Alert archive / Tennessee / DeKalb County
Weather alerts in DeKalb County, Tennessee, 2022
144 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
DeKalb County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 144
- Warnings
- 33
- Watches
- 12
- Advisories
- 53
- Busiest month
- July27 alerts
- Busiest day
- July 21, 20228 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 DeKalb County in 2022 had a tornado report inside them.
DeKalb County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 21 | 15 | 29% | 3 | 0% | |
| Flash flood warnings | 2 | 1 | 50% | 1 | 0% |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Nashville, TN: tornado warnings | 10 | 0 | 100% | 1 | 0% | |
| NWS Nashville, TN: severe thunderstorm warnings | 159 | 83 | 48% | 303 | 70% | 18 min |
| NWS Nashville, TN: flash flood warnings | 16 | 6 | 63% | 26 | 77% | 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Dec 31, 9:31 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 1, 10:27 AM CST | Wind Advisory | OHX | 6 hr |
| Jan 1, 12:38 PM CST | Mesoscale Discussion | SPC | 97 min |
| Jan 1, 12:56 PM CST | Tornado Watch | SPC | 6 hr |
| Jan 2, 3:09 AM CST | Winter Weather Advisory | OHX | 24 hr |
| Jan 2, 6:19 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 5, 10:53 AM CST | Winter Weather Advisory | OHX | 27 hr |
| Jan 5, 9:05 PM CST | Winter Storm Warning | OHX | 23 hr |
| Jan 6, 4:47 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 6, 11:21 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 9, 11:33 AM CST | Areal Flood Advisory | OHX | 3 hr |
| Jan 14, 2:47 AM CST | Winter Storm Watch | OHX | 35 hr |
| Jan 15, 2:15 PM CST | Winter Storm Warning | OHX | 34 hr |
| Jan 18, 4:29 AM CST | Freezing Fog Advisory | OHX | 5 hr |
| Feb 2, 1:50 AM CST | Flood Watch | OHX | 41 hr |
| Feb 2, 2:50 PM CST | Winter Weather Advisory | OHX | 39 hr |
| Feb 3, 4:17 PM CST | Areal Flood Advisory | OHX | 3 hr |
| Feb 4, 6:05 AM CST | Winter Weather Advisory | OHX | 5 hr |
| Feb 11, 1:16 PM CST | Red Flag Warning | OHX | 7 hr |
| Feb 16, 3:01 AM CST | Wind Advisory | OHX | 42 hr |
| Feb 17, 5:00 PM CST | Special Weather Statement | OHX | 45 min |
| Feb 17, 5:19 PM CST | Areal Flood Advisory | OHX | 3 hr |
| Feb 17, 5:32 PM CST | Mesoscale Discussion | SPC | 88 min |
| Feb 17, 5:34 PM CST | Special Weather Statement | OHX | 41 min |
| Feb 21, 3:08 AM CST | Flood Watch | OHX | 51 hr |
| Feb 22, 11:39 AM CST | Special Weather Statement | OHX | 51 min |
| Feb 22, 11:41 AM CST | Areal Flood Advisory | OHX | 3 hr |
| Feb 23, 1:41 PM CST | Flood Watch | OHX | 37 hr |
| Feb 24, 8:05 AM CST | Areal Flood Advisory | OHX | 5 hr |
| Mar 7, 1:53 AM CST | Wind Advisory | OHX | 10 hr |
| Mar 10, 1:51 PM CST | Winter Storm Watch | OHX | 13 hr |
| Mar 11, 2:35 AM CST | Winter Storm Warning | OHX | 26 hr |
| Mar 11, 8:24 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Mar 16, 11:28 PM CDT | Dense Fog Advisory | OHX | 153 days |
| Mar 22, 2:41 AM CDT | Wind Advisory | OHX | 19 hr |
| Mar 23, 12:06 PM CDT | Wind Advisory | OHX | 7 hr |
| Mar 29, 3:36 AM CDT | Wind Advisory | OHX | 47 hr |
| Mar 30, 7:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Mar 30, 9:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Mar 30, 10:30 PM CDT | Special Weather Statement | OHX | 45 min |
| Mar 30, 11:01 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 30, 11:33 PM CDT | Severe Thunderstorm Warning | OHX | 42 min |
