Alert archive / Missouri / Jefferson County
Weather alerts in Jefferson County, Missouri, 2017
101 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Jefferson County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 101
- Warnings
- 33
- Watches
- 16
- Advisories
- 21
- Busiest month
- March14 alerts
- Busiest day
- February 28, 20178 alerts
Over time
By month
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, 8:54 PM CST | Dense Fog Advisory | LSX | 12 hr |
| Jan 2, 5:43 PM CST | Dense Fog Advisory | LSX | 13 hr |
| Jan 4, 3:24 AM CST | Winter Weather Advisory | LSX | 33 hr |
| Jan 10, 3:31 AM CST | Wind Advisory | LSX | 14 hr |
| Jan 11, 3:31 AM CST | Winter Storm Watch | LSX | 34 hr |
| Jan 12, 1:49 PM CST | Ice Storm Warning | LSX | 70 hr |
| Jan 13, 10:28 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 14, 2:14 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 15, 2:02 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 15, 10:41 PM CST | Dense Fog Advisory | LSX | 13 hr |
| Jan 19, 3:37 PM CST | Dense Fog Advisory | LSX | 20 hr |
| Feb 16, 3:37 AM CST | Red Flag Warning | LSX | 14 hr |
| Feb 19, 1:24 AM CST | Dense Fog Advisory | LSX | 10 hr |
| Feb 21, 10:42 PM CST | Dense Fog Advisory | LSX | 10 hr |
| Feb 28, 1:46 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 28, 2:19 PM CST | Tornado Watch | SPC | 7 hr |
| Feb 28, 3:38 PM CST | Severe Thunderstorm Warning | LSX | 52 min |
| Feb 28, 4:41 PM CST | Severe Thunderstorm Warning | LSX | 34 min |
| Feb 28, 5:10 PM CST | Severe Thunderstorm Warning | LSX | 33 min |
| Feb 28, 5:16 PM CST | Severe Thunderstorm Warning | LSX | 44 min |
| Feb 28, 5:36 PM CST | Severe Thunderstorm Warning | LSX | 39 min |
| Feb 28, 5:44 PM CST | Severe Thunderstorm Warning | LSX | 31 min |
| Feb 28, 9:04 PM CST | Tornado Watch | SPC | 7 hr |
| Mar 1, 12:16 AM CST | Mesoscale Discussion | SPC | 89 min |
| Mar 6, 8:22 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 6, 8:52 PM CST | Tornado Watch | SPC | 6 hr |
| Mar 6, 11:13 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 7, 12:34 AM CST | Tornado Warning | LSX | 26 min |
| Mar 7, 12:48 AM CST | Severe Thunderstorm Warning | LSX | 57 min |
| Mar 9, 3:35 PM CST | Freeze Warning | LSX | 68 hr |
| Mar 13, 2:04 PM CDT | Freeze Warning | LSX | 68 hr |
| Mar 24, 9:36 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Mar 24, 11:46 PM CDT | Special Weather Statement | LSX | 44 min |
| Mar 29, 7:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Mar 29, 8:22 PM CDT | Tornado Watch | SPC | 5 hr |
| Mar 29, 9:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Apr 5, 12:20 AM CDT | Severe Thunderstorm Warning | LSX | 40 min |
| Apr 5, 8:40 PM CDT | River Flood Warning | LSX | 7 days |
| Apr 27, 4:29 AM CDT | Flash Flood Watch | LSX | 4 days |
| Apr 28, 1:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 28, 3:02 PM CDT | River Flood Warning | LSX | 10 days |
| Apr 28, 3:02 PM CDT | River Flood Warning | LSX | 10 days |
| Apr 28, 3:02 PM CDT | River Flood Warning | LSX | 12 days |
| Apr 28, 3:02 PM CDT | River Flood Warning | LSX | 41 days |
| Apr 28, 3:30 PM CDT | River Flood Warning | LSX | 9 days |
| Apr 29, 12:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 29, 2:47 PM CDT | Special Weather Statement | LSX | 58 min |
| Apr 30, 9:04 AM CDT | Areal Flood Warning | LSX | 12 hr |
| Apr 30, 9:01 PM CDT | Areal Flood Warning | LSX | 12 hr |
| May 1, 8:59 AM CDT | Areal Flood Warning | LSX | 4 days |
| May 2, 4:07 AM CDT | Flash Flood Watch | LSX | 64 hr |
