Sunday, April 18, 2021

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 182054
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
354 PM CDT Sun Apr 18 2021


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
354 PM CDT Sun Apr 18 2021 /454 PM EDT Sun Apr 18 2021/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk through early evening south of I-80.

DISCUSSION...

Isolated showers late this afternoon may briefly become strong
enough to produce lightning, primarily south of I-80.

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

Tuesday afternoon and evening...
Elevated Snow Risk.
Tuesday night and Wednesday night...
Significant Freeze Risk.

DISCUSSION:

A late season storm system may bring accumulating wet snow to the
area late Monday night into Tuesday evening, with accumulations
primarily on non-paved surfaces. The greatest potential will be
east of I-55, especially into northwest Indiana, late Tuesday
afternoon and evening. Sub-freezing temperatures Tuesday night
and again Wednesday night will result in a significant freeze
risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east-southeast at 20 mph.
</pre>


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