:47 AM CDT | Mesoscale Discussion | SPC | 58 min |
| May 21, 11:21 AM CDT | Special Weather Statement | OHX | 39 min |
| May 21, 11:55 AM CDT | Special Weather Statement | OHX | 50 min |
| May 21, 6:23 PM CDT | Mesoscale Discussion | SPC | 67 min |
| May 21, 8:28 PM CDT | Special Weather Statement | OHX | 62 min |
| Jun 1, 2:53 PM CDT | Special Weather Statement | OHX | 67 min |
| Jun 8, 12:36 AM CDT | Dense Fog Advisory | OHX | 8 hr |
| Jun 9, 5:03 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 9, 7:30 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 10, 1:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 10, 1:56 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 13, 12:19 PM CDT | Mesoscale Discussion | SPC | 26 min |
| Jun 13, 12:40 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 17, 9:49 PM CDT | Flash Flood Watch | OHX | 8 hr |
| Jun 26, 8:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 26, 9:55 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 26, 11:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 27, 12:12 AM CDT | Special Weather Statement | OHX | 33 min |
| Jun 27, 12:45 AM CDT | Special Weather Statement | OHX | 45 min |
| Jun 27, 12:59 AM CDT | Special Weather Statement | OHX | 61 min |
| Jun 27, 1:05 AM CDT | Severe Thunderstorm Warning | OHX | 40 min |
| Jul 3, 2:05 PM CDT | Flash Flood Watch | OHX | 4 days |
| Jul 5, 9:41 PM CDT | River Flood Advisory | MEG | 72 hr |
| Jul 6, 4:50 PM CDT | River Flood Advisory | OHX | 7 days |
| Jul 8, 9:22 PM CDT | River Flood Warning | MEG | 8 days |
| Jul 13, 8:43 AM CDT | River Flood Warning | OHX | 22 hr |
| Jul 14, 7:04 AM CDT | River Flood Advisory | OHX | 3 days |
| Jul 16, 10:24 AM CDT | River Flood Advisory | MEG | 68 hr |
| Jul 23, 8:16 AM CDT | Special Weather Statement | OHX | 59 min |
| Jul 23, 9:06 AM CDT | Special Weather Statement | OHX | 54 min |
| Jul 31, 5:01 PM CDT | Areal Flood Advisory | OHX | 119 min |
| Aug 7, 6:36 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Aug 8, 3:04 PM CDT | Areal Flood Advisory | OHX | 116 min |
| Aug 11, 1:36 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Aug 12, 1:15 PM CDT | Flash Flood Watch | OHX | 14 hr |
| Aug 12, 3:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Aug 19, 5:09 AM CDT | Dense Fog Advisory | OHX | 4 hr |
| Aug 21, 5:23 PM CDT | Special Weather Statement | OHX | 52 min |
| Aug 23, 6:20 PM CDT | Severe Thunderstorm Warning | OHX | 40 min |
| Sep 26, 1:25 AM CDT | Dense Fog Advisory | OHX | 8 hr |
| Oct 18, 12:55 AM CDT | Dense Fog Advisory | OHX | 8 hr |
| Oct 18, 3:32 PM CDT | Frost Advisory | OHX | 39 hr |
| Oct 20, 3:27 PM CDT | Frost Advisory | OHX | 17 hr |
| Oct 23, 3:07 AM CDT | Freeze Watch | OHX | 23 hr |
| Oct 24, 2:30 AM CDT | Freeze Warning | OHX | 31 hr |
| Oct 25, 3:16 AM CDT | Freeze Warning | OHX | 30 hr |
| Oct 28, 3:00 PM CDT | Dense Fog Advisory | OHX | 18 hr |
| Oct 30, 8:19 PM CDT | Wind Advisory | OHX | 29 hr |
| Oct 31, 7:39 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Oct 31, 7:54 PM CDT | Tornado Watch | SPC | 5 hr |
| Nov 11, 1:50 PM CST | Wind Advisory | OHX | 28 hr |
| Nov 16, 3:29 PM CST | Wind Advisory | OHX | 30 hr |
| Nov 17, 6:31 PM CST | Mesoscale Discussion | SPC | 59 min |
| Nov 17, 6:58 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Nov 26, 5:01 AM CST | Winter Weather Advisory | OHX | 22 hr |
| Dec 4, 12:11 PM CST | Winter Storm Watch | OHX | 23 hr |
| Dec 5, 10:54 AM CST | Winter Weather Advisory | OHX | 34 hr |
| Dec 6, 11:31 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 6, 3:02 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Dec 7, 3:41 AM CST | Winter Weather Advisory | OHX | 29 hr |
| Dec 8, 1:28 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 9, 2:36 PM CST | Winter Weather Advisory | OHX | 15 hr |
| Dec 20, 3:23 PM CST | Wind Advisory | OHX | 34 hr |
| Dec 21, 5:06 PM CST | Mesoscale Discussion | SPC | 84 min |
| Dec 21, 5:46 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 21, 7:40 PM CST | Mesoscale Discussion | SPC | 95 min |
| Dec 21, 7:53 PM CST | Severe Thunderstorm Warning | OHX | 22 min |
| Dec 21, 8:09 PM CST | Severe Thunderstorm Warning | OHX | 36 min |
| Dec 21, 8:39 PM CST | Severe Thunderstorm Warning | OHX | 36 min |
| Dec 21, 10:33 PM CST | Mesoscale Discussion | SPC | 87 min |
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 | 9 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 28 |
| Special Weather Statement | 14 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 3 |
| River Flood Warning | 7 |
| Flash Flood Watch | 5 |
| Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| River Flood Advisory | 17 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 7 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 6 |
| Wind and dust | |
| Wind Advisory | 13 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20122014
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.