Great Lakes Forecast
Issued by NWS

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963
FZUS63 KDTX 220146
GLFLH

OPEN LAKE FORECAST FOR LAKE HURON
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
946 PM EDT TUE MAR 21 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...NEAR 30.70 INCHES...OVER MANITOBA WILL
CONTINUE TO BUILD SOUTHEAST OVER THE GREAT LAKES REGION THROUGH
EARLY THURSDAY MORNING. THE HIGH WILL GRADUALLY WEAKEN TO...30.60
INCHES...DURING THIS PERIOD.

LHZ361-220815-
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
946 PM EDT TUE MAR 21 2017

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


$$

LHZ362-363-220815-
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-
946 PM EDT TUE MAR 21 2017

...GALE WARNING IN EFFECT UNTIL 4 AM EDT WEDNESDAY...

.REST OF TONIGHT...NORTHWEST WINDS 20 TO 25 KNOTS BECOMING NORTH
15 TO 20 KNOTS EARLY IN THE MORNING. GUSTS TO 35 KNOT GALES.
WAVES 8 TO 12 FEET. WAVES OCCASIONALLY AROUND 15 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 20 KNOTS DECREASING TO 10 TO
15 KNOTS EARLY IN THE AFTERNOON...THEN BACKING TO THE NORTHWEST
LATE IN THE AFTERNOON. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY
AROUND 8 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 5 TO 10 KNOTS BACKING TO THE
SOUTH AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.THURSDAY...SOUTH WINDS 5 TO 10 KNOTS INCREASING TO 15 TO
20 KNOTS. WAVES 2 FEET OR LESS BUILDING TO 3 TO 5 FEET IN THE
LATE MORNING AND AFTERNOON.
.THURSDAY NIGHT...SOUTH WINDS 15 TO 20 KNOTS DECREASING TO 10 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN IN THE EVENING. A
CHANCE OF SNOW. RAIN...SLEET AND A CHANCE OF FREEZING RAIN AFTER
MIDNIGHT. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY AROUND 8 FEET.
.FRIDAY...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS LATE IN THE MORNING...THEN BECOMING NORTHEAST 10 TO
15 KNOTS LATE IN THE EVENING. SLEET AND A CHANCE OF FREEZING RAIN
IN THE MORNING. RAIN. SNOW LATE IN THE EVENING. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET.
.SATURDAY...NORTHEAST WINDS 15 TO 20 KNOTS BECOMING EAST 20 TO
25 KNOTS WITH GUSTS TO 30 KNOTS IN THE LATE EVENING AND EARLY
MORNING. RAIN WITH SNOW LIKELY EARLY IN THE MORNING...THEN A
CHANCE OF RAIN AND SNOW. WAVES 4 TO 6 FEET BUILDING TO 6 TO
9 FEET IN THE LATE EVENING AND EARLY MORNING. WAVES OCCASIONALLY
AROUND 12 FEET.
.SUNDAY...EAST WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS
DECREASING TO 15 TO 20 KNOTS IN THE LATE EVENING AND EARLY
MORNING. SNOW WITH RAIN LIKELY...THEN A CHANCE OF RAIN AND SNOW
IN THE LATE EVENING AND EARLY MORNING. WAVES 6 TO 9 FEET. WAVES
OCCASIONALLY AROUND 12 FEET.


$$

LHZ462>464-220815-
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-
946 PM EDT TUE MAR 21 2017

...GALE WARNING IN EFFECT UNTIL 4 AM EDT WEDNESDAY...

.REST OF TONIGHT...NORTHWEST WINDS TO 30 KNOTS BECOMING NORTH
20 TO 25 KNOTS AFTER MIDNIGHT. GUSTS TO 35 KNOT GALES. A CHANCE
OF SNOW SHOWERS. WAVES 8 TO 12 FEET. WAVES OCCASIONALLY AROUND
15 FEET.
.WEDNESDAY...NORTH WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS
DECREASING TO 10 TO 15 KNOTS. A CHANCE OF SNOW SHOWERS EARLY IN
THE MORNING. WAVES 5 TO 7 FEET SUBSIDING TO 2 TO 4 FEET LATE IN
THE AFTERNOON. WAVES OCCASIONALLY AROUND 10 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 10 KNOTS EARLY IN THE EVENING
BECOMING LIGHT AND VARIABLE. WAVES 1 TO 3 FEET.
.THURSDAY...SOUTH WINDS 5 TO 10 KNOTS INCREASING TO 10 TO
15 KNOTS IN THE LATE MORNING AND AFTERNOON. WAVES 1 TO 3 FEET
BUILDING TO 2 TO 4 FEET EARLY IN THE AFTERNOON.
.THURSDAY NIGHT...SOUTH WINDS 10 TO 15 KNOTS INCREASING TO 15 TO
20 KNOTS IN THE LATE EVENING AND EARLY MORNING...THEN DECREASING
TO 10 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN IN THE
EVENING. A CHANCE OF SNOW UNTIL EARLY MORNING. RAIN AFTER
MIDNIGHT. WAVES 2 TO 4 FEET.
.FRIDAY...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS LATE IN THE MORNING...THEN BACKING TO THE NORTHEAST LATE
IN THE EVENING. RAIN. WAVES 2 TO 4 FEET SUBSIDING TO 2 FEET OR
LESS.
.SATURDAY...NORTHEAST WINDS 10 TO 15 KNOTS BECOMING EAST 15 TO
20 KNOTS IN THE LATE EVENING AND EARLY MORNING. RAIN AND SNOW.
WAVES 3 TO 5 FEET.
.SUNDAY...EAST WINDS 15 TO 20 KNOTS DECREASING TO 10 TO 15 KNOTS
IN THE LATE EVENING AND EARLY MORNING. SNOW, RAIN...THEN A CHANCE
OF RAIN IN THE LATE EVENING AND EARLY MORNING. WAVES 4 TO 6 FEET.
WAVES OCCASIONALLY AROUND 8 FEET.


$$

LHZ461-220815-
MAFOR 2203/
HURON NORTH...GALE WARNING IN EFFECT...12820 13810 11700
12710. WAVES 3 TO 5 FEET OVERNIGHT. WAVES 1 TO 3 FEET WEDNESDAY
AND WEDNESDAY EVENING. 210305 210204.

HURON SOUTH...GALE WARNING IN EFFECT...11830 19850 11830 12820
12810 11800 11700. A CHANCE OF SNOW SHOWERS OVERNIGHT AND
WEDNESDAY MORNING. WAVES 6 TO 9 FEET. OCCASIONAL WAVE HEIGHT
AROUND 12 FEET OVERNIGHT. WAVES 5 TO 7 FEET SUBSIDING TO 2 TO 4
FEET. OCCASIONAL WAVE HEIGHT AROUND 10 FEET WEDNESDAY. WAVES 2
FEET OR LESS WEDNESDAY EVENING. 210609 210508.

$$

MR

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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