National Weather Service United States Department of Commerce

KLOT 212105
GLFLMT

EXPERIMENTAL TABULAR OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO IL
405 PM CDT SAT OCT 21 2017

WAVES ARE THE SIGNIFICANT WAVE HEIGHT - THE AVERAGE OF THE HIGHEST
1/3 OF THE WAVE SPECTRUM.   OCCASIONAL WAVE HEIGHT IS THE AVERAGE OF
THE HIGHEST 1/10 OF THE WAVE SPECTRUM.

.SYNOPSIS...HIGH PRESSURE OF 30.4 INCHES ALONG THE MID ATLANTIC
COAST WILL SHIFT SLOWLY EAST INTO SUNDAY. LOW PRESSURE OF 29.2
INCHES OVER MANITOBA WILL LIFT TO HUDSON BAY SUNDAY AS A TRAILING
COLD FRONT MOVES ACROSS LAKE MICHIGAN DURING THE AFTERNOON.
ANOTHER LOW OF 29.4 INCHES WILL MOVE ACROSS ALBERTA SUNDAY TO
JAMES BAY LATE MONDAY. AN ASSOCIATED COLD FRONT WILL MOVE ACROSS
LAKE MICHIGAN MONDAY NIGHT. LOW PRESSURE OF 29.6 INCHES WILL FORM
OVER THE UPPER OHIO VALLEY MONDAY NIGHT AND LIFT INTO EASTERN
ONTARIO TUESDAY, DEEPENING TO 29.0 INCHES AS IT DOES SO.

LMZ261-362-364-366-563-565-567-868-220900-
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 HOLLAND TO WHITEHALL MI 5 NM OFF SHORE TO MID-
LINE OF LAKE-
405 PM CDT SAT OCT 21 2017

.TONIGHT...
WEATHER.............PARTLY CLOUDY, THEN MOSTLY CLOUDY WITH A SLIGHT
                              CHANCE OF SHOWERS AFTER MIDNIGHT.
SFC WINDS...........SOUTH TO 30 KNOTS.
100-FT WINDS........SOUTH GALES TO 35 KNOTS.
SIG WAVES...........6 TO 9 FEET / 2-3 METERS /.
OCNL WAVES..........AROUND 10 FEET / 3 METERS /.

.SUNDAY...
WEATHER.............MOSTLY CLOUDY WITH CHANCE OF SHOWERS, THEN
                              SHOWERS IN THE LATE MORNING AND AFTERNOON.
SFC WINDS...........SOUTH TO 30 KNOTS...BECOMING WEST 15 TO 20
                              KNOTS EARLY IN THE AFTERNOON.
100-FT WINDS........SOUTH GALES TO 35 KNOTS...BECOMING WEST 20 TO
                              25 KNOTS EARLY IN THE AFTERNOON.
SIG WAVES...........8 TO 12 FEET / AROUND 3 METERS /.
OCNL WAVES..........AROUND 14 FEET / 4 METERS /.

.SUNDAY NIGHT...
WEATHER.............SHOWERS, THEN SHOWERS LIKELY IN THE LATE
                              EVENING AND EARLY MORNING. MOSTLY CLOUDY WITH
                              CHANCE OF SHOWERS.
SFC WINDS...........NORTHWEST 10 TO 15 KNOTS.
100-FT WINDS........NORTHWEST 15 TO 20 KNOTS.
SIG WAVES...........5 TO 7 FEET / AROUND 2 METERS /...SUBSIDING TO
                              2 TO 4 FEET / AROUND 1 METER /.
OCNL WAVES..........AROUND 9 FEET / 3 METERS /.

.MONDAY...
WEATHER.............MOSTLY SUNNY WITH CHANCE OF SHOWERS, THEN
                              PARTLY SUNNY IN THE LATE MORNING AND AFTERNOON.
SFC WINDS...........SOUTHWEST 10 TO 15 KNOTS.
100-FT WINDS........SOUTHWEST 15 TO 20 KNOTS.
SIG WAVES...........2 TO 4 FEET / AROUND 1 METER /.
OCNL WAVES..........AROUND 5 FEET / 2 METERS /.

.MONDAY NIGHT...
WEATHER.............MOSTLY CLOUDY WITH CHANCE OF SHOWERS, THEN
                              SHOWERS LIKELY AFTER MIDNIGHT.
SFC WINDS...........WEST 10 TO 15 KNOTS...INCREASING TO NORTHWEST
                              20 TO 25 KNOTS IN THE LATE EVENING AND
                              OVERNIGHT.
100-FT WINDS........WEST 15 TO 20 KNOTS...INCREASING TO NORTHWEST
                              TO 30 KNOTS IN THE LATE EVENING AND OVERNIGHT.
SIG WAVES...........2 TO 4 FEET / AROUND 1 METER /...BUILDING TO 4
                              TO 6 FEET / 1-2 METERS / IN THE LATE EVENING
                              AND OVERNIGHT.
OCNL WAVES..........AROUND 8 FEET / 2 METERS /...BUILDING TO AROUND
                              6 FEET / 2 METERS / IN THE LATE EVENING AND
                              OVERNIGHT.


