weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Small Craft Advisory


URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
403 AM EDT THU JUL 28 2016

...GUSTY AND PERSISTENT NORTHEAST WINDS TODAY THROUGH FRIDAY WILL
ALLOW WAVES TO BUILD...

.HIGH PRESSURE EXPANDING ACROSS THE NORTHERN GREAT LAKES TODAY WILL
FORCE A COLD FRONT INTO SOUTHWEST LOWER MI AND NORTHERN OHIO BY THE
END OF THE DAY. THE EXPECTED DEVELOPMENT OF WEAK LOW PRESSURE ALONG
THIS FRONT AND BUILDING HIGH PRESSURE ACROSS THE NORTHERN GREAT
LAKES WILL SUPPORT INCREASING NORTH-NORTHEASTERLY WINDS ACROSS THE
LAKES TODAY. GIVEN THE FETCH AND RELATIVELY WARM WATER TEMPERATURES,
THESE WINDS WILL BECOME RATHER GUSTY ACROSS SAGINAW BAY AND THE
SOUTHERN BASIN OF LAKE HURON. THE EXPECTED WINDS AND BUILDING WAVES
REMAIN SUPPORTIVE OF SMALL CRAFT ADVISORY CONDITIONS FOR THE
NEARSHORE WATERS OF LAKE HURON. THERE WILL BE SOME SLIGHT WEAKENING
OF THE NORTHEAST GRADIENT ON FRIDAY AS THE FRONTAL BOUNDARY AND WEAK
LOW PRESSURE SYSTEM SLIDES TO THE MID ATLANTIC. HOWEVER, THERE IS
STILL LIKELY TO BE SOME GUSTY WINDS OVER THE WARM NEARSHORE WATERS
OF LAKE HURON. FURTHER WEAKENING OF THE GRADIENT OVER THE WEEKEND
WILL SUPPORT REDUCED WIND SPEEDS AND WAVE HEIGHTS AND MORE
FAVORABLE BOATING CONDITIONS.

LHZ421-422-441>443-282100-
/O.EXT.KDTX.SC.Y.0046.160728T1500Z-160730T0200Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
403 AM EDT THU JUL 28 2016

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 11 AM THIS MORNING TO
10 PM EDT FRIDAY...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT FROM 11 AM THIS MORNING
TO 10 PM EDT FRIDAY.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 19 KNOTS FROM THE NORTHEAST WITH GUSTS
  UP TO 27 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL
  BE 5 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 7 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 6 PM EDT
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 6 PM EDT
  FRIDAY.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

HLO


Hazardous Weather Outlook


HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
419 AM CDT THU JUL 28 2016

LMZ643>646-290930-
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-
419 AM CDT THU JUL 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

NORTHEAST WINDS AND WAVES WILL APPROACH...BUT REMAIN BELOW SMALL
CRAFT ADVISORY LEVELS THIS AFTERNOON INTO TONIGHT. SMALL BOATS
SHOULD EXERCISE CAUTION.

THERE IS A CHANCE FOR THUNDERSTORMS TODAY AND TONIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THE PERSISTENT NORTHEAST WINDS AND MODERATE WAVES WILL APPROACH
SMALL CRAFT ADVISORY LEVELS INTO FRIDAY MORNING.

$$

REM
WWW.WEATHER.GOV/MKX

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
419 AM CDT THU JUL 28 2016

WIZ046-047-051-052-056>060-062>072-290930-
MARQUETTE-GREEN LAKE-FOND DU LAC-SHEBOYGAN-SAUK-COLUMBIA-DODGE-
WASHINGTON-OZAUKEE-IOWA-DANE-JEFFERSON-WAUKESHA-MILWAUKEE-
LAFAYETTE-GREEN-ROCK-WALWORTH-RACINE-KENOSHA-
419 AM CDT THU JUL 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL
WISCONSIN...SOUTH CENTRAL WISCONSIN AND SOUTHEAST WISCONSIN.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY INTO THIS
EVENING IN THE WESTERN FORECAST AREA...WITH LESSER CHANCES FOR
STORMS IN THE EAST. NO SEVERE WEATHER IS EXPECTED.

