Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 022245 AAA
GLFLH

OPEN LAKE FORECAST FOR LAKE HURON...UPDATED
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
643 PM EDT SUN AUG 2 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF 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...A TROUGH OF LOW PRESSURE...DEEPENING TO 29.50
INCHES...WILL TRACK ACROSS LAKE HURON TONIGHT. THIS WILL PUSH A COLD
FRONT DOWN THROUGH THE CENTRAL GREAT LAKES...TRIGGERING SHOWERS AND
THUNDERSTORMS THIS EVENING AND TONIGHT. SOME OF THESE STORMS MAY
BECOME SEVERE. THE TROUGH WILL MOVE EAST MONDAY...GRADUALLY ALLOWING
HIGH PRESSURE TO BUILD INTO THE AREA BY WEDNESDAY.

LHZ361-362-030800-
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-
643 PM EDT SUN AUG 2 2015

.TONIGHT...NORTH WINDS 5 TO 10 KNOTS...BACKING TO THE SOUTHWEST
BY MIDNIGHT...THEN INCREASING TO 10 TO 15 KNOTS AFTER MIDNIGHT...
VEERING TO THE WEST LATE. SHOWERS AND THUNDERSTORMS EARLY THIS
EVENING...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS BY MIDNIGHT.
WAVES 2 TO 4 FEET.
.MONDAY...WEST WINDS 5 TO 10 KNOTS. WAVES 1 TO 3 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 15 KNOTS. WAVES 2 TO 4 FEET.
.TUESDAY...WEST WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO
20 KNOTS LATE. A CHANCE OF SHOWERS. WAVES 2 TO 4 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS. WAVES 3 TO
5 FEET.
.WEDNESDAY...NORTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS. WAVES 2 TO 4 FEET...SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTH WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR LESS.
.FRIDAY...NORTHEAST WINDS 5 TO 10 KNOTS. WAVES 1 TO 3 FEET.


$$

LHZ462-030800-
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-
643 PM EDT SUN AUG 2 2015

...SEVERE THUNDERSTORM WATCH 463 IN EFFECT UNTIL 2 AM EDT
MONDAY...

.TONIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS...VEERING TO THE WEST
LATE. SHOWERS AND THUNDERSTORMS THROUGH MIDNIGHT. SOME THUNDERSTORMS
MAY BE SEVERE WITH DAMAGING WINDS AND LARGE HAIL. WAVES 3 TO 5
FEET...SUBSIDING TO 2 TO 4 FEET AFTER MIDNIGHT.
.MONDAY...WEST WINDS 5 TO 10 KNOTS EARLY...BECOMING LIGHT AND
VARIABLE. A CHANCE OF SHOWERS AND THUNDERSTORMS BY LATE MORNING.
WAVES 2 FEET OR LESS.
.MONDAY NIGHT...NORTH WINDS 5 TO 10 KNOTS...BACKING TO THE
NORTHWEST LATE. A CHANCE OF SHOWERS. WAVES 1 TO 3 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 15 KNOTS...BECOMING WEST 5 TO
10 KNOTS BY AFTERNOON. A CHANCE OF SHOWERS. WAVES 1 TO 3 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS...INCREASING TO
15 TO 20 KNOTS AFTER MIDNIGHT. WAVES 1 TO 3 FEET...BUILDING TO
2 TO 4 FEET AFTER MIDNIGHT.
.WEDNESDAY...NORTHWEST WINDS 5 TO 10 KNOTS...VEERING TO THE
NORTH. WAVES 2 TO 4 FEET...SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO
15 KNOTS LATE. WAVES 1 TO 3 FEET.
.FRIDAY...NORTHEAST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS BY MIDNIGHT. WAVES 1 TO 3 FEET.


$$

LHZ363-030800-
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
643 PM EDT SUN AUG 2 2015

...SEVERE THUNDERSTORM WATCH 462 IN EFFECT UNTIL 11 PM EDT THIS
EVENING...

.TONIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS...VEERING TO THE WEST
LATE. THUNDERSTORMS EARLY THIS EVENING. SHOWERS THROUGH MIDNIGHT.
THUNDERSTORMS BY MIDNIGHT. SOME THUNDERSTORMS MAY BE SEVERE WITH
DAMAGING WINDS AND LARGE HAIL THIS EVENING. WAVES 3 TO 5 FEET.
.MONDAY...LIGHT AND VARIABLE WINDS. A CHANCE OF SHOWERS AND
THUNDERSTORMS BY LATE MORNING. WAVES 1 TO 3 FEET.
.MONDAY NIGHT...LIGHT AND VARIABLE WINDS...BECOMING NORTHWEST
5 TO 10 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES 1 TO
3 FEET...BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
.TUESDAY...WEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS BY AFTERNOON. A CHANCE OF SHOWERS. WAVES 1 TO 3 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS...INCREASING TO
15 TO 20 KNOTS AFTER MIDNIGHT. WAVES 2 TO 4 FEET.
.WEDNESDAY...NORTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS IN THE AFTERNOON...THEN BECOMING LIGHT AND VARIABLE IN
THE EVENING...BECOMING NORTH 5 TO 10 KNOTS AFTER MIDNIGHT. WAVES
2 TO 4 FEET...SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 10 KNOTS. WAVES 1 TO 3 FEET.
.FRIDAY...NORTHEAST WINDS 10 TO 15 KNOTS...BECOMING NORTH 5 TO
10 KNOTS LATE. WAVES 1 TO 3 FEET.


$$

LHZ463-464-030800-
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-
643 PM EDT SUN AUG 2 2015

...SEVERE THUNDERSTORM WATCH 463 IN EFFECT UNTIL 2 AM EDT
MONDAY...

.TONIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS BY MIDNIGHT...THEN INCREASING TO 10 TO 15 KNOTS AFTER
MIDNIGHT. SHOWERS AND THUNDERSTORMS THROUGH MIDNIGHT...THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY BE SEVERE WITH DAMAGING WINDS AND LARGE HAIL.
WAVES 2 TO 4 FEET...SUBSIDING TO 1 TO 3 FEET BY MIDNIGHT.
.MONDAY...SOUTH WINDS 5 TO 10 KNOTS EARLY...BECOMING LIGHT AND
VARIABLE. A CHANCE OF SHOWERS AND THUNDERSTORMS BY LATE MORNING.
WAVES 2 FEET OR LESS.
.MONDAY NIGHT...NORTH WINDS 5 TO 10 KNOTS THROUGH MIDNIGHT...
BECOMING LIGHT AND VARIABLE OVERNIGHT. A CHANCE OF SHOWERS. WAVES
2 FEET OR LESS.
.TUESDAY...NORTHWEST WINDS 5 TO 10 KNOTS. A CHANCE OF SHOWERS.
WAVES 1 TO 3 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. WAVES 1 TO
3 FEET...BUILDING TO 2 TO 4 FEET LATE.
.WEDNESDAY...NORTHWEST WINDS 5 TO 10 KNOTS...VEERING TO THE
NORTHEAST. WAVES 2 TO 4 FEET...SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO
15 KNOTS LATE. A CHANCE OF SHOWERS. WAVES 1 TO 3 FEET.
.FRIDAY...NORTHEAST WINDS 10 TO 15 KNOTS. A CHANCE OF SHOWERS
LATE. WAVES 1 TO 3 FEET.


$$

LHZ461-030200-
MAFOR 0300 AMD/
HURON NORTH...SEVERE THUNDERSTORM WATCH IN EFFECT...12529 11620
11710 11610 11600 11700. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO 4
FEET OVERNIGHT WITH MAXIMUM WAVE HEIGHT AROUND 7 FEET TONIGHT.
WAVES 1 TO 3 FEET MONDAY. 210305 210204.

HURON SOUTH...SEVERE THUNDERSTORM WATCH IN EFFECT...11529 11519
11520 11610 11500 11600 11800. A CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY MONDAY AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING
TO 1 TO 3 FEET OVERNIGHT TONIGHT. WAVES 1 TO 3 FEET MONDAY.
210204 210103.

$$

DG

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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