National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FZUS63 KLOT 120140
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
840 PM CDT SAT MAY 11 2013

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN

.SYNOPSIS...LOW PRESSURE OF 29.6 INCHES NORTH OF LAKE HURON
DEEPENS TO 29.4 INCHES OVERNIGHT AS IT MOVES NORTHEAST TO THE
CENTRAL QUEBEC ONTARIO BORDER. THE LOW CONTINUES NORTHEASTWARD
SUNDAY...MERGING WITH ANOTHER LOW OVER EASTERN QUEBEC SUNDAY
NIGHT. HIGH PRESSURE OF 30.4 INCHES OVER MANITOBA AND THE
NORTHERN PLAINS WILL MOVE SOUTHEAST INTO THE MISSISSIPPI VALLEY
SUNDAY...WEAKENING TO 30.1 INCHES. THE NORTHERN EXTENT OF THIS
RIDGE WILL MOVE EAST ACROSS THE WESTERN LAKES EARLY NEXT WEEK AS
LOW PRESSURE OF 29.5 INCHES DEVELOPS OVER THE NORTHERN PLAINS
TUESDAY.

//

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.


LMZ261-362-364-563-120945-
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 ROCK ISLAND PASSAGE TO STURGEON BAY WI-
840 PM CDT SAT MAY 11 2013

STURGEON BAY WI TO POINT BETSIE MI NORTH

...GALE WARNING IN EFFECT FROM MIDNIGHT CDT TONIGHT THROUGH
SUNDAY AFTERNOON...

.REST OF TONIGHT...NORTHWEST 20 TO 25 KT INCREASING TO 35 KT
GALES BY OVERNIGHT. CHANCE OF RAIN AND SNOW SHOWERS. WAVES 2 TO
4 FT OCCASIONALLY TO 6 FT BUILDING TO 7 TO 10 FT OCCASIONALLY TO
14 FT.
.SUNDAY...NORTHWEST GALES TO 35 KT DIMINISHING TO 30 KT LATE.
RAIN AND SNOW SHOWERS LIKELY THROUGH MID MORNING...CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. 7 TO 10 FT OCCASIONALLY TO 14 FT.
.SUNDAY NIGHT...NORTHWEST WINDS TO 30 KT DIMINISHING TO 10 TO
20 KT OVERNIGHT. WAVES 7 TO 10 FT OCCASIONALLY TO 14 FT SUBSIDING
TO 3 TO 6 FT OCCASIONALLY TO 9 FT.
.MONDAY...WEST WINDS 10 TO 20 KT BECOMING SOUTH. WAVES 2 TO 4 FT
OCCASIONALLY TO 6 FT.
.MONDAY NIGHT...SOUTH WINDS 15 TO 20 KT. CHANCE OF SHOWERS. WAVES
3 TO 5 FT OCCASIONALLY TO 8 FT.
.TUESDAY...SOUTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 3 TO 5 FT
OCCASIONALLY TO 8 FT.
.TUESDAY NIGHT...SOUTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 2 TO 4 FT OCCASIONALLY TO 6 FT.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST AROUND
10 KT. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FT.
.THURSDAY...SOUTHWEST WINDS AROUND 10 KT. WAVES 1 TO 2 FT.

$$

LMZ366-565-567-669-671-673-868-870-872-874-120945-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
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 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 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-
840 PM CDT SAT MAY 11 2013

STURGEON BAY WI TO POINT BETSIE MI SOUTH TO WIND POINT WI TO
HOLLAND MI

...GALE WARNING IN EFFECT FROM MIDNIGHT CDT TONIGHT THROUGH
SUNDAY MORNING...

.REST OF TONIGHT...NORTHWEST WINDS 20 TO 25 KT INCREASING TO
35 KT GALES OVERNIGHT. WAVES 2 TO 4 FT OCCASIONALLY TO 6 FT
BUILDING TO 7 TO 9 FT OCCASIONALLY TO 13 FT.
.SUNDAY...NORTHWEST WINDS GALES TO 35 KT GRADUALLY DIMINISHING TO
10 TO 20 KT WINDS. WAVES 7 TO 10 FT OCCASIONALLY TO 14 FT...
SUBSIDING TO 5 TO 7 FT OCCASIONALLY TO 10 FT LATE.
.SUNDAY NIGHT...NORTH WINDS 10 TO 15 KT BACKING WEST. WAVES
SUBSIDING TO 1 TO 3 FT.
.MONDAY...SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH 10 TO 20 KT.
WAVES 2 TO 4 FT OCCASIONALLY TO 6 FT.
.MONDAY NIGHT...SOUTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS. WAVES
3 TO 5 FT OCCASIONALLY TO 8 FT.
.TUESDAY AND TUESDAY NIGHT...SOUTH WINDS 15 TO 25 KT. SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 3 TO 5 FT OCCASIONALLY
TO 8 FT.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST. WAVES 1
TO 3 FT.
.THURSDAY...WEST WINDS AROUND 10 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 2 FT.

$$

LMZ080-675-777-779-876-878-120945-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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-
840 PM CDT SAT MAY 11 2013

WIND POINT WI TO HOLLAND MI SOUTH

.REST OF TONIGHT...NORTHWEST WINDS 15 TO 20 KT GRADUALLY
INCREASING TO 30 KT. WAVES 2 TO 4 FT OCCASIONALLY TO 6 FT
BUILDING TO 5 TO 7 FT OCCASIONALLY TO 11 FT.
.SUNDAY...NORTH WINDS TO 30 KT GRADUALLY DIMINISHING TO 15 TO
20 KT. WAVES 7 TO 10 FT OCCASIONALLY TO 14 FT...SUBSIDING TO 4 TO
6 FT OCCASIONALLY TO 9 FT LATE.
.SUNDAY NIGHT...NORTH WINDS 10 TO 15 KT BECOMING SOUTHWEST 5 TO
10 KT. WAVES SUBSIDING TO 1 TO 3 FT.
.MONDAY...SOUTHWEST WINDS 5 TO 10 KT BECOMING SOUTHEAST 10 TO 20
KT. WAVES 1 TO 3 FT.
.MONDAY NIGHT...SOUTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS. WAVES
2 TO 4 FT OCCASIONALLY TO 6 FT.
.TUESDAY AND TUESDAY NIGHT...SOUTH WINDS 15 TO 25 KT. WAVES 2 TO
4 FT OCCASIONALLY TO 6 FT.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 25 KT. WAVES 2 TO 4 FT
OCCASIONALLY TO 6 FT.
.THURSDAY...SOUTHWEST WINDS AROUND 10 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 2 FT.

$$
LMZ761-120945-
MAFOR 1203/
MICHIGAN NORTH...GALE WARNING IN EFFECT...10736 11746 14756 11756
11740 11730. WAVES 2 TO 4 FT OCCASIONALLY TO 6 FT BUILDING TO 7
TO 10 FT OCCASIONALLY TO 14 FT TONIGHT.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...11730 11740 12750 11740
11730 11720 11710. WAVES 2 TO 4 FT OCCASIONALLY TO 6 FT BUILDING
TO 7 TO 10 FT OCCASIONALLY TO 14 FT OVERNIGHT...SUBSIDING TO 5 TO
7 FT OCCASIONALLY TO 10 FT LATE.

$$