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Hazardous Weather Outlook


Hazardous Weather Outlook...UPDATED
National Weather Service Milwaukee/Sullivan WI
924 AM CDT Sun May 20 2018

WIZ046-047-051-052-056>060-062>072-211200-
Marquette-Green Lake-Fond Du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
924 AM CDT Sun May 20 2018

This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.

.DAY ONE...Today and Tonight

There is a small chance for thunderstorms in southeast Wisconsin
through 11 am.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a small chance for thunderstorms Monday, and at times
Wednesday through Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

Hazardous Weather Outlook...UPDATED
National Weather Service Milwaukee/Sullivan WI
924 AM CDT Sun May 20 2018

LMZ643>646-211200-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
924 AM CDT Sun May 20 2018

This Hazardous Weather Outlook is for portions of Lake Michigan.

.DAY ONE...Today and Tonight

A Small Craft Advisory remains in effect until early this evening
for gusty northeast winds and high waves.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a small chance for thunderstorms Monday, and at times
Thursday through Saturday.

$$
Cronce

www.weather.gov/mkx

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
451 AM CDT Sun May 20 2018

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-211000-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
451 AM CDT Sun May 20 2018

This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.

.DAY ONE...TODAY AND TONIGHT

Scattered thunderstorms will occur off and on across the area
today and into this evening. While severe storms are not
anticipated, some of the stronger cells may produce small hail and
locally heavy rainfall.

Flooding will continue along portions of the Mississippi River
into next week.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A few thunderstorms will be possible Monday into Monday evening,
but severe storms are not expected.

Chances for thunderstorms increase again from later Thursday into
Saturday. The threat for organized severe storms during this
period appears to be low at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today and tonight.

$$

12

Hazardous Weather Outlook
National Weather Service Green Bay WI
423 AM CDT Sun May 20 2018

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-211100-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
423 AM CDT Sun May 20 2018

This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.

.DAY ONE...Today and Tonight

An elevated fire danger will exists across northern Wisconsin this
afternoon and evening due to very low relative humidities.

Temperatures at the typical cold spots in northern Wisconsin may
drop to near or below freezing tonight. Anyone who purchased
cold-sensitive plants for the upcoming growing season should
provide them protection from the cold.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms are possible at times from Thursday through next
Saturday. Some of the storms Friday into Saturday could be
strong.

Elevated fire danger is possible across the north again Monday
through Wednesday. The lowest relative humidities are likely to
occur on Monday, with slowly rising values by the end of the work
week.


.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

Hazardous Weather Outlook
National Weather Service Green Bay WI
423 AM CDT Sun May 20 2018

LMZ521-522-541>543-211100-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
423 AM CDT Sun May 20 2018

This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.

.DAY ONE...Today and Tonight

Gusty winds and high waves will gradually subside today.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

A thunderstorm is possible south of Kewaunee Monday afternoon
and Monday night that may pose a hazard to mariners.

Thunderstorms are possible at times from Thursday night through
next Saturday. Some of the storms Friday into Saturday could be
strong.

$$

Skowronski/Eckberg

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
328 AM CDT Sun May 20 2018

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-210830-
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-
328 AM CDT Sun May 20 2018

THIS HAZARDOUS WEATHER OUTLOOK IS FOR the open waters of Lake
Michigan.

.DAY ONE...Today and Tonight.

  Limited Thunderstorm Risk.

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

Monday...
  Limited Thunderstorm Risk.
Thursday through Saturday...
  Limited Thunderstorm Risk.

&&

$$

BMD

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Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
328 AM CDT Sun May 20 2018

LMZ740>745-210830-
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-
328 AM CDT Sun May 20 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.
  Hazardous Conditions for Small Craft are likely.

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

Monday...
  Limited Thunderstorm Risk.
Thursday through Saturday...
  Limited Thunderstorm Risk.

&&

$$

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
328 AM CDT Sun May 20 2018

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
210830-
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-
328 AM CDT Sun May 20 2018 /428 AM EDT Sun May 20 2018/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR North Central Illinois...
Northeast Illinois AND Northwest Indiana.

.DAY ONE...Today and Tonight.

WEATHER HAZARDS EXPECTED:
  Limited Thunderstorm Risk.
  Limited Fog Risk.

DISCUSSION:

An isolated thunderstorm or two is possible today. Severe
thunderstorms are unlikely.

Portions of the Des Plaines River will remain in flood.

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

Monday...
  Limited Thunderstorm Risk.
Thursday...
  Limited Thunderstorm Risk.
Friday...
  Elevated Thunderstorm Risk.
Saturday...
  Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving east at 30 to 40 MPH.

&&

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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