Alert archive / Illinois / McHenry County / 2018
Weather alerts in McHenry County, Illinois, December 2018
8 weather alerts in December 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 8
- Warnings
- 0
- Watches
- 0
- Advisories
- 8
- Busiest day
- December 2, 20181 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 |
|---|---|---|---|
| Dec 2, 3:27 AM CST | Dense Fog Advisory | LOT | 4 hr |
| Dec 9, 9:45 PM CST | Dense Fog Advisory | LOT | 16 hr |
| Dec 11, 1:12 PM CST | Winter Weather Advisory | LOT | 14 hr |
| Dec 14, 4:10 PM CST | Dense Fog Advisory | LOT | 18 hr |
| Dec 16, 12:54 AM CST | Dense Fog Advisory | LOT | 9 hr |
| Dec 20, 9:34 AM CST | Dense Fog Advisory | LOT | 8 hr |
| Dec 28, 4:07 PM CST | Winter Weather Advisory | LOT | 8 hr |
| Dec 30, 2:21 PM CST | Winter Weather Advisory | LOT | 18 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Winter | |
| Winter Weather Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.