weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Gaylord MI
353 PM EDT Wed Sep 20 2017

LHZ345>349-LMZ323-341-342-344>346-LSZ321-322-MIZ008-015>036-041-
042-212000-
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-Chippewa-
Mackinac-Emmet-Cheboygan-Presque Isle-Charlevoix-Leelanau-Antrim-
Otsego-Montmorency-Alpena-Benzie-Grand Traverse-Kalkaska-Crawford-
Oscoda-Alcona-Manistee-Wexford-Missaukee-Roscommon-Ogemaw-Iosco-
Gladwin-Arenac-
353 PM EDT Wed Sep 20 2017

This hazardous weather outlook is for northern Lower Michigan...
eastern Upper Michigan...and adjacent nearshore waters of Lake
Michigan...Lake Huron and Lake Superior.

.DAY ONE...This afternoon and tonight.

There is a chance for thunderstorms tonight, especially after
midnight. Severe storms are not expected.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

There is a chance of thunderstorms Thursday afternoon. A stronger
storm with gusty winds is possible.


.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

&&

For more information visit http://weather.gov/gaylord.

$$

Hazardous Weather Outlook
National Weather Service Marquette MI
442 PM EDT Wed Sep 20 2017

MIZ001>007-009>014-084-085-211100-
Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce-
Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft-
Southern Houghton-Northern Schoolcraft-
442 PM EDT Wed Sep 20 2017 /342 PM CDT Wed Sep 20 2017/

This Hazardous Weather Outlook is for portions of western Upper
Michigan and central Upper Michigan.

.DAY ONE...Tonight

Thunderstorms are possible over west and central Upper Michigan
tonight. Isolated severe thunderstorms, producing damaging winds
and large hail, are possible this evening, mainly over south central
Upper Michigan.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Thunderstorms are possible Thursday night into early Friday
morning and then periodically over western Upper Michigan
Saturday through Monday. Thunderstorms with locally heavy rain are
possible across west and central Upper Michigan Tuesday into
early Wednesday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to submit reports of hail or
strong winds to the National Weather Service in Marquette. The
public may also submit reports on our webpage, via phone or
through Facebook or Twitter.

$$

Hazardous Weather Outlook
National Weather Service Marquette MI
442 PM EDT Wed Sep 20 2017

LSZ162-240>251-263>267-211100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
442 PM EDT Wed Sep 20 2017 /342 PM CDT Wed Sep 20 2017/

This Hazardous Weather Outlook is for portions of Eastern Lake
Superior...Central Lake Superior and Western Lake Superior.

.DAY ONE...Tonight

Thunderstorms are possible over the eastern two thirds of Lake
Superior tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Locally dense fog is possible Thursday morning.

Thunderstorms are possible Thursday night into Friday morning and
then periodically over mainly western Lake Superior Saturday
through Monday. Thunderstorms are possible across much of Lake
Superior Tuesday into early Wednesday.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

$$

Hazardous Weather Outlook
National Weather Service Marquette MI
442 PM EDT Wed Sep 20 2017

LMZ221-248-250-211100-
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
442 PM EDT Wed Sep 20 2017

This Hazardous Weather Outlook is for portions of Northern Lake
Michigan.

.DAY ONE...Tonight

Thunderstorms are possible tonight and a few storms this evening may
become severe, producing large hail and damaging winds.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Thunderstorms are possible late Thursday night, and then again
Tuesday into early Wednesday.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

$$

Voss

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
337 PM CDT Wed Sep 20 2017

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-212045-
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-
337 PM CDT Wed Sep 20 2017

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

.DAY ONE...Tonight.

There is a chance of thunderstorms mainly over the northern half
of the lake. Patchy fog is possible overnight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

&&

$$

Visit us at http://weather.gov/chicago

Follow us on Facebook, Twitter, and Youtube at:
www.facebook.com/nwschicago
www.twitter.com/nwschicago
www.youtube.com/nwschicago

Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
324 PM CDT Wed Sep 20 2017

LMZ643>646-212030-
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-
324 PM CDT Wed Sep 20 2017

This Hazardous Weather Outlook is for portions of Lake Michigan.

