Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 111446
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
846 AM CST WED JAN 11 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN.

WAVES ARE PROVIDED AS A RANGE OF SIGNIFICANT WAVE HEIGHTS...WHICH
IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES...ALONG
WITH THE AVERAGE HEIGHT OF THE HIGHEST 10 PERCENT OF THE WAVES
WHICH WILL OCCASIONALLY BE ENCOUNTERED.

.SYNOPSIS...THE 28.9 INCH LOW RESIDES OVER THE HUDSON BAY THIS
MORNING. THIS LOW WILL CONTINUE TO SHIFT NORTHWARD TODAY.
MEANWHILE...A TROUGH OF LOW PRESSURE AVERAGING 29.7 INCHES WILL
DEVELOP ALONG A SOUTHWARD SINKING COLD FRONTAL BOUNDARY LATER
TODAY. THIS TROUGH WILL EXTEND FROM MICHIGAN THROUGH THE SOUTHERN
PLAINS BY THIS EVENING. THE TROUGH WILL SHIFT OVER THE EASTERN
GREAT LAKES BY THURSDAY MORNING AND REACH EASTERN QUEBEC THURSDAY
NIGHT. MEANWHILE...A 29.4 INCH LOW WILL TRAVEL ACROSS SOUTHERN
CANADA WEDNESDAY NIGHT AND THURSDAY...AND THEN WEAKEN AND MERGE
WITH THE AFOREMENTIONED LOW PRESSURE TROUGH OVER QUEBEC. THE LOWS
COLD FRONT WILL SWEEP ACROSS THE LAKE THURSDAY EVENING. A LARGE
30.8 INCH HIGH BUILDS OVER THE PLAINS THURSDAY NIGHT AND SPREADS
OVER THE LAKE FRIDAY.

LMZ261-362-364-366-563-565-112245-
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-
846 AM CST WED JAN 11 2017

TWO RIVERS WI TO MANISTEE MI NORTH...

.REST OF TODAY...SOUTHWEST WINDS 15 TO 25 KT VEERING TO NORTHWEST
10 TO 20 KT LATE. PERIODS OF SNOW. WAVES 4 TO 7 FT OCCASIONALLY
TO 9 FT.
.TONIGHT...NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
SNOW LIKELY WITH A CHANCE OF LIGHT FREEZING RAIN IN THE EVENING...
THEN CHANCE OF LIGHT FREEZING DRIZZLE AND SLIGHT CHANCE OF SNOW
OVERNIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.THURSDAY...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST LATE IN
THE MORNING...THEN BECOMING WEST EARLY IN THE AFTERNOON AND
INCREASING TO 30 KT LATE. CHANCE OF SNOW IN THE MORNING. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 4 TO 6 FT OCCASIONALLY
TO 8 FT.
.THURSDAY NIGHT...WEST WINDS TO 30 KT BECOMING NORTHWEST. WAVES
5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 1 TO 3 FT.
.FRIDAY NIGHT...WEST WINDS 5 TO 10 KT BECOMING SOUTHWEST 10 TO
20 KT OVERNIGHT. WAVES 1 TO 2 FT.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST. WAVES 1 TO
2 FT.
.SUNDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO 20 KT.
WAVES 1 TO 2 FT.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-112245-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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-
846 AM CST WED JAN 11 2017

TWO RIVERS WI TO MANISTEE MI SOUTH...

.REST OF TODAY...SOUTH WINDS AROUND 25 KT BECOMING SOUTHWEST 10
TO 20 KT LATE. CHANCE OF RAIN...OR LIGHT FREEZING RAIN AND SNOW
THIS AFTERNOON. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.TONIGHT...NORTHWEST WINDS 15 TO 25 KT BECOMING NORTH. RAIN AND
LIGHT FREEZING RAIN LIKELY WITH A CHANCE OF SNOW IN THE EVENING...
THEN A CHANCE OF LIGHT FREEZING DRIZZLE...RAIN AND SNOW
OVERNIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.THURSDAY...NORTH WINDS 10 TO 20 KT BECOMING WEST 15 TO 25 KT.
CHANCE OF LIGHT FREEZING RAIN AND SNOW IN THE MORNING. WAVES 3 TO
5 FT OCCASIONALLY TO 7 FT.
.THURSDAY NIGHT...NORTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.FRIDAY...NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST. WAVES 4 TO
6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO 4 FT.
.FRIDAY NIGHT...EAST WINDS 10 TO 20 KT BECOMING SOUTHEAST. WAVES
1 TO 3 FT.
.SATURDAY...SOUTHEAST WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT. WAVES 1 TO 2 FT.
.SUNDAY...NORTHEAST WINDS 5 TO 10 KT VEERING TO SOUTHEAST. WAVES
1 FT OR LESS.

$$
LMZ761-112245-
MAFOR 1116/
MICHIGAN NORTH 11537 11637 11727 11837 12830 12820. CHANCE OF
LIGHT FREEZING RAIN THIS EVENING. CHANCE OF SNOW THURSDAY
MORNING. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT TODAY AND TONIGHT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT THURSDAY MORNING.

MICHIGAN SOUTH 11440 11430 11526 11736 11836 11830 12820. CHANCE
OF RAIN THIS AFTERNOON. CHANCE OF SNOW AND LIGHT SLEET THURSDAY
MORNING. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT TODAY AND TONIGHT.
WAVES SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT THURSDAY
MORNING.

$$


KJB

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/LOT/GLFTABLE (ALL LOWER CASE)

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES (ALL LOWER CASE)



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