Wednesday, May 17, 2017

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 171715
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1215 PM CDT Wed May 17 2017


Winnebago-Boone-McHenry-Lake Illinois-Ogle-Lee-De Kalb-Kane-
DuPage-Cook-La Salle-Kendall-Grundy-Will-Kankakee-Livingston-
Iroquois-Ford-Lake Indiana-Porter-Newton-Jasper-Benton-
1215 PM CDT Wed May 17 2017 /115 PM EDT Wed May 17 2017/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...This Afternoon and Tonight.

WEATHER HAZARDS EXPECTED:
Elevated Thunderstorm Risk...with an associated:
Elevated Tornado Risk.
Elevated Hail Risk...up to half dollar size.
Elevated Thunderstorm Wind Damage Risk...up to 60 MPH.

Elevated Non Thunderstorm Wind Risk.
Elevated Fire Weather Risk.

DISCUSSION:

A powerful storm system will result in very windy conditions
today, with southerly wind gusts of up to 40 to 50 mph.
Fast moving thunderstorms are expected to move into the area from
the west and southwest from the mid to late afternoon into the
evening hours. Some storms could be severe, with an associated
risk for large hail, damaging winds and isolated tornadoes. The
severe threat, including isolated tornado risk, is anticipated to
be greatest over portions of northwest and north central
Illinois.

In addition...minor flooding will continue along portions of the
Illinois River.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday...
Limited Severe Thunderstorm Risk.
Limited Non Thunderstorm Wind Risk.
Limited Fire Weather Risk.
Saturday...
Limited Thunderstorm Risk.
Sunday...
Elevated Thunderstorm Risk.
Tuesday...
Limited Thunderstorm Risk.

In addition...minor flooding will continue along portions of the
Illinois River until late Thursday evening.

.SPOTTER INFORMATION STATEMENT...

Spotters will likely be needed this afternoon and evening.

GENERAL STORM MOTION OF THE DAY:

Moving northeast at 50 to 60 MPH...

&&



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