Monday, April 3, 2017

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 032115
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
415 PM CDT Mon Apr 3 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-
415 PM CDT Mon Apr 3 2017 /515 PM EDT Mon Apr 3 2017/

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

.DAY ONE...Tonight.

WEATHER HAZARDS EXPECTED:
Limited Thunderstorm Risk.

DISCUSSION:

Occasional showers are expected areawide through tonight.
Additional rainfall totals will generally be less than 1 inch.
Runoff from this rain may lead to some rises on local rivers.
Some embedded thunderstorms are possible mainly along and south
of Interstate 80 this evening.

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

Wednesday...
Significant Lake Shore Flooding Risk Wednesday night.
Limited Flooding Risk.
Elevated Non Thunderstorm Wind Risk.
Elevated Snow Risk.

Thursday...
Significant Lake Shore Flooding Risk.
Elevated Non Thunderstorm Wind Risk.
Limited Snow Risk early.

Sunday...
Limited Thunderstorm Risk.

DISCUSSION:

A second storm system will bring more rain to the region
Wednesday through Thursday. Depending on the exact track and
strength of this system significant rainfall amounts are possible,
which could result in some flooding of low lying areas and renewed
rises along rivers and streams. There is a chance that the rain
could change to heavy wet snow Wednesday night into Thursday
morning, and the some wet snow accumulation is possible.

This storm system is also likely to produce strong northerly winds
up to 50 mph over the area late Wednesday into Thursday. These strong
winds could also drive waves in excess of 12 feet into the Illinois
and Indiana shores resulting in an increase threat of lake shore
flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

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