Headline:
Flash Flood Warning issued June 11 at 6:27PM CDT until June 11 at 10:00PM CDT by NWS Chicago IL
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
June 11, 2026 - 4:27pm
Expires:
June 11, 2026 - 8:00pm
Description:
FFWLOT
The National Weather Service in Chicago has issued a
* Flash Flood Warning for...
McHenry County in northeastern Illinois...
* Until 1000 PM CDT.
* At 627 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to 1 inch of rain has
fallen. The expected rainfall rate is 1 to 2 inches in 1 hour.
Additional rainfall amounts of 1 to 2 inches are possible in the
warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding.
SOURCE...Radar.
IMPACT...Rapid-onset flooding of creeks, streams, drainage
ditches, streets, underpasses, low-lying areas, and
other poor drainage areas.
* Some locations that will experience flash flooding include...
Crystal Lake, Algonquin, Lake in the Hills, McHenry, Woodstock,
Huntley, Fox Lake, Harvard, Island Lake, Marengo, Cary, Johnsburg,
Lakemoor, Spring Grove, Fox River Grove, Barrington Hills, Wonder
Lake, Lakewood, Pistakee Highlands and Oakwood Hills.
Instruction:
A Flash Flood Warning means rapid-onset flooding is imminent or may
already be occurring. Persons along creeks, drainage ditches, and
other waterways should take immediate precautions to protect life
and property.
Area Description:
McHenry, IL
Forcast Office:
NWS Chicago IL
Sender: