Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 281927
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
227 PM CDT SUN SEP 28 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 SPANS FROM THE GREAT
LAKES TO THE EASTERN SEABOARD THIS AFTERNOON WHILE A WEAK
FRONTAL TROUGH OF 30.0 INCHES LIES OVER LAKE SUPERIOR. THE FRONT
WILL SLOWLY MOVE SOUTH ACROSS LAKE MICHIGAN MONDAY AND MONDAY
NIGHT WHILE HIGH PRESSURE OF 30.5 INCHES BUILDS SOUTHEAST ACROSS
ONTARIO. THIS HIGH WILL MOVE ACROSS QUEBEC TUESDAY WHILE LOW
PRESSURE DEEPENS TO 29.4 INCHES OVER THE NORTHERN PLAINS. THE LOW
WILL MOVE OVER HUDSON BAY THURSDAY NIGHT. A SECONDARY LOW IS
PROGGED TO DEEPEN NEAR NORTHERN LAKE MICHIGAN LATE THURSDAY NIGHT
INTO FRIDAY DRAGGING A COLD FRONT ACROSS LAKE MICHIGAN.

LMZ261-362-364-366-563-565-567-868-290430-
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-
227 PM CDT SUN SEP 28 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.TONIGHT...SOUTHWEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS
OVERNIGHT. WAVES 1 TO 3 FT.
.MONDAY...SOUTHWEST WINDS 10 TO 15 KT VEERING TO NORTH 20 TO 25
KT. CHANCE OF SHOWERS. WAVES BUILDING TO 4 TO 7 FT OCCASIONALLY TO
9 FT.
.MONDAY NIGHT...NORTH WINDS TO 30 KT EASING TO 15 TO 20 KT LATE.
CHANCE OF SHOWERS IN THE EVENING...THEN SLIGHT CHANCE OF SHOWERS
OVERNIGHT. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KT. WAVES SUBSIDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.TUESDAY NIGHT...EAST WINDS AROUND 10 KT BECOMING SOUTHEAST 10 TO
15 KT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 1 TO
2 FT OVERNIGHT.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KT. CHANCE OF SHOWERS.
WAVES 2 TO 4 FT.
.THURSDAY...SOUTH WINDS 10 TO 20 KT. SHOWERS LIKELY WITH A CHANCE
OF THUNDERSTORMS. WAVES 2 TO 4 FT.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST GALES TO
35 KT IN THE AFTERNOON. CHANCE OF SHOWERS. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT
IN THE AFTERNOON.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-290430-
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-
227 PM CDT SUN SEP 28 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TONIGHT...VARIABLE WINDS 5 TO 10 KT BECOMING SOUTHWEST. PATCHY
FOG OVERNIGHT. WAVES 1 FT OR LESS.
.MONDAY...SOUTHWEST WINDS AROUND 10 KT VEERING TO NORTH 15 TO 20
KT LATE IN THE AFTERNOON. PATCHY FOG THROUGH MID MORNING. CHANCE
OF SHOWERS IN THE AFTERNOON. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT LATE.
.MONDAY NIGHT...NORTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS IN THE
EVENING...THEN SLIGHT CHANCE OF SHOWERS OVERNIGHT. WAVES BUILDING
TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
.TUESDAY...NORTH WINDS 10 TO 20 KT. WAVES SUBSIDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.TUESDAY NIGHT...NORTHEAST WINDS AROUND 10 KT BECOMING SOUTHEAST.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 1 TO 3 FT
OVERNIGHT.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.WEDNESDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KT. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 2 TO 4 FT.
.THURSDAY...SOUTH WINDS 10 TO 20 KT. SHOWERS AND THUNDERSTORMS
LIKELY. WAVES 2 TO 4 FT.
.FRIDAY...WEST WINDS TO 30 KT INCREASING TO GALES TO 35 KT IN THE
AFTERNOON. CHANCE OF SHOWERS. WAVES 3 TO 5 FT OCCASIONALLY TO
7 FT BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT IN THE
AFTERNOON.

$$

LMZ761-290430-
MAFOR 2821/
MICHIGAN NORTH 15510 12730. CHANCE OF SHOWERS MONDAY. WAVES 1 TO
3 FT TONIGHT. WAVES 1 TO 3 FT BUILDING TO 4 TO 7 FT OCCASIONALLY
TO 9 FT MONDAY.

MICHIGAN SOUTH 12900 14500 12510. PATCHY FOG TONIGHT THROUGH
MONDAY MORNING. WAVES 1 FOOT OR LESS TONIGHT BUILDING TO 3 TO 5
FT OCCASIONALLY TO 7 FT LATE MONDAY AFTERNOON.

$$

BMD





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