Alert archive / Tennessee / Bradley County
Weather alerts in Bradley County, Tennessee, 2018
135 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Bradley County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 135
- Warnings
- 43
- Watches
- 11
- Advisories
- 32
- Busiest month
- June33 alerts
- Busiest day
- July 21, 201818 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 2 tornado warnings covering Bradley County in 2018 had a tornado report inside them.
Bradley County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 26 | 21 | 19% | 8 | 75% | 23 min |
| Flash flood warnings | 4 | 3 | 25% | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Morristown, TN: tornado warnings | 8 | 0 | 100% | 0 | ||
| NWS Morristown, TN: severe thunderstorm warnings | 210 | 162 | 23% | 267 | 84% | 22 min |
| NWS Morristown, TN: flash flood warnings | 37 | 27 | 27% | 35 | 83% | 73 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 7, 4:06 AM EST | Winter Weather Advisory | MRX | 37 hr |
| Jan 8, 4:20 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 15, 10:08 AM EST | Winter Weather Advisory | MRX | 45 hr |
| Feb 9, 3:46 AM EST | Flood Watch | MRX | 63 hr |
| Feb 10, 10:03 PM EST | Areal Flood Advisory | MRX | 10 hr |
| Feb 25, 3:55 AM EST | Special Weather Statement | MRX | 65 min |
| Feb 25, 4:55 AM EST | Special Weather Statement | MRX | 65 min |
| Feb 27, 4:03 AM EST | Flood Watch | MRX | 63 hr |
| Feb 28, 4:45 PM EST | Areal Flood Warning | MRX | 9 hr |
| Mar 1, 10:45 AM EST | Areal Flood Advisory | MRX | 3 hr |
| Mar 17, 6:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Mar 17, 7:21 PM EDT | Severe Thunderstorm Warning | MRX | 39 min |
| Mar 17, 7:59 PM EDT | Severe Thunderstorm Warning | MRX | 46 min |
| Mar 19, 6:23 PM EDT | Special Weather Statement | MRX | 37 min |
| Mar 20, 4:13 AM EDT | Dense Fog Advisory | MRX | 6 hr |
| Mar 21, 3:40 AM EDT | Freeze Warning | MRX | 30 hr |
| Apr 3, 9:50 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 3, 11:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Apr 4, 1:15 AM EDT | Severe Thunderstorm Warning | MRX | 45 min |
| Apr 4, 2:04 AM EDT | Severe Thunderstorm Warning | MRX | 26 min |
| Apr 4, 4:32 AM EDT | Freeze Warning | MRX | 28 hr |
| Apr 7, 3:28 AM EDT | Freeze Warning | MRX | 31 hr |
| Apr 16, 4:28 AM EDT | Freeze Watch | MRX | 11 hr |
| Apr 16, 4:28 AM EDT | Freeze Warning | MRX | 29 hr |
| Apr 22, 9:40 AM EDT | Wind Advisory | MRX | 40 hr |
| Apr 23, 8:29 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| May 5, 6:12 PM EDT | Special Weather Statement | MRX | 48 min |
| May 10, 2:21 PM EDT | Special Weather Statement | MRX | 39 min |
| May 10, 2:59 PM EDT | Special Weather Statement | MRX | 46 min |
| May 15, 5:32 PM EDT | Areal Flood Advisory | MRX | 118 min |
| May 15, 5:37 PM EDT | Special Weather Statement | MRX | 38 min |
| May 15, 5:45 PM EDT | Special Weather Statement | MRX | 45 min |
| May 15, 5:58 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| May 22, 8:24 PM EDT | Areal Flood Advisory | MRX | 111 min |
| May 26, 10:58 PM EDT | Special Weather Statement | MRX | 47 min |
| May 27, 10:34 PM EDT | Areal Flood Advisory | MRX | 116 min |
| May 28, 4:20 AM EDT | Flash Flood Watch | MRX | 64 hr |
| May 29, 2:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| May 31, 2:28 PM EDT | Special Weather Statement | MRX | 32 min |
