Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 290850
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
250 AM CST THU JAN 29 2015

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...MULTIPLE LOW PRESSURE SYSTEMS ARE MOVING EASTWARD
THROUGH THE GREAT LAKES REGION THIS MORNING. ONE LOW PRESSURE OF
29.7 INCHES WILL PASS JUST SOUTH OF LAKE MICHIGAN EARLY THIS
MORNING...WHILE ANOTHER OF 29.8 INCHES WILL CONTINUE MOVING ACROSS
LAKE SUPERIOR EARLY THIS MORNING. THESE WILL CONSOLIDATE INTO A
29.6 LOW THIS EVENING ACROSS THE EASTERN GREAT LAKES. HIGH
PRESSURE OF 30.3 INCHES WILL BUILD FROM SOUTHERN CANADA THIS
EVENING TO OVER LAKE MICHIGAN ON FRIDAY AFTERNOON AND EVENING. LOW
PRESSURE OF 30.0 INCHES WILL MOVE ACROSS THE FAR NORTHERN GREAT
LAKES ON SATURDAY DRAGGING A COLD FRONT SOUTHWARD ACROSS THE LAKE
SATURDAY AFTERNOON AND NIGHT. AN EXPANSIVE HIGH PRESSURE CENTERED
OVER THE UPPER MIDWEST AT AROUND 30.7 INCHES ON SUNDAY WILL SLOWLY
BUILD INTO THE GREAT LAKES REGION SUNDAY NIGHT INTO MONDAY.


LMZ261-362-364-366-563-565-567-868-291700-
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 PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
250 AM CST THU JAN 29 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

...GALE WARNING IN EFFECT FROM 9 AM CST THIS MORNING THROUGH LATE
TONIGHT...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 2 PM CST THIS
AFTERNOON THROUGH LATE TONIGHT...

.TODAY...SOUTHWEST WINDS 15 TO 25 KT VEERING TO NORTHWEST TO 30
KT BY MID MORNING AND INCREASING TO GALES TO 40 KT IN THE
AFTERNOON. SNOW LIKELY THIS MORNING...THEN CHANCE OF SNOW SHOWERS
THIS AFTERNOON. HEAVY FREEZING SPRAY BY LATE AFTERNOON. WAVES 5 TO
8 FT OCCASIONALLY TO 10 FT BUILDING TO 8 TO 12 FT OCCASIONALLY TO
15 FT THIS AFTERNOON.
.TONIGHT...NORTH GALES TO 40 KT EASING TO 30 KT LATE. OCCASIONAL
45 KT GUSTS IN THE EVENING. HEAVY FREEZING SPRAY. CHANCE OF SNOW
SHOWERS. WAVES 10 TO 14 FT OCCASIONALLY TO 18 FT.
.FRIDAY...NORTH WINDS TO 30 KT EARLY BECOMING WEST 10 TO 15 KT
IN THE AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 7 TO
10 FT OCCASIONALLY TO 13 FT IN THE AFTERNOON.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT. SLIGHT CHANCE OF
SNOW SHOWERS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST 15 TO 25 KT.
SLIGHT CHANCE OF SNOW. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SATURDAY NIGHT...NORTH WINDS TO 30 KT. SLIGHT CHANCE OF SNOW.
WAVES BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
.SUNDAY...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST 15 TO 25 KT
SUNDAY NIGHT. CHANCE OF SNOW. WAVES SUBSIDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
.MONDAY...NORTHWEST WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-291700-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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-
250 AM CST THU JAN 29 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

...GALE WARNING IN EFFECT FROM 9 AM CST THIS MORNING THROUGH LATE
TONIGHT...

.TODAY...SOUTH WINDS 15 TO 25 KT BECOMING NORTHWEST BY MID MORNING
AND INCREASING TO GALES TO 35 KT BY LATE MORNING...THEN
INCREASING TO GALES TO 40 KT THIS AFTERNOON. RAIN AND SNOW LIKELY
THIS MORNING...THEN CHANCE OF SNOW SHOWERS THIS AFTERNOON. WAVES
6 TO 9 FT OCCASIONALLY TO 11 FT BUILDING TO 8 TO 12 FT
OCCASIONALLY TO 15 FT THIS AFTERNOON.
.TONIGHT...NORTHWEST GALES TO 40 KT BECOMING NORTH TO 30 KT LATE.
FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES 12 TO 16 FT
OCCASIONALLY TO 20 FT.
.FRIDAY...NORTH WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT LATE IN
THE MORNING...THEN BECOMING NORTHWEST 10 TO 20 KT EARLY IN THE
AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 7 TO 10 FT
OCCASIONALLY TO 13 FT IN THE AFTERNOON.
.FRIDAY NIGHT...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO
20 KT OVERNIGHT. WAVES SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7
FT.
.SATURDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING NORTHWEST. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT.
.SATURDAY NIGHT...NORTH WINDS 15 TO 25 KT BECOMING NORTHEAST.
CHANCE OF SNOW. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO
5 TO 8 FT OCCASIONALLY TO 10 FT.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KT. SNOW LIKELY. WAVES 5 TO
8 FT OCCASIONALLY TO 10 FT.
.MONDAY...NORTHWEST WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS.
WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.

$$

LMZ761-291700-
MAFOR 2910/
MICHIGAN NORTH...GALE WARNING IN EFFECT...
10430 11350 11737 11747 11750 11752 12852 19862 11852. CHANCE OF
SNOW SHOWERS THIS AFTERNOON AND THEN SNOW SHOWER LIKELY TONIGHT.
WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT BUILDING TO 8 TO 12 FT
OCCASIONALLY TO 15 FT THIS AFTERNOON. WAVES 10 TO 14 FT
OCCASIONALLY TO 18 FT TONIGHT.


MICHIGAN SOUTH...GALE WARNING IN EFFECT...
10430 11530 11637 11757 12750 13751. CHANCE OF SNOW SHOWERS THIS
AFTERNOON AND THEN SNOW SHOWERS LIKELY TONIGHT. WAVES 6 TO 9 FT
OCCASIONALLY TO 11 FT BUILDING TO 8 TO 12 FT OCCASIONALLY TO 15 FT
THIS AFTERNOON. WAVES 12 TO 16 FT OCCASIONALLY TO 20 FT TONIGHT.

$$

MTF




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