Alert archive / Tennessee / Carter County
Weather alerts in Carter County, Tennessee, 2020
138 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Carter County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 138
- Warnings
- 33
- Watches
- 17
- Advisories
- 54
- Busiest month
- April26 alerts
- Busiest day
- July 23, 20207 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Carter County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 9 | 18% | 1 | 100% | 13 min |
| Flash flood warnings | 2 | 2 | 0% | 3 | 100% | 29 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Morristown, TN: tornado warnings | 13 | 5 | 62% | 6 | 83% | 6 min |
| NWS Morristown, TN: severe thunderstorm warnings | 158 | 129 | 18% | 243 | 81% | 21 min |
| NWS Morristown, TN: flash flood warnings | 22 | 18 | 18% | 33 | 82% | 42 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 4, 3:40 AM EST | Winter Weather Advisory | MRX | 27 hr |
| Jan 9, 3:22 AM EST | Wind Advisory | MRX | 28 hr |
| Jan 9, 9:01 PM EST | High Wind Watch | MRX | 18 hr |
| Jan 10, 2:39 PM EST | High Wind Warning | MRX | 34 hr |
| Jan 10, 2:39 PM EST | Wind Advisory | MRX | 34 hr |
| Jan 11, 6:36 PM EST | Mesoscale Discussion | SPC | 84 min |
| Jan 11, 6:39 PM EST | Severe Thunderstorm Warning | MRX | 51 min |
| Jan 11, 7:16 PM EST | Severe Thunderstorm Warning | MRX | 44 min |
| Jan 18, 3:10 AM EST | Wind Advisory | MRX | 22 hr |
| Jan 22, 3:28 PM EST | High Wind Watch | MRX | 12 hr |
| Jan 23, 3:12 AM EST | High Wind Warning | MRX | 37 hr |
| Jan 27, 3:20 AM EST | Winter Weather Advisory | MRX | 24 hr |
| Feb 4, 3:46 PM EST | Flash Flood Watch | MRX | 47 hr |
| Feb 5, 2:42 PM EST | Wind Advisory | MRX | 18 hr |
| Feb 6, 12:32 AM EST | Areal Flood Advisory | MRX | 3 hr |
| Feb 6, 3:57 AM EST | Areal Flood Warning | MRX | 15 hr |
| Feb 6, 3:21 PM EST | Winter Weather Advisory | MRX | 24 hr |
| Feb 6, 6:34 PM EST | Areal Flood Warning | MRX | 18 hr |
| Feb 7, 3:28 AM EST | Wind Advisory | MRX | 15 hr |
| Feb 7, 2:57 PM EST | Winter Weather Advisory | MRX | 25 hr |
| Feb 11, 3:11 PM EST | High Wind Warning | MRX | 36 hr |
| Feb 12, 10:42 PM EST | Special Weather Statement | MRX | 48 min |
| Feb 19, 11:44 AM EST | Winter Weather Advisory | MRX | 34 hr |
| Feb 26, 3:31 AM EST | Winter Weather Advisory | MRX | 30 hr |
| Feb 27, 3:05 PM EST | Winter Weather Advisory | MRX | 44 hr |
| Mar 3, 5:54 AM EST | Special Weather Statement | MRX | 51 min |
| Mar 3, 7:52 AM EST | Areal Flood Advisory | MRX | 3 hr |
| Mar 5, 3:21 PM EST | Winter Weather Advisory | MRX | 36 hr |
| Mar 18, 3:59 AM EDT | Dense Fog Advisory | MRX | 6 hr |
| Mar 29, 7:06 AM EDT | Severe Thunderstorm Warning | MRX | 39 min |
| Apr 8, 7:48 PM EDT | Special Weather Statement | MRX | 42 min |
| Apr 8, 9:00 PM EDT | Special Weather Statement | MRX | 45 min |
| Apr 8, 11:16 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 9, 3:17 AM EDT | Special Weather Statement | MRX | 43 min |
| Apr 9, 3:13 PM EDT | Freeze Watch | MRX | 12 hr |
| Apr 10, 3:35 AM EDT | Freeze Warning | MRX | 30 hr |
| Apr 10, 3:32 PM EDT | High Wind Watch | MRX | 24 hr |
| Apr 11, 3:05 PM EDT | High Wind Warning | MRX | 40 hr |
| Apr 11, 9:32 PM EDT | Wind Advisory | MRX | 42 hr |
