Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 220753
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
253 AM 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...LOW PRESSURE OF 29.6 INCHES OVER THE EASTERN GREAT
LAKES WILL CONTINUE EAST TO SOUTHERN QUEBEC TODAY...AS HIGH
PRESSURE OF 30.2 INCHES OVER THE CENTRAL AND NORTHERN PLAINS
SHIFTS EAST TO THE WESTERN GREAT AND THEN CONTINUES EAST ACROSS
THE CENTRAL GREAT LAKES TONIGHT INTO WEDNESDAY. AS THIS HIGH
SHIFTS TO THE EAST WEDNESDAY NIGHT INTO THURSDAY...A TROUGH OF LOW
PRESSURE AVERAGING 29.6 INCHES OVER THE CENTRAL AND NORTHERN
PLAINS WILL MOVE EAST TOWARDS THE WESTERN GREAT LAKES AND THEN
MOVE EAST ACROSS THE CENTRAL GREAT LAKES THURSDAY NIGHT INTO
FRIDAY. THIS LOW WILL THEN CONTINUE TO THE EASTERN GREAT LAKES
FRIDAY NIGHT...AS A RIDGE OF HIGH PRESSURE AVERAGING 30.2 INCHES
BUILDS EAST OVER THE UPPER MIDWEST AND WESTERN GREAT LAKES
SATURDAY.

LMZ261-362-364-366-563-565-567-868-221530-
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-
253 AM CDT TUE APR 22 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

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

WAVE FORECAST IS FOR ICE FREE AREAS

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-221530-
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-
253 AM CDT TUE APR 22 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...NORTH WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT THIS
MORNING...THEN DIMINISHING TO 10 TO 20 KT THIS AFTERNOON. WAVES 4
TO 7 FT OCCASIONALLY TO 9 FT.
.TONIGHT...NORTH WINDS 10 TO 20 KT. WAVES SUBSIDING TO 2 TO 4 FT.
.WEDNESDAY...NORTH WINDS 10 TO 15 KT DIMINISHING TO 5 TO 10 KT.
WAVES 1 TO 3 FT.
.WEDNESDAY NIGHT...EAST WINDS LESS THAN 10 KT BECOMING SOUTHEAST
10 TO 20 KT OVERNIGHT. 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 5 TO 8 FT OCCASIONALLY TO 10 FT.
.THURSDAY NIGHT...SOUTH WINDS TO 30 KT BECOMING SOUTHWEST 15 TO
25 KT. SHOWERS LIKELY. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST. SLIGHT
CHANCE OF SHOWERS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY...NORTH WINDS 15 TO 25 KT. WAVES 4 TO 6 FT OCCASIONALLY
TO 8 FT.

WAVE FORECAST IS FOR ICE FREE AREAS

$$

LMZ761-221530-
MAFOR 2209/
MICHIGAN NORTH 11740 12730 12830 12820 11810. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT TODAY. WAVES SUBSIDING TO 2 TO 4 FT TONIGHT.

MICHIGAN SOUTH 11840 13830 14820. WAVES 4 TO 7 FT OCCASIONALLY TO
9 FT TODAY. WAVES SUBSIDING TO 2 TO 4 FT TONIGHT.

$$

RODRIGUEZ





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