Sunday, April 30, 2017

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 301710
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1210 PM CDT Sun Apr 30 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-
1210 PM CDT Sun Apr 30 2017 /110 PM EDT Sun Apr 30 2017/

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

.DAY ONE...This Afternoon and Tonight.

WEATHER HAZARDS EXPECTED:
Elevated Thunderstorm Risk...with an associated:
Elevated Flooding Risk.
Limited Tornado Risk.
Limited Hail Risk...up to quarter size.
Limited Thunderstorm Wind Damage Risk...up to 60 MPH.

DISCUSSION:

Periods of showers will continue through this evening, with
some heavy late in the afternoon into the evening. This could
cause flash flooding in some locations that received heavy rainfall
on Saturday.

The potential for scattered thunderstorms will gradually increase
late this afternoon and evening before quickly ending near
midnight. Any severe thunderstorm development this evening would be
isolated and mainly along and east of Interstate 55 and south of
Interstate 80. If a severe thunderstorm can develop, it would be
quick moving and capable of a brief tornado and brief wind gusts up
to 60 mph.

In addition...flooding is expected along portions of areas rivers,
some of which is likely to be major flooding.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
Limited Non Thunderstorm Wind Risk.

In addition...flooding is expected along portions of areas rivers,
some of which is likely to be major flooding early this week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may briefly be requested east of Interstate 55
and south of Interstate 80 this evening.

GENERAL STORM MOTION OF THE DAY:

Moving to the northeast at 55 MPH.

&&



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