Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
210 PM CDT Wed Jun 17 2026
LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-181915-
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
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 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
210 PM CDT Wed Jun 17 2026
This Hazardous Weather Outlook is for the open waters of Lake
Michigan.
.DAY ONE...Tonight
Thunderstorms are possible this evening. A few may become strong
to severe, especially across southern portions of the Lake.
A few gales are possible this afternoon into tonight over the
southern half of the lake.
.DAYS TWO THROUGH SEVEN...Thursday through Wednesday
Next noteworthy chance for thunderstorm development is Sunday.
$$
www.weather.gov/mkx
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
210 PM CDT Wed Jun 17 2026
LMZ643>646-181915-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
210 PM CDT Wed Jun 17 2026
This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.
.DAY ONE...Tonight
Thunderstorms are possible this evening. A few storms may become
strong to severe, particularly further south towards Winthrop
Harbor.
A Small Craft Advisory is in effect this afternoon through late
tonight. Gusty southeast winds and high waves are expected. Winds
turn west to northwest late tonight, but waves remain elevated
into the early morning hours.
.DAYS TWO THROUGH SEVEN...Thursday through Wednesday
Next noteworthy chance for widespread thunderstorm development is
Sunday.
$$
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
210 PM CDT Wed Jun 17 2026
WIZ046-047-051-052-056>060-062>072-181915-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
210 PM CDT Wed Jun 17 2026
This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.
.DAY ONE...Tonight
Isolated to scattered thunderstorms are expected this afternoon
into this evening, with a few gaining the potential to produce
damaging winds and hail.
A High Swim Risk is in effect for Lake Michigan beaches through
late tonight. Gusty southeast winds will lead to life threatening
waves of 5 to 7 ft and dangerous currents. Stay out of the water
and away from dangerous areas like piers and breakwalls!
.DAYS TWO THROUGH SEVEN...Thursday through Wednesday
Isolated to scattered thunderstorms possible Thursday and Friday.
Next noteworthy chance for widespread thunderstorm development is
Sunday.
Thunderstorm chances also develop Tuesday and Wednesday of next
week.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed this afternoon and evening.
$$
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
219 PM CDT Wed Jun 17 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-181930-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
219 PM CDT Wed Jun 17 2026 /319 PM EDT Wed Jun 17 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Significant Thunderstorm Risk...with an associated:
Level 3 of 5 Tornado Risk mainly south of the Kankakee River.
Level 3 of 5 Damaging Wind Risk...up to 65 mph.
Level 3 of 5 Large Hail Risk...up to half dollar size.
Significant Flooding Risk mainly near and south of I-80.
High Swim Risk Illinois Lake Michigan Beaches.
DISCUSSION...
Thunderstorms are expected this afternoon and early evening. The
strongest storms, currently favored south of the Kankakee River,
will be capable of producing large hail, damaging winds, and
potentially strong tornadoes. Farther north, damaging winds will
be the biggest concern with afternoon storms.
Thunderstorms today will also be capable of producing torrential
rainfall which could lead to localized flash flooding and sudden
river/stream rises.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday...
High Swim Risk Porter County Lake Michigan Beaches.
Saturday...
Limited Thunderstorm Risk.
Sunday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
Monday and Tuesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters will likely be needed this afternoon and evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 50 to 60 mph.
$$
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
219 PM CDT Wed Jun 17 2026
LMZ740>745-181930-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
219 PM CDT Wed Jun 17 2026
This Hazardous Weather Outlook is for portions of the Illinois
nearshore waters of Lake Michigan and the Indiana nearshore
waters of Lake Michigan.
.DAY ONE...Tonight.
Weather hazards expected...
Gale force winds and or very hazardous waves.
Significant Thunderstorm Risk...with an associated:
Thunderstorm Waterspout Risk
Level 3 of 5 Thunderstorm Wind Gust Risk...up to 50 knots.
Level 2 of 5 Hail Risk...up to quarter size.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday morning...
Hazardous conditions for small craft are likely.
Saturday...
Limited Thunderstorm Risk.
Sunday...
Hazardous conditions for small craft are likely.
Limited Thunderstorm Risk.
Monday...
Hazardous conditions for small craft are likely.
Tuesday...
Limited Thunderstorm Risk.
$$
Doom
Visit us at www.weather.gov/chicago
Hazardous Weather Outlook
National Weather Service Green Bay WI
209 PM CDT Wed Jun 17 2026
LMZ521-522-541>543-181915-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
209 PM CDT Wed Jun 17 2026
This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.
.DAY ONE...Tonight
There is a chance of thunderstorms through this evening. Any
thunderstorms will pose a hazard to mariners.
Conditions hazardous to small craft are expected south of Sturgeon
Bay from this afternoon through tonight.
.DAYS TWO THROUGH SEVEN...Thursday through Wednesday
There is a slight chance of thunderstorms on Thursday afternoon.
$$
MPC
Hazardous Weather Outlook
National Weather Service Green Bay WI
209 PM CDT Wed Jun 17 2026
WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-181915-
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-
209 PM CDT Wed Jun 17 2026
This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.
.DAY ONE...Tonight
There is a chance of thunderstorms through this evening. While
severe weather is not expected, rainfall amounts could exceed 1
inch over parts of central and east-central Wisconsin.
Dangerous swimming conditions are expected to develop along Lake
Michigan beaches through late tonight.
.DAYS TWO THROUGH SEVEN...Thursday through Wednesday
There is a slight chance of thunderstorms on Thursday afternoon,
but severe weather is not expected.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed tonight.
$$
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
105 PM CDT Wed Jun 17 2026
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-180515-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
105 PM CDT Wed Jun 17 2026
This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.
.DAY ONE...THIS AFTERNOON AND TONIGHT
Another round of strong to severe thunderstorms will be possible
through this evening as a cold front pushes through the region.
Most of the Outlook Area is in a Slight Risk, level 2 out of 5,
for severe weather. However west central Illinois is in an
Enhanced Risk, level 3 of 5. All severe weather hazards will be possible,
including tornadoes. Withe heavy rainfall already fallen from this
morning`s storm activity, localized flash flooding will also be a
threat, especially in areas that see multiple rounds of storms on
soaked ground. A Flood Watch is in effect for areas generally
along and south of the Highway 30 corridor through this evening.
A few tributary rivers will experience flooding or at least
within bank rises through the end of the week.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
The next main chance for thunderstorms will be Sunday and Sunday
night.There is still some uncertainty if these storms will have
the capability to be strong or severe.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed this afternoon into the evening.
$$
12
Hazardous Weather Outlook
National Weather Service La Crosse WI
850 AM CDT Wed Jun 17 2026
IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-181800-
Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-
Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau-
Adams-Vernon-Crawford-Richland-Grant-
850 AM CDT Wed Jun 17 2026
This Hazardous Weather Outlook is for portions of southeast
Minnesota...northeast Iowa and southwest into central Wisconsin.
.DAY ONE...Today and Tonight
Severe storms will be possible this afternoon and evening with
the potential for all hazards including large hail, damaging
winds, a few tornadoes, and heavy rainfall leading to localized
flooding.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
No action needed.
.EMERGENCY MANAGEMENT COORDINATION...
No webinar is scheduled.
$$
