Great Lakes Forecast
Issued by NWS

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183
FZUS63 KDTX 201339
GLFLH

OPEN LAKE FORECAST FOR LAKE HURON
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
939 AM EDT MON MAR 20 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...LOW PRESSURE OF 28.80 INCHES WILL MOVE OVER OVER HUDSON
BAY AND FORCE A COLD FRONT THROUGH THE AREA TODAY. A SECONDARY COLD
FRONT WILL PUSH DUE SOUTHWARD ACROSS THE REGION ON TUESDAY. IN THE
WAKE OF THIS FRONT...A LARGE AREA OF HIGH PRESSURE AT 30.70 INCHES
WILL GRADUALLY SETTLE INTO THE GREAT LAKES THROUGH THE MIDDLE OF
NEXT WEEK.

LHZ361-202015-
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
939 AM EDT MON MAR 20 2017

...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE
TUESDAY NIGHT...

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


$$

LHZ362-363-202015-
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-
939 AM EDT MON MAR 20 2017

...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE
TUESDAY NIGHT...

.REST OF TODAY...SOUTH WINDS 10 TO 15 KNOTS DECREASING TO 5 TO
10 KNOTS IN THE AFTERNOON. A CHANCE OF SHOWERS LATE IN THE
AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET LATE IN THE
AFTERNOON.
.TONIGHT...LIGHT AND VARIABLE WINDS BECOMING NORTHWEST 5 TO
10 KNOTS LATE IN THE EVENING...THEN INCREASING TO 10 TO 15 KNOTS
AFTER MIDNIGHT. A CHANCE OF SHOWERS EARLY IN THE EVENING. WAVES
1 TO 3 FEET.
.TUESDAY...WEST WINDS 10 TO 15 KNOTS BECOMING NORTHWEST 20 TO
25 KNOTS WITH GUSTS TO 35 KNOT GALES EARLY IN THE AFTERNOON.
WAVES 1 TO 3 FEET BUILDING TO 6 TO 9 FEET. WAVES OCCASIONALLY
AROUND 12 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS TO 30 KNOTS WITH GUSTS TO
40 KNOT GALES BECOMING NORTH 20 TO 25 KNOTS WITH GUSTS TO 35 KNOT
GALES IN THE LATE EVENING AND OVERNIGHT. WAVES 8 TO 12 FEET.
WAVES OCCASIONALLY AROUND 15 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 5 TO
10 KNOTS. WAVES 5 TO 7 FEET SUBSIDING TO 1 TO 3 FEET LATE IN THE
AFTERNOON. WAVES OCCASIONALLY AROUND 10 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON...THEN
INCREASING TO 15 TO 20 KNOTS UNTIL EARLY MORNING. SNOW AND RAIN
AFTER MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 3 TO 5 FEET UNTIL
EARLY MORNING.
.FRIDAY...SOUTH WINDS 10 TO 15 KNOTS DECREASING TO 5 TO 10 KNOTS.
SNOW EARLY IN THE MORNING. RAIN. WAVES 2 TO 4 FEET SUBSIDING TO
1 TO 3 FEET UNTIL EARLY MORNING.


$$

LHZ462>464-202015-
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-
939 AM EDT MON MAR 20 2017

...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE
TUESDAY NIGHT...

.REST OF TODAY...SOUTH WINDS 10 TO 15 KNOTS DECREASING TO 5 TO
10 KNOTS IN THE AFTERNOON. A CHANCE OF SHOWERS LATE IN THE
AFTERNOON. WAVES 1 TO 3 FEET.
.TONIGHT...LIGHT AND VARIABLE WINDS BECOMING NORTHWEST 5 TO
10 KNOTS AFTER MIDNIGHT...THEN INCREASING TO 10 TO 15 KNOTS EARLY
IN THE MORNING. A CHANCE OF SHOWERS EARLY IN THE EVENING. WAVES
2 FEET OR LESS.
.TUESDAY...NORTHWEST WINDS 10 TO 15 KNOTS BECOMING WEST 5 TO
10 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON...THEN
INCREASING TO 10 TO 15 KNOTS EARLY IN THE AFTERNOON. WAVES 1 TO
3 FEET BUILDING TO 3 TO 5 FEET EARLY IN THE AFTERNOON.
.TUESDAY NIGHT...NORTHWEST WINDS 20 TO 25 KNOTS WITH GUSTS TO
40 KNOT GALES BECOMING NORTH TO 30 KNOTS WITH GUSTS TO 40 KNOT
GALES IN THE LATE EVENING AND EARLY MORNING...THEN DECREASING TO
20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS AFTER MIDNIGHT. WAVES 8 TO
12 FEET. WAVES OCCASIONALLY AROUND 15 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 20 KNOTS WITH GUSTS TO 30 KNOTS
BECOMING LIGHT AND VARIABLE. WAVES 5 TO 7 FEET SUBSIDING TO 1 TO
3 FEET. WAVES OCCASIONALLY AROUND 10 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS. RAIN AND SNOW AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.FRIDAY...SOUTH WINDS 10 TO 15 KNOTS DECREASING TO 5 TO 10 KNOTS
EARLY IN THE EVENING...THEN BECOMING SOUTHWEST 10 TO 15 KNOTS IN
THE LATE EVENING AND EARLY MORNING. SNOW EARLY IN THE MORNING.
RAIN. WAVES 1 TO 3 FEET.


$$

LHZ461-202015-
MAFOR 2015/
HURON NORTH 12500 11600 14700 11610. WAVES 1 TO 3 FEET.
220203.

HURON SOUTH 11410 11400 11500 12700 12710 11700. A CHANCE OF
SHOWERS THIS AFTERNOON AND EVENING. WAVES 1 TO 3 FEET THIS
AFTERNOON. WAVES 2 FEET OR LESS TONIGHT AND TUESDAY MORNING.
220103.

$$

SF

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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