THERE WILL BE A MODERATE SWIM RISK AT LAKE MICHIGAN BEACHES LATE
THIS AFTERNOON AND EVENING...DUE TO DANGEROUS CURRENTS PRODUCED
BY BUILDING WAVES ON PERSISTENT NORTHEAST WINDS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE WILL BE A MODERATE SWIM RISK AT LAKE MICHIGAN BEACHES FRIDAY
AS PERSISTENT NORTHEAST WINDS KEEP WAVES HIGH ENOUGH TO PRODUCE
DANGEROUS CURRENTS NEAR SHORELINE STRUCTURES AND THE MOUTHS OF
RIVERS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED THE REMAINDER OF THE WEEK.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREEN BAY WI
401 AM CDT THU JUL 28 2016

LMZ521-522-541>543-290915-
THE BAY OF GREEN BAY SOUTH OF A LINE FROM CEDAR RIVER MI TO ROCK
ISLAND PASSAGE-LAKE MICHIGAN FROM WASHINGTON ISLAND TO SHEBOYGAN-
401 AM CDT THU JUL 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST LAKE
MICHIGAN AND THE WATERS OF GREEN BAY.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS MAY POSE A HAZARD TO BOATERS SOUTH OF KEWAUNEE TODAY.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS ALSO A CHANCE OF THUNDERSTORMS MONDAY NIGHT INTO
WEDNESDAY.

$$

TDH/ECKBERG

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREEN BAY WI
401 AM CDT THU JUL 28 2016

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-290915-
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-
401 AM CDT THU JUL 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST
WISCONSIN.

.DAY ONE...TODAY AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS OVER PARTS OF CENTRAL AND EAST
CENTRAL WISCONSIN TODAY, BUT SEVERE WEATHER IS NOT EXPECTED.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS ALSO A CHANCE OF THUNDERSTORMS FROM MONDAY NIGHT THROUGH
NEXT WEDNESDAY, BUT IT IS TOO EARLY TO DETERMINE IF SEVERE WEATHER
WILL OCCUR.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
427 AM EDT THU JUL 28 2016

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-290900-
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND 5NM
OFF SHORE-
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF SHORE-
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER SAGINAW
BAY-INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-
427 AM EDT THU JUL 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LAKE
HURON AND LAKE ST CLAIR.

.DAY ONE...TODAY AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS TODAY...MAINLY OVER LAKE ST
CLAIR AND WESTERN LAKE ERIE. THE STRONGEST STORMS WILL BE CAPABLE
OF PRODUCING WIND GUSTS TO 40 KNOTS. THUNDERSTORMS WILL TRACK VERY
SLOWLY FROM WEST TO EAST AT 10 KNOTS OR LESS.

A SMALL CRAFT ADVISORY REMAIN IN EFFECT TODAY AND TONIGHT FOR THE
NEARSHORE WATERS OF LAKE HURON INCLUDING SAGINAW BAY. A BEACH
HAZARD STATEMENT IS ALSO IN EFFECT FOR THESE AREAS DUE TO MODERATE
TO HIGH SWIM RISK.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A SMALL CRAFT ADVISORY REMAINS IN EFFECT FOR THE LAKE HURON
NEARSHORE WATERS THROUGH FRIDAY EVENING. AN ADDITIONAL BEACH
HAZARD STATEMENT WILL LIKELY BE NEEDED FOR FRIDAY.

THERE IS A CHANCE OF THUNDERSTORMS FRIDAY OVER LAKE ST CLAIR AND
WESTERN LAKE ERIE. THUNDERSTORMS WILL THEN BE POSSIBLE OVER ALL
OF THE CENTRAL GREAT LAKES FRIDAY NIGHT AND SATURDAY AS LOW
PRESSURE TRACKS ACROSS THE OHIO VALLEY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

$$

YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE
AT WWW.WEATHER.GOV/DETROIT (ALL LOWER CASE).