.DAY ONE...Tonight

A small craft advisory is in effect for the nearshore waters
from Port Washington to Sheboygan until 9 pm.

There is a chance for thunderstorms this evening.

.DAYS TWO THROUGH SEVEN...Thursday through Wednesday

There is a chance for thunderstorms Tuesday.

$$
Collar
www.weather.gov/mkx

Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
324 PM CDT Wed Sep 20 2017

WIZ046-047-051-052-056>060-062>072-212030-
Marquette-Green Lake-Fond Du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
324 PM CDT Wed Sep 20 2017

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

.DAY ONE...Tonight

There is a chance for thunderstorms late this afternoon through
mid evening, with the potential for a few storms to become severe
mainly in south central Wisconsin.

There is a high swim risk for the beaches along Lake Michigan in
Sheboygan and Ozaukee counties through 9 pm. Life threatening
waves and currents are expected along the shore. Stay out of the
water.

There is a moderate swim risk for the beaches along Lake Michigan
in Milwaukee, Racine, and Kenosha counties through 9 pm. Breaking
waves and currents are expected. Stay away from dangerous areas
like piers, breakwalls, and river outlets.

.DAYS TWO THROUGH SEVEN...Thursday through Wednesday

There is a chance for thunderstorms Monday and Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed late this afternoon into mid
evening.

$$

Hazardous Weather Outlook
National Weather Service Green Bay WI
301 PM CDT Wed Sep 20 2017

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-212015-
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-
301 PM CDT Wed Sep 20 2017

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

.DAY ONE...Tonight

There is a chance of thunderstorms across the area through about
midnight. A few severe storms with damaging winds, torrential
rain and hail are possible, especially south of Highway 29 between
4 pm and 10 pm.

Gusty south winds and high waves will bring hazardous swimming
conditions to beaches along Lake Michigan through late this
evening.

.DAYS TWO THROUGH SEVEN...Thursday through Wednesday

There is a small chance of thunderstorms across central Wisconsin
late Thursday afternoon, and much of northern Wisconsin Thursday
night. There is also a chance of storms across the far north
Saturday into Sunday night. These storms are not expected to be
severe.

There is a chance of thunderstorms at times Monday into Tuesday
night, but it is too early to determine if any of these storms
would become severe.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed through this evening. Spotters
are requested to report wind gusts over 40 mph and hail over a
half an inch in diameter.

$$

Hazardous Weather Outlook
National Weather Service Green Bay WI
301 PM CDT Wed Sep 20 2017

LMZ521-522-541>543-212015-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
301 PM CDT Wed Sep 20 2017

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

.DAY ONE...Tonight

Winds and waves on the waters of Lake Michigan and Green Bay will
pose a hazard to small craft through late this evening. There is
also a chance of thunderstorms. A few of these storms could
contain strong wind gusts, heavy rainfall and hail this evening.

.DAYS TWO THROUGH SEVEN...Thursday through Wednesday

There is a small chance of thunderstorms Thursday night north of
Sturgeon Bay, and then across the entire area Monday night
through Tuesday night.

$$
Kieckbusch/MPC

HAZARDOUS WEATHER OUTLOOK
National Weather Service Grand Rapids MI
420 AM EDT Wed Sep 20 2017

LMZ844>849-MIZ037>040-043>046-050>052-056>059-064>067-071>074-
210830-
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-Mason-Lake-
Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-Montcalm-
Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-Ingham-
Van Buren-Kalamazoo-Calhoun-Jackson-
420 AM EDT Wed Sep 20 2017

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

Fog could be locally dense to start the day today. This may result
in some hazardous travel conditions.

A few thunderstorms are possible tonight. Severe weather is not
forecasted.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Scattered thunderstorms are possible Thursday. A few strong storms
could occur with gusty winds and frequent cloud to ground
lightning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

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
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE