Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 200742
NSHDTX

NEARSHORE MARINE FORECAST FOR MICHIGAN
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
342 AM 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.

LHZ422-201515-
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
342 AM EDT THU APR 20 2017

.TODAY...EAST WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO 15 KNOTS
IN THE AFTERNOON. SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING WEST 15 TO
20 KNOTS IN THE LATE EVENING AND OVERNIGHT. BECOMING PARTLY
CLOUDY EARLY IN THE MORNING. SHOWERS AND THUNDERSTORMS EARLY IN
THE EVENING...THEN A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
LATE IN THE EVENING. WAVES 1 TO 3 FEET.
.FRIDAY...WEST WINDS 15 TO 20 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 DIMINISHING TO
10 TO 15 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLOUDY
EARLY IN THE EVENING BECOMING PARTLY CLOUDY. WAVES AROUND 2 FEET
OR LESS.

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

$$

LHZ421-201515-
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-
342 AM EDT THU APR 20 2017

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

.TODAY...EAST WINDS 20 TO 25 KNOTS. SHOWERS AND THUNDERSTORMS.
WAVES 5 TO 7 FEET. WAVES OCCASIONALLY AROUND 10 FEET.
.TONIGHT...WEST WINDS 15 TO 20 KNOTS. BECOMING PARTLY CLOUDY
EARLY IN THE MORNING. SHOWERS AND THUNDERSTORMS EARLY IN THE
EVENING...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN THE
EVENING. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET AFTER
MIDNIGHT. WAVES OCCASIONALLY AROUND 7 FEET.
.FRIDAY...WEST WINDS 20 TO 25 KNOTS BECOMING NORTHWEST 15 TO
20 KNOTS IN THE AFTERNOON. MOSTLY CLOUDY. WAVES 3 TO 5 FEET
SUBSIDING TO 1 TO 3 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 1 TO 3 FEET BUILDING TO
2 TO 4 FEET IN THE LATE EVENING AND EARLY MORNING...THEN
SUBSIDING TO 1 TO 3 FEET EARLY IN THE MORNING.

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

$$

LHZ441-201515-
PORT AUSTIN TO HARBOR BEACH MI-
342 AM EDT THU APR 20 2017

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

.TODAY...SOUTHEAST WINDS 20 TO 25 KNOTS. SHOWERS AND
THUNDERSTORMS. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY AROUND
7 FEET.
.TONIGHT...SOUTH WINDS 15 TO 20 KNOTS VEERING TO THE WEST IN THE
LATE EVENING AND OVERNIGHT. BECOMING PARTLY CLOUDY EARLY IN THE
MORNING. SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING...THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN THE EVENING. A SLIGHT
CHANCE OF LIGHT SHOWERS AFTER MIDNIGHT. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY AROUND 7 FEET.
.FRIDAY...WEST WINDS 20 TO 25 KNOTS DIMINISHING TO 15 TO 20 KNOTS
IN THE AFTERNOON. MOSTLY CLOUDY. WAVES 3 TO 5 FEET SUBSIDING TO
1 TO 3 FEET LATE IN THE AFTERNOON. WAVES OCCASIONALLY AROUND
7 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS INCREASING TO
15 TO 20 KNOTS LATE IN THE EVENING...THEN BECOMING NORTH 10 TO
15 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY IN THE EVENING BECOMING
PARTLY CLOUDY. WAVES 2 TO 4 FEET.

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

$$

LHZ442-201515-
HARBOR BEACH TO PORT SANILAC MI-
342 AM EDT THU APR 20 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS EVENING...

.TODAY...EAST WINDS 10 TO 15 KNOTS BECOMING SOUTHEAST 15 TO
20 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON...THEN
DIMINISHING TO 10 TO 15 KNOTS LATE IN THE AFTERNOON. LIGHT
SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FEET BUILDING TO 3 TO
5 FEET IN THE LATE MORNING AND AFTERNOON. WAVES OCCASIONALLY
AROUND 7 FEET.
.TONIGHT...SOUTH WINDS 10 TO 15 KNOTS VEERING TO THE WEST IN THE
LATE EVENING AND OVERNIGHT. BECOMING PARTLY CLOUDY AFTER
MIDNIGHT. SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING...THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN THE EVENING. A SLIGHT
CHANCE OF LIGHT SHOWERS AFTER MIDNIGHT. WAVES 3 TO 5 FEET
SUBSIDING TO 1 TO 3 FEET AFTER MIDNIGHT. WAVES OCCASIONALLY
AROUND 7 FEET.
.FRIDAY...WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS LATE IN THE AFTERNOON. 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
BUILDING TO 2 TO 4 FEET IN THE LATE EVENING AND OVERNIGHT.

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

$$

LHZ443-201515-
PORT SANILAC TO PORT HURON MI-
342 AM EDT THU APR 20 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS EVENING...

.TODAY...EAST WINDS 10 TO 15 KNOTS BECOMING SOUTHEAST 15 TO
20 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON...THEN
DIMINISHING TO 10 TO 15 KNOTS LATE IN THE AFTERNOON. LIGHT
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET BUILDING TO 2 TO
4 FEET IN THE LATE MORNING AND AFTERNOON.
.TONIGHT...SOUTH WINDS 10 TO 15 KNOTS VEERING TO THE WEST IN THE
LATE EVENING AND OVERNIGHT. SHOWERS AND THUNDERSTORMS IN THE
EVENING...THEN PARTLY CLOUDY WITH A SLIGHT CHANCE OF LIGHT
SHOWERS AFTER MIDNIGHT. PARTLY CLOUDY EARLY IN THE MORNING. 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.

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

$$

LEZ444-201515-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
342 AM EDT THU APR 20 2017

.TODAY...SOUTHEAST WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO
20 KNOTS IN THE AFTERNOON. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE MORNING...THEN SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. WAVES 1 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST 10 TO
15 KNOTS IN THE LATE EVENING AND OVERNIGHT. BECOMING PARTLY
CLOUDY AFTER MIDNIGHT. SHOWERS AND THUNDERSTORMS EARLY IN THE
EVENING...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN THE
EVENING. A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES 1 TO
3 FEET.
.FRIDAY...WEST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. WAVES AROUND
2 FEET OR LESS.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS BECOMING NORTH
5 TO 10 KNOTS EARLY IN THE MORNING. MOSTLY CLOUDY UNTIL EARLY
MORNING BECOMING 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 52.4 DEGREES.

$$

JVC

YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE
A WWW.WEATHER.GOV/GREATLAKES



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