Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 230148
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
848 PM CDT TUE APR 22 2014

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...HIGH PRESSURE OF 30.2 INCHES EXTENDS UP AND DOWN THE
MISSISSIPPI RIVER VALLEY THIS EVENING AND WILL SHIFT EAST ACROSS
LAKE MICHIGAN MIDDAY WEDNESDAY. TWO AREAS OF LOW PRESSURE AROUND
29.6 INCHES WILL MOVE INTO THE NORTHERN AND SOUTHERN PLAINS
WEDNESDAY NIGHT. THE SOUTHERN LOW WILL LIFT ACROSS LAKE MICHIGAN
THURSDAY NIGHT WHILE THE NORTHERN LOW WILL MOVE ACROSS THE LAKE
MIDDAY FRIDAY. THE LOWS WILL EVENTUALLY MERGE OVER THE EASTERN
LAKES REGION FRIDAY NIGHT. RIDGING AVERAGING 30.2 INCHES WILL
EXTEND SOUTH FROM THE CANADIAN PRAIRIES...AND DRIFT EAST ACROSS
LAKE MICHIGAN SATURDAY.

LMZ261-362-364-366-563-565-567-868-230945-
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-
848 PM CDT TUE APR 22 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.TONIGHT...NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO 15 KT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO 4 FT.
.WEDNESDAY...NORTH WINDS 5 TO 10 KT BECOMING VARIABLE. WAVES 1 TO
3 FT.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 15 KT. SLIGHT CHANCE OF
SHOWERS. WAVES 1 TO 3 FT.
.THURSDAY...EAST WINDS INCREASING TO 15 TO 25 KT. SHOWERS LIKELY
WITH A CHANCE OF THUNDERSTORMS IN THE MORNING...THEN SHOWERS AND
THUNDERSTORMS LIKELY IN THE AFTERNOON. WAVES BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.THURSDAY NIGHT...SOUTHEAST WINDS 15 TO 25 KT BECOMING SOUTH
10 TO 20 KT. SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE
EVENING...THEN SHOWERS OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT.
.FRIDAY...SOUTHWEST WINDS 10 TO 15 KT BECOMING NORTHWEST 15 TO 25
KT. CHANCE OF SHOWERS. WAVES 2 TO 4 FT.
.FRIDAY NIGHT...NORTHWEST WINDS 15 TO 25 KT. CHANCE OF SHOWERS.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SATURDAY...NORTH WINDS 15 TO 25 KT. WAVES 4 TO 6 FT OCCASIONALLY
TO 8 FT.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KT. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.

WAVE FORECAST IS FOR ICE FREE AREAS

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-230945-
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-
848 PM CDT TUE APR 22 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TONIGHT...NORTH WINDS 10 TO 20 KT. WAVES 3 TO 5 FT OCCASIONALLY
TO 7 FT SUBSIDING TO 2 TO 4 FT.
.WEDNESDAY...NORTH WINDS 10 TO 15 KT BECOMING VARIABLE 5 TO 10 KT.
WAVES 1 TO 3 FT.
.WEDNESDAY NIGHT...VARIABLE WINDS 5 TO 10 KT BECOMING SOUTHEAST 10
TO 20 KT. CHANCE OF SHOWERS. WAVES 1 TO 3 FT.
.THURSDAY...SOUTHEAST WINDS TO 30 KT. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING...THEN SHOWERS
LIKELY WITH A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES
BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.THURSDAY NIGHT...SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST.
SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE EVENING...THEN
CHANCE OF SHOWERS OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT.
.FRIDAY...WEST WINDS TO 30 KT BECOMING NORTHWEST. WAVES 3 TO 5
OCCASIONALLY TO 7 FT.
.FRIDAY NIGHT...NORTHWEST WINDS TO 30 KT BECOMING NORTH. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT.
.SATURDAY...NORTH WINDS 15 TO 25 KT. WAVES 4 TO 6 FT OCCASIONALLY
TO 8 FT.
.SUNDAY...NORTHEAST WINDS TO 30 KT. CHANCE OF SHOWERS. WAVES 4 TO
6 FT OCCASIONALLY TO 8 FT.


$$
LMZ761-230945-
MAFOR 2303/
MICHIGAN NORTH 10830 12820 11810 11800 13900 11210. WAVES 3 TO 5
FT OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO 4 FT TONIGHT. WAVES 1 TO
3 FT WEDNESDAY AND WEDNESDAY EVENING.

MICHIGAN SOUTH 13820 11810 14900. WAVES 3 TO 5 FT OCCASIONALLY TO
7 FT SUBSIDING TO 2 TO 4 FT TONIGHT. WAVES 1 TO 3 FT WEDNESDAY AND
WEDNESDAY EVENING.

$$

MDB





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