Alert archive / Tennessee / Clay County
Weather alerts in Clay County, Tennessee, 2008
92 weather alerts in 2008, 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 2008. Tap one for its archive.
- Alerts
- 92
- Warnings
- 16
- Watches
- 14
- Advisories
- 36
- Busiest month
- January18 alerts
- Busiest day
- January 10, 20085 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Clay County in 2008 had a tornado report inside them.
Clay County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 6 | 3 | 50% | 6 | 50% | 14 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Nashville, TN: tornado warnings | 59 | 18 | 69% | 39 | 92% | 17 min |
| NWS Nashville, TN: severe thunderstorm warnings | 183 | 52 | 72% | 152 | 49% | 11 min |
| NWS Nashville, TN: flash flood warnings | 5 | 1 | 80% | 2 | 50% | 18 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 1, 5:41 AM CST | Lake Wind Advisory | OHX | 15 hr |
| Jan 8, 4:00 AM CST | Lake Wind Advisory | OHX | 20 hr |
| Jan 8, 5:51 PM CST | Mesoscale Discussion | SPC | 54 min |
| Jan 8, 6:36 PM CST | Tornado Watch | SPC | 6 hr |
| Jan 10, 7:52 AM CST | Mesoscale Discussion | SPC | 113 min |
| Jan 10, 11:33 AM CST | Tornado Watch | SPC | 9 hr |
| Jan 10, 3:05 PM CST | Mesoscale Discussion | SPC | 115 min |
| Jan 10, 3:42 PM CST | Mesoscale Discussion | SPC | 93 min |
| Jan 10, 4:20 PM CST | Severe Thunderstorm Warning | OHX | 40 min |
| Jan 16, 3:19 PM CST | Winter Weather Advisory | OHX | 12 hr |
| Jan 21, 3:28 PM CST | Winter Weather Advisory | OHX | 11 hr |
| Jan 25, 3:10 PM CST | Winter Weather Advisory | OHX | 19 hr |
| Jan 29, 3:53 AM CST | Wind Advisory | OHX | 15 hr |
| Jan 29, 5:53 PM CST | High Wind Warning | OHX | 4 hr |
| Jan 29, 6:30 PM CST | Mesoscale Discussion | SPC | 60 min |
| Jan 29, 7:12 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Jan 29, 8:12 PM CST | Severe Thunderstorm Warning | OHX | 33 min |
| Jan 29, 9:16 PM CST | Wind Advisory | OHX | 6 hr |
| Jan 31, 10:11 PM CST | Wind Advisory | OHX | 4 hr |
| Feb 5, 9:19 PM CST | Mesoscale Discussion | SPC | 86 min |
| Feb 6, 2:41 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 6, 11:59 AM CST | Lake Wind Advisory | OHX | 6 hr |
| Feb 12, 3:09 PM CST | Winter Weather Advisory | OHX | 16 hr |
| Feb 12, 7:09 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 16, 4:13 PM CST | Lake Wind Advisory | OHX | 9 hr |
| Feb 17, 12:53 AM CST | Wind Advisory | OHX | 23 hr |
| Feb 21, 6:15 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 26, 4:08 AM CST | Snow Advisory | OHX | 34 hr |
| Feb 26, 4:13 AM CST | Lake Wind Advisory | OHX | 14 hr |
| Mar 3, 4:17 AM CST | Lake Wind Advisory | OHX | 23 hr |
| Mar 4, 9:38 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 5, 3:54 PM CST | Winter Storm Watch | OHX | 44 hr |
| Mar 7, 3:00 AM CST | Winter Storm Warning | OHX | 33 hr |
| Mar 7, 9:05 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Mar 15, 12:16 PM CDT | Areal Flood Advisory | OHX | 119 days |
| Mar 18, 8:56 AM CDT | Wind Advisory | OHX | 27 hr |
| Mar 19, 1:37 PM CDT | Severe Thunderstorm Warning | OHX | 38 min |
| Mar 25, 7:18 AM CDT | Red Flag Warning | OHX | 14 hr |
| Mar 25, 2:09 PM CDT | Red Flag Warning | OHX | 7 hr |
| Mar 29, 10:07 AM CDT | Areal Flood Advisory | OHX | 114 days |
| Apr 2, 3:34 PM CDT | Flood Watch | OHX | 46 hr |
| Apr 4, 1:28 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 4, 5:16 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 4, 9:53 AM CDT | Areal Flood Advisory | OHX | 116 days |
