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Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Gaylord MI
1100 AM EDT Sun Aug 20 2017

LHZ345>349-LMZ323-341-342-344>346-LSZ321-322-MIZ008-015>036-041-
042-211100-
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-
1100 AM EDT Sun Aug 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 late tonight. Severe storms
are not expected.

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

There is a chance for thunderstorms at times Monday through
Tuesday, especially late Monday night and Tuesday morning.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any significant weather and
rainfall amounts to the National Weather Service. Reports may be
made one of three ways:

Online:   weather.gov/gaylord
Facebook: facebook.com/nwsgaylord

Twitter:  twitter.com/nwsgaylord

&&

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

$$

Hazardous Weather Outlook
National Weather Service Green Bay WI
558 AM CDT Sun Aug 20 2017

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-
558 AM CDT Sun Aug 20 2017

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

.DAY ONE...Today and Tonight

Gusty south winds this afternoon and evening will produce waves
hazardous to small craft along the Door County shoreline of Lake
Michigan. There is a chance for thunderstorms with gusty winds
tonight across the entire nearshore area.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms will be possible at times Monday into Tuesday.
Heavy rainfall and lightning will pose a hazard to boaters,
especially toward Monday night.

$$

TDH/Uhlmann

Hazardous Weather Outlook
National Weather Service Green Bay WI
558 AM CDT Sun Aug 20 2017

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-
558 AM CDT Sun Aug 20 2017

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

.DAY ONE...Today and Tonight

Thunderstorms are possible across north-central Wisconsin this
afternoon. The chance for storms will expand south and east during
the evening and overnight hours. A few of the storms over the
north this afternoon and evening could be strong or severe, and
produce large hail and damaging winds.

The storms will diminish as they continue southward overnight.
Severe storms are not expected during this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Storms will likely become more numerous again late Monday through
Monday night, and continue into Tuesday. This time the storms are
most likely to be focused in central and east-central Wisconsin.
Some of the storms during this period could produce torrential
rainfall which may result in some ponding of water on roads. There
remains uncertainty over whether the risk for severe weather will
extend into central and northern Wisconsin, or remain to the south.
Be sure go monitor later forecasts for updated information.

.SPOTTER INFORMATION STATEMENT...

Formal spotter activation is not anticipated to be needed today
or tonight at this time.

$$

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
502 AM CDT Sun Aug 20 2017

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-211015-
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-
502 AM CDT Sun Aug 20 2017

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

.DAY ONE...Today and Tonight.

There is a chance of thunderstorms over the northern portions of
the lake tonight.

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

There are periodic chances for thunderstorms Monday through
Tuesday.

&&

$$

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Hazardous Weather Outlook
National Weather Service Marquette MI
523 AM EDT Sun Aug 20 2017

LSZ162-240>251-263>267-210930-
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-
523 AM EDT Sun Aug 20 2017 /423 AM CDT Sun Aug 20 2017/

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

.DAY ONE...Today and Tonight

Thunderstorms are possible over the east half of Lake Superior
this afternoon into the overnight hours.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

No hazardous weather is expected.

.SPOTTER INFORMATION STATEMENT...

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

$$

Hazardous Weather Outlook
National Weather Service Marquette MI
523 AM EDT Sun Aug 20 2017

MIZ001>007-009>014-084-085-210930-
Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce-
Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft-
Southern Houghton-Northern Schoolcraft-
523 AM EDT Sun Aug 20 2017 /423 AM CDT Sun Aug 20 2017/

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

.DAY ONE...Today and Tonight

Thunderstorms are possible this afternoon across the west, and
then across central potions of Upper Michigan this evening into the
overnight hours. Small hail and gusty winds will be possible with
stronger storms.

There is a moderate swim risk for Schoolcraft county beaches this
afternoon.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms are possible over mainly south central Upper
Michigan Monday night into early Tuesday.

There will be a moderate to high swim risk along Alger and
Marquette beaches on Wednesday.

.SPOTTER INFORMATION STATEMENT...

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

$$

Hazardous Weather Outlook
National Weather Service Marquette MI
523 AM EDT Sun Aug 20 2017

LMZ221-248-250-210930-
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-
523 AM EDT Sun Aug 20 2017

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

.DAY ONE...Today and Tonight

Thunderstorms are possible tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms are possible Monday and Monday night.

.SPOTTER INFORMATION STATEMENT...

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

$$

Ritzman

Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
325 AM CDT Sun Aug 20 2017

WIZ046-047-051-052-056>060-062>072-210830-
Marquette-Green Lake-Fond Du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
325 AM CDT Sun Aug 20 2017

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

.DAY ONE...Today and Tonight

There are chances for thunderstorms mainly tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms are expected Monday night, with chances for
thunderstorms Monday and Tuesday morning. There is a slight risk
for severe storms later Monday into Monday night. Damaging winds,
heavy rainfall and hail are possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed later Monday into Monday night.

$$

Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
325 AM CDT Sun Aug 20 2017

LMZ643>646-210830-
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-
325 AM CDT Sun Aug 20 2017

This Hazardous Weather Outlook is for portions of Lake Michigan.

.DAY ONE...Today and Tonight

There are chances for thunderstorms mainly tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms are expected Monday night, with chances for
thunderstorms Monday and Tuesday morning. There is a slight risk
for severe storms later Monday into Monday night. Damaging winds
and hail are possible.

$$
Wood
www.weather.gov/mkx

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NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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