Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 251950
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
250 PM CDT MON APR 25 2016

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...AN AREA OF LOW PRESSURE OVER CENTRAL WISCONSIN
AVERAGING 29.4 INCH WILL WEAKEN TO 29.6 INCHES AS IT PASSES OVER
LOWER MICHIGAN LATE TONIGHT. ANOTHER 29.4 INCH LOW FORMS OVER THE
CENTRAL PLAINS WEDNESDAY AND THEN SLIDES OVER CENTRAL ILLINOIS AT
29.7 INCHES THURSDAY. BROAD HIGH PRESSURE AVERAGING 30.2 INCHES
SPREADS OVER THE LAKES FRIDAY AND SATURDAY WHILE A 29.5 INCH LOW
FORMS OVER OKLAHOMA SATURDAY MORNING.

LMZ261-362-364-366-563-565-260330-
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-
250 PM CDT MON APR 25 2016

TWO RIVERS WI TO MANISTEE MI NORTH

...GALE WARNING IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...EAST GALES TO 35 KT BECOMING NORTHEAST GALES TO 40 KT.
SHOWERS LIKELY WITH SLIGHT CHANCE OF THUNDERSTORMS THIS EVENING...
THEN CHANCE OF SHOWERS OVERNIGHT. WAVES 6 TO 9 FT OCCASIONALLY TO
11 FT.
.TUESDAY...NORTHEAST GALES TO 35 KT DIMINISHING TO 15 TO 25 KT.
WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
.TUESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO
4 FT.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KT INCREASING TO 15 TO
25 KT. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO
7 FT.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT DIMINISHING TO
10 TO 20 KT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO
2 TO 4 FT.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.THURSDAY NIGHT...NORTHEAST WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT. WAVES 1 TO 3 FT.
.FRIDAY...NORTHEAST WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

$$

LMZ669-671-673-675-777-779-260330-
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-
250 PM CDT MON APR 25 2016

SHEBOYGAN WI TO PENTWATER MI SOUTH

...SEVERE THUNDERSTORM WATCH 103 IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

.TONIGHT...SOUTH WINDS 15 TO 25 KT VEERING TO NORTHWEST. CHANCE
OF SHOWERS AND THUNDERSTORMS THIS EVENING. DAMAGING WINDS AND
LARGE HAIL THIS EVENING. WAVES 2 TO 4 FT BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.TUESDAY...NORTH WINDS 15 TO 25 KT. WAVES 4 TO 7 FT OCCASIONALLY
TO 9 FT.
.TUESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT BECOMING EAST. WAVES
4 TO 7 FT OCCASIONALLY TO 9 FT.
.WEDNESDAY...EAST WINDS 15 TO 25 KT BECOMING NORTHEAST. CHANCE OF
SHOWERS IN THE AFTERNOON. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT BECOMING EAST.
SHOWERS LIKELY. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.THURSDAY...NORTHEAST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. CHANCE OF SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT
SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.THURSDAY NIGHT...NORTHEAST WINDS 10 TO 20 KT DIMINISHING TO
10 TO 15 KT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.FRIDAY...NORTHEAST WINDS 10 TO 15 KT BECOMING NORTH. WAVES 2 TO
4 FT.
.SATURDAY...EAST WINDS 10 TO 20 KT BECOMING NORTHEAST. CHANCE OF
SHOWERS. WAVES 2 TO 4 FT.

$$

LMZ080-567-868-870-872-874-876-878-260330-
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 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-
250 PM CDT MON APR 25 2016

TWO RIVERS WI TO MANISTEE MI SOUTH TO SHEBOYGAN WI TO PENTWATER
MI

.TONIGHT...SOUTH WINDS 15 TO 25 KT VEERING TO NORTHWEST TO 30 KT.
THUNDERSTORMS LIKELY WITH A CHANCE OF SHOWERS THIS EVENING...THEN
SLIGHT CHANCE OF SHOWERS OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY
TO 7 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
.TUESDAY...NORTH WINDS 15 TO 25 KT BECOMING NORTHEAST. WAVES 4 TO
7 FT OCCASIONALLY TO 9 FT.
.TUESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT BECOMING EAST. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.WEDNESDAY...EAST WINDS 15 TO 25 KT BECOMING NORTHEAST. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT BECOMING EAST.
SHOWERS LIKELY. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.THURSDAY...EAST WINDS 15 TO 25 KT BECOMING NORTHEAST 10 TO
20 KT. CHANCE OF SHOWERS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT
SUBSIDING TO 2 TO 4 FT.
.THURSDAY NIGHT...NORTHEAST WINDS 10 TO 20 KT DIMINISHING TO
10 TO 15 KT. WAVES 2 TO 4 FT.
.FRIDAY...NORTHEAST WINDS 10 TO 15 KT BECOMING NORTH. WAVES 1 TO
3 FT.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

$$

LMZ761-260330-
MAFOR 2521/
MICHIGAN NORTH...GALE WARNING IN EFFECT...
13256 13150 12140. CHANCE OF RAIN SHOWERS LATE THIS EVENING.
WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT TONIGHT. WAVES 6 TO 9 FT
OCCASIONALLY TO 11 FT SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT
TUESDAY.

MICHIGAN SOUTH...SEVERE THUNDERSTORM WATCH IN EFFECT...
11430 11439 11520 11630 11730 13830. CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY THIS EVENING. WAVES 2 TO 4 FT BUILDING TO 4 TO
6 FT OCCASIONALLY TO 8 FT TONIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO
9 FT TUESDAY.

$$

BEACHLER



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