Friday, August 24, 2018

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 242027 HWOLOT

Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 327 PM CDT Fri Aug 24 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- 327 PM CDT Fri Aug 24 2018 /427 PM EDT Fri Aug 24 2018/

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

.DAY ONE…Tonight.

Weather hazards expected…

Elevated Thunderstorm Risk...with an associated:     Limited hail risk...up to quarter size.     Limited damaging wind risk...up to 60 mph.  Limited Flooding Risk.  High Swim Risk through this evening.

DISCUSSION…

Thunderstorms are possible across the area later this evening. There is also a limited risk for strong to severe thunderstorms mainly west of Interstate 57 in northern Illinois with large hail, damaging winds and heavy rainfall the main threats.

.DAYS TWO THROUGH SEVEN…Saturday through Thursday.

Saturday…

Limited Thunderstorm Risk.  Limited Excessive Heat Risk.

Sunday…

Elevated Severe Thunderstorm Risk.  Limited Excessive Heat Risk.

Monday…

Limited Thunderstorm Risk.  Limited Excessive Heat Risk.

Tuesday…

Elevated Thunderstorm Risk.  Limited Excessive Heat Risk.

Wednesday and Thursday…

Limited Thunderstorm Risk.

DISCUSSION:

Heat and humidity will return over the weekend into early next week with peak heat index values up to around 100 degrees forecast. In addition, there will be periodic chances for thunderstorms.

.SPOTTER INFORMATION STATEMENT…

Spotters may be needed this evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east at 30 to 40 MPH.

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