| Apr 13, 2:03 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Apr 13, 3:05 AM EDT | Areal Flood Warning | MRX | 3 hr |
| Apr 13, 4:09 AM EDT | Flash Flood Warning | MRX | 3 hr |
| Apr 13, 7:13 AM EDT | Areal Flood Warning | MRX | 2 hr |
| Apr 13, 9:14 AM EDT | Areal Flood Warning | MRX | 6 hr |
| Apr 15, 3:24 PM EDT | Frost Advisory | MRX | 18 hr |
| Apr 16, 3:34 PM EDT | Frost Advisory | MRX | 18 hr |
| Apr 21, 2:35 AM EDT | Wind Advisory | MRX | 19 hr |
| Apr 21, 3:21 AM EDT | Frost Advisory | MRX | 31 hr |
| Apr 22, 3:16 PM EDT | High Wind Warning | MRX | 29 hr |
| Apr 23, 7:54 PM EDT | Wind Advisory | MRX | 6 hr |
| Apr 25, 10:27 PM EDT | Special Weather Statement | MRX | 48 min |
| Apr 25, 11:09 PM EDT | Special Weather Statement | MRX | 66 min |
| Apr 28, 2:58 PM EDT | Wind Advisory | MRX | 31 hr |
| Apr 29, 6:32 PM EDT | Areal Flood Advisory | MRX | 4 hr |
| Apr 29, 7:16 PM EDT | Special Weather Statement | MRX | 74 min |
| Apr 29, 10:27 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| May 5, 7:25 PM EDT | Severe Thunderstorm Warning | MRX | 35 min |
| May 6, 3:30 PM EDT | Frost Advisory | MRX | 18 hr |
| May 7, 3:51 AM EDT | Freeze Watch | MRX | 24 hr |
| May 8, 3:56 AM EDT | Freeze Warning | MRX | 30 hr |
| May 9, 3:26 AM EDT | Freeze Warning | MRX | 31 hr |
| May 11, 2:56 AM EDT | Frost Advisory | MRX | 29 hr |
| May 19, 3:01 AM EDT | Wind Advisory | MRX | 24 hr |
| May 20, 3:46 PM EDT | Flash Flood Watch | MRX | 11 hr |
| May 23, 2:58 AM EDT | Dense Fog Advisory | MRX | 7 hr |
| May 24, 1:44 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 4, 4:26 PM EDT | Special Weather Statement | MRX | 49 min |
| Jun 4, 4:30 PM EDT | Severe Thunderstorm Warning | MRX | 30 min |
| Jun 4, 5:00 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| Jun 14, 12:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jun 14, 1:35 PM EDT | Special Weather Statement | MRX | 40 min |
| Jun 14, 1:50 PM EDT | Severe Thunderstorm Warning | MRX | 55 min |
| Jun 14, 2:06 PM EDT | Severe Thunderstorm Warning | MRX | 54 min |
| Jun 19, 3:33 PM EDT | Special Weather Statement | MRX | 27 min |
| Jun 20, 8:45 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| Jun 30, 2:45 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 30, 6:04 PM EDT | Special Weather Statement | MRX | 56 min |
| Jul 4, 4:58 PM EDT | Special Weather Statement | MRX | 47 min |
| Jul 5, 3:04 PM EDT | Special Weather Statement | MRX | 26 min |
| Jul 17, 1:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 17, 9:40 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| Jul 19, 5:28 PM EDT | Special Weather Statement | MRX | 47 min |
| Jul 20, 12:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 1:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 23, 1:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 23, 2:37 PM EDT | Special Weather Statement | MRX | 38 min |
| Jul 23, 2:44 PM EDT | Special Weather Statement | MRX | 31 min |
| Jul 23, 3:09 PM EDT | Severe Thunderstorm Warning | MRX | 36 min |
| Jul 23, 3:25 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| Jul 23, 5:40 PM EDT | Special Weather Statement | MRX | 50 min |
| Jul 23, 5:46 PM EDT | Severe Thunderstorm Warning | MRX | 44 min |
| Jul 24, 6:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 24, 6:44 PM EDT | Severe Thunderstorm Warning | MRX | 61 min |
