Tuesday, September 3, 2019

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 031717
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1217 PM CDT Tue Sep 3 2019


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-Cook-
La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford-
Lake IN-Porter-Newton-Jasper-Benton-
1217 PM CDT Tue Sep 3 2019 /117 PM EDT Tue Sep 3 2019/

This Hazardous Weather Outlook is for portions of 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 ping pong ball size.
Elevated Damaging Wind Risk...up to 60 mph.
Limited Non thunderstorm wind Risk.

DISCUSSION...

Scattered thunderstorms will be seen this afternoon into early
to mid evening. The highest coverage of thunderstorms is
anticipated to be along and east of I-57 in Illinois and into
northwest Indiana. Some of the thunderstorms could be severe,
capable of mainly producing large hail and damaging wind gusts.
The tornado threat is non-zero, mainly over northwest Indiana
and far northeast and eastern Illinois.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...
Limited Lakeshore Flooding Risk.
High Swim Risk.
Saturday through Monday...
Limited Thunderstorm Risk.

DISCUSSION:

Strong northerly winds will continue over Lake Michigan on
Wednesday, elevating already near record high lake levels, which
could cause minor lakeshore flooding. In addition, large waves and
strong currents will create life threatening swimming conditions
at Lake Michigan beaches.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed from the mid to late afternoon into the
early to mid evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east to southeast 40 to 60 mph.
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