| May 17, 3:20 AM CDT | Wind Advisory | LSX | 16 hr |
| May 19, 4:07 AM CDT | Mesoscale Discussion | SPC | 113 min |
| May 19, 4:16 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 19, 4:39 AM CDT | Severe Thunderstorm Warning | LSX | 66 min |
| May 27, 12:13 PM CDT | Tornado Watch | SPC | 7 hr |
| May 27, 1:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| May 27, 6:26 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 5, 5:24 AM CDT | Dense Fog Advisory | LSX | 4 hr |
| Jun 14, 12:40 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 14, 1:04 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 14, 6:11 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Jun 17, 9:50 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Jun 18, 12:34 AM CDT | Special Weather Statement | LSX | 56 min |
| Jun 18, 1:23 AM CDT | Special Weather Statement | LSX | 67 min |
| Jun 18, 1:40 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 29, 1:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 4:04 AM CDT | Heat Advisory | LSX | 4 days |
| Jul 15, 2:30 PM CDT | Excessive Heat Watch | LSX | 3 days |
| Jul 17, 3:00 PM CDT | Excessive Heat Warning | LSX | 6 days |
| Jul 23, 12:38 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 23, 3:12 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 3:42 AM CDT | Heat Advisory | LSX | 40 hr |
| Aug 15, 4:17 AM CDT | Dense Fog Advisory | LSX | 5 hr |
| Aug 16, 2:35 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 29, 4:15 AM CDT | Dense Fog Advisory | LSX | 6 hr |
| Sep 4, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 4, 6:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Sep 4, 7:08 PM CDT | Severe Thunderstorm Warning | LSX | 52 min |
| Sep 4, 7:47 PM CDT | Severe Thunderstorm Warning | LSX | 43 min |
| Sep 4, 9:26 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Sep 14, 3:19 AM CDT | Dense Fog Advisory | LSX | 6 hr |
| Sep 18, 11:19 PM CDT | Dense Fog Advisory | LSX | 11 hr |
| Oct 8, 5:23 AM CDT | Dense Fog Advisory | LSX | 4 hr |
| Oct 9, 5:22 AM CDT | Dense Fog Advisory | LSX | 6 hr |
| Oct 10, 2:41 PM CDT | Severe Thunderstorm Warning | LSX | 49 min |
| Oct 10, 3:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 10, 3:25 PM CDT | Severe Thunderstorm Warning | LSX | 38 min |
| Oct 27, 3:34 AM CDT | Freeze Watch | LSX | 12 hr |
| Oct 27, 3:09 PM CDT | Freeze Warning | LSX | 42 hr |
| Nov 5, 11:09 AM CST | Mesoscale Discussion | SPC | 66 min |
| Nov 5, 12:35 PM CST | Tornado Watch | SPC | 6 hr |
| Nov 5, 2:24 PM CST | Severe Thunderstorm Warning | LSX | 51 min |
| Nov 5, 2:51 PM CST | Mesoscale Discussion | SPC | 114 min |
| Nov 5, 3:14 PM CST | Severe Thunderstorm Warning | LSX | 46 min |
| Nov 5, 3:53 PM CST | Severe Thunderstorm Warning | LSX | 21 min |
| Nov 6, 5:58 PM CST | Special Weather Statement | LSX | 32 min |
| Nov 17, 3:35 PM CST | Wind Advisory | LSX | 26 hr |
| Dec 11, 3:04 AM CST | Red Flag Warning | LSX | 15 hr |
| Dec 29, 3:39 AM CST | Winter Weather Advisory | LSX | 23 hr |
| Dec 29, 3:10 PM CST | Wind Chill Advisory | LSX | 4 days |
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 | 16 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 26 |
| Special Weather Statement | 5 |
| Flooding | |
| Areal Flood Warning | 3 |
| River Flood Warning | 6 |
| Flash Flood Watch | 2 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 2 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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. Rebuilt daily.