.FORECAST DAYS 3 THROUGH 5...

.TUESDAY...WINDY. SHOWERS, THEN SHOWERS LIKELY IN THE EVENING.
CHANCE OF SHOWERS AFTER MIDNIGHT. NORTHWEST WINDS TO 30 KNOTS.
WAVES 8 TO 12 FEET / AROUND 3 METERS /.
.WEDNESDAY...NORTHWEST WINDS 10 TO 15 KNOTS. WAVES 5 TO 7 FEET /
AROUND 2 METERS /.
.THURSDAY...CHANCE OF SHOWERS. SOUTH WINDS 15 TO 20 KNOTS. WAVES
5 TO 7 FEET / AROUND 2 METERS /.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-220900-
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-
405 PM CDT SAT OCT 21 2017

.TONIGHT...
WEATHER.............PARTLY CLOUDY, THEN MOSTLY CLOUDY WITH A SLIGHT
                              CHANCE OF SHOWERS AFTER MIDNIGHT.
SFC WINDS...........SOUTH 20 TO 25 KNOTS.
100-FT WINDS........SOUTH TO 30 KNOTS.
SIG WAVES...........6 TO 9 FEET / 2-3 METERS /.
OCNL WAVES..........AROUND 11 FEET / 3 METERS /.

.SUNDAY...
WEATHER.............MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
                              CHANCE OF THUNDERSTORMS. SHOWERS.
SFC WINDS...........SOUTH TO 30 KNOTS...BECOMING SOUTHWEST 15 TO 20
                              KNOTS EARLY IN THE AFTERNOON.
100-FT WINDS........SOUTH GALES TO 35 KNOTS...BECOMING SOUTHWEST 20
                              TO 25 KNOTS EARLY IN THE AFTERNOON.
SIG WAVES...........8 TO 12 FEET / AROUND 3 METERS /.
OCNL WAVES..........AROUND 14 FEET / 4 METERS /.

.SUNDAY NIGHT...
WEATHER.............SHOWERS LIKELY, THEN MOSTLY CLOUDY WITH CHANCE
                              OF SHOWERS AFTER MIDNIGHT.
SFC WINDS...........NORTHWEST 10 TO 15 KNOTS.
100-FT WINDS........NORTHWEST 15 TO 20 KNOTS.
SIG WAVES...........5 TO 7 FEET / AROUND 2 METERS /...SUBSIDING TO
                              3 TO 5 FEET / 1-2 METERS / IN THE LATE EVENING
                              AND OVERNIGHT.
OCNL WAVES..........AROUND 9 FEET / 3 METERS / EARLY IN THE
                              EVENING.

.MONDAY...
WEATHER.............MOSTLY SUNNY WITH CHANCE OF SHOWERS, THEN
                              PARTLY SUNNY EARLY IN THE AFTERNOON.
SFC WINDS...........NORTHWEST 10 TO 15 KNOTS.
100-FT WINDS........NORTHWEST 15 TO 20 KNOTS.
SIG WAVES...........2 TO 4 FEET / AROUND 1 METER /.
OCNL WAVES..........AROUND 5 FEET / 2 METERS /.

.MONDAY NIGHT...
WEATHER.............MOSTLY CLOUDY WITH CHANCE OF SHOWERS.
SFC WINDS...........NORTHWEST 20 TO 25 KNOTS.
100-FT WINDS........NORTHWEST TO 30 KNOTS.
SIG WAVES...........2 TO 4 FEET / AROUND 1 METER /...BUILDING TO 5
                              TO 7 FEET / AROUND 2 METERS / IN THE LATE
                              EVENING AND OVERNIGHT.
OCNL WAVES..........AROUND 9 FEET / 3 METERS /...BUILDING TO AROUND
                              7 FEET / 2 METERS / IN THE LATE EVENING AND
                              OVERNIGHT.


.FORECAST DAYS 3 THROUGH 5...

.TUESDAY...WINDY. SHOWERS, THEN SHOWERS LIKELY IN THE EVENING.
CHANCE OF SHOWERS AFTER MIDNIGHT. NORTHWEST WINDS TO 30 KNOTS.
WAVES 8 TO 12 FEET / AROUND 3 METERS /.
.WEDNESDAY...NORTHWEST WINDS 10 TO 15 KNOTS. WAVES 5 TO 7 FEET /
AROUND 2 METERS /.
.THURSDAY...CHANCE OF SHOWERS. SOUTH WINDS 15 TO 20 KNOTS. WAVES
5 TO 7 FEET / AROUND 2 METERS /.

$$

 

Occasional waves will only be displayed when values meet or exceed 5 feet/2 meters.

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