Great Lakes Forecast
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FZUS63 KDTX 230238
GLFLH

OPEN LAKE FORECAST FOR LAKE HURON
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
938 PM EST MON DEC 22 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...29.40 INCHES...WILL MOVE FROM IOWA
TONIGHT TO WISCONSIN BY TUESDAY EVENING...WEAKENING TO 29.70 INCHES.
THIS LOW WILL CONTINUE TO WEAKEN AS IT TRACKS INTO THE NORTHERN
GREAT LAKES TUESDAY NIGHT. A SECONDARY LOW PRESSURE SYSTEM IS
FORECAST TO DEVELOP OVER THE GULF COAST ON TUESDAY AND LIFT ALMOST
DUE NORTH TO LAKE HURON BY WEDNESDAY NIGHT. THIS SYSTEM IS FORECAST
TO RAPIDLY INTENSIFY AS IT ADVANCES INTO THE GREAT LAKES...THEN
CONTINUE TO STRENGTHEN AS IT LIFTS INTO CANADA BY THURSDAY MORNING.

LHZ361-230915-
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
938 PM EST MON DEC 22 2014

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

.REST OF TONIGHT...EAST WINDS 15 TO 20 KNOTS. A CHANCE OF SHOWERS
AFTER MIDNIGHT. SHOWERS LIKELY LATE. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY AROUND 8 FEET.
.TUESDAY...EAST WINDS 15 TO 20 KNOTS...INCREASING TO 20 TO
25 KNOTS WITH GUSTS TO 30 KNOTS BY LATE MORNING...THEN
DIMINISHING TO 15 TO 20 KNOTS LATE. SHOWERS THROUGH MID
AFTERNOON...THEN A CHANCE OF SHOWERS LATE. WAVES 5 TO 7 FEET.
WAVES OCCASIONALLY AROUND 10 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS...BECOMING SOUTH
5 TO 10 KNOTS BY MIDNIGHT...THEN BECOMING LIGHT AND VARIABLE
LATE. A CHANCE OF SHOWERS. WAVES 3 TO 5 FEET...SUBSIDING TO 1 TO
3 FEET LATE.
.WEDNESDAY...LIGHT AND VARIABLE WINDS...BECOMING EAST 5 TO
10 KNOTS. RAIN. WAVES 1 TO 3 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 20 KNOTS...BACKING TO
THE WEST WITH GUSTS TO 30 KNOTS LATE. SHOWERS EARLY IN THE
EVENING...THEN SNOW SHOWERS LATE IN THE EVENING. SNOW SHOWERS
LIKELY AFTER MIDNIGHT. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY
AROUND 8 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 10 TO 15 KNOTS IN THE EVENING...
BECOMING SOUTHWEST 5 TO 10 KNOTS AFTER MIDNIGHT. WAVES 8 TO
12 FEET...SUBSIDING TO 1 TO 3 FEET. WAVES OCCASIONALLY AROUND
15 FEET.
.FRIDAY...SOUTH WINDS 5 TO 10 KNOTS. A CHANCE OF SNOW SHOWERS
LATE. WAVES 1 TO 3 FEET.
.SATURDAY...WEST WINDS 10 TO 15 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES 2 TO 4 FEET...SUBSIDING TO 1 TO 3 FEET BY LATE EVENING.


$$

LHZ362-230915-
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
938 PM EST MON DEC 22 2014

