Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 201344
GLFLH

OPEN LAKE FORECAST FOR LAKE HURON
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
944 AM EDT WED MAY 20 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...SURFACE HIGH PRESSURE WILL GRADUALLY BUILD INTO THE
WESTERN AND CENTRAL GREAT LAKES TODAY...STRENGTHENING TO 30.20
INCHES OVER LAKE MICHIGAN. A WEAK TROUGH OF LOW PRESSURE...AVERAGING
29.90 INCHES...WILL THEN DROP THROUGH THE AREA LATE THURSDAY INTO
THURSDAY NIGHT...PUSHING A COLD FRONT THROUGH THE REGION.

LHZ361-202015-
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
944 AM EDT WED MAY 20 2015

.REST OF TODAY...WEST WINDS 10 TO 15 KNOTS. WAVES 1 TO 3 FEET...
BUILDING TO 2 TO 4 FEET LATE.
.TONIGHT...WEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 10 KNOTS...BECOMING WEST 10 TO
15 KNOTS IN THE AFTERNOON...THEN INCREASING TO 15 TO 20 KNOTS
LATE. WAVES 1 TO 3 FEET...BUILDING TO 3 TO 5 FEET LATE.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS...DIMINISHING TO
10 TO 15 KNOTS AFTER MIDNIGHT...THEN BECOMING NORTHWEST 10 TO
15 KNOTS LATE. WAVES 3 TO 5 FEET...SUBSIDING TO 1 TO 3 FEET LATE.
.FRIDAY...NORTH WINDS 5 TO 10 KNOTS...BECOMING WEST 10 TO
15 KNOTS IN THE AFTERNOON...THEN BECOMING NORTHWEST 5 TO 10 KNOTS
IN THE EVENING...BACKING TO THE WEST AFTER MIDNIGHT. WAVES 2 FEET
OR LESS.
.SATURDAY...SOUTHWEST WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO
15 KNOTS IN THE AFTERNOON...THEN BECOMING WEST 5 TO 10 KNOTS
AFTER MIDNIGHT. WAVES 2 FEET OR LESS.
.SUNDAY...SOUTHWEST WINDS 5 TO 10 KNOTS...BACKING TO THE
SOUTHEAST BY MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH MIDNIGHT. WAVES 2 FEET OR LESS.


$$

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-
944 AM EDT WED MAY 20 2015

.REST OF TODAY...WEST WINDS 5 TO 10 KNOTS...BACKING TO THE SOUTH
BY MID AFTERNOON. WAVES 2 TO 4 FEET...SUBSIDING TO 1 TO 3 FEET BY
MID AFTERNOON.
.TONIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS. WAVES 1 TO 3 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 10 KNOTS...BECOMING SOUTH 10 TO
15 KNOTS BY AFTERNOON. WAVES 1 TO 3 FEET...BUILDING TO 3 TO
5 FEET LATE.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS...DIMINISHING TO
10 TO 15 KNOTS AFTER MIDNIGHT. WAVES 3 TO 5 FEET.
.FRIDAY...NORTH WINDS 10 TO 15 KNOTS...BECOMING NORTHWEST 5 TO
10 KNOTS IN THE EVENING...THEN BACKING TO THE SOUTHWEST AFTER
MIDNIGHT. WAVES 1 TO 3 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 10 KNOTS...BECOMING SOUTH 10 TO
15 KNOTS IN THE AFTERNOON...THEN BECOMING SOUTHWEST 5 TO 10 KNOTS
LATE. WAVES 2 FEET OR LESS.
.SUNDAY...SOUTH WINDS 5 TO 10 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH MIDNIGHT. WAVES 2 FEET OR LESS.


$$

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-
944 AM EDT WED MAY 20 2015

.REST OF TODAY...NORTHWEST WINDS 5 TO 10 KNOTS BY LATE MORNING...
BECOMING LIGHT AND VARIABLE. WAVES 3 TO 5 FEET...SUBSIDING TO
1 TO 3 FEET BY MID AFTERNOON.
.TONIGHT...SOUTH WINDS 5 TO 10 KNOTS...VEERING TO THE WEST LATE.
WAVES 2 FEET OR LESS.
.THURSDAY...SOUTH WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR LESS.
.THURSDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS...BECOMING
NORTHWEST 10 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS.
WAVES 1 TO 3 FEET...BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
.FRIDAY...NORTH WINDS 10 TO 15 KNOTS THROUGH LATE AFTERNOON...
BECOMING LIGHT AND VARIABLE...THEN BECOMING SOUTHWEST 5 TO
10 KNOTS AFTER MIDNIGHT. WAVES 2 TO 4 FEET...SUBSIDING TO 1 TO
3 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR LESS.
.SUNDAY...SOUTH WINDS 5 TO 10 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH MIDNIGHT. WAVES 2 FEET OR LESS.


$$

LHZ461-202015-
MAFOR 2015/
HURON NORTH 11610 13510 11610 11600 12500. WAVES 1 TO 3 FEET.
220103.

HURON SOUTH 12700 12400 12500 11600 11500. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET THIS AFTERNOON. WAVES 2 FEET OR LESS
TONIGHT AND THURSDAY MORNING. 210204 210103.

$$

SS

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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