Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 201943
GLFLH

OPEN LAKE FORECAST FOR LAKE HURON
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
343 PM EDT SAT AUG 20 2016

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 WILL LIFT NORTHEAST AND
DEEPEN....AVERAGING 29.40 INCHES...AS IT MOVES ACROSS THE NORTHERN
GREAT LAKES REGION.  HIGH PRESSURE BUILDING IN FROM THE OHIO VALLEY
WILL THEN BRING IN COOLER AIR BEHIND THE EXITING LOW ON SUNDAY.

LHZ361-362-210815-
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
343 PM EDT SAT AUG 20 2016

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
EVENING...

.TONIGHT...SOUTH WINDS 20 TO 25 KNOTS...BECOMING SOUTHWEST TO
30 KNOTS LATE. GUSTS TO 35 KNOT GALES. SHOWERS AND THUNDERSTORMS
LIKELY THROUGH MIDNIGHT...THEN A CHANCE OF SHOWERS AFTER
MIDNIGHT. WAVES 8 TO 12 FEET. WAVES OCCASIONALLY AROUND 15 FEET.
.SUNDAY...SOUTHWEST WINDS TO 30 KNOTS...BECOMING WEST GALES TO
35 KNOTS BY LATE MORNING...THEN DIMINISHING TO 30 KNOTS LATE.
GUSTS TO 45 KNOT GALES. A CHANCE OF WATERSPOUTS. A CHANCE OF
SHOWERS. WAVES 10 TO 14 FEET. WAVES OCCASIONALLY AROUND 18 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS WITH GUSTS TO
30 KNOTS...DIMINISHING TO 10 TO 15 KNOTS AFTER MIDNIGHT. WAVES
10 TO 14 FEET...SUBSIDING TO 2 TO 4 FEET OVERNIGHT. WAVES
OCCASIONALLY AROUND 18 FEET.
.MONDAY...WEST WINDS 10 TO 15 KNOTS. WAVES 2 TO 4 FEET...
SUBSIDING TO 1 TO 3 FEET IN THE AFTERNOON...THEN BUILDING TO 2 TO
4 FEET LATE.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS...INCREASING TO
10 TO 15 KNOTS AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. WAVES 3 TO 5 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO
20 KNOTS IN THE AFTERNOON...THEN DIMINISHING TO 10 TO 15 KNOTS
LATE. A CHANCE OF SHOWERS AND THUNDERSTORMS LATE. WAVES 2 TO
4 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 10 KNOTS...VEERING TO THE
NORTHWEST BY MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES 2 TO 4 FEET...SUBSIDING TO 1 TO 3 FEET LATE.


$$

LHZ363-462-210815-
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-
343 PM EDT SAT AUG 20 2016

...GALE WARNING IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH
SUNDAY AFTERNOON...

.TONIGHT...SOUTH WINDS 20 TO 25 KNOTS...BECOMING SOUTHWEST TO
30 KNOTS AFTER MIDNIGHT. GUSTS TO 35 KNOT GALES. SHOWERS AND
THUNDERSTORMS LIKELY EARLY THIS EVENING...THEN A CHANCE OF
THUNDERSTORMS BY MIDNIGHT. A CHANCE OF SHOWERS BY MIDNIGHT. WAVES
6 TO 9 FEET...BUILDING TO 8 TO 12 FEET LATE. WAVES OCCASIONALLY
AROUND 15 FEET.
.SUNDAY...SOUTHWEST WINDS TO 30 KNOTS...BECOMING WEST 20 TO
25 KNOTS LATE. GUSTS TO 40 KNOT GALES. A CHANCE OF WATERSPOUTS. A
CHANCE OF SHOWERS BY MID AFTERNOON. WAVES 10 TO 14 FEET. WAVES
OCCASIONALLY AROUND 18 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS WITH GUSTS TO
30 KNOTS...DIMINISHING TO 10 TO 15 KNOTS AFTER MIDNIGHT. WAVES
8 TO 12 FEET...SUBSIDING TO 4 TO 6 FEET AFTER MIDNIGHT. WAVES
OCCASIONALLY AROUND 15 FEET.
.MONDAY...WEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS IN THE AFTERNOON...THEN BECOMING SOUTHWEST 10 TO
15 KNOTS LATE. WAVES 2 TO 4 FEET...SUBSIDING TO 1 TO 3 FEET BY
AFTERNOON.
.MONDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS. WAVES 1 TO
3 FEET.
.TUESDAY...SOUTHWEST WINDS 15 TO 20 KNOTS...DIMINISHING TO 10 TO
15 KNOTS. WAVES 2 TO 4 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO
20 KNOTS LATE. A CHANCE OF THUNDERSTORMS LATE. A CHANCE OF
SHOWERS. WAVES 1 TO 3 FEET...BUILDING TO 2 TO 4 FEET LATE.
.THURSDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...BECOMING WEST 5 TO
10 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 2 TO
4 FEET...SUBSIDING TO 1 TO 3 FEET LATE.


