Monday, September 3, 2018

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 031641 CCA HWOLOT

Hazardous Weather Outlook…CORRECTED National Weather Service Chicago/Romeoville IL 1141 AM CDT Mon Sep 3 2018

Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-DuPage-Cook- La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford- Lake IN-Porter-Newton-Jasper-Benton- 1141 AM CDT Mon Sep 3 2018 /1241 PM EDT Mon Sep 3 2018/

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

.DAY ONE…Today and Tonight.

Weather hazards expected…

Significant Thunderstorm Risk...with an associated:     Limited damaging wind risk...up to 60 mph.  Elevated Flooding Risk.  Limited Excessive heat Risk.

DISCUSSION…

Additional thunderstorms are likely the rest of today into the evening, especially north of I-80, with isolated to widely scattered thunderstorms south. Flooding is possible, especially near the Illinois and Wisconsin state line. Widespread severe storms are not expected, though a few stronger storms with gusty winds are possible. Hot and humid conditions also continue with highest heat indices in the mid 90s.

Flooding is expected along portions of the Des Plaines, Fox, Pecatonica, and Rock rivers.

.DAYS TWO THROUGH SEVEN…Tuesday through Sunday.

Tuesday…

Limited Thunderstorm Risk.  Limited Excessive Heat Risk.

Wednesday…

Elevated Flooding Risk.  Elevated Thunderstorm Risk.  Limited Excessive Heat Risk.  High Swim Risk

Thursday through Saturday…

Limited Thunderstorm Risk.  High Swim Risk

Sunday…

Limited Thunderstorm Risk.

DISCUSSION:

There are periodic thunderstorm chances throughout the week. In addition, hot and humid conditions are also expected into Wednesday.

Flooding is expected along portions of the Des Plaines, Fox, Pecatonica, and Rock rivers.

.SPOTTER INFORMATION STATEMENT…

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the northeast 30 to 40 mph.

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