Monday, August 12, 2019

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 121648 AAA
HWOLOT

Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
1148 AM CDT Mon Aug 12 2019


Winnebago-Boone-McHenry-Lake-Ogle-Lee-De Kalb-Kane-DuPage-Cook-
La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford-
Porter-Newton-Jasper-Benton-
1148 AM CDT Mon Aug 12 2019 /1248 PM EDT Mon Aug 12 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...

Significant Thunderstorm Risk...with an associated:
Limited Tornado risk.
Elevated damaging wind risk...up to 70 mph.
Limited hail risk...up to quarter-sized.
Elevated Flooding Risk.

DISCUSSION...

A strong weather system is expected to bring widespread rain and
thunderstorms to the region this afternoon through tonight.
Some storms could be strong to severe with all modes of severe
weather possible. However, damaging wind will be the primary
threat, although a few tornadoes will be possible. The main
corridor for severe weather appears to be south and west of a
Mendota to Rensselaer line. Heavy rainfall will also be possible,
which could lead to isolated instances of flooding into this
evening.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday...
Limited Thunderstorm Risk.
High Swim Risk.
Friday...
Limited Thunderstorm Risk.
Saturday and Sunday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.

DISCUSSION:

Strong and gusty north winds on Tuesday should result in
dangerous swimming conditions on Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed this afternoon through this evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east-southeast at 40 to 50 mph late afternoon
through this evening.
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