$$

LHZ463-464-210815-
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-
343 PM EDT SAT AUG 20 2016

.TONIGHT...SOUTH WINDS 15 TO 20 KNOTS...INCREASING TO 20 TO
25 KNOTS BY MIDNIGHT...THEN DIMINISHING TO 15 TO 20 KNOTS WITH
GUSTS TO 30 KNOTS AFTER MIDNIGHT...BECOMING SOUTHWEST 20 TO
25 KNOTS WITH GUSTS TO 30 KNOTS LATE. SHOWERS AND THUNDERSTORMS
LIKELY THROUGH MIDNIGHT...THEN A CHANCE OF SHOWERS AFTER
MIDNIGHT. WAVES 4 TO 6 FEET.
.SUNDAY...WEST WINDS 20 TO 25 KNOTS. GUSTS TO 30 KNOTS. A CHANCE
OF WATERSPOUTS. A CHANCE OF SHOWERS BY MID AFTERNOON. WAVES 5 TO
7 FEET. WAVES OCCASIONALLY AROUND 10 FEET.
.SUNDAY NIGHT...WEST WINDS 15 TO 20 KNOTS...BECOMING NORTHWEST
10 TO 15 KNOTS AFTER MIDNIGHT. WAVES 5 TO 7 FEET. WAVES
OCCASIONALLY AROUND 10 FEET.
.MONDAY...NORTHWEST WINDS 5 TO 10 KNOTS...BACKING TO THE WEST BY
AFTERNOON. WAVES 1 TO 3 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR
LESS.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...BECOMING SOUTH 5 TO
10 KNOTS AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.WEDNESDAY...SOUTH WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO
15 KNOTS. A CHANCE OF. A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS LATE. WAVES 1 TO 3 FEET.
.THURSDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...BECOMING WEST 5 TO
10 KNOTS LATE. A CHANCE OF SHOWERS AND THUNDERSTORMS LATE...THEN
SHOWERS AND THUNDERSTORMS LIKELY. A CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH MIDNIGHT. WAVES 1 TO 3 FEET.


$$

LHZ461-210815-
MAFOR 2021/
HURON NORTH...GALE WARNING IN EFFECT...11329 11439 11449
11530 11540 19550 11550 12650. A CHANCE OF WATERSPOUTS EARLY
IN THE AFTERNOON. A CHANCE OF SHOWERS EARLY SUNDAY AFTERNOON.
WAVES 3 TO 5 FEET BUILDING TO 6 TO 9 FEET OVERNIGHT WITH MAXIMUM
WAVE HEIGHT AROUND 12 FEET TONIGHT. WAVES 10 TO 14 FEET WITH
MAXIMUM WAVE HEIGHT AROUND 17 FEET SUNDAY. 210305 210507.

HURON SOUTH...GALE WARNING IN EFFECT...11429 12439 13540 19550
12640 19650. A CHANCE OF WATERSPOUTS EARLY IN THE AFTERNOON. A
CHANCE OF SHOWERS LATE SUNDAY. WAVES 3 TO 5 FEET BUILDING TO 6 TO
9 FEET OVERNIGHT WITH MAXIMUM WAVE HEIGHT AROUND 12 FEET TONIGHT.
WAVES 8 TO 12 FEET WITH MAXIMUM WAVE HEIGHT AROUND 14 FEET
SUNDAY. 210204 210406.

$$

SC

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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