Alert archive / Tennessee / Clay County
Weather alerts in Clay County, Tennessee, 2015
131 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Clay County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 131
- Warnings
- 29
- Watches
- 22
- Advisories
- 33
- Busiest month
- July37 alerts
- Busiest day
- July 3, 20158 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 1 tornado warnings covering Clay County in 2015 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 2 minutes after it went out.
Clay County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 1 | 0% | 1 | 100% | 2 min |
| Severe thunderstorm warnings | 11 | 6 | 45% | 7 | 100% | 28 min |
| Flash flood warnings | 3 | 3 | 0% | 2 | 100% | 62 min |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Nashville, TN: tornado warnings | 28 | 6 | 79% | 20 | 50% | 9 min |
| NWS Nashville, TN: severe thunderstorm warnings | 171 | 89 | 48% | 318 | 70% | 17 min |
| NWS Nashville, TN: flash flood warnings | 20 | 12 | 40% | 35 | 71% | 59 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 3, 3:08 AM CST | Flash Flood Watch | OHX | 18 hr |
| Jan 7, 2:41 AM CST | Wind Chill Advisory | OHX | 30 hr |
| Jan 13, 8:34 PM CST | Freezing Rain Advisory | OHX | 12 hr |
| Jan 23, 2:48 PM CST | Winter Weather Advisory | OHX | 15 hr |
| Feb 14, 10:03 AM CST | Wind Chill Advisory | OHX | 23 hr |
| Feb 14, 10:03 AM CST | Winter Storm Watch | OHX | 17 hr |
| Feb 15, 3:11 AM CST | Winter Storm Warning | OHX | 35 hr |
| Feb 16, 2:57 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 16, 8:54 AM CST | Ice Storm Warning | OHX | 24 hr |
| Feb 17, 3:40 PM CST | Winter Weather Advisory | OHX | 26 hr |
| Feb 18, 8:43 AM CST | Wind Chill Advisory | OHX | 27 hr |
| Feb 18, 2:54 PM CST | Winter Storm Watch | OHX | 23 hr |
| Feb 19, 1:33 PM CST | Winter Storm Warning | OHX | 15 hr |
| Feb 20, 4:05 AM CST | Ice Storm Warning | OHX | 29 hr |
| Feb 20, 2:02 PM CST | Flood Watch | OHX | 46 hr |
| Feb 20, 10:22 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 21, 11:05 AM CST | Wind Advisory | OHX | 7 hr |
| Feb 21, 11:55 AM CST | Areal Flood Advisory | OHX | 6 hr |
| Feb 21, 5:36 PM CST | Areal Flood Advisory | OHX | 10 hr |
| Feb 22, 3:41 AM CST | Areal Flood Advisory | OHX | 8 hr |
| Feb 24, 2:16 PM CST | Winter Weather Advisory | OHX | 37 hr |
| Mar 2, 2:34 PM CST | Winter Storm Watch | OHX | 25 hr |
| Mar 2, 2:50 PM CST | Flood Watch | OHX | 44 hr |
| Mar 3, 3:14 PM CST | Winter Storm Warning | OHX | 45 hr |
| Mar 4, 4:16 PM CST | Areal Flood Warning | OHX | 6 hr |
| Mar 4, 7:28 PM CST | Areal Flood Advisory | OHX | 3 hr |
| Mar 5, 4:57 AM CST | Wind Chill Advisory | OHX | 27 hr |
| Mar 12, 4:07 AM CDT | Dense Fog Advisory | OHX | 4 hr |
| Mar 26, 12:41 PM CDT | Freeze Watch | OHX | 15 hr |
| Mar 27, 3:50 AM CDT | Hard Freeze Watch | OHX | 24 hr |
| Mar 27, 3:50 AM CDT | Hard Freeze Warning | OHX | 30 hr |
| Mar 28, 3:48 AM CDT | Hard Freeze Warning | OHX | 30 hr |
| Apr 2, 5:06 AM CDT | Special Weather Statement | OHX | 39 min |
| Apr 2, 5:03 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Apr 3, 3:47 AM CDT | Wind Advisory | OHX | 18 hr |
| Apr 3, 11:56 AM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 3, 2:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Apr 3, 3:10 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 4, 2:41 AM CDT | Freeze Warning | OHX | 29 hr |
| Apr 8, 1:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 10, 1:54 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Apr 10, 3:02 AM CDT | Severe Thunderstorm Warning | OHX | 28 min |
| Apr 10, 3:09 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 10, 3:27 AM CDT | Severe Thunderstorm Warning | OHX | 33 min |
| Apr 10, 3:54 AM CDT | Severe Thunderstorm Warning | OHX | 51 min |
| Apr 19, 4:23 PM CDT | Special Weather Statement | OHX | 37 min |
| Apr 19, 4:26 PM CDT | Severe Thunderstorm Warning | OHX | 49 min |
| Apr 20, 1:09 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 20, 2:11 AM CDT | Special Weather Statement | OHX | 64 min |
| Apr 20, 2:19 AM CDT | Severe Thunderstorm Warning | OHX | 41 min |
| Apr 20, 2:36 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Apr 23, 1:57 PM CDT | Frost Advisory | OHX | 18 hr |
| Apr 25, 6:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| May 26, 4:38 PM CDT | Special Weather Statement | OHX | 112 min |
| May 26, 4:39 PM CDT | Special Weather Statement | OHX | 111 min |
| Jun 8, 12:08 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 8, 12:57 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 8, 3:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 9, 5:01 AM CDT | Dense Fog Advisory | OHX | 3 hr |
