Alert archive / Illinois / McHenry County
Weather alerts in McHenry County, Illinois, 2022
129 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
McHenry County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 129
- Warnings
- 36
- Watches
- 19
- Advisories
- 40
- Busiest month
- July41 alerts
- Busiest day
- July 5, 202220 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, 2:27 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 4, 3:43 AM CST | Winter Weather Advisory | LOT | 41 hr |
| Jan 6, 1:52 PM CST | Wind Chill Advisory | LOT | 19 hr |
| Jan 7, 2:17 PM CST | Winter Weather Advisory | LOT | 34 hr |
| Jan 22, 9:21 AM CST | Winter Weather Advisory | LOT | 32 hr |
| Jan 23, 3:17 PM CST | Winter Weather Advisory | LOT | 22 hr |
| Jan 24, 8:39 PM CST | Wind Chill Advisory | LOT | 12 hr |
| Jan 25, 3:13 AM CST | Wind Chill Advisory | LOT | 31 hr |
| Feb 7, 3:00 AM CST | Winter Weather Advisory | LOT | 4 hr |
| Feb 16, 9:32 PM CST | Areal Flood Advisory | LOT | 12 hr |
| Feb 18, 3:24 AM CST | Wind Advisory | LOT | 24 hr |
| Feb 18, 8:07 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Feb 18, 8:42 PM CST | Snow Squall Warning | LOT | 63 min |
| Feb 18, 9:30 PM CST | Snow Squall Warning | LOT | 60 min |
| Feb 19, 2:08 PM CST | Wind Advisory | LOT | 25 hr |
| Feb 21, 2:01 PM CST | Flood Watch | LOT | 22 hr |
| Feb 22, 2:36 AM CST | Winter Weather Advisory | LOT | 16 hr |
| Feb 22, 5:37 AM CST | Special Weather Statement | LOT | 53 min |
| Feb 23, 2:50 PM CST | Winter Weather Advisory | LOT | 39 hr |
| Mar 5, 3:25 AM CST | Wind Advisory | LOT | 30 hr |
| Mar 5, 8:36 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 5, 10:11 PM CST | Severe Thunderstorm Warning | LOT | 64 min |
| Mar 5, 10:32 PM CST | Mesoscale Discussion | SPC | 88 min |
| Mar 6, 2:36 PM CST | Winter Weather Advisory | LOT | 21 hr |
| Mar 25, 3:03 AM CDT | Wind Advisory | LOT | 19 hr |
| Mar 25, 2:18 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 13, 1:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Apr 13, 2:08 PM CDT | Wind Advisory | LOT | 21 hr |
| Apr 14, 10:41 AM CDT | High Wind Warning | LOT | 8 hr |
| Apr 25, 3:01 AM CDT | Freeze Warning | LOT | 24 hr |
| Apr 26, 3:20 AM CDT | Freeze Warning | LOT | 29 hr |
| Apr 30, 1:46 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 30, 3:20 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 30, 5:46 PM CDT | Tornado Warning | LOT | 28 min |
| Apr 30, 6:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Apr 30, 6:35 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| May 20, 7:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 25, 3:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 9, 2:48 AM CDT | Dense Fog Advisory | LOT | 5 hr |
| Jun 12, 3:39 AM CDT | Dense Fog Advisory | LOT | 5 hr |
| Jun 12, 3:37 PM CDT | Heat Advisory | LOT | 3 days |
| Jun 13, 5:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 13, 5:46 PM CDT | Severe Thunderstorm Warning | LOT | 74 min |
| Jun 13, 5:51 PM CDT | Tornado Watch | SPC | 3 hr |
| Jun 13, 6:40 PM CDT | Areal Flood Advisory | LOT | 4 hr |
| Jun 15, 7:53 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 15, 11:38 PM CDT | Special Weather Statement | LOT | 52 min |
| Jun 20, 2:40 PM CDT | Heat Advisory | LOT | 29 hr |
| Jul 4, 2:22 PM CDT | Heat Advisory | LOT | 30 hr |
| Jul 4, 2:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 4, 6:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 4, 8:07 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 4, 8:32 PM CDT | Severe Thunderstorm Warning | LOT | 58 min |
| Jul 4, 9:28 PM CDT | Special Weather Statement | LOT | 92 min |
| Jul 4, 9:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 4, 10:05 PM CDT | Severe Thunderstorm Warning | LOT | 35 min |
| Jul 4, 10:55 PM CDT | Severe Thunderstorm Warning | LOT | 50 min |
| Jul 4, 11:22 PM CDT | Severe Thunderstorm Warning | LOT | 68 min |
| Jul 4, 11:25 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 4, 11:31 PM CDT | Areal Flood Advisory | LOT | 6 hr |
| Jul 5, 12:15 AM CDT | Flash Flood Warning | LOT | 5 hr |
| Jul 5, 3:54 AM CDT | Flood Watch | LOT | 23 hr |
| Jul 5, 3:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 5, 3:51 PM CDT | Special Weather Statement | LOT | 24 min |
| Jul 5, 4:34 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 5, 5:29 PM CDT | Special Weather Statement | LOT | 46 min |
| Jul 5, 5:53 PM CDT | Severe Thunderstorm Warning | LOT | 67 min |
