Alert archive / Tennessee / Washington County
Weather alerts in Washington County, Tennessee, 2013
97 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Washington County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 97
- Warnings
- 31
- Watches
- 18
- Advisories
- 38
- Busiest month
- January19 alerts
- Busiest day
- June 13, 201312 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Washington County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 14 | 0% | 4 | 100% | 35 min |
| Flash flood warnings | 3 | 3 | 0% | 2 | 100% | 8 min |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Morristown, TN: tornado warnings | 8 | 2 | 75% | 2 | 50% | 38 min |
| NWS Morristown, TN: severe thunderstorm warnings | 153 | 105 | 31% | 161 | 83% | 22 min |
| NWS Morristown, TN: flash flood warnings | 24 | 16 | 33% | 26 | 96% | 45 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 11, 5:18 AM EST | Wind Advisory | MRX | 6 hr |
| Jan 13, 3:24 PM EST | Flood Watch | MRX | 4 days |
| Jan 15, 9:24 AM EST | Areal Flood Advisory | MRX | 7 hr |
| Jan 15, 4:19 PM EST | Areal Flood Warning | MRX | 14 hr |
| Jan 16, 4:06 AM EST | Areal Flood Warning | MRX | 8 hr |
| Jan 16, 8:11 PM EST | Winter Storm Watch | MRX | 8 hr |
| Jan 17, 4:09 AM EST | Winter Weather Advisory | MRX | 17 hr |
| Jan 17, 12:38 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 17, 1:47 PM EST | Wind Advisory | MRX | 7 hr |
| Jan 23, 4:03 PM EST | Winter Storm Watch | MRX | 23 hr |
| Jan 24, 2:09 PM EST | Winter Weather Advisory | MRX | 25 hr |
| Jan 25, 6:40 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 29, 11:45 AM EST | Wind Advisory | MRX | 28 hr |
| Jan 30, 5:51 AM EST | Tornado Watch | SPC | 7 hr |
| Jan 30, 7:38 AM EST | Mesoscale Discussion | SPC | 97 min |
| Jan 30, 11:36 AM EST | Flood Watch | MRX | 10 hr |
| Jan 30, 2:25 PM EST | Areal Flood Advisory | MRX | 4 hr |
| Jan 30, 6:02 PM EST | Areal Flood Warning | MRX | 6 hr |
| Jan 31, 4:05 AM EST | Winter Weather Advisory | MRX | 29 hr |
| Feb 1, 3:15 PM EST | Winter Weather Advisory | MRX | 47 hr |
| Feb 9, 3:21 PM EST | High Wind Watch | MRX | 12 hr |
| Feb 10, 3:19 AM EST | High Wind Warning | MRX | 24 hr |
| Feb 18, 3:35 AM EST | High Wind Watch | MRX | 12 hr |
| Feb 18, 3:37 PM EST | High Wind Warning | MRX | 15 hr |
| Feb 24, 3:39 PM EST | High Wind Watch | MRX | 12 hr |
| Feb 25, 3:48 AM EST | High Wind Warning | MRX | 36 hr |
| Mar 5, 4:21 AM EST | Winter Weather Advisory | MRX | 35 hr |
| Mar 5, 3:28 PM EST | Wind Advisory | MRX | 21 hr |
| Mar 5, 4:53 PM EST | Areal Flood Advisory | MRX | 3 hr |
| Mar 10, 4:02 AM EDT | Wind Advisory | MRX | 44 hr |
| Mar 24, 3:45 PM EDT | Wind Advisory | MRX | 28 hr |
| Mar 25, 3:38 AM EDT | Winter Weather Advisory | MRX | 38 hr |
| Mar 26, 3:01 AM EDT | Freeze Watch | MRX | 24 hr |
| Mar 26, 3:01 AM EDT | Freeze Warning | MRX | 31 hr |
| Mar 27, 3:28 AM EDT | Freeze Watch | MRX | 24 hr |
| Mar 27, 3:28 AM EDT | Freeze Warning | MRX | 31 hr |
| Mar 28, 3:40 AM EDT | Freeze Warning | MRX | 29 hr |
| Apr 1, 5:10 AM EDT | Dense Fog Advisory | MRX | 4 hr |
| Apr 1, 3:21 PM EDT | Freeze Watch | MRX | 24 hr |
| Apr 2, 3:15 PM EDT | Freeze Warning | MRX | 18 hr |
| Apr 11, 6:36 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 11, 9:19 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Apr 11, 11:54 PM EDT | Severe Thunderstorm Warning | MRX | 66 min |
| Apr 19, 2:38 PM EDT | Frost Advisory | MRX | 18 hr |
| Apr 20, 3:00 PM EDT | Frost Advisory | MRX | 18 hr |
| Apr 25, 3:15 AM EDT | Frost Advisory | MRX | 31 hr |
| May 4, 10:12 PM EDT | Wind Advisory | MRX | 17 hr |
| May 9, 5:16 AM EDT | Dense Fog Advisory | MRX | 5 hr |
