Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 250803
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
303 AM CDT MON MAY 25 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...A LOW PRESSURE OF 29.6 INCHES OVER THE MIDDLE
MISSOURI VALLEY WILL QUICKLY LIFT NORTH REACHING LAKE SUPERIOR
THIS EVENING. THE LOW WILL THEN WEAKEN AND MOVE INTO CENTRAL
QUEBEC BY MIDDAY TUESDAY. AN ASSOCIATED FRONTAL BOUNDARY WILL
REMAIN OVER THE NORTHERN PORTION OF LAKE MICHIGAN TUESDAY...AS A
LOW PRESSURE OF 29.8 INCHES LIFTS NORTHEAST ACROSS LAKE MICHIGAN
LATE TUESDAY NIGHT. A HIGH PRESSURE RIDGE AVERAGING 30.1 INCHES
WILL MOVE OVER THE GREAT LAKES WEDNESDAY NIGHT INTO THURSDAY.

LMZ261-362-364-366-563-565-567-868-251530-
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-
303 AM CDT MON MAY 25 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...SOUTH WINDS TO 30 KT BECOMING SOUTHWEST. AREAS OF FOG.
NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS THIS MORNING... THEN
SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS THIS AFTERNOON.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
.TONIGHT...SOUTHWEST WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT.
AREAS OF FOG. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO
3 TO 5 FT OCCASIONALLY TO 7 FT.
.TUESDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH 5 TO 10 KT.
AREAS OF FOG. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 3 TO
5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 1 TO 3 FT.
.TUESDAY NIGHT...SOUTH WINDS 5 TO 10 KT BECOMING SOUTHWEST. AREAS
OF FOG. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN THE
EVENING...THEN CHANCE OF SHOWERS OVERNIGHT. WAVES 1 TO 3 FT.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 10 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING. WAVES 1 TO 2 FT.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KT. WAVES 1 FT OR
LESS.
.THURSDAY...SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH. WAVES
1 TO 2 FT.
.FRIDAY...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-251530-
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-
303 AM CDT MON MAY 25 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...SOUTH WINDS TO 30 KT BECOMING SOUTHWEST. AREAS OF FOG.
SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS THIS MORNING...THEN
ISOLATED SHOWERS THIS AFTERNOON. WAVES 3 TO 5 FT OCCASIONALLY TO 7
FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
.TONIGHT...SOUTHWEST WINDS 20 TO 25 KT BECOMING SOUTH 10 TO
20 KT. AREAS OF FOG. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT
SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.TUESDAY...SOUTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
AREAS OF FOG. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
MORNING...THEN SHOWERS AND THUNDERSTORMS LIKELY IN THE AFTERNOON.
WAVES 2 TO 4 FT.
.TUESDAY NIGHT...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST.
AREAS OF FOG. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN
THE EVENING...THEN CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT.
WAVES 1 TO 3 FT.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 15 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING...THEN CHANCE OF SHOWERS IN THE
AFTERNOON. WAVES 1 TO 3 FT.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KT. WAVES 1 TO 3 FT.
.THURSDAY...SOUTHWEST WINDS 5 TO 10 KT BECOMING SOUTHEAST. WAVES
2 FT OR LESS.
.FRIDAY...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FT.

$$

LMZ761-251530-
MAFOR 2510/
MICHIGAN NORTH 12446 12543 12543 11533 11523. CHANCE OF SHOWERS
LATE THIS EVENING. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING
TO 4 TO 7 FT OCCASIONALLY TO 9 FT TODAY. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT TONIGHT SUBSIDING TO 3 TO 5 FT OCCASIONALLY
TO 7 FT.

MICHIGAN SOUTH 11446 11443 12543 12533 12423. CHANCE OF SHOWERS
TONIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 4 TO 7
FT OCCASIONALLY TO 9 FT TODAY. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT
SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT TONIGHT.

$$


BEACHLER


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