Wednesday, April 26, 2017

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 261721
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1221 PM CDT Wed Apr 26 2017


Winnebago-Boone-McHenry-Lake Illinois-Ogle-Lee-De Kalb-Kane-
DuPage-Cook-La Salle-Kendall-Grundy-Will-Kankakee-Livingston-
Iroquois-Ford-Lake Indiana-Porter-Newton-Jasper-Benton-
1221 PM CDT Wed Apr 26 2017 /121 PM EDT Wed Apr 26 2017/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...This Afternoon and Tonight.

WEATHER HAZARDS EXPECTED:
Significant Thunderstorm Risk...with an associated:
Limited Thunderstorm Wind Damage Risk...up to 60 MPH.
Elevated Flooding Risk.

DISCUSSION:

Showers and storms will increase in coverage from the southwest
late this afternoon or early evening ahead of a cold front.
Damaging winds may be possible with some of these storms. The
greater severe threat will remain south of our area, but areas
south and east of Interstate 55 could experience a few stronger
storms. Additional heavy rain will occur this evening and
overnight, which will bring the concern for street and possible
river flooding, as some areas may receive 1 to 2 inches of
rainfall.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Friday and Saturday...
Limited Thunderstorm Risk.
Sunday...
Limited Flooding Risk.
Limited Thunderstorm Risk.

DISCUSSION:

Deep low pressure across the plains will bring several waves of
rain and storms this weekend. Thunder would be most prevalent
later Saturday into Sunday. Heavy rain is the highest concern.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed this evening.

GENERAL STORM MOTION OF THE DAY:

Moving northeast at 45 to 50 mph.

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