Alert archive / Iowa / Jefferson County
Weather alerts in Jefferson County, Iowa, 2016
84 weather alerts in 2016, 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 2016. Tap one for its archive.
- Alerts
- 84
- Warnings
- 7
- Watches
- 14
- Advisories
- 24
- Busiest month
- July18 alerts
- Busiest day
- June 22, 20166 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 8, 6:21 AM CST | Dense Fog Advisory | DVN | 17 hr |
| Jan 9, 3:22 AM CST | Wind Chill Advisory | DVN | 33 hr |
| Jan 16, 3:14 PM CST | Wind Chill Advisory | DVN | 45 hr |
| Feb 1, 3:48 AM CST | Winter Weather Advisory | DVN | 35 hr |
| Feb 1, 10:03 AM CST | Dense Fog Advisory | DVN | 4 hr |
| Feb 2, 5:31 PM CST | Dense Fog Advisory | DVN | 9 hr |
| Feb 13, 3:38 AM CST | Winter Weather Advisory | DVN | 38 hr |
| Feb 15, 4:30 AM CST | Dense Fog Advisory | DVN | 6 hr |
| Feb 18, 3:49 PM CST | Wind Advisory | DVN | 26 hr |
| Mar 14, 12:59 AM CDT | Dense Fog Advisory | DVN | 9 hr |
| Mar 15, 5:35 AM CDT | Special Weather Statement | DVN | 55 min |
| Mar 15, 2:24 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Mar 15, 3:27 PM CDT | Wind Advisory | DVN | 29 hr |
| Mar 15, 3:31 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 23, 9:49 PM CDT | Special Weather Statement | DVN | 56 min |
| Apr 1, 3:28 PM CDT | Wind Advisory | DVN | 28 hr |
| Apr 3, 4:18 AM CDT | Wind Advisory | DVN | 17 hr |
| Apr 7, 3:45 PM CDT | Freeze Watch | DVN | 12 hr |
| Apr 8, 3:16 AM CDT | Freeze Warning | DVN | 30 hr |
| Apr 11, 9:42 AM CDT | Freeze Warning | DVN | 23 hr |
| May 10, 1:01 PM CDT | Special Weather Statement | DVN | 59 min |
| May 11, 4:31 AM CDT | Dense Fog Advisory | DVN | 5 hr |
| May 13, 12:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| May 13, 1:25 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 26, 2:40 AM CDT | Special Weather Statement | DVN | 50 min |
| May 27, 7:51 PM CDT | Special Weather Statement | DVN | 54 min |
| May 27, 8:37 PM CDT | Flash Flood Warning | DVN | 6 hr |
| May 28, 12:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| May 28, 1:37 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 28, 5:33 PM CDT | Mesoscale Discussion | SPC | 57 min |
| May 31, 8:13 PM CDT | Special Weather Statement | DVN | 62 min |
| Jun 1, 3:35 AM CDT | Dense Fog Advisory | DVN | 4 hr |
| Jun 20, 6:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 20, 9:04 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 21, 10:06 PM CDT | Special Weather Statement | DVN | 24 min |
| Jun 21, 10:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 11:16 PM CDT | Special Weather Statement | DVN | 59 min |
| Jun 21, 11:18 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 22, 2:31 AM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 22, 4:23 AM CDT | Heat Advisory | DVN | 15 hr |
| Jun 26, 3:32 AM CDT | Special Weather Statement | DVN | 43 min |
| Jun 26, 4:19 AM CDT | Special Weather Statement | DVN | 41 min |
| Jun 30, 1:29 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 30, 6:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 30, 6:24 PM CDT | Special Weather Statement | DVN | 36 min |
| Jul 2, 3:06 AM CDT | Flash Flood Watch | DVN | 19 hr |
| Jul 6, 1:27 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 1:55 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 6, 4:37 AM CDT | Special Weather Statement | DVN | 53 min |
| Jul 6, 5:04 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 6, 8:42 AM CDT | Special Weather Statement | DVN | 63 min |
| Jul 6, 9:41 AM CDT | Special Weather Statement | DVN | 64 min |
| Jul 7, 6:01 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 7, 6:15 AM CDT | Severe Thunderstorm Warning | DVN | 45 min |
| Jul 10, 12:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 13, 10:33 AM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 13, 11:14 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 13, 2:22 PM CDT | Severe Thunderstorm Warning | DVN | 53 min |
| Jul 17, 9:46 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 18, 3:37 PM CDT | Excessive Heat Watch | DVN | 44 hr |
| Jul 19, 12:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 20, 4:00 AM CDT | Excessive Heat Warning | DVN | 4 days |
| Jul 24, 4:08 AM CDT | Excessive Heat Warning | DVN | 15 hr |
| Aug 11, 3:08 AM CDT | Flash Flood Watch | DVN | 30 hr |
| Aug 11, 9:07 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Aug 11, 11:53 PM CDT | Special Weather Statement | DVN | 67 min |
| Aug 12, 2:29 AM CDT | Special Weather Statement | DVN | 2 hr |
| Aug 24, 4:05 AM CDT | Flash Flood Watch | DVN | 23 hr |
| Sep 6, 3:25 PM CDT | Flash Flood Watch | DVN | 39 hr |
| Sep 7, 1:00 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 19, 2:02 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Sep 19, 2:55 PM CDT | Tornado Watch | SPC | 4 hr |
| Sep 19, 5:07 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Sep 21, 2:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 12, 3:45 AM CDT | Frost Advisory | DVN | 29 hr |
| Oct 20, 2:17 PM CDT | Frost Advisory | DVN | 18 hr |
| Nov 1, 11:46 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Nov 15, 5:04 AM CST | Dense Fog Advisory | DVN | 6 hr |
| Nov 18, 11:12 AM CST | Wind Advisory | DVN | 25 hr |
| Nov 28, 4:28 PM CST | Mesoscale Discussion | SPC | 92 min |
| Dec 5, 3:47 AM CST | Dense Fog Advisory | DVN | 9 hr |
| Dec 15, 11:34 AM CST | Winter Weather Advisory | DVN | 60 hr |
| Dec 16, 3:37 PM CST | Wind Chill Advisory | DVN | 66 hr |
| Dec 29, 3:34 AM CST | Wind Advisory | DVN | 13 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 | 2 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 23 |
| Special Weather Statement | 16 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 4 |
| Winter | |
| Winter Weather Advisory | 3 |
| Heat | |
| Excessive Heat Warning | 2 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20152017
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.