Great Lakes Forecast
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FZUS63 KDTX 230842
GLFLH

OPEN LAKE FORECAST FOR LAKE HURON
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
342 AM EST TUE DEC 23 2014

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...LOW PRESSURE...29.50 INCHES...OVER IOWA EARLY THIS
MORNING WILL MOVE TO WISCONSIN BY THIS EVENING...WEAKENING IN THE
PROCESS. A SECONDARY LOW PRESSURE SYSTEM IS FORECAST TO DEVELOP OVER
THE GULF COAST AND LIFT ALMOST DUE NORTH TO LAKE HURON BY WEDNESDAY
NIGHT. THIS SYSTEM IS FORECAST TO RAPIDLY INTENSIFY AS IT TRACKS
THROUGH THE GREAT LAKES REGION...LOWERING TO 29.90 INCHES AS IT
MOVES INTO NORTHEASTERN ONTARIO THURSDAY MORNING.

LHZ361-362-232115-
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-
342 AM EST TUE DEC 23 2014

...GALE WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY AFTERNOON...

.TODAY...EAST WINDS 20 TO 25 KNOTS...DIMINISHING TO 15 TO
20 KNOTS LATE. SHOWERS THROUGH MID AFTERNOON...THEN SHOWERS
LIKELY LATE. WAVES 6 TO 9 FEET. WAVES OCCASIONALLY AROUND
12 FEET.
.TONIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS...BECOMING LIGHT AND
VARIABLE OVERNIGHT. A CHANCE OF SHOWERS EARLY IN THE EVENING. A
CHANCE OF SHOWERS LATE. WAVES 3 TO 5 FEET...SUBSIDING TO 1 TO
3 FEET LATE.
.WEDNESDAY...NORTHEAST WINDS 5 TO 10 KNOTS...BECOMING EAST 15 TO
20 KNOTS. RAIN. WAVES 1 TO 3 FEET...BUILDING TO 4 TO 6 FEET.
WAVES OCCASIONALLY AROUND 8 FEET.
.WEDNESDAY NIGHT...EAST WINDS 15 TO 20 KNOTS...BECOMING SOUTH
20 TO 25 KNOTS WITH GUSTS TO 35 KNOT GALES BY MIDNIGHT...THEN
BECOMING SOUTHWEST TO 30 KNOTS WITH GUSTS TO 40 KNOT GALES LATE.
SHOWERS MAINLY BEFORE MIDNIGHT. SNOW SHOWERS BY LATE EVENING.
WAVES 6 TO 9 FEET...BUILDING TO 10 TO 14 FEET BY MIDNIGHT. WAVES
OCCASIONALLY AROUND 18 FEET.
.THURSDAY...WEST WINDS TO 30 KNOTS WITH GUSTS TO 40 KNOT GALES...
DIMINISHING TO 20 TO 25 KNOTS WITH GUSTS TO 35 KNOT GALES IN THE
AFTERNOON...THEN DIMINISHING TO 15 TO 20 KNOTS IN THE EVENING...
BECOMING SOUTHWEST 10 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF
SNOW SHOWERS IN THE MORNING. WAVES 10 TO 14 FEET...SUBSIDING TO
4 TO 6 FEET. WAVES OCCASIONALLY AROUND 18 FEET.
.FRIDAY...SOUTH WINDS 10 TO 15 KNOTS. A CHANCE OF SNOW SHOWERS
LATE. WAVES 2 TO 4 FEET.
.SATURDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...BECOMING WEST 15 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FEET.


$$

LHZ363-232115-
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
342 AM EST TUE DEC 23 2014

...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY
AFTERNOON...

.TODAY...SOUTHEAST WINDS 15 TO 20 KNOTS. SHOWERS IN THE MORNING...
THEN SHOWERS LIKELY IN THE AFTERNOON. A CHANCE OF SHOWERS LATE.
WAVES 4 TO 6 FEET. WAVES OCCASIONALLY AROUND 8 FEET.
.TONIGHT...SOUTH WINDS 10 TO 15 KNOTS...BECOMING SOUTHWEST 5 TO
10 KNOTS BY LATE EVENING...THEN VEERING TO THE WEST LATE. A
CHANCE OF SHOWERS. WAVES 3 TO 5 FEET...SUBSIDING TO 1 TO 3 FEET
AFTER MIDNIGHT.
.WEDNESDAY...NORTHEAST WINDS 10 TO 15 KNOTS...BECOMING EAST 20 TO
25 KNOTS. RAIN. A CHANCE OF THUNDERSTORMS. WAVES 1 TO 3 FEET...
BUILDING TO 4 TO 6 FEET. WAVES OCCASIONALLY AROUND 8 FEET.
.WEDNESDAY NIGHT...SOUTHEAST WINDS 20 TO 25 KNOTS WITH GUSTS TO
35 KNOT GALES...BECOMING SOUTH GALES TO 35 KNOTS WITH GUSTS TO
45 KNOT GALES BY MIDNIGHT...THEN VEERING TO THE SOUTHWEST AT
35 KNOTS WITH GUSTS TO 45 KNOT GALES LATE. SHOWERS. SNOW SHOWERS
BY LATE EVENING. WAVES 10 TO 14 FEET...BUILDING TO 12 TO 16 FEET
LATE. WAVES OCCASIONALLY AROUND 20 FEET. A GALE WARNING MAY BE
NEEDED.
.THURSDAY...WEST WINDS TO 30 KNOTS WITH GUSTS TO 40 KNOT GALES...
BECOMING SOUTHWEST 15 TO 20 KNOTS WITH GUSTS TO 30 KNOTS. A
CHANCE OF SNOW SHOWERS IN THE MORNING. WAVES 8 TO 12 FEET...
SUBSIDING TO 4 TO 6 FEET AFTER MIDNIGHT. WAVES OCCASIONALLY
AROUND 15 FEET.
.FRIDAY...SOUTH WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO
20 KNOTS BY MIDNIGHT. A CHANCE OF. A CHANCE OF SNOW SHOWERS AND
SHOWERS. WAVES 2 TO 4 FEET.
.SATURDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...BECOMING WEST 15 TO
20 KNOTS...THEN DIMINISHING TO 10 TO 15 KNOTS BY LATE EVENING. A
CHANCE OF SNOW SHOWERS AND SHOWERS. WAVES 3 TO 5 FEET.