| May 12, 2:42 PM EDT | Frost Advisory | MRX | 18 hr |
| May 13, 8:56 PM EDT | Frost Advisory | MRX | 12 hr |
| May 21, 3:26 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 21, 7:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| May 21, 8:01 PM EDT | Severe Thunderstorm Warning | MRX | 59 min |
| May 21, 8:38 PM EDT | Flash Flood Warning | MRX | 4 hr |
| May 22, 2:59 PM EDT | Severe Thunderstorm Warning | MRX | 61 min |
| May 22, 3:30 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| May 22, 4:32 PM EDT | Severe Thunderstorm Warning | MRX | 43 min |
| Jun 5, 6:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 10, 3:02 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 11:38 AM EDT | Mesoscale Discussion | SPC | 67 min |
| Jun 13, 12:19 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 1:00 PM EDT | Severe Thunderstorm Warning | MRX | 45 min |
| Jun 13, 1:28 PM EDT | Severe Thunderstorm Warning | MRX | 62 min |
| Jun 13, 1:33 PM EDT | Severe Thunderstorm Warning | MRX | 57 min |
| Jun 13, 1:40 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 2:23 PM EDT | Severe Thunderstorm Warning | MRX | 22 min |
| Jun 13, 2:48 PM EDT | Severe Thunderstorm Warning | MRX | 27 min |
| Jun 13, 2:49 PM EDT | Severe Thunderstorm Warning | MRX | 41 min |
| Jun 13, 3:10 PM EDT | Severe Thunderstorm Warning | MRX | 65 min |
| Jun 13, 3:21 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 13, 3:42 PM EDT | Flash Flood Warning | MRX | 4 hr |
| Jun 26, 2:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 26, 10:55 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 27, 1:20 AM EDT | Areal Flood Advisory | MRX | 115 min |
| Jul 2, 4:27 AM EDT | Flood Watch | MRX | 6 days |
| Jul 3, 5:13 PM EDT | Areal Flood Advisory | MRX | 6 hr |
| Jul 3, 8:11 PM EDT | Areal Flood Warning | MRX | 8 hr |
| Jul 17, 4:47 PM EDT | Severe Thunderstorm Warning | MRX | 28 min |
| Jul 17, 5:50 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 17, 6:32 PM EDT | Flash Flood Warning | MRX | 3 hr |
| Jul 18, 4:50 PM EDT | Severe Thunderstorm Warning | MRX | 25 min |
| Jul 18, 5:17 PM EDT | Severe Thunderstorm Warning | MRX | 28 min |
| Jul 19, 10:48 PM EDT | Areal Flood Advisory | MRX | 117 min |
| Aug 10, 4:58 PM EDT | Areal Flood Advisory | MRX | 62 min |
| Aug 13, 11:27 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 21, 1:26 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 22, 4:46 AM EDT | Dense Fog Advisory | MRX | 5 hr |
| Aug 31, 11:55 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 6, 6:23 AM EDT | Dense Fog Advisory | MRX | 7 min |
| Sep 6, 6:30 AM EDT | Dense Fog Advisory | MRX | 3 hr |
| Oct 17, 10:23 PM EDT | Dense Fog Advisory | MRX | 12 hr |
| Oct 20, 9:11 PM EDT | Frost Advisory | MRX | 12 hr |
| Oct 23, 3:46 AM EDT | Freeze Warning | MRX | 28 hr |
| Oct 24, 3:54 AM EDT | Freeze Warning | MRX | 30 hr |
| Oct 31, 3:00 AM EDT | Wind Advisory | MRX | 28 hr |
| Nov 1, 12:32 AM EDT | High Wind Warning | MRX | 6 hr |
| Nov 26, 3:37 AM EST | Winter Weather Advisory | MRX | 30 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 | 14 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 10 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 3 |
| Flood Watch | 3 |
| Areal Flood Advisory | 11 |
| Winter | |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 7 |
| Cold | |
| Freeze Warning | 6 |
| Freeze Watch | 3 |
| Frost Advisory | 6 |
| Wind and dust | |
| High Wind Warning | 4 |
| High Wind Watch | 3 |
| Wind Advisory | 8 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20122014
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.