Alert archive / Illinois / Knox County
Weather alerts in Knox County, Illinois, 2009
134 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Knox County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 134
- Warnings
- 39
- Watches
- 25
- Advisories
- 33
- Busiest month
- June35 alerts
- Busiest day
- June 18, 20098 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 3, 8:40 PM CST | Dense Fog Advisory | ILX | 9 hr |
| Jan 12, 3:06 PM CST | Winter Weather Advisory | ILX | 11 hr |
| Jan 13, 2:53 PM CST | Wind Chill Advisory | ILX | 68 hr |
| Jan 13, 2:53 PM CST | Winter Weather Advisory | ILX | 27 hr |
| Jan 13, 11:38 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 14, 2:49 AM CST | Wind Chill Warning | ILX | 56 hr |
| Feb 3, 3:01 AM CST | Wind Chill Advisory | ILX | 7 hr |
| Feb 3, 3:25 PM CST | Wind Chill Advisory | ILX | 12 hr |
| Feb 10, 10:33 AM CST | Flood Watch | ILX | 29 hr |
| Feb 20, 3:34 AM CST | Winter Weather Advisory | ILX | 38 hr |
| Feb 26, 9:26 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 27, 8:13 AM CST | River Flood Warning | ILX | 26 hr |
| Mar 5, 10:32 AM CST | Wind Advisory | ILX | 7 hr |
| Mar 6, 3:05 PM CST | Flash Flood Watch | ILX | 47 hr |
| Mar 8, 1:52 AM CST | Areal Flood Advisory | ILX | 6 hr |
| Mar 8, 6:28 AM CDT | Severe Thunderstorm Warning | ILX | 47 min |
| Mar 8, 11:02 AM CDT | Areal Flood Warning | ILX | 6 hr |
| Mar 8, 11:02 AM CDT | River Flood Warning | ILX | 6 days |
| Mar 9, 3:03 AM CDT | Flash Flood Watch | ILX | 33 hr |
| Mar 10, 4:49 AM CDT | Areal Flood Advisory | ILX | 6 hr |
| Mar 10, 3:52 PM CDT | Wind Advisory | ILX | 14 hr |
| Mar 27, 2:21 PM CDT | Winter Storm Watch | ILX | 13 hr |
| Mar 28, 3:48 AM CDT | Winter Weather Advisory | ILX | 28 hr |
| Mar 28, 10:40 PM CDT | River Flood Warning | ILX | 42 hr |
| Apr 5, 10:50 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 20, 8:19 AM CDT | River Flood Warning | ILX | 37 hr |
| Apr 23, 6:20 PM CDT | Special Weather Statement | ILX | 55 min |
| Apr 23, 7:08 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Apr 23, 8:04 PM CDT | Special Weather Statement | ILX | 41 min |
| Apr 25, 5:32 PM CDT | Mesoscale Discussion | SPC | 73 min |
| Apr 25, 9:23 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Apr 28, 11:07 AM CDT | River Flood Warning | ILX | 24 hr |
| Apr 29, 3:11 PM CDT | Flash Flood Watch | ILX | 19 hr |
| Apr 30, 2:48 AM CDT | Areal Flood Advisory | ILX | 6 hr |
| Apr 30, 8:05 AM CDT | River Flood Warning | ILX | 66 hr |
| May 8, 6:10 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 8, 8:29 PM CDT | Severe Thunderstorm Warning | ILX | 46 min |
| May 8, 8:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 8, 9:15 PM CDT | Severe Thunderstorm Warning | ILX | 31 min |
| May 13, 9:27 AM CDT | Mesoscale Discussion | SPC | 63 min |
| May 13, 2:39 PM CDT | Tornado Watch | SPC | 7 hr |
| May 13, 5:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 13, 7:05 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 13, 8:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 14, 12:24 PM CDT | River Flood Warning | ILX | 6 days |
| May 14, 3:02 PM CDT | Flash Flood Watch | ILX | 32 hr |
| May 15, 9:03 AM CDT | Flash Flood Warning | ILX | 6 hr |
| May 15, 10:28 AM CDT | Flash Flood Warning | ILX | 5 hr |
| May 15, 2:35 PM CDT | Flash Flood Warning | ILX | 6 hr |
| May 15, 7:35 PM CDT | Flash Flood Warning | ILX | 4 hr |
| May 15, 10:44 PM CDT | Areal Flood Warning | ILX | 6 days |
| Jun 1, 2:37 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 1, 5:17 PM CDT | Severe Thunderstorm Warning | ILX | 43 min |
| Jun 1, 5:53 PM CDT | Severe Thunderstorm Warning | ILX | 52 min |
| Jun 1, 6:18 PM CDT | Severe Thunderstorm Warning | ILX | 57 min |
| Jun 1, 6:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 18, 3:20 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 18, 3:53 AM CDT | Special Weather Statement | ILX | 67 min |
| Jun 18, 4:12 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 18, 4:14 AM CDT | Severe Thunderstorm Warning | ILX | 61 min |
| Jun 18, 9:42 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 18, 10:11 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 18, 1:03 PM CDT | Severe Thunderstorm Warning | ILX | 57 min |
| Jun 18, 1:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 19, 12:06 AM CDT | River Flood Warning | ILX | 67 hr |
