Alert archive / Illinois / Stephenson County
Weather alerts in Stephenson County, Illinois, 2016
110 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Stephenson County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 110
- Warnings
- 18
- Watches
- 16
- Advisories
- 35
- Busiest month
- July25 alerts
- Busiest day
- July 6, 20168 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 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 1, 9:14 PM CST | Dense Fog Advisory | DVN | 6 hr |
| Feb 2, 5:31 PM CST | Dense Fog Advisory | DVN | 9 hr |
| Feb 3, 2:54 AM CST | Dense Fog Advisory | DVN | 3 hr |
| Feb 12, 3:12 AM CST | Wind Chill Advisory | DVN | 29 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 |
| Feb 19, 9:55 AM CST | High Wind Warning | DVN | 8 hr |
| Feb 29, 3:37 AM CST | Winter Storm Warning | DVN | 24 hr |
| Feb 29, 3:37 AM CST | Winter Weather Advisory | DVN | 29 hr |
| Feb 29, 8:49 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 15, 3:48 AM CDT | High Wind Watch | DVN | 12 hr |
| Mar 15, 3:27 PM CDT | High Wind Warning | DVN | 22 hr |
| Mar 15, 3:27 PM CDT | Wind Advisory | DVN | 29 hr |
| Mar 15, 3:31 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 24, 7:08 AM CDT | Winter Weather Advisory | DVN | 5 hr |
| Mar 31, 10:46 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 1, 3:28 PM CDT | Wind Advisory | DVN | 28 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 |
| Apr 21, 3:42 AM CDT | Dense Fog Advisory | DVN | 5 hr |
| Apr 22, 3:16 AM CDT | Frost Advisory | DVN | 28 hr |
| Apr 25, 1:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 25, 2:17 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 11, 4:31 AM CDT | Dense Fog Advisory | DVN | 5 hr |
| May 14, 3:47 AM CDT | Frost Advisory | DVN | 28 hr |
| May 17, 7:19 PM CDT | Frost Advisory | DVN | 12 hr |
| May 25, 5:49 PM CDT | Special Weather Statement | DVN | 26 min |
| May 26, 6:20 AM CDT | Special Weather Statement | DVN | 55 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 28, 5:44 PM CDT | Special Weather Statement | DVN | 46 min |
| May 28, 6:20 PM CDT | Special Weather Statement | DVN | 25 min |
| May 28, 6:38 PM CDT | Special Weather Statement | DVN | 22 min |
| May 28, 8:30 PM CDT | Mesoscale Discussion | SPC | 60 min |
| May 31, 9:45 AM CDT | Special Weather Statement | DVN | 30 min |
| Jun 9, 7:28 PM CDT | Special Weather Statement | DVN | 32 min |
| Jun 9, 7:36 PM CDT | Severe Thunderstorm Warning | DVN | 34 min |
| Jun 9, 7:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 9, 8:29 PM CDT | Special Weather Statement | DVN | 31 min |
| Jun 12, 8:25 AM CDT | Special Weather Statement | DVN | 35 min |
| Jun 14, 4:03 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 14, 9:47 PM CDT | Severe Thunderstorm Warning | DVN | 58 min |
| Jun 14, 11:20 PM CDT | Special Weather Statement | DVN | 40 min |
| Jun 14, 11:54 PM CDT | Flash Flood Warning | DVN | 4 hr |
| Jun 21, 2:33 PM CDT | Flash Flood Watch | DVN | 19 hr |
| Jun 22, 3:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 22, 6:11 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 23, 5:11 AM CDT | Dense Fog Advisory | DVN | 4 hr |
| Jul 5, 8:38 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jul 5, 9:50 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 5, 10:46 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 5, 11:51 PM CDT | Special Weather Statement | DVN | 54 min |
| Jul 6, 12:38 AM CDT | Special Weather Statement | DVN | 52 min |
| Jul 6, 12:50 AM CDT | Severe Thunderstorm Warning | DVN | 40 min |
| Jul 6, 1:27 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 3:06 AM CDT | Severe Thunderstorm Warning | DVN | 54 min |
| Jul 17, 6:24 AM CDT | Severe Thunderstorm Warning | DVN | 49 min |
| Jul 17, 7:00 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 3:37 PM CDT | Excessive Heat Watch | DVN | 44 hr |
| Jul 20, 4:00 AM CDT | Excessive Heat Warning | DVN | 4 days |
| Jul 21, 6:18 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 21, 8:09 PM CDT | Severe Thunderstorm Warning | DVN | 66 min |
| Jul 21, 8:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jul 23, 2:50 PM CDT | Mesoscale Discussion | SPC | 25 min |
| Jul 23, 3:23 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 5:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 23, 5:55 PM CDT | Severe Thunderstorm Warning | DVN | 65 min |
| Jul 24, 4:08 AM CDT | Heat Advisory | DVN | 15 hr |
| Jul 28, 11:16 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 28, 12:04 PM CDT | Special Weather Statement | DVN | 116 min |
| Jul 28, 12:06 PM CDT | Special Weather Statement | DVN | 114 min |
| Jul 28, 2:53 PM CDT | Special Weather Statement | DVN | 67 min |
| Jul 28, 2:58 PM CDT | Tornado Warning | DVN | 32 min |
| Aug 4, 4:44 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 4, 7:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Aug 4, 8:36 PM CDT | Severe Thunderstorm Warning | DVN | 39 min |
| Aug 11, 3:08 AM CDT | Flash Flood Watch | DVN | 30 hr |
| Aug 11, 8:57 PM CDT | Special Weather Statement | DVN | 93 min |
| Aug 11, 10:33 PM CDT | Special Weather Statement | DVN | 87 min |
| Aug 11, 11:53 PM CDT | Special Weather Statement | DVN | 67 min |
| Aug 18, 7:11 PM CDT | Severe Thunderstorm Warning | DVN | 49 min |
| Aug 18, 7:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Aug 19, 6:46 AM CDT | Special Weather Statement | DVN | 89 min |
| Sep 6, 3:25 PM CDT | Flash Flood Watch | DVN | 39 hr |
| Sep 7, 1:00 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 7, 3:36 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 19, 2:02 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Sep 19, 5:07 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Sep 20, 5:16 AM CDT | Dense Fog Advisory | DVN | 4 hr |
| Sep 21, 9:31 AM CDT | Special Weather Statement | DVN | 44 min |
| Oct 12, 3:45 AM CDT | Frost Advisory | DVN | 29 hr |
| Oct 13, 3:18 PM CDT | Frost Advisory | DVN | 18 hr |
| Oct 20, 2:17 PM CDT | Frost Advisory | DVN | 18 hr |
| Nov 4, 3:48 AM CDT | Dense Fog Advisory | DVN | 8 hr |
| Nov 18, 11:12 AM CST | Wind Advisory | DVN | 25 hr |
| Dec 3, 2:44 PM CST | Winter Weather Advisory | DVN | 24 hr |
| Dec 5, 3:47 AM CST | Dense Fog Advisory | DVN | 9 hr |
| Dec 6, 6:03 AM CST | Dense Fog Advisory | DVN | 5 hr |
| Dec 9, 11:09 AM CST | Winter Storm Watch | DVN | 16 hr |
| Dec 9, 11:09 AM CST | Winter Weather Advisory | DVN | 58 hr |
| Dec 10, 11:33 AM CST | Winter Storm Warning | DVN | 23 hr |
| Dec 14, 3:05 AM CST | Wind Chill Advisory | DVN | 31 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 |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
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.