Hazardous Weather Outlook
Issued by NWS Chicago, IL

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FLUS43 KLOT 211016
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
416 AM CST Sun Jan 21 2018

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
221030-
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-
416 AM CST Sun Jan 21 2018 /516 AM EST Sun Jan 21 2018/

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

.DAY ONE...Today and Tonight.

WEATHER HAZARDS EXPECTED:
  Significant Fog Risk.
  Limited Thunderstorm Risk Tonight.
  Limited Flooding Risk Tonight.

DISCUSSION:

Areas of dense fog are likely south of I-80 this morning, and
could develop area wide this afternoon and evening.

Showers and scattered thunderstorms are likely tonight, especially
after midnight. In addition to cloud to ground lightning, some of
the thunderstorms will produce very heavy downpours. Locally heavy
rainfall totals could result in localized minor flooding,
especially in low lying and flood prone areas.

In addition, localized ice jam flooding will remain a threat on
area rivers.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
  Limited Flooding Risk.
  Limited Thunderstorm Risk.
  Elevated Snow Risk Monday Night.
Tuesday...
  Limited Snow Risk in the morning.

DISCUSSION:

Scattered thunderstorms, some with heavy rain, will likely linger
into the morning hours Monday. The threat of locally heavy rain
will continue early Monday morning, with localized mainly minor
flooding remaining a threat. Additional isolated thunderstorms
are possible Monday afternoon and early evening.

Rain is expected to change to snow overnight Monday night. Snow
could accumulate Monday night, especially near the Wisconsin
border.

Finally, localized ice jam flooding will remain a threat on area
rivers.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

&&

$$

LMZ740>745-221030-
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-
416 AM CST Sun Jan 21 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.

  Limited Thunderstorm Risk Late Tonight.

  Areas of fog are likely, especially from late afternoon through
  tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
 Significant fog risk.
 Limited Thunderstorm Risk.
 Hazardous Conditions for Small Craft are likely.
Tuesday...
 Hazardous Conditions for Small Craft are likely.
Friday and Saturday...
 Hazardous Conditions for Small Craft are likely.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-221030-
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-
416 AM CST Sun Jan 21 2018

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

.DAY ONE...Today and Tonight.

Gale force winds are likely late tonight northern Lake Michigan.

Areas of fog are likely across southern Lake Michigan, especially
from late afternoon through tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Gale force winds are likely to continue Monday over northern
portions of the lake. Areas of fog are likely across the southern
lake on Monday. Gales are likely across the entire lake Monday
night through Tuesday.

&&

$$

- Izzi

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