Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 232009
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
209 PM CST FRI JAN 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...LOW PRESSURE OF 29.4 INCHES IS IN PLACE NEAR JAMES BAY
THIS AFTERNOON...WHILE WEAK HIGH PRESSURE RIDGING OF 30.4 INCHES
CONTINUES TO DOMINATE SOUTH OF THE LAKES FROM MISSOURI TO THE
UPPER OHIO VALLEY. THE LOW WILL MOVE SLOWLY EAST INTO NORTHERN
QUEBEC BY SATURDAY MORNING...WHILE THE RIDGE TO THE SOUTH WEAKENS.
A COLD FRONT TRAILING FROM THE QUEBEC LOW WILL MOVE SOUTH DOWN
LAKE MICHIGAN SATURDAY. THEN ANOTHER FAST MOVING LOW OF 29.7
INCHES WILL MOVE ACROSS NORTHWEST ILLINOIS BY SUNDAY
MORNING...BEFORE QUICKLY SHIFTING TO THE MID ATLANTIC REGION
SUNDAY NIGHT...WHILE WEAK HIGH PRESSURE OF 30.2 INCHES SPREADS
ACROSS ONTARIO.

LMZ261-362-364-366-563-565-240500-
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-
209 PM CST FRI JAN 23 2015

TWO RIVERS WI TO MANISTEE MI NORTH

.TONIGHT...SOUTHWEST WINDS TO 30 KT BECOMING WEST 15 TO 25 KT
LATE THIS EVENING...THEN DIMINISHING TO 10 TO 20 KT OVERNIGHT.
CHANCE OF SNOW. WAVES 8 TO 12 FT OCCASIONALLY TO 15 FT SUBSIDING
TO 4 TO 7 FT OCCASIONALLY TO 9 FT OVERNIGHT.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KT. CHANCE OF SNOW SHOWERS.
WAVES 2 TO 4 FT.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST IN
THE EVENING...THEN INCREASING TO 15 TO 25 KT LATE. SLIGHT CHANCE
OF SNOW OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KT. CHANCE OF SNOW IN THE
MORNING...THEN SLIGHT CHANCE OF SNOW IN THE AFTERNOON. WAVES 4 TO
6 FT OCCASIONALLY TO 8 FT.
.SUNDAY NIGHT...NORTHEAST WINDS 10 TO 20 KT BECOMING EAST 10 TO
15 KT OVERNIGHT. WAVES SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7
FT OVERNIGHT.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KT. SLIGHT CHANCE OF SNOW IN
THE AFTERNOON. WAVES 2 TO 4 FT.
.MONDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KT. CHANCE OF SNOW.
WAVES 2 TO 4 FT.
.TUESDAY...SOUTHEAST WINDS 10 TO 15 KT BECOMING SOUTH IN THE
AFTERNOON. SLIGHT CHANCE OF SNOW SHOWERS. WAVES 2 TO 4 FT.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 30 KT IN
THE AFTERNOON. WAVES BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT
IN THE AFTERNOON.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-240500-
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 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 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-
209 PM CST FRI JAN 23 2015

TWO RIVERS WI TO MANISTEE MI SOUTH

.TONIGHT...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST 10 TO 20 KT
AFTER MIDNIGHT...THEN NORTHWEST LATE. CHANCE OF RAIN AND SNOW.
WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT OVERNIGHT.
.SATURDAY...NORTHWEST WINDS 15 TO 20 KT. CHANCE OF SNOW SHOWERS.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY NIGHT...NORTHWEST WINDS 10 TO 20 KT BECOMING NORTHEAST
AFTER MIDNIGHT. CHANCE OF SNOW. WAVES 2 TO 4 FT.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KT INCREASING TO 30 KT IN THE
AFTERNOON. SNOW LIKELY IN THE MORNING...THEN CHANCE OF SNOW IN
THE AFTERNOON. WAVES BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT
IN THE AFTERNOON.
.SUNDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT OVERNIGHT. CHANCE OF SNOW SHOWERS. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT.
.MONDAY...EAST WINDS 10 TO 20 KT BECOMING SOUTHEAST. SLIGHT
CHANCE OF SNOW IN THE AFTERNOON. WAVES 2 TO 4 FT.
.MONDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KT. CHANCE OF SNOW.
WAVES 2 TO 4 FT.
.TUESDAY...SOUTHEAST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SNOW
SHOWERS. WAVES 2 TO 4 FT.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH TO 30 KT
IN THE AFTERNOON. WAVES BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9
FT IN THE AFTERNOON.

$$

LMZ761-240500-
MAFOR 2322/
MICHIGAN NORTH 12547 11630 12620 13720. CHANCE OF SNOW. WAVES 8
TO 12 FT OCCASIONALLY TO 15 FT SUBSIDING TO 4 TO 7 FT OCCASIONALLY
TO 9 FT TONIGHT...AND TO 2 TO 4 FT SATURDAY.

MICHIGAN SOUTH 13530 11630 11620 19720 13720. CHANCE OF RAIN AND
SNOW TONIGHT. CHANCE OF SNOW SHOWERS SATURDAY. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT
TONIGHT...AND TO 3 TO 5 FT OCCASIONALLY TO 7 FT SATURDAY.

$$

KJB







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