| May 31, 2:47 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| May 31, 3:16 PM EDT | Areal Flood Warning | MRX | 89 min |
| May 31, 10:46 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 3, 3:13 PM EDT | Special Weather Statement | MRX | 47 min |
| Jun 3, 3:17 PM EDT | Severe Thunderstorm Warning | MRX | 25 min |
| Jun 3, 3:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 3, 3:49 PM EDT | Areal Flood Advisory | MRX | 116 min |
| Jun 11, 1:52 PM EDT | Special Weather Statement | MRX | 38 min |
| Jun 11, 2:25 PM EDT | Special Weather Statement | MRX | 50 min |
| Jun 11, 2:53 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 17, 6:12 PM EDT | Special Weather Statement | MRX | 33 min |
| Jun 22, 1:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 23, 11:32 AM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 23, 12:09 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 23, 1:54 PM EDT | Severe Thunderstorm Warning | MRX | 51 min |
| Jun 23, 2:36 PM EDT | Severe Thunderstorm Warning | MRX | 39 min |
| Jun 24, 1:44 PM EDT | Severe Thunderstorm Warning | MRX | 31 min |
| Jun 24, 5:04 PM EDT | Severe Thunderstorm Warning | MRX | 56 min |
| Jun 24, 5:29 PM EDT | Special Weather Statement | MRX | 46 min |
| Jun 24, 5:44 PM EDT | Severe Thunderstorm Warning | MRX | 25 min |
| Jun 25, 1:30 PM EDT | Special Weather Statement | MRX | 45 min |
| Jun 26, 6:25 PM EDT | Severe Thunderstorm Warning | MRX | 65 min |
| Jun 26, 7:17 PM EDT | Severe Thunderstorm Warning | MRX | 58 min |
| Jun 27, 2:29 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 27, 7:13 PM EDT | Special Weather Statement | MRX | 47 min |
| Jun 27, 7:30 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| Jun 27, 8:24 PM EDT | Severe Thunderstorm Warning | MRX | 51 min |
| Jun 28, 9:59 AM EDT | Severe Thunderstorm Warning | MRX | 61 min |
| Jun 28, 10:15 AM EDT | Severe Thunderstorm Warning | MRX | 60 min |
| Jun 28, 10:45 AM EDT | Special Weather Statement | MRX | 15 min |
| Jun 28, 10:49 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 28, 11:22 AM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 30, 6:34 PM EDT | Special Weather Statement | MRX | 26 min |
| Jun 30, 6:55 PM EDT | Special Weather Statement | MRX | 35 min |
| Jun 30, 7:22 PM EDT | Severe Thunderstorm Warning | MRX | 54 min |
| Jul 3, 7:17 PM EDT | Special Weather Statement | MRX | 43 min |
| Jul 4, 8:19 PM EDT | Special Weather Statement | MRX | 41 min |
| Jul 4, 9:18 PM EDT | Special Weather Statement | MRX | 42 min |
| Jul 6, 4:17 PM EDT | Special Weather Statement | MRX | 43 min |
| Jul 16, 4:25 PM EDT | Special Weather Statement | MRX | 50 min |
| Jul 16, 8:46 PM EDT | Special Weather Statement | MRX | 44 min |
| Jul 16, 9:11 PM EDT | Special Weather Statement | MRX | 49 min |
| Jul 17, 4:03 PM EDT | Areal Flood Advisory | MRX | 117 min |
| Jul 19, 7:32 PM EDT | Areal Flood Advisory | MRX | 118 min |
| Jul 20, 8:02 PM EDT | Tornado Watch | SPC | 7 hr |
| Jul 20, 10:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jul 20, 11:42 PM EDT | Severe Thunderstorm Warning | MRX | 48 min |
| Jul 21, 12:24 AM EDT | Severe Thunderstorm Warning | MRX | 51 min |
| Jul 21, 1:28 AM EDT | Severe Thunderstorm Warning | MRX | 47 min |
| Jul 21, 2:02 AM EDT | Severe Thunderstorm Warning | MRX | 28 min |
