Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 210146
NSHDTX

NEARSHORE MARINE FORECAST FOR MICHIGAN
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
946 PM EDT THU APR 20 2017

FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE

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.

LHZ422-210930-
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
946 PM EDT THU APR 20 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...

.REST OF TONIGHT...WEST WINDS 15 TO 20 KNOTS. GUSTS TO 25 KNOTS.
MOSTLY CLOUDY IN THE LATE EVENING AND EARLY MORNING BECOMING
PARTLY CLOUDY. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET EARLY IN
THE MORNING.
.FRIDAY...NORTHWEST WINDS 15 TO 20 KNOTS. GUSTS TO 25 KNOTS.
MOSTLY CLOUDY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET IN THE
AFTERNOON.
.FRIDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS BECOMING NORTH
5 TO 10 KNOTS. MOSTLY CLOUDY EARLY IN THE EVENING BECOMING PARTLY
CLOUDY. WAVES AROUND 2 FEET OR LESS.
.SATURDAY...NORTHEAST WINDS 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
AROUND 2 FEET OR LESS.

SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.

$$

LHZ421-210930-
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-
946 PM EDT THU APR 20 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...

.REST OF TONIGHT...WEST WINDS 15 TO 20 KNOTS. GUSTS TO 25 KNOTS.
MOSTLY CLOUDY IN THE LATE EVENING AND EARLY MORNING BECOMING
PARTLY CLOUDY. WAVES 2 TO 4 FEET.
.FRIDAY...WEST WINDS 20 TO 25 KNOTS BECOMING NORTHWEST 15 TO
20 KNOTS IN THE AFTERNOON. MOSTLY CLOUDY. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET LATE IN THE AFTERNOON.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY
EARLY IN THE EVENING BECOMING PARTLY CLOUDY. WAVES 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 10 TO 15 KNOTS BECOMING NORTHEAST 5 TO
10 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 3 FEET.

SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.

$$

LHZ441-210930-
PORT AUSTIN TO HARBOR BEACH MI-
946 PM EDT THU APR 20 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...

.REST OF TONIGHT...SOUTH WINDS 15 TO 20 KNOTS VEERING TO THE
SOUTHWEST AFTER MIDNIGHT...THEN BECOMING WEST 20 TO 25 KNOTS
EARLY IN THE MORNING. MOSTLY CLOUDY IN THE LATE EVENING AND EARLY
MORNING BECOMING PARTLY CLOUDY. WAVES 2 TO 4 FEET.
.FRIDAY...WEST WINDS 20 TO 25 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS. MOSTLY CLOUDY. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO
4 FEET LATE IN THE AFTERNOON. WAVES OCCASIONALLY AROUND 7 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY IN
THE EVENING BECOMING PARTLY CLOUDY. WAVES 2 TO 4 FEET SUBSIDING
TO 1 TO 3 FEET EARLY IN THE MORNING.
.SATURDAY...NORTH WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO
10 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 3 FEET.

SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.

$$

LHZ442-210930-
HARBOR BEACH TO PORT SANILAC MI-
946 PM EDT THU APR 20 2017

.REST OF TONIGHT...SOUTHEAST WINDS 15 TO 20 KNOTS BECOMING
SOUTHWEST 10 TO 15 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY THIS
EVENING BECOMING PARTLY CLOUDY. WAVES 2 TO 4 FEET SUBSIDING TO
1 TO 3 FEET AFTER MIDNIGHT.
.FRIDAY...WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS LATE IN THE AFTERNOON. PARTLY CLOUDY EARLY IN THE
MORNING BECOMING MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY IN
THE EVENING BECOMING PARTLY CLOUDY. WAVES 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 10 TO 15 KNOTS. MOSTLY SUNNY. WAVES 1 TO
3 FEET.

SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.

$$

LHZ443-210930-
PORT SANILAC TO PORT HURON MI-
946 PM EDT THU APR 20 2017

.REST OF TONIGHT...SOUTHEAST WINDS 15 TO 20 KNOTS BECOMING
SOUTHWEST 5 TO 10 KNOTS AFTER MIDNIGHT...THEN BECOMING WEST 10 TO
15 KNOTS EARLY IN THE MORNING. MOSTLY CLOUDY THIS EVENING
BECOMING PARTLY CLOUDY. WAVES 1 TO 3 FEET.
.FRIDAY...WEST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS
IN THE LATE MORNING AND EARLY AFTERNOON...THEN BECOMING NORTHWEST
10 TO 15 KNOTS LATE IN THE AFTERNOON. PARTLY CLOUDY EARLY IN THE
MORNING BECOMING MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY
UNTIL EARLY MORNING BECOMING PARTLY CLOUDY. WAVES 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 10 TO 15 KNOTS. MOSTLY SUNNY. WAVES 1 TO
3 FEET.

SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.

$$

LEZ444-210930-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
946 PM EDT THU APR 20 2017

.REST OF TONIGHT...SOUTH WINDS 5 TO 10 KNOTS BECOMING WEST 10 TO
15 KNOTS AFTER MIDNIGHT...THEN INCREASING TO 15 TO 20 KNOTS EARLY
IN THE MORNING. MOSTLY CLOUDY WITH ISOLATED SHOWERS AND
THUNDERSTORMS...THEN PARTLY CLOUDY WITH ISOLATED LIGHT SHOWERS
AFTER MIDNIGHT. PARTLY CLOUDY EARLY IN THE MORNING. WAVES 1 TO
3 FEET.
.FRIDAY...WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS LATE IN THE AFTERNOON. PARTLY CLOUDY. WAVES 1 TO 3 FEET.
.FRIDAY NIGHT...NORTH WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO
10 KNOTS EARLY IN THE MORNING. MOSTLY CLOUDY UNTIL EARLY MORNING
BECOMING PARTLY CLOUDY. WAVES 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 5 TO 10 KNOTS BECOMING NORTHEAST 10 TO
15 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON...THEN
DIMINISHING TO 5 TO 10 KNOTS LATE IN THE AFTERNOON. PARTLY
CLOUDY. WAVES AROUND 2 FEET OR LESS.

SEE LAKE ERIE OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.

THE WATER TEMPERATURE AT BELLE ISLE IS 51.4 DEGREES.

$$

SC

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A WWW.WEATHER.GOV/GREATLAKES



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