Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 180151
GLFLH

OPEN LAKE FORECAST FOR LAKE HURON
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
949 PM EDT MON APR 17 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OFF SHORE ON LAKE HURON

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 AVERAGING 30.10 INCHES...WILL REMAIN IN
PLACE ACROSS THE GREAT LAKES THROUGH TUESDAY. LOW PRESSURE...29.60
INCHES...WILL THEN PUSH EAST FROM THE NORTH CENTRAL PLAINS INTO
SOUTHERN ONTARIO TUESDAY INTO WEDNESDAY. A SECOND LOW PRESSURE
SYSTEM...29.60 INCHES...IS THEN EXPECTED TO MOVE IN FROM THE CENTRAL
PLAINS INTO THE LOWER PENINSULA WEDNESDAY INTO THURSDAY...BRINGING
THE LIKELY CHANCE FOR RAIN AND POSSIBLE CHANCE FOR THUNDERSTORMS.
HIGH PRESSURE...30.40 INCHES... WILL THEN SETTLE BACK IN ACROSS
MICHIGAN BY SATURDAY.

LHZ361-180800-
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
949 PM EDT MON APR 17 2017

.REST OF TONIGHT...LIGHT AND VARIABLE WINDS. WAVES 2 FEET OR
LESS.
.TUESDAY...SOUTHEAST WINDS 5 TO 10 KNOTS INCREASING TO 15 TO
20 KNOTS. WAVES 1 TO 3 FEET BUILDING TO 4 TO 6 FEET IN THE
AFTERNOON. WAVES OCCASIONALLY AROUND 8 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 15 TO 20 KNOTS BECOMING SOUTH
10 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES 4 TO
6 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS VEERING TO THE WEST IN
THE LATE MORNING AND AFTERNOON. A CHANCE OF SHOWERS EARLY IN THE
MORNING. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY AROUND 8 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 5 TO 10 KNOTS BECOMING NORTH
10 TO 15 KNOTS IN THE LATE EVENING AND EARLY MORNING...THEN
BECOMING NORTHEAST 15 TO 20 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY
AFTER MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 3 TO 5 FEET AFTER
MIDNIGHT.
.THURSDAY...NORTHEAST WINDS 15 TO 20 KNOTS WITH GUSTS TO 30 KNOTS
DECREASING TO 10 TO 15 KNOTS LATE IN THE AFTERNOON...THEN
INCREASING TO 15 TO 20 KNOTS LATE IN THE EVENING. RAIN AND SNOW
SHOWERS LIKELY...THEN A CHANCE OF RAIN AND SNOW SHOWERS LATE IN
THE AFTERNOON. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY AROUND
8 FEET.
.FRIDAY...NORTH WINDS 10 TO 15 KNOTS DECREASING TO 5 TO 10 KNOTS.
A CHANCE OF SNOW SHOWERS AND SHOWERS EARLY IN THE MORNING. WAVES
3 TO 5 FEET SUBSIDING TO 2 FEET OR LESS UNTIL EARLY MORNING.
.SATURDAY...NORTH WINDS 5 TO 10 KNOTS EARLY IN THE MORNING
BECOMING LIGHT AND VARIABLE. WAVES 2 FEET OR LESS.


$$

LHZ362-363-180800-
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
949 PM EDT MON APR 17 2017

