Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 240153
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
853 PM CDT SAT MAY 23 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...HIGH PRESSURE OF 30.4 INCHES CENTERED OVER THE MID
ATLANTIC COAST THIS EVENING...WILL SLOWLY MOVE EAST ON SUNDAY.
A 29.6 INCH LOW WILL FORM OVER THE CENTRAL PLAINS EARLY MONDAY
MORNING AND MOVE OVER LAKE SUPERIOR MONDAY NIGHT...AS IT REACHES
QUEBEC TUESDAY AFTERNOON. THE LOWS COLD FRONT PASSES OVER THE LAKE
TUESDAY NIGHT INTO WEDNESDAY. ANOTHER WEAK LOW MAY ACCOMPANY THE
COLD FRONT AS IT MOVES OVER THE SOUTHERN END OF THE LAKE. HIGH
PRESSURE AVERAGING 30.1 INCHES OVER THE SOUTHEAST U.S. SPREADS
NORTH OVER THE LAKE WEDNESDAY AND EVENTUALLY PUSHES EAST LATE
NEXT WEEK.

LMZ261-362-364-366-563-565-567-868-240800-
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-
853 PM CDT SAT MAY 23 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.REST OF TONIGHT...SOUTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10
TO 15 KT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 1 TO
3 FT.
.SUNDAY...SOUTH WINDS 10 TO 15 KT. PATCHY FOG IN THE AFTERNOON.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO
3 FT.
.SUNDAY NIGHT...SOUTH WINDS 10 TO 15 KT BECOMING SOUTHEAST 10 TO
20 KT. AREAS OF FOG. SHOWERS. WAVES 1 TO 3 FT BUILDING TO 2 TO 4
FT.
.MONDAY...SOUTH WINDS TO 30 KT. SHOWERS IN THE MORNING. AREAS OF
FOG. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.MONDAY NIGHT...SOUTH WINDS TO 30 KT. AREAS OF FOG. CHANCE OF
SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 4 TO 7 FT OCCASIONALLY
TO 9 FT.
.TUESDAY...SOUTH WINDS 15 TO 25 KT. AREAS OF FOG. CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.TUESDAY NIGHT...SOUTH WINDS 5 TO 10 KT BECOMING SOUTHWEST. AREAS
OF FOG. CHANCE OF SHOWERS. WAVES 2 TO 4 FT.
.WEDNESDAY...WEST WINDS 5 TO 10 KT BECOMING SOUTHWEST. AREAS OF
FOG. WAVES 1 TO 2 FT.
.THURSDAY...SOUTH WINDS 5 TO 10 KT BECOMING VARIABLE IN THE
AFTERNOON. AREAS OF FOG. WAVES 1 TO 2 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-240800-
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-
853 PM CDT SAT MAY 23 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.REST OF TONIGHT...SOUTHEAST WINDS 10 TO 15 KT BECOMING SOUTH.
WAVES 1 TO 3 FT.
.SUNDAY...SOUTH WINDS 5 TO 10 KT BECOMING SOUTHEAST 10 TO 15 KT
EARLY IN THE AFTERNOON...THEN INCREASING TO 10 TO 20 KT LATE.
SLIGHT CHANCE OF SHOWERS IN THE MORNING...THEN CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE AFTERNOON. PATCHY FOG IN THE AFTERNOON.
WAVES 1 TO 3 FT.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH 15 TO
25 KT. AREAS OF FOG. SHOWERS LIKELY. WAVES 2 TO 4 FT.
.MONDAY...SOUTH WINDS TO 30 KT. SHOWERS AND THUNDERSTORMS LIKELY
IN THE MORNING. AREAS OF FOG. WAVES 4 TO 7 FT OCCASIONALLY TO
9 FT.
.MONDAY NIGHT...SOUTH WINDS 15 TO 25 KT. AREAS OF FOG. CHANCE OF
SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY
TO 8 FT.
.TUESDAY...SOUTH WINDS 10 TO 20 KT. AREAS OF FOG. CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE MORNING...THEN SHOWERS AND
THUNDERSTORMS LIKELY IN THE AFTERNOON. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.TUESDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. AREAS OF FOG.
CHANCE OF SHOWERS. WAVES 1 TO 3 FT.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 10 KT BECOMING WEST. AREAS OF
FOG. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 2 FT.
.THURSDAY...EAST WINDS 5 TO 10 KT BECOMING VARIABLE. AREAS OF
FOG. WAVES 1 FT OR LESS.

$$
LMZ761-240800-
MAFOR 2404/
MICHIGAN NORTH 11530 11520 11510 14410 11416. PATCHY FOG
SUNDAY AFTERNOON AND SUNDAY EVENING. CHANCE OF SHOWERS AND
THUNDERSTORMS SUNDAY AFTERNOON. WAVES 3 TO 5 FT OCCASIONALLY TO
7 FT SUBSIDING TO 1 TO 3 FT OVERNIGHT. WAVES 1 TO 3 FT SUNDAY
AND SUNDAY EVENING.

MICHIGAN SOUTH 12310 11410 12400 11310 11320 11326. PATCHY FOG
SUNDAY AFTERNOON AND SUNDAY EVENING. CHANCE OF SHOWERS AND
THUNDERSTORMS SUNDAY AFTERNOON. WAVES 1 TO 3 FT TONIGHT AND
SUNDAY. WAVES 2 TO 4 FT SUNDAY EVENING.

$$


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