| Apr 5, 2:51 PM CDT | Dense Fog Advisory | OHX | 18 hr |
| Apr 9, 3:31 PM CDT | Wind Advisory | OHX | 32 hr |
| Apr 11, 2:15 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 11, 10:15 AM CDT | Tornado Watch | SPC | 5 hr |
| Apr 11, 12:00 PM CDT | Tornado Warning | OHX | 19 min |
| Apr 11, 12:12 PM CDT | Areal Flood Advisory | OHX | 109 days |
| Apr 11, 1:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 13, 3:00 PM CDT | Freeze Watch | OHX | 24 hr |
| Apr 14, 2:45 PM CDT | Freeze Warning | OHX | 17 hr |
| Apr 29, 3:22 PM CDT | Frost Advisory | OHX | 16 hr |
| May 1, 7:40 AM CDT | Red Flag Warning | OHX | 11 hr |
| May 2, 4:43 PM CDT | Tornado Watch | SPC | 7 hr |
| May 9, 6:18 PM CDT | Mesoscale Discussion | SPC | 57 min |
| May 11, 3:52 AM CDT | Wind Advisory | OHX | 18 hr |
| May 26, 12:10 PM CDT | Mesoscale Discussion | SPC | 65 min |
| May 31, 5:19 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 1, 1:20 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 1, 1:36 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 9, 8:36 PM CDT | Severe Thunderstorm Warning | OHX | 9 min |
| Jun 12, 1:10 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jun 15, 3:34 AM CDT | Dense Fog Advisory | OHX | 4 hr |
| Jun 28, 7:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jul 4, 12:29 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 12:04 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jul 12, 1:17 PM CDT | Severe Thunderstorm Warning | OHX | 28 min |
| Jul 21, 2:44 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 21, 3:33 PM CDT | Severe Thunderstorm Warning | OHX | 27 min |
| Jul 22, 11:55 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 28, 1:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 30, 2:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 25, 12:54 PM CDT | Flash Flood Watch | OHX | 26 hr |
| Sep 7, 1:03 AM CDT | Dense Fog Advisory | OHX | 6 hr |
| Sep 13, 3:50 PM CDT | Wind Advisory | OHX | 24 hr |
| Oct 18, 8:29 PM CDT | Frost Advisory | OHX | 12 hr |
| Oct 19, 3:08 PM CDT | Frost Advisory | OHX | 17 hr |
| Oct 25, 3:23 PM CDT | Freeze Watch | OHX | 46 hr |
| Oct 26, 3:01 PM CDT | Freeze Watch | OHX | 22 hr |
| Oct 27, 12:24 PM CDT | Freeze Warning | OHX | 21 hr |
| Oct 27, 12:24 PM CDT | Freeze Warning | OHX | 45 hr |
| Oct 28, 3:30 PM CDT | Freeze Warning | OHX | 42 hr |
| Dec 9, 9:20 PM CST | Flood Watch | OHX | 9 hr |
| Dec 11, 3:55 PM CST | Winter Weather Advisory | OHX | 11 hr |
| Dec 14, 4:58 AM CST | Wind Advisory | OHX | 13 hr |
| Dec 15, 4:00 AM CST | Freezing Rain Advisory | OHX | 32 hr |
| Dec 18, 12:12 AM CST | Dense Fog Advisory | OHX | 8 hr |
| Dec 18, 5:33 PM CST | Dense Fog Advisory | OHX | 10 hr |
| Dec 24, 3:35 AM CST | Wind Advisory | OHX | 12 hr |
| Dec 27, 3:13 AM CST | Wind Advisory | OHX | 21 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 | 6 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 26 |
| Flooding | |
| Flash Flood Watch | 1 |
| Flood Watch | 2 |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 1 |
| Snow Advisory | 1 |
| Winter Weather Advisory | 5 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 3 |
| Frost Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 1 |
| Lake Wind Advisory | 6 |
| Wind Advisory | 11 |
| Fire | |
| Red Flag Warning | 3 |
| 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 archive20072009
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.