.REST OF TONIGHT...NORTH WINDS 5 TO 10 KNOTS THIS EVENING
BECOMING LIGHT AND VARIABLE...THEN BECOMING EAST 5 TO 10 KNOTS
EARLY IN THE MORNING. WAVES 2 FEET OR LESS.
.TUESDAY...EAST WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST 10 TO
15 KNOTS IN THE LATE MORNING AND AFTERNOON. WAVES 2 FEET OR LESS
BUILDING TO 2 TO 4 FEET IN THE AFTERNOON.
.TUESDAY NIGHT...SOUTHEAST WINDS 15 TO 20 KNOTS WITH GUSTS TO
30 KNOTS BECOMING SOUTH 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS
AFTER MIDNIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES 4 TO
6 FEET BUILDING TO 5 TO 7 FEET AFTER MIDNIGHT. WAVES OCCASIONALLY
AROUND 10 FEET.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS VEERING TO THE
NORTHWEST EARLY IN THE AFTERNOON. A CHANCE OF SHOWERS EARLY IN
THE MORNING. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY AROUND 8 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 10 TO 15 KNOTS BECOMING NORTHEAST
15 TO 20 KNOTS WITH GUSTS TO 30 KNOTS AFTER MIDNIGHT. SHOWERS
LIKELY AFTER MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 4 TO 6 FEET
AFTER MIDNIGHT. WAVES OCCASIONALLY AROUND 8 FEET.
.THURSDAY...NORTHEAST WINDS 20 TO 25 KNOTS WITH GUSTS TO
30 KNOTS. SHOWERS...THEN A CHANCE OF SHOWERS EARLY IN THE
EVENING. WAVES 6 TO 9 FEET. WAVES OCCASIONALLY AROUND 12 FEET.
.FRIDAY...NORTH WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS
DECREASING TO 10 TO 15 KNOTS. A CHANCE OF RAIN AND SNOW SHOWERS
EARLY IN THE MORNING. WAVES 6 TO 9 FEET SUBSIDING TO 2 TO 4 FEET
IN THE LATE EVENING AND EARLY MORNING. WAVES OCCASIONALLY AROUND
12 FEET.
.SATURDAY...NORTH WINDS 10 TO 15 KNOTS BECOMING NORTHEAST 5 TO
10 KNOTS. WAVES 1 TO 3 FEET.


$$

LHZ462>464-180800-
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-
949 PM EDT MON APR 17 2017

.REST OF TONIGHT...NORTHEAST WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR
LESS.
.TUESDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR LESS.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS INCREASING TO
15 TO 20 KNOTS IN THE LATE EVENING AND OVERNIGHT. A CHANCE OF
SHOWERS AFTER MIDNIGHT. A CHANCE OF THUNDERSTORMS EARLY IN THE
MORNING. WAVES 1 TO 3 FEET BUILDING TO 3 TO 5 FEET IN THE LATE
EVENING AND OVERNIGHT.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS EARLY IN THE AFTERNOON. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET EARLY
IN THE AFTERNOON.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 10 KNOTS BECOMING NORTHEAST
10 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. SHOWERS AND THUNDERSTORMS LIKELY
AFTER MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET AFTER
MIDNIGHT.
.THURSDAY...NORTHEAST WINDS 10 TO 15 KNOTS. SHOWERS WITH
THUNDERSTORMS LIKELY UNTIL LATE AFTERNOON...THEN A CHANCE OF
THUNDERSTORMS EARLY IN THE AFTERNOON. A CHANCE OF SHOWERS. WAVES
6 TO 9 FEET. WAVES OCCASIONALLY AROUND 12 FEET.
.FRIDAY...NORTH WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS
DECREASING TO 10 TO 15 KNOTS. A CHANCE OF SHOWERS EARLY IN THE
MORNING. WAVES 6 TO 9 FEET SUBSIDING TO 3 TO 5 FEET IN THE LATE
EVENING AND EARLY MORNING. WAVES OCCASIONALLY AROUND 12 FEET.
.SATURDAY...NORTH WINDS 5 TO 10 KNOTS BECOMING NORTHEAST 10 TO
15 KNOTS. A CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES 1 TO 3 FEET.


$$

LHZ461-180800-
MAFOR 1803/
HURON NORTH 11600 11400 11300 14310 11320. A CHANCE OF
SHOWERS TUESDAY EVENING. WAVES 2 FEET OR LESS OVERNIGHT. WAVES 2
FEET OR LESS BUILDING TO 1 TO 3 FEET TUESDAY. WAVES 2 TO 4 FEET
TUESDAY EVENING. 220001.

HURON SOUTH 11100 12200 13300 11310 11320. WAVES 1 TO 3 FEET.
220103.

$$

CB

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/DTX/GLFTABLE (ALL LOWER CASE)

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES (ALL LOWER CASE)



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