| Apr 1, 3:44 AM CDT | Frost Advisory | OHX | 28 hr |
| Apr 6, 12:02 AM CDT | Dense Fog Advisory | OHX | 5 hr |
| Apr 6, 12:59 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 8, 2:44 PM CDT | Frost Advisory | OHX | 11 hr |
| Apr 9, 2:09 PM CDT | Freeze Warning | OHX | 18 hr |
| Apr 13, 7:52 PM CDT | Severe Thunderstorm Warning | OHX | 38 min |
| Apr 13, 8:24 PM CDT | Severe Thunderstorm Warning | OHX | 36 min |
| Apr 13, 8:26 PM CDT | Tornado Warning | OHX | 34 min |
| Apr 13, 8:27 PM CDT | Severe Thunderstorm Warning | OHX | 33 min |
| Apr 13, 8:55 PM CDT | Severe Thunderstorm Warning | OHX | 35 min |
| Apr 15, 10:11 PM CDT | Special Weather Statement | OHX | 34 min |
| Apr 18, 1:04 AM CDT | Special Weather Statement | OHX | 41 min |
| Apr 18, 10:42 PM CDT | Frost Advisory | OHX | 10 hr |
| May 5, 4:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 6, 1:06 PM CDT | Mesoscale Discussion | SPC | 69 min |
| May 6, 1:36 PM CDT | Special Weather Statement | OHX | 24 min |
| May 6, 1:57 PM CDT | Severe Thunderstorm Warning | OHX | 33 min |
| May 6, 2:17 PM CDT | Severe Thunderstorm Warning | OHX | 28 min |
| May 18, 1:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 21, 9:05 PM CDT | Special Weather Statement | OHX | 40 min |
| May 25, 5:03 PM CDT | Mesoscale Discussion | SPC | 117 min |
| May 26, 10:36 AM CDT | Mesoscale Discussion | SPC | 114 min |
| May 26, 1:11 PM CDT | Special Weather Statement | OHX | 34 min |
| May 26, 2:54 PM CDT | Special Weather Statement | OHX | 51 min |
| Jun 2, 11:08 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Jun 7, 4:58 AM CDT | Areal Flood Advisory | OHX | 6 hr |
| Jun 7, 4:29 PM CDT | Special Weather Statement | OHX | 31 min |
| Jun 7, 4:58 PM CDT | Special Weather Statement | OHX | 32 min |
| Jun 7, 5:19 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Jun 7, 5:43 PM CDT | Flash Flood Warning | OHX | 3 hr |
| Jun 12, 2:42 AM CDT | Heat Advisory | OHX | 40 hr |
| Jun 13, 2:10 AM CDT | Heat Advisory | OHX | 36 hr |
| Jun 14, 2:42 AM CDT | Heat Advisory | OHX | 64 hr |
| Jun 17, 8:48 AM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 17, 9:01 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 17, 10:56 AM CDT | Severe Thunderstorm Warning | OHX | 34 min |
| Jun 17, 11:06 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 17, 11:22 AM CDT | Special Weather Statement | OHX | 38 min |
| Jul 3, 12:37 PM CDT | Special Weather Statement | OHX | 23 min |
| Jul 4, 12:13 PM CDT | Heat Advisory | OHX | 4 days |
| Jul 6, 12:53 PM CDT | Severe Thunderstorm Warning | OHX | 25 min |
| Jul 6, 1:17 PM CDT | Special Weather Statement | OHX | 43 min |
| Jul 7, 12:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 7, 2:27 PM CDT | Special Weather Statement | OHX | 33 min |
| Jul 7, 2:47 PM CDT | Severe Thunderstorm Warning | OHX | 30 min |
| Jul 7, 3:10 PM CDT | Severe Thunderstorm Warning | OHX | 35 min |
| Jul 8, 3:47 PM CDT | Severe Thunderstorm Warning | OHX | 43 min |
| Jul 9, 3:25 AM CDT | Severe Thunderstorm Warning | OHX | 50 min |
| Jul 12, 2:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 12, 5:06 PM CDT | Severe Thunderstorm Warning | OHX | 28 min |
| Jul 12, 5:32 PM CDT | Severe Thunderstorm Warning | OHX | 25 min |
| Jul 12, 5:55 PM CDT | Severe Thunderstorm Warning | OHX | 34 min |
| Jul 19, 3:04 AM CDT | Heat Advisory | OHX | 40 hr |
| Jul 21, 1:04 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 21, 2:30 AM CDT | Severe Thunderstorm Warning | OHX | 45 min |
