Sunday, June 17, 2018

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 171749 HWOLOT

Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 1249 PM CDT Sun Jun 17 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- 1249 PM CDT Sun Jun 17 2018 /149 PM EDT Sun Jun 17 2018/

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 Excessive Heat Risk.

DISCUSSION…

Temperatures in the low to mid 90s and dewpoints in the 70s will result in dangerous heat indices of 100 to 110 area wide.

.DAYS TWO THROUGH SEVEN…Monday through Saturday.

Monday…

Limited Severe Thunderstorm Risk.  Limited Flooding Risk.  Elevated Excessive Heat Risk.

Tuesday…

Limited Flooding Risk.  Elevated Thunderstorm Risk.  Limited Excessive Heat Risk far south.

Wednesday through Saturday…

Limited Thunderstorm Risk.

DISCUSSION:

Temperatures will warm to the low to mid 90s on Monday. This combined with dewpoints in the 70s will result in dangerous heat indices of 100 to 105 area wide, with highest confidence south and west.

Thunderstorms are expected Monday afternoon and evening. An isolated strong to severe thunderstorm is possible, with heavy rainfall also expected.

.SPOTTER INFORMATION STATEMENT…

Spotter activation will not be necessary through tonight.

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