Alert archive / Illinois / McHenry County / 2023
Weather alerts in McHenry County, Illinois, April 2023
33 weather alerts in April 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 33
- Warnings
- 16
- Watches
- 7
- Advisories
- 1
- Busiest day
- April 4, 20238 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|
| Mar 31, 7:23 PM CDT | Tornado Warning | LOT | 43 min |
| Mar 31, 7:52 PM CDT | Severe Thunderstorm Warning | LOT | 68 min |
| Mar 31, 7:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 4, 8:00 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 4, 10:36 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 4, 12:38 PM CDT | Severe Thunderstorm Warning | LOT | 52 min |
| Apr 4, 12:53 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Apr 4, 1:01 PM CDT | Severe Thunderstorm Warning | LOT | 89 min |
| Apr 4, 1:44 PM CDT | Severe Thunderstorm Warning | LOT | 46 min |
| Apr 4, 2:10 PM CDT | Severe Thunderstorm Warning | LOT | 50 min |
| Apr 4, 5:46 PM CDT | River Flood Warning | LOT | 14 hr |
| Apr 5, 2:10 AM CDT | Special Weather Statement | LOT | 20 min |
| Apr 5, 3:57 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 5, 6:03 AM CDT | Severe Thunderstorm Warning | LOT | 57 min |
| Apr 11, 3:19 AM CDT | Fire Weather Watch | LOT | 23 hr |
| Apr 12, 2:40 AM CDT | Red Flag Warning | LOT | 16 hr |
| Apr 15, 3:11 PM CDT | Freeze Watch | LOT | 13 hr |
| Apr 15, 10:19 PM CDT | Special Weather Statement | LOT | 56 min |
| Apr 15, 10:34 PM CDT | Severe Thunderstorm Warning | LOT | 38 min |
| Apr 17, 2:43 PM CDT | Freeze Warning | LOT | 17 hr |
| Apr 19, 2:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 19, 4:22 PM CDT | Severe Thunderstorm Warning | LOT | 17 min |
| Apr 20, 1:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 20, 2:06 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 20, 3:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 20, 5:02 PM CDT | Severe Thunderstorm Warning | LOT | 31 min |
| Apr 20, 5:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Apr 20, 5:40 PM CDT | Severe Thunderstorm Warning | LOT | 50 min |
| Apr 22, 1:56 PM CDT | Freeze Watch | LOT | 13 hr |
| Apr 23, 2:56 AM CDT | Freeze Warning | LOT | 29 hr |
| Apr 24, 2:30 PM CDT | Freeze Watch | LOT | 23 hr |
| Apr 25, 1:41 PM CDT | Freeze Warning | LOT | 18 hr |
| Apr 26, 2:28 PM CDT | Frost Advisory | LOT | 17 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 | 10 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 2 |
| Flooding | |
| River Flood Warning | 1 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 3 |
| Frost Advisory | 1 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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. Warning verification from the Mesonet's Cow. Rebuilt daily.