| Jul 21, 3:06 AM CDT | Severe Thunderstorm Warning | OHX | 39 min |
| Jul 21, 3:30 AM CDT | Severe Thunderstorm Warning | OHX | 45 min |
| Jul 21, 3:33 AM CDT | Areal Flood Advisory | OHX | 3 hr |
| Jul 21, 4:08 AM CDT | Severe Thunderstorm Warning | OHX | 37 min |
| Jul 21, 4:09 AM CDT | Areal Flood Advisory | OHX | 3 hr |
| Jul 21, 5:09 AM CDT | Areal Flood Advisory | OHX | 2 hr |
| Jul 22, 2:04 PM CDT | Heat Advisory | OHX | 29 hr |
| Jul 26, 1:18 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 28, 4:25 PM CDT | Special Weather Statement | OHX | 35 min |
| Jul 28, 5:10 PM CDT | Severe Thunderstorm Warning | OHX | 35 min |
| Aug 3, 4:26 PM CDT | Special Weather Statement | OHX | 49 min |
| Aug 6, 2:59 PM CDT | Special Weather Statement | OHX | 46 min |
| Aug 8, 2:41 PM CDT | Special Weather Statement | OHX | 34 min |
| Aug 10, 1:08 PM CDT | Areal Flood Advisory | OHX | 2 hr |
| Aug 10, 1:12 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Aug 20, 3:34 PM CDT | Special Weather Statement | OHX | 41 min |
| Aug 31, 4:51 AM CDT | Dense Fog Advisory | OHX | 3 hr |
| Sep 3, 1:58 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Sep 3, 9:02 PM CDT | Special Weather Statement | OHX | 28 min |
| Sep 3, 9:41 PM CDT | Areal Flood Advisory | OHX | 2 hr |
| Sep 3, 10:29 PM CDT | Flash Flood Warning | OHX | 3 hr |
| Sep 3, 11:23 PM CDT | Areal Flood Advisory | OHX | 116 min |
| Sep 4, 1:18 AM CDT | Areal Flood Advisory | OHX | 3 hr |
| Sep 4, 2:30 AM CDT | Flood Watch | OHX | 41 hr |
| Sep 11, 4:16 PM CDT | Areal Flood Advisory | OHX | 119 min |
| Sep 25, 3:03 PM CDT | Special Weather Statement | OHX | 27 min |
| Sep 25, 3:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Oct 8, 2:32 AM CDT | Frost Advisory | OHX | 30 hr |
| Oct 9, 2:07 PM CDT | Frost Advisory | OHX | 18 hr |
| Oct 12, 3:56 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Oct 12, 4:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Oct 16, 2:46 AM CDT | Freeze Watch | OHX | 11 hr |
| Oct 16, 1:30 PM CDT | Freeze Warning | OHX | 44 hr |
| Oct 18, 1:33 AM CDT | Freeze Warning | OHX | 31 hr |
| Oct 19, 2:00 PM CDT | Freeze Warning | OHX | 19 hr |
| Oct 24, 2:28 PM CDT | Wind Advisory | OHX | 29 hr |
| Nov 4, 1:56 PM CDT | Wind Advisory | OHX | 28 hr |
| Nov 7, 5:40 AM CST | Dense Fog Advisory | OHX | 2 hr |
| Nov 25, 11:40 PM CST | Dense Fog Advisory | OHX | 8 hr |
| Nov 26, 7:33 PM CST | Wind Advisory | OHX | 19 hr |
| Dec 7, 11:10 AM CST | Areal Flood Advisory | OHX | 6 hr |
| Dec 7, 11:50 AM CST | Areal Flood Advisory | OHX | 3 hr |
| Dec 9, 7:56 PM CST | Dense Fog Advisory | OHX | 13 hr |
| Dec 20, 9:49 AM CST | Wind Chill Watch | OHX | 17 hr |
| Dec 21, 2:19 AM CST | Wind Chill Warning | OHX | 3 days |
| Dec 21, 2:42 PM CST | Winter Weather Advisory | OHX | 39 hr |
| Dec 23, 1:23 AM CST | Wind Chill Advisory | OHX | 35 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 | 21 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 23 |
| Special Weather Statement | 23 |
| Flooding | |
| Flash Flood Warning | 2 |
| Flood Watch | 4 |
| Areal Flood Advisory | 20 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 5 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 4 |
| Wind Chill Warning | 1 |
| Freeze Watch | 1 |
| Wind Chill Watch | 1 |
| Frost Advisory | 5 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20212023
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.