Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 201934
GLFLH

OPEN LAKE FORECAST FOR LAKE HURON
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
334 PM EDT FRI MAR 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...A COLD FRONT WILL PROGRESS INTO THE NORTHERN GREAT LAKES
THIS EVENING AS LOW PRESSURE DEVELOPS OVER NORTHERN LAKE HURON AND
DEEPENS TO 29.70 INCHES AS IT TRACKS NORTH OF LAKE ONTARIO BY EARLY
SATURDAY MORNING. THIS WILL DRIVE THE FRONT SOUTHWARD THROUGH THE
GREAT LAKES ON SATURDAY. STRONG HIGH PRESSURE WILL THEN SLOWLY BUILD
INTO THE REGION FROM THE NORTHWEST SUNDAY INTO MONDAY.

LHZ361-210815-
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
334 PM EDT FRI MAR 20 2015

.TONIGHT...LIGHT AND VARIABLE WINDS...BECOMING SOUTH 5 TO
10 KNOTS AFTER MIDNIGHT...THEN BECOMING WEST 10 TO 15 KNOTS LATE.
A CHANCE OF SHOWERS EARLY THIS EVENING...THEN SHOWERS LIKELY BY
MIDNIGHT. RAIN AND SNOW SHOWERS AFTER MIDNIGHT. WAVES 2 FEET OR
LESS.
.SATURDAY...NORTHWEST WINDS 15 TO 20 KNOTS. GUSTS TO 30 KNOTS BY
MID AFTERNOON. SPRINKLES EARLY. WAVES 3 TO 5 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS...DIMINISHING TO
10 TO 15 KNOTS LATE. WAVES 3 TO 5 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO
20 KNOTS BY AFTERNOON. WAVES 1 TO 3 FEET...BUILDING TO 2 TO
4 FEET BY AFTERNOON.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO
5 TO 10 KNOTS LATE. WAVES 2 TO 4 FEET...SUBSIDING TO 1 TO 3 FEET
AFTER MIDNIGHT.
.MONDAY...LIGHT AND VARIABLE WINDS. WAVES 2 FEET OR LESS.
.TUESDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. A CHANCE OF RAIN AND
SNOW SHOWERS LATE. WAVES 2 FEET OR LESS.
.WEDNESDAY...EAST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS BY LATE MORNING...THEN BACKING TO THE NORTH LATE. A
CHANCE OF RAIN AND SNOW SHOWERS LATE...THEN SHOWERS LIKELY. A
CHANCE OF SHOWERS THROUGH MIDNIGHT. WAVES 2 FEET OR LESS.


$$

LHZ362-363-210815-
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-
334 PM EDT FRI MAR 20 2015

.TONIGHT...SOUTH WINDS 5 TO 10 KNOTS EARLY THIS EVENING...
BECOMING LIGHT AND VARIABLE...THEN BECOMING SOUTHWEST 5 TO
10 KNOTS AFTER MIDNIGHT...BECOMING SOUTH 10 TO 15 KNOTS. A CHANCE
OF SHOWERS EARLY THIS EVENING...THEN SHOWERS LIKELY BY MIDNIGHT.
SHOWERS AND A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES 2 TO
4 FEET.
.SATURDAY...WEST WINDS 15 TO 20 KNOTS...BECOMING NORTHWEST 20 TO
25 KNOTS WITH GUSTS TO 30 KNOTS BY LATE MORNING. SPRINKLES EARLY.
WAVES 4 TO 6 FEET...BUILDING TO 5 TO 7 FEET BY MID AFTERNOON.
WAVES OCCASIONALLY AROUND 10 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 20 TO 25 KNOTS...DIMINISHING TO
15 TO 20 KNOTS LATE. GUSTS TO 30 KNOTS. WAVES 6 TO 9 FEET. WAVES
OCCASIONALLY AROUND 12 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO
20 KNOTS BY AFTERNOON. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY
AROUND 8 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS...DIMINISHING TO
10 TO 15 KNOTS AFTER MIDNIGHT...THEN VEERING TO THE NORTHWEST
10 TO 15 KNOTS LATE. WAVES 3 TO 5 FEET...SUBSIDING TO 2 TO 4 FEET
LATE.
.MONDAY...NORTHEAST WINDS 5 TO 10 KNOTS IN THE MORNING...BECOMING
LIGHT AND VARIABLE. WAVES 2 FEET OR LESS.
.TUESDAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTHEAST 5 TO
10 KNOTS. A CHANCE OF RAIN AND SNOW SHOWERS LATE. WAVES 2 FEET OR
LESS.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 15 KNOTS...BECOMING EAST 5 TO
10 KNOTS LATE. A CHANCE OF RAIN AND SNOW SHOWERS LATE...THEN
SHOWERS LIKELY. A CHANCE OF SHOWERS THROUGH MIDNIGHT. WAVES 1 TO
3 FEET.

WAVE HEIGHTS ARE FOR ICE FREE AREAS.

$$

LHZ462>464-210815-
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-
334 PM EDT FRI MAR 20 2015

.TONIGHT...SOUTH WINDS 5 TO 10 KNOTS. A CHANCE OF SHOWERS THROUGH
MIDNIGHT...THEN SHOWERS AND A CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. WAVES 1 TO 3 FEET.
.SATURDAY...WEST WINDS 10 TO 15 KNOTS...BECOMING NORTHWEST 15 TO
20 KNOTS WITH GUSTS TO 30 KNOTS BY LATE MORNING...THEN BECOMING
NORTH 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS BY EARLY AFTERNOON...
DIMINISHING TO 15 TO 20 KNOTS LATE. SPRINKLES EARLY. WAVES 2 TO
4 FEET...BUILDING TO 5 TO 7 FEET BY LATE MORNING. WAVES
OCCASIONALLY AROUND 10 FEET.
.SATURDAY NIGHT...NORTH WINDS 10 TO 15 KNOTS...BECOMING NORTHWEST
15 TO 20 KNOTS AFTER MIDNIGHT. WAVES 6 TO 9 FEET. WAVES
OCCASIONALLY AROUND 12 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS LATE. WAVES 5 TO 7 FEET...SUBSIDING TO 1 TO 3 FEET.
WAVES OCCASIONALLY AROUND 10 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 5 TO 10 KNOTS THROUGH MIDNIGHT...
BECOMING LIGHT AND VARIABLE OVERNIGHT. WAVES 2 TO 4 FEET.
.MONDAY...NORTHEAST WINDS 5 