| Jul 25, 6:50 PM EDT | Special Weather Statement | MRX | 25 min |
| Jul 25, 7:25 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| Jul 25, 7:27 PM EDT | Special Weather Statement | MRX | 33 min |
| Jul 25, 7:34 PM EDT | Flash Flood Warning | MRX | 3 hr |
| Jul 30, 4:58 PM EDT | Special Weather Statement | MRX | 47 min |
| Jul 31, 7:43 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 31, 7:52 PM EDT | Severe Thunderstorm Warning | MRX | 38 min |
| Aug 2, 2:18 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Aug 5, 1:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 12, 2:16 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 14, 2:57 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| Aug 15, 2:51 PM EDT | Areal Flood Advisory | MRX | 114 min |
| Aug 23, 8:06 PM EDT | Areal Flood Advisory | MRX | 114 min |
| Aug 28, 5:22 PM EDT | Special Weather Statement | MRX | 38 min |
| Oct 2, 3:07 PM EDT | Frost Advisory | MRX | 18 hr |
| Oct 15, 3:22 PM EDT | Freeze Watch | MRX | 24 hr |
| Oct 16, 3:12 AM EDT | Frost Advisory | MRX | 31 hr |
| Oct 16, 3:10 PM EDT | Freeze Warning | MRX | 19 hr |
| Oct 28, 3:52 AM EDT | Flash Flood Watch | MRX | 30 hr |
| Oct 28, 10:47 AM EDT | High Wind Watch | MRX | 5 hr |
| Oct 28, 10:47 AM EDT | Wind Advisory | MRX | 28 hr |
| Oct 28, 3:24 PM EDT | High Wind Warning | MRX | 21 hr |
| Oct 30, 3:18 PM EDT | Frost Advisory | MRX | 18 hr |
| Oct 30, 3:18 PM EDT | Freeze Watch | MRX | 37 hr |
| Nov 1, 3:16 AM EST | Freeze Warning | MRX | 30 hr |
| Nov 11, 2:05 PM EST | Flood Watch | MRX | 15 hr |
| Nov 12, 1:14 AM EST | Areal Flood Advisory | MRX | 3 hr |
| Nov 12, 3:16 AM EST | Areal Flood Warning | MRX | 2 hr |
| Nov 14, 4:04 AM EST | Wind Advisory | MRX | 39 hr |
| Nov 24, 5:21 PM EST | Wind Advisory | MRX | 32 hr |
| Nov 28, 3:48 AM EST | High Wind Watch | MRX | 24 hr |
| Nov 29, 3:46 AM EST | Wind Advisory | MRX | 23 hr |
| Nov 29, 3:55 PM EST | Winter Storm Watch | MRX | 12 hr |
| Nov 30, 3:43 AM EST | Winter Storm Warning | MRX | 32 hr |
| Dec 6, 2:33 AM EST | Freezing Fog Advisory | MRX | 7 hr |
| Dec 6, 3:23 PM EST | Winter Weather Advisory | MRX | 33 hr |
| Dec 22, 3:38 AM EST | High Wind Watch | MRX | 24 hr |
| Dec 23, 3:40 AM EST | High Wind Warning | MRX | 30 hr |
| Dec 23, 3:49 AM EST | Winter Storm Watch | MRX | 10 hr |
| Dec 23, 2:14 PM EST | Winter Storm Warning | MRX | 38 hr |
| Dec 23, 11:37 PM EST | Wind Advisory | MRX | 10 hr |
| Dec 24, 3:45 AM EST | Wind Chill Advisory | MRX | 53 hr |
| Dec 24, 2:28 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 25, 3:48 AM EST | Winter Weather Advisory | MRX | 11 hr |
| Dec 29, 1:41 AM EST | Dense Fog Advisory | MRX | 6 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 | 11 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 12 |
| Special Weather Statement | 22 |
| Flooding | |
| Areal Flood Warning | 6 |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 3 |
| Flood Watch | 1 |
| Areal Flood Advisory | 16 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 10 |
| Cold | |
| Freeze Warning | 5 |
| Freeze Watch | 4 |
| Frost Advisory | 8 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 7 |
| High Wind Watch | 6 |
| Wind Advisory | 15 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.