Hazardous Weather Outlook
Issued by NWS Chicago, IL

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FLUS43 KLOT 140935
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
435 AM CDT Sat Apr 14 2018

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
150945-
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-
435 AM CDT Sat Apr 14 2018 /535 AM EDT Sat Apr 14 2018/

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

.DAY ONE...Today and Tonight.

WEATHER HAZARDS EXPECTED:
  Elevated Thunderstorm Risk.
  Elevated Non Thunderstorm Wind Risk.
  Significant Lakeshore Flooding Risk.
  Limited Ice Accumulation Risk.

DISCUSSION:

Strong northeasterly winds, with gusts of 45 to 50 mph are
expected over far northern Illinois today. The strongest winds
will be primarily along and north of I-88.

These strong northeasterly winds will produce high waves over
southern Lake Michigan today and tonight and this will produce
localized lakeshore flooding with water and spray likely
impacting vulnerable roadways in northeastern Illinois near Lake
Michigan.

There is also a chance for thunderstorms this afternoon, mainly
south of I-80 and some of these could be strong across central
Illinois. However, severe weather is not expected across our area.

Colder air will filter into far northern IL tonight and this may
result in a period of light freezing rain near the Wisconsin state
line tonight. While some minor ice accumulations are possible on
elevated surfaces, marginal temperatures will likely limit ice
accumulations.


.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...
  Elevated Snow Risk.
Wednesday...
  Limited Non Thunderstorm Wind Risk.

DISCUSSION:

Precipitation is expected to continue on Sunday and into Sunday
night. As colder air shifts over the area late Sunday, expect the
possibility for some light snow Sunday night, with minor
accumulations under an inch possible on grassy areas.


.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving northeast at 50 MPH.

&&

$$

LMZ740>745-150945-
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-Calumet Harbor to Gary-
Gary to Burns Harbor-Burns Harbor to Michigan City-
435 AM CDT Sat Apr 14 2018

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS NEARSHORE
WATERS OF LAKE MICHIGAN AND THE INDIANA NEARSHORE WATERS OF LAKE
MICHIGAN.

.DAY ONE...Today and Tonight.

  Storm Force Winds or Extremely Hazardous Waves are likely.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...
  Gale Force Winds or Very Hazardous Waves are likely.
Monday...
  Hazardous Conditions for Small Craft are likely.
Wednesday and Thursday...
  Hazardous Conditions for Small Craft are likely.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-150945-
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and north of a line from Charlevoix MI to South
Fox Island 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
435 AM CDT Sat Apr 14 2018

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE OPEN WATERS OF LAKE
MICHIGAN.

.DAY ONE...Today and Tonight.

Gales are expected. Occasional storm force gusts are also possible
today.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Gales will continue on Sunday.

&&

$$

KJB

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