$$

LHZ462>464-232115-
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-
342 AM EST TUE DEC 23 2014

...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY
AFTERNOON...

.TODAY...SOUTHEAST WINDS 15 TO 20 KNOTS. SHOWERS IN THE MORNING...
THEN SHOWERS LIKELY IN THE AFTERNOON. A CHANCE OF SHOWERS LATE.
WAVES 3 TO 5 FEET.
.TONIGHT...SOUTH WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS LATE IN THE EVENING...THEN BECOMING LIGHT AND VARIABLE
AFTER MIDNIGHT. A CHANCE OF SHOWERS MAINLY BEFORE MIDNIGHT...THEN
SHOWERS LIKELY LATE. WAVES 2 TO 4 FEET...SUBSIDING TO 2 FEET OR
LESS AFTER MIDNIGHT.
.WEDNESDAY...NORTHEAST WINDS 10 TO 15 KNOTS...BECOMING EAST 15 TO
20 KNOTS BY LATE MORNING...THEN INCREASING TO 20 TO 25 KNOTS WITH
GUSTS TO 30 KNOTS BY MID AFTERNOON. RAIN. A CHANCE OF
THUNDERSTORMS. WAVES 1 TO 3 FEET...BUILDING TO 4 TO 6 FEET. WAVES
OCCASIONALLY AROUND 8 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS TO 30 KNOTS WITH GUSTS TO 35 KNOT
GALES...BECOMING SOUTHWEST GALES TO 35 KNOTS WITH GUSTS TO
45 KNOT GALES BY MIDNIGHT. SHOWERS MAINLY BEFORE MIDNIGHT. SNOW
SHOWERS BY LATE EVENING. WAVES 10 TO 14 FEET. WAVES OCCASIONALLY
AROUND 18 FEET. A GALE WARNING MAY BE NEEDED.
.THURSDAY...WEST WINDS TO 30 KNOTS WITH GUSTS TO 35 KNOT GALES...
BECOMING SOUTHWEST 15 TO 20 KNOTS. A CHANCE OF SNOW SHOWERS IN
THE MORNING. WAVES 6 TO 9 FEET...SUBSIDING TO 3 TO 5 FEET AFTER
MIDNIGHT. WAVES OCCASIONALLY AROUND 12 FEET.
.FRIDAY...SOUTH WINDS 10 TO 15 KNOTS. A CHANCE OF RAIN AND SNOW
SHOWERS LATE. WAVES 2 TO 4 FEET.
.SATURDAY...SOUTHWEST WINDS 15 TO 20 KNOTS...BECOMING WEST 10 TO
15 KNOTS LATE. A CHANCE OF RAIN AND SNOW SHOWERS. WAVES 2 TO
4 FEET.


$$

LHZ461-232115-
MAFOR 2310/
HURON NORTH 13236 11336 12420 11500 11600. A CHANCE OF RAIN
SHOWERS LATE TODAY. A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT
TONIGHT. WAVES 4 TO 6 FEET WITH MAXIMUM WAVE HEIGHT AROUND 8 FEET
TODAY. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET OVERNIGHT WITH
MAXIMUM WAVE HEIGHT AROUND 7 FEET TONIGHT. 210406 210507.

HURON SOUTH 13326 11426 11420 11410 12400. A CHANCE OF RAIN
SHOWERS LATE TODAY. A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT
TONIGHT. WAVES 3 TO 5 FEET WITH MAXIMUM WAVE HEIGHT AROUND 6 FEET
TODAY. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET OVERNIGHT WITH
MAXIMUM WAVE HEIGHT AROUND 7 FEET TONIGHT. 210305 210204.

$$

SF

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES (ALL LOWER CASE)


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