| Jul 21, 2:38 AM EDT | Mesoscale Discussion | SPC | 67 min |
| Jul 21, 2:39 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 21, 3:00 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 21, 3:36 AM EDT | Areal Flood Warning | MRX | 3 hr |
| Jul 21, 4:05 AM EDT | Severe Thunderstorm Warning | MRX | 40 min |
| Jul 21, 4:33 AM EDT | Areal Flood Advisory | MRX | 117 min |
| Jul 21, 7:24 AM EDT | Special Weather Statement | MRX | 36 min |
| Jul 21, 3:37 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 5:12 PM EDT | Special Weather Statement | MRX | 63 min |
| Jul 21, 5:19 PM EDT | Severe Thunderstorm Warning | MRX | 56 min |
| Jul 21, 5:49 PM EDT | Special Weather Statement | MRX | 26 min |
| Jul 21, 5:53 PM EDT | Severe Thunderstorm Warning | MRX | 37 min |
| Jul 31, 4:23 PM EDT | Areal Flood Warning | MRX | 3 hr |
| Aug 1, 10:52 AM EDT | Areal Flood Advisory | MRX | 6 hr |
| Aug 2, 12:32 PM EDT | Areal Flood Advisory | MRX | 5 hr |
| Aug 8, 3:51 PM EDT | Special Weather Statement | MRX | 39 min |
| Aug 9, 3:45 PM EDT | Special Weather Statement | MRX | 45 min |
| Aug 17, 9:18 PM EDT | Special Weather Statement | MRX | 42 min |
| Aug 17, 9:55 PM EDT | Special Weather Statement | MRX | 50 min |
| Sep 1, 2:20 PM EDT | Areal Flood Advisory | MRX | 115 min |
| Sep 1, 2:23 PM EDT | Severe Thunderstorm Warning | MRX | 52 min |
| Sep 2, 5:22 PM EDT | Special Weather Statement | MRX | 38 min |
| Sep 6, 2:33 PM EDT | Special Weather Statement | MRX | 42 min |
| Sep 10, 1:18 PM EDT | Areal Flood Advisory | MRX | 117 min |
| Sep 24, 1:25 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Sep 24, 3:37 PM EDT | Flash Flood Warning | MRX | 3 hr |
| Sep 24, 10:36 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Sep 24, 11:53 PM EDT | Flash Flood Warning | MRX | 3 hr |
| Sep 26, 3:54 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Sep 26, 4:23 AM EDT | Flash Flood Watch | MRX | 40 hr |
| Sep 26, 12:13 PM EDT | Flash Flood Warning | MRX | 7 hr |
| Sep 27, 12:42 PM EDT | Areal Flood Warning | MRX | 6 hr |
| Sep 27, 1:49 PM EDT | Flash Flood Warning | MRX | 5 hr |
| Oct 21, 3:35 AM EDT | Frost Advisory | MRX | 29 hr |
| Nov 1, 1:50 PM EDT | Tornado Warning | MRX | 25 min |
| Nov 6, 2:40 AM EST | Mesoscale Discussion | SPC | 65 min |
| Nov 6, 3:15 AM EST | Tornado Watch | SPC | 5 hr |
| Nov 6, 4:00 AM EST | Severe Thunderstorm Warning | MRX | 45 min |
| Nov 6, 4:39 AM EST | Tornado Warning | MRX | 36 min |
| Nov 6, 4:44 AM EST | Severe Thunderstorm Warning | MRX | 61 min |
| Nov 8, 11:04 AM EST | Freeze Warning | MRX | 47 hr |
| Nov 10, 12:35 PM EST | Freeze Warning | MRX | 21 hr |
| Dec 17, 4:45 AM EST | Dense Fog Advisory | MRX | 5 hr |
| Dec 26, 3:42 PM EST | Flash Flood Watch | MRX | 48 hr |
| Dec 28, 7:13 AM EST | Areal Flood Advisory | MRX | 3 hr |
| Dec 28, 9:57 PM EST | Dense Fog Advisory | MRX | 10 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 | 26 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 13 |
| Special Weather Statement | 36 |
| Flooding | |
| Areal Flood Warning | 5 |
| Flash Flood Warning | 4 |
| Flash Flood Watch | 3 |
| Flood Watch | 2 |
| Areal Flood Advisory | 25 |
| Winter | |
| Winter Weather Advisory | 2 |
| Cold | |
| Freeze Warning | 6 |
| Freeze Watch | 1 |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.