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

.REST OF TONIGHT...EAST WINDS 15 TO 20 KNOTS. A CHANCE OF SHOWERS
AFTER MIDNIGHT. SHOWERS LIKELY LATE. WAVES 3 TO 5 FEET.
.TUESDAY...EAST WINDS 20 TO 25 KNOTS...BECOMING SOUTHEAST 15 TO
20 KNOTS BY AFTERNOON. SHOWERS THROUGH MID AFTERNOON...THEN A
CHANCE OF SHOWERS LATE. WAVES 6 TO 9 FEET. WAVES OCCASIONALLY
AROUND 12 FEET.
.TUESDAY NIGHT...SOUTH WINDS 10 TO 15 KNOTS...BECOMING SOUTHWEST
5 TO 10 KNOTS BY MIDNIGHT...THEN BECOMING LIGHT AND VARIABLE
LATE. A CHANCE OF SHOWERS. WAVES 3 TO 5 FEET...SUBSIDING TO 1 TO
3 FEET LATE.
.WEDNESDAY...LIGHT AND VARIABLE WINDS...BECOMING NORTH 5 TO
10 KNOTS BY LATE MORNING...THEN BECOMING NORTHEAST 10 TO 15 KNOTS
BY MID AFTERNOON. RAIN. WAVES 1 TO 3 FEET...BUILDING TO 2 TO
4 FEET BY MID AFTERNOON.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 20 KNOTS...BECOMING
SOUTH 20 TO 25 KNOTS WITH GUSTS TO 35 KNOT GALES LATE. SHOWERS
EARLY IN THE EVENING...THEN SNOW SHOWERS LATE IN THE EVENING.
SNOW SHOWERS LIKELY AFTER MIDNIGHT. WAVES 5 TO 7 FEET...BUILDING
TO 8 TO 12 FEET LATE. WAVES OCCASIONALLY AROUND 15 FEET.
.THURSDAY...WEST GALES TO 35 KNOTS WITH GUSTS TO 45 KNOT GALES...
BECOMING SOUTHWEST 10 TO 15 KNOTS. WAVES 10 TO 14 FEET...
SUBSIDING TO 4 TO 6 FEET. WAVES OCCASIONALLY AROUND 18 FEET. A
GALE WARNING MAY BE NEEDED.
.FRIDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...BECOMING SOUTH 15 TO
20 KNOTS BY MIDNIGHT. A CHANCE OF. A CHANCE OF SNOW SHOWERS.
WAVES 3 TO 5 FEET.
.SATURDAY...WEST WINDS 15 TO 20 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES 3 TO 5 FEET.


$$

LHZ363-462>464-230915-
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
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-
938 PM EST MON DEC 22 2014

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

.REST OF TONIGHT...SOUTHEAST WINDS 15 TO 20 KNOTS. A CHANCE OF
SHOWERS AFTER MIDNIGHT. SHOWERS LIKELY LATE. WAVES 3 TO 5 FEET.
.TUESDAY...SOUTHEAST WINDS 15 TO 20 KNOTS. SHOWERS IN THE
MORNING...THEN A CHANCE OF SHOWERS BY AFTERNOON. WAVES 4 TO
6 FEET. WAVES OCCASIONALLY AROUND 8 FEET.
.TUESDAY NIGHT...SOUTH WINDS 10 TO 15 KNOTS...BECOMING SOUTHEAST
5 TO 10 KNOTS BY MIDNIGHT. A CHANCE OF SHOWERS. WAVES 3 TO
5 FEET...SUBSIDING TO 1 TO 3 FEET LATE.
.WEDNESDAY...NORTH WINDS 5 TO 10 KNOTS...BECOMING NORTHEAST 10 TO
15 KNOTS. RAIN. WAVES 1 TO 3 FEET...BUILDING TO 2 TO 4 FEET BY
MID AFTERNOON.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 15 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 LIKELY EARLY IN THE EVENING...THEN SNOW SHOWERS LIKELY BY
LATE EVENING. WAVES 3 TO 5 FEET...BUILDING TO 8 TO 12 FEET BY
MIDNIGHT. WAVES OCCASIONALLY AROUND 15 FEET.
.THURSDAY...WEST WINDS TO 30 KNOTS WITH GUSTS TO 40 KNOT GALES...
BECOMING SOUTHWEST 10 TO 15 KNOTS. WAVES 8 TO 12 FEET...SUBSIDING
TO 3 TO 5 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.
WAVES 3 TO 5 FEET.
.SATURDAY...WEST WINDS 15 TO 20 KNOTS...DIMINISHING TO 10 TO
15 KNOTS BY LATE EVENING. A CHANCE OF SNOW SHOWERS. WAVES 3 TO
5 FEET.


$$

LHZ461-230915-
MAFOR 2304/
HURON NORTH 12320 13236 11336 12420. A CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS TUESDAY EVENING. WAVES 3
TO 5 FEET WITH MAXIMUM WAVE HEIGHT AROUND 8 FEET OVERNIGHT. WAVES
4 TO 6 FEET WITH MAXIMUM WAVE HEIGHT AROUND 8 FEET TUESDAY. WAVES
3 TO 5 FEET WITH MAXIMUM WAVE HEIGHT AROUND 6 FEET TUESDAY
EVENING. 210204 210305.

HURON SOUTH 12320 13326 12420 11410. A CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. A CHANCE OF SHOWERS TUESDAY EVENING. WAVES 3 TO 5
FEET WITH MAXIMUM WAVE HEIGHT AROUND 6 FEET OVERNIGHT AND
TUESDAY. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET OVERNIGHT
WITH MAXIMUM WAVE HEIGHT AROUND 7 FEET TUESDAY EVENING. 220204.

$$

RBP

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


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