Friday, May 22, 2020

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 222050
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
350 PM CDT Fri May 22 2020


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-
350 PM CDT Fri May 22 2020 /450 PM EDT Fri May 22 2020/

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

.DAY ONE...Tonight.

Weather hazards expected...

Elevated Fog Risk.

DISCUSSION...

Fog, at times dense, will continue along the lake shore tonight.
Inland locations may also see some fog.

Portions of the Des Plaines, Fox, Illinois, and Kankakee Rivers
will remain above flood stage.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...
Limited Severe Thunderstorm Risk.
Limited Flooding Risk.
Elevated Fog Risk.
Sunday and Monday...
Limited Thunderstorm Risk.
Tuesday and Wednesday...
Elevated Thunderstorm Risk.
Thursday...
Limited Thunderstorm Risk.

DISCUSSION:

Fog is likely along at least the lake shore Saturday morning and
may be seen in some inland locations early in the morning.

Thunderstorms are likely Saturday afternoon and evening, some of
which could be severe. While there remains uncertainty on
specifics and coverage of any severe storms, there is an
increasing signal for at least some stronger storms in the region.
If ingredients align, there will be some hail, wind, and tornado
risk. While forward motion of the storms should be enough to
preclude a more pronounced flooding threat, locally heavy
downpours are likely. These may cause isolated flash flooding and
renewed river and stream rises.

A warm and humid summer-like pattern will yield a daily chance for
thunderstorms Sunday through Thursday, likely with occasional
heavy downpours. Particularly in the Tuesday through Thursday
timeframe, any thunderstorms may also include a risk for flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.
</pre>


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