Wednesday, May 2, 2018

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 021742
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1242 PM CDT Wed May 2 2018


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-
1242 PM CDT Wed May 2 2018 /142 PM EDT Wed May 2 2018/

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:
Limited Tornado Risk.
Elevated Hail Risk...up to quarter size.
Elevated Thunderstorm Wind Damage Risk...up to 65 MPH.
Limited Flooding Risk.

DISCUSSION:

Thunderstorm potential will increase late this afternoon and
continue through tonight as a slow moving cold front approaches
the area from the northwest. Some storms could be severe with the
capability of producing damaging winds and large hail during the
late afternoon and evening hours. The severe threat will should
gradually diminish with time and eastward extent overnight.
Locally heavy rainfall amounts, in excess of an inch, are
possible.

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

Thursday...
Elevated Flooding Risk.
Elevated Severe Thunderstorm Risk.
Friday through Sunday...
Limited Thunderstorm Risk.

DISCUSSION:

A deepening area of low pressure will move across the region
Thursday night into Friday morning. Isolated to scattered
thunderstorms may occur at times during the day Thursday,
though the best focus for potentially strong to severe
thunderstorms will be from late Thursday afternoon into the
overnight hours of Thursday night. Damaging winds, large
hail and locally heavy rainfall will be possible with these
storms. Thunderstorms will end from northwest to southeast
Friday.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed, especially late this afternoon through mid
evening.

GENERAL STORM MOTION OF THE DAY:

Moving to the east-northeast at 45 MPH...

&&
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