| Jul 5, 5:56 PM CDT | Tornado Warning | LOT | 16 min |
| Jul 5, 6:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 5, 6:34 PM CDT | Areal Flood Advisory | LOT | 36 min |
| Jul 5, 6:43 PM CDT | Severe Thunderstorm Warning | LOT | 77 min |
| Jul 5, 7:08 PM CDT | Areal Flood Advisory | LOT | 5 hr |
| Jul 5, 7:14 PM CDT | Severe Thunderstorm Warning | LOT | 76 min |
| Jul 5, 8:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 5, 9:59 PM CDT | Flash Flood Warning | LOT | 5 hr |
| Jul 5, 10:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 22, 11:56 PM CDT | Severe Thunderstorm Warning | LOT | 49 min |
| Jul 23, 1:58 AM CDT | Areal Flood Advisory | LOT | 5 hr |
| Jul 23, 2:30 AM CDT | Flash Flood Warning | LOT | 6 hr |
| Jul 23, 2:52 AM CDT | Flood Watch | LOT | 9 hr |
| Jul 23, 4:01 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 23, 2:28 PM CDT | Flood Watch | LOT | 20 hr |
| Jul 23, 2:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 23, 3:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 11:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 12:41 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 24, 2:05 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 24, 2:44 AM CDT | Severe Thunderstorm Warning | LOT | 61 min |
| Jul 24, 3:10 AM CDT | Severe Thunderstorm Warning | LOT | 34 min |
| Aug 7, 2:30 AM CDT | Special Weather Statement | LOT | 45 min |
| Aug 7, 5:02 AM CDT | Flood Watch | LOT | 29 hr |
| Aug 28, 12:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 28, 1:09 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 28, 3:27 PM CDT | Severe Thunderstorm Warning | LOT | 63 min |
| Aug 28, 3:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Aug 28, 4:13 PM CDT | Severe Thunderstorm Warning | LOT | 47 min |
| Aug 28, 5:30 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Aug 29, 9:42 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 29, 10:12 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 7, 4:27 AM CDT | Dense Fog Advisory | LOT | 5 hr |
| Sep 11, 2:38 AM CDT | Flood Watch | LOT | 31 hr |
| Sep 11, 7:03 AM CDT | Areal Flood Warning | LOT | 10 hr |
| Sep 11, 10:34 AM CDT | Areal Flood Warning | LOT | 6 hr |
| Sep 11, 1:34 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Sep 11, 3:38 PM CDT | Areal Flood Warning | LOT | 9 hr |
| Sep 20, 3:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Sep 20, 4:29 PM CDT | Severe Thunderstorm Warning | LOT | 76 min |
| Sep 20, 4:54 PM CDT | Severe Thunderstorm Watch | SPC | 2 hr |
| Sep 25, 6:42 PM CDT | Severe Thunderstorm Warning | LOT | 46 min |
| Sep 28, 3:11 PM CDT | Frost Advisory | LOT | 16 hr |
| Oct 7, 3:06 AM CDT | Freeze Watch | LOT | 11 hr |
| Oct 7, 1:59 PM CDT | Freeze Warning | LOT | 18 hr |
| Oct 12, 12:14 PM CDT | Severe Thunderstorm Warning | LOT | 46 min |
| Oct 13, 2:26 PM CDT | Freeze Warning | LOT | 13 hr |
| Oct 14, 2:36 PM CDT | Freeze Warning | LOT | 17 hr |
| Nov 4, 3:18 AM CDT | Wind Advisory | LOT | 40 hr |
| Nov 4, 2:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Nov 5, 2:21 AM CDT | High Wind Warning | LOT | 17 hr |
| Nov 5, 9:51 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Nov 5, 11:11 AM CDT | Severe Thunderstorm Warning | LOT | 57 min |
| Nov 14, 2:27 PM CST | Winter Weather Advisory | LOT | 35 hr |
| Nov 28, 3:47 AM CST | Dense Fog Advisory | LOT | 4 hr |
| Dec 2, 3:39 AM CST | Wind Advisory | LOT | 29 hr |
| Dec 7, 1:02 AM CST | Dense Fog Advisory | LOT | 9 hr |
| Dec 8, 1:36 PM CST | Winter Weather Advisory | LOT | 23 hr |
| Dec 19, 2:30 PM CST | Winter Storm Watch | LOT | 44 hr |
| Dec 21, 10:41 AM CST | Winter Storm Warning | LOT | 3 days |
| Dec 24, 3:19 AM CST | Winter Weather Advisory | LOT | 9 hr |
| Dec 24, 1:05 PM CST | Wind Chill Advisory | LOT | 21 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 | 18 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 9 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 28 |
| Special Weather Statement | 6 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 3 |
| Flood Watch | 6 |
| Areal Flood Advisory | 9 |
| Winter | |
| Snow Squall Warning | 2 |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 11 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 5 |
| Freeze Watch | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 2 |
| Wind Advisory | 7 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20212023
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.