HLO

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
427 AM EDT THU JUL 28 2016

MIZ047-053-054-060>062-068>070-075-076-082-083-290900-
MIDLAND-SAGINAW-TUSCOLA-SHIAWASSEE-GENESEE-LAPEER-LIVINGSTON-OAKLAND-
MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE-
427 AM EDT THU JUL 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS TODAY AND TONIGHT...MAINLY
SOUTH AND WEST OF A LINE FROM BAY CITY TO PORT HURON. THESE STORMS
ARE NOT EXPECTED TO BE SEVERE...BUT STORMS TODAY MAY PRODUCE WIND
GUSTS TO 40 MPH. LOCALLY HEAVY RAINFALL IS ALSO POSSIBLE BOTH
TODAY AND TONIGHT. THUNDERSTORMS WILL TRACK VERY SLOWLY FROM WEST
TO EAST AT 10 MPH OR LESS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS A CHANCE OF THUNDERSTORMS FRIDAY NEAR THE OHIO BORDER.
THUNDERSTORMS WILL THEN BE POSSIBLE OVER ALL OF SOUTHEAST MICHIGAN
FRIDAY NIGHT AND SATURDAY AS LOW PRESSURE TRACKS ACROSS THE OHIO
VALLEY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
427 AM EDT THU JUL 28 2016

MIZ048-049-055-063-290900-
BAY-HURON-SANILAC-ST. CLAIR-
427 AM EDT THU JUL 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

A BEACH HAZARD STATEMENT IS IN EFFECT THIS AFTERNOON AND EVENING
DUE TO MODERATE TO HIGH SWIM RISK ALONG THE LAKE HURON SHORELINE.

THERE IS A CHANCE OF THUNDERSTORMS TODAY AND TONIGHT...MAINLY
SOUTH AND WEST OF A LINE FROM BAY CITY TO PORT HURON. THESE STORMS
ARE NOT EXPECTED TO BE SEVERE...BUT STORMS TODAY MAY PRODUCE WIND
GUSTS TO 40 MPH. LOCALLY HEAVY RAINFALL IS ALSO POSSIBLE BOTH
TODAY AND TONIGHT. THUNDERSTORMS WILL TRACK VERY SLOWLY FROM WEST
TO EAST AT 10 MPH OR LESS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A BEACH HAZARD STATEMENT WILL LIKELY BE NEEDED AGAIN ON FRIDAY FOR
HAZARDOUS SWIM CONDITIONS ALONG THE LAKE HURON SHORELINE.

THUNDERSTORMS ARE POSSIBLE OVER ALL OF SOUTHEAST MICHIGAN FRIDAY
NIGHT AND SATURDAY AS LOW PRESSURE TRACKS ACROSS THE OHIO VALLEY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
345 AM EDT THU JUL 28 2016

LMZ844>849-MIZ037>040-043>046-050>052-056>059-064>067-071>074-
290745-
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-
345 AM EDT THU JUL 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

SCATTERED NON SEVERE THUNDERSTORMS ARE EXPECTED INTO THIS EVENING.
GUSTY WINDS, LOCALLY HEAVY RAINFALL AND CLOUD TO GROUND LIGHTING
WOULD BE THE GREATEST THREAT FROM THESE STORMS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SCATTERED NON SEVERE THUNDERSTORMS ARE POSSIBLE INTO SATURDAY THEN
AGAIN ON WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED.

$$

WDM

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
422 PM CDT WED JUL 27 2016

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-282130-
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-
422 PM CDT WED JUL 27 2016

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

.DAY ONE...TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS TONIGHT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE IS A CHANCE OF THUNDERSTORMS THROUGH THE WEEKEND.

&&

$$

LENNING

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSCHICAGO
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

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