Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
205
FZUS63 KLOT 251439
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
839 AM CST SAT FEB 25 2017

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 OF THE HIGHEST 1/3 OF THE WAVE, ALONG WITH THE
AVERAGE HEIGHT OF THE HIGHEST 10% OF THE WAVES WHICH WILL
OCCASIONALLY BE ENCOUNTERED.

.SYNOPSIS...LOW PRESSURE OF 29.3 INCHES NORTH OF LAKE HURON WILL
MOVE TO WESTERN QUEBEC BY LATE THIS AFTERNOON AND DEEPEN TO 29.1
INCHES. HIGH PRESSURE WILL MOVE ACROSS THE LOWER MISSISSIPPI
VALLEY THIS EVENING WITH A RIDGE AVERAGING 30.0 INCHES EXTENDING
NORTHWARD ACROSS THE LAKE. THIS RIDGE WILL MOVE QUICKLY EAST EARLY
SUNDAY MORNING WITH LOW PRESSURE OF 29.7 INCHES DEVELOPING ACROSS
LAKE SUPERIOR. THIS LOW WILL MOVE TO SOUTHERN QUEBEC SUNDAY
NIGHT. THE NEXT LOW PRESSURE OF AROUND 29.7 INCHES WILL MOVE FROM
THE CENTRAL PLAINS EARLY TUESDAY TO THE SOUTHERN PART OF LAKE
MICHIGAN TUESDAY NIGHT.

LMZ261-362-364-366-563-565-252100-
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-
839 AM CST SAT FEB 25 2017

TWO RIVERS WI TO MANISTEE MI NORTH...

...GALE WARNING IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

.REST OF TODAY...NORTHWEST GALES TO 35 KT DIMINISHING TO 30 KT
LATE. SNOW SHOWERS LIKELY. WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT.
.TONIGHT...WEST WINDS TO 30 KT BECOMING SOUTHWEST LATE. SLIGHT
CHANCE OF SNOW SHOWERS IN THE EVENING. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SUNDAY...SOUTHWEST WINDS TO 30 KT INCREASING TO GALES TO 35 KT BY
LATE MORNING. CHANCE OF SNOW IN THE MORNING...THEN CHANCE OF SNOW
AND RAIN IN THE AFTERNOON. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
BUILDING TO 7 TO 10 FT OCCASIONALLY TO 13 FT.
.SUNDAY NIGHT...WEST WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT
BY EARLY OVERNIGHT. CHANCE OF RAIN AND SNOW IN THE EVENING. WAVES
5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.MONDAY...SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH 10 TO 20 KT.
WAVES 2 TO 4 FT.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.TUESDAY...SOUTH WINDS 10 TO 20 KT BECOMING NORTHEAST 15 TO 25 KT
TUESDAY NIGHT. RAIN WITH A CHANCE OF SNOW. WAVES 1 TO 3 FT
BUILDING TO 3 TO 6 FT OCCASIONALLY TO 8 FT TUESDAY NIGHT.
.WEDNESDAY...NORTH WINDS TO 30 KT. WAVES BUILDING TO 5 TO 8 FT
OCCASIONALLY TO 10 FT.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-252100-
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-
839 AM CST SAT FEB 25 2017

TWO RIVERS WI TO MANISTEE MI SOUTH...

...GALE WARNING IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

.REST OF TODAY...NORTHWEST GALES TO 35 KT BECOMING WEST TO 30 KT.
CHANCE OF SNOW SHOWERS. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.
.TONIGHT...NORTHWEST WINDS TO 30 KT BECOMING WEST 15 TO 25 KT
AFTER MIDNIGHT AND THEN SOUTHWEST LATE. SLIGHT CHANCE OF SNOW
SHOWERS IN THE EVENING. WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT
SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SUNDAY...SOUTHWEST WINDS TO 30 KT INCREASING TO GALES TO 35 KT
BY LATE MORNING. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT BUILDING TO
7 TO 10 FT OCCASIONALLY TO 13 FT.
.SUNDAY NIGHT...SOUTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO 25
KT OVERNIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 3
TO 5 FT OCCASIONALLY TO 7 FT.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH. WAVES 2 TO
4 FT.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH...AND THEN
VEERING TO THE NORTHWEST TUESDAY NIGHT. CHANCE OF RAIN. WAVES 2
TO 4 FT BUILDING TO 3 TO 6 FT OCCASIONALLY TO 8 FT TUESDAY NIGHT.
.WEDNESDAY...NORTH WINDS TO 30 KT. CHANCE OF RAIN AND SNOW. WAVES
BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.

$$
LMZ761-252100-
MAFOR 2516/
MICHIGAN NORTH...GALE WARNING IN EFFECT...12757 11747 13640
11540 11550. CHANCE OF SNOW SUNDAY MORNING. WAVES 6 TO 9 FT
OCCASIONALLY TO 11 FT TODAY...SUBSIDING TO 4 TO 6 FT OCCASIONALLY
TO 8 FT TONIGHT.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...12750 11640 11740 12630
11530 11550. CHANCE OF SNOW SHOWERS TODAY. WAVES 7 TO 10 FT
OCCASIONALLY TO 13 FT TODAY...SUBSIDING TO 3 TO 5 FT OCCASIONALLY
TO 7 FT TONIGHT.

$$

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/LOT/GLFTABLE

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.