| Jun 26, 2:08 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 26, 6:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 29, 5:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 29, 5:41 PM CDT | Special Weather Statement | OHX | 49 min |
| Jun 29, 6:30 PM CDT | Special Weather Statement | OHX | 45 min |
| Jun 29, 7:48 PM CDT | Severe Thunderstorm Warning | OHX | 42 min |
| Jun 30, 11:55 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 30, 12:47 PM CDT | Severe Thunderstorm Warning | OHX | 28 min |
| Jun 30, 6:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jul 1, 11:29 AM CDT | Mesoscale Discussion | SPC | 61 min |
| Jul 1, 11:45 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 2, 11:59 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 5:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 2, 6:31 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Jul 2, 6:57 PM CDT | Special Weather Statement | OHX | 33 min |
| Jul 2, 7:28 PM CDT | Flash Flood Warning | OHX | 2 hr |
| Jul 2, 9:30 PM CDT | Areal Flood Warning | OHX | 3 hr |
| Jul 2, 9:54 PM CDT | Flash Flood Watch | OHX | 57 hr |
| Jul 3, 12:40 AM CDT | Areal Flood Warning | OHX | 3 hr |
| Jul 3, 7:07 AM CDT | Flash Flood Warning | OHX | 3 hr |
| Jul 3, 10:06 AM CDT | Areal Flood Warning | OHX | 6 hr |
| Jul 3, 4:45 PM CDT | Special Weather Statement | OHX | 45 min |
| Jul 3, 4:51 PM CDT | Special Weather Statement | OHX | 39 min |
| Jul 4, 7:15 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Jul 4, 10:40 PM CDT | Areal Flood Advisory | OHX | 65 min |
| Jul 7, 6:30 PM CDT | Special Weather Statement | OHX | 30 min |
| Jul 12, 12:37 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 12, 3:35 PM CDT | Special Weather Statement | OHX | 55 min |
| Jul 12, 4:24 PM CDT | Severe Thunderstorm Warning | OHX | 51 min |
| Jul 12, 4:51 PM CDT | Flash Flood Warning | OHX | 3 hr |
| Jul 13, 11:01 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 13, 4:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 13, 5:55 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 13, 6:57 PM CDT | Severe Thunderstorm Warning | OHX | 63 min |
| Jul 13, 7:16 PM CDT | Tornado Warning | OHX | 29 min |
| Jul 13, 7:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 14, 12:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 14, 1:40 PM CDT | Severe Thunderstorm Warning | OHX | 39 min |
| Jul 14, 1:46 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 14, 2:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 14, 7:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 14, 9:34 PM CDT | Special Weather Statement | OHX | 56 min |
| Jul 14, 10:52 PM CDT | Areal Flood Advisory | OHX | 113 min |
| Jul 18, 1:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 20, 1:05 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 29, 9:39 PM CDT | Special Weather Statement | OHX | 21 min |
| Aug 8, 2:40 AM CDT | Dense Fog Advisory | OHX | 5 hr |
| Aug 19, 3:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 9, 1:48 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Oct 12, 8:56 PM CDT | Special Weather Statement | OHX | 49 min |
| Oct 16, 1:42 PM CDT | Frost Advisory | OHX | 18 hr |
| Oct 17, 1:57 AM CDT | Frost Advisory | OHX | 31 hr |
| Oct 17, 2:49 PM CDT | Freeze Warning | OHX | 18 hr |
| Oct 18, 2:03 AM CDT | Frost Advisory | OHX | 30 hr |
| Nov 3, 12:18 AM CST | Dense Fog Advisory | OHX | 11 hr |
| Nov 6, 3:03 AM CST | Mesoscale Discussion | SPC | 117 min |
| Nov 6, 4:59 AM CST | Special Weather Statement | OHX | 31 min |
| Nov 12, 1:16 PM CST | Freeze Watch | OHX | 14 hr |
| Nov 13, 3:29 AM CST | Freeze Warning | OHX | 30 hr |
| Nov 17, 3:37 AM CST | Wind Advisory | OHX | 32 hr |
| Nov 30, 3:07 AM CST | Flood Watch | OHX | 45 hr |
| Dec 9, 10:00 PM CST | Dense Fog Advisory | OHX | 10 hr |
| Dec 13, 2:34 AM CST | Wind Advisory | OHX | 27 hr |
| Dec 23, 4:26 PM CST | Mesoscale Discussion | SPC | 64 min |
| Dec 23, 10:33 PM CST | Tornado Watch | SPC | 5 hr |
| Dec 23, 10:50 PM CST | Severe Thunderstorm Warning | OHX | 25 min |
| Dec 24, 8:47 PM CST | Flood Watch | OHX | 33 hr |
| Dec 25, 8:59 AM CST | Areal Flood Advisory | OHX | 3 hr |
| Dec 25, 11:59 AM CST | Areal Flood Advisory | OHX | 3 hr |
| Dec 27, 1:04 PM CST | Flash Flood Watch | OHX | 29 hr |
| Dec 28, 1:30 AM CST | Wind Advisory | OHX | 17 hr |
| Dec 28, 3:41 PM CST | Areal Flood Advisory | OHX | 3 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 archive20142016
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.