| Jun 19, 7:14 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 19, 1:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 19, 2:24 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 19, 4:30 PM CDT | Severe Thunderstorm Warning | ILX | 45 min |
| Jun 19, 5:03 PM CDT | Severe Thunderstorm Warning | ILX | 42 min |
| Jun 19, 5:37 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 19, 5:53 PM CDT | Severe Thunderstorm Warning | ILX | 45 min |
| Jun 22, 1:54 AM CDT | Heat Advisory | ILX | 65 hr |
| Jun 23, 5:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jun 25, 10:38 AM CDT | Heat Advisory | ILX | 8 hr |
| Jun 25, 12:14 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jun 25, 12:48 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 25, 2:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Jun 25, 5:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 27, 1:19 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 27, 2:41 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 27, 6:03 PM CDT | Severe Thunderstorm Warning | ILX | 57 min |
| Jun 27, 6:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 27, 6:30 PM CDT | Severe Thunderstorm Warning | ILX | 60 min |
| Jun 27, 6:48 PM CDT | Severe Thunderstorm Warning | ILX | 42 min |
| Jun 27, 8:23 PM CDT | Areal Flood Advisory | ILX | 3 hr |
| Jul 8, 3:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jul 8, 4:15 PM CDT | Tornado Warning | ILX | 45 min |
| Jul 15, 2:30 AM CDT | Areal Flood Advisory | ILX | 6 hr |
| Jul 24, 3:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 24, 7:20 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 24, 8:53 PM CDT | Special Weather Statement | ILX | 52 min |
| Jul 24, 9:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jul 24, 9:37 PM CDT | Severe Thunderstorm Warning | ILX | 53 min |
| Jul 24, 9:51 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 24, 10:19 PM CDT | Severe Thunderstorm Warning | ILX | 56 min |
| Aug 4, 7:39 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 4, 8:19 AM CDT | Severe Thunderstorm Warning | ILX | 41 min |
| Aug 8, 3:10 AM CDT | Heat Advisory | ILX | 40 hr |
| Aug 9, 5:52 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 9, 8:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Aug 17, 1:22 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Aug 17, 3:03 AM CDT | Flash Flood Watch | ILX | 12 hr |
| Aug 19, 11:51 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Aug 19, 12:49 PM CDT | Tornado Watch | SPC | 6 hr |
| Aug 19, 2:54 PM CDT | Severe Thunderstorm Warning | ILX | 66 min |
| Aug 19, 3:48 PM CDT | Severe Thunderstorm Warning | ILX | 57 min |
| Aug 19, 8:56 PM CDT | Flash Flood Watch | ILX | 10 hr |
| Aug 26, 3:06 PM CDT | Flash Flood Watch | ILX | 24 hr |
| Sep 6, 11:38 PM CDT | Dense Fog Advisory | ILX | 9 hr |
| Sep 10, 2:39 AM CDT | Dense Fog Advisory | ILX | 7 hr |
| Sep 10, 8:43 PM CDT | Dense Fog Advisory | ILX | 11 hr |
| Sep 25, 8:51 PM CDT | Dense Fog Advisory | ILX | 13 hr |
| Sep 27, 5:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Oct 9, 3:25 PM CDT | Frost Advisory | ILX | 18 hr |
| Oct 10, 2:11 AM CDT | Freeze Warning | ILX | 25 hr |
| Oct 17, 3:23 AM CDT | Frost Advisory | ILX | 30 hr |
| Oct 28, 3:21 PM CDT | Flash Flood Watch | ILX | 4 days |
| Oct 30, 11:21 AM CDT | River Flood Warning | ILX | 52 hr |
| Nov 20, 9:49 PM CST | Dense Fog Advisory | ILX | 11 hr |
| Dec 6, 3:42 PM CST | Winter Storm Watch | ILX | 23 hr |
| Dec 7, 2:59 PM CST | Winter Storm Warning | ILX | 51 hr |
| Dec 7, 2:59 PM CST | Winter Weather Advisory | ILX | 60 hr |
| Dec 8, 11:22 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 9, 10:22 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 10, 2:48 AM CST | Wind Chill Advisory | ILX | 6 hr |
| Dec 12, 7:11 PM CST | Freezing Rain Advisory | ILX | 5 hr |
| Dec 14, 3:24 AM CST | Dense Fog Advisory | ILX | 6 hr |
| Dec 22, 2:57 PM CST | Winter Weather Advisory | ILX | 19 hr |
| Dec 22, 3:10 PM CST | Flood Watch | ILX | 67 hr |
| Dec 24, 9:44 PM CST | River Flood Warning | ILX | 3 days |
| Dec 26, 10:19 AM CST | Winter Weather Advisory | ILX | 11 hr |
| Dec 27, 3:14 AM CST | Winter Weather Advisory | ILX | 12 hr |
| Dec 30, 9:40 AM CST | Winter Weather Advisory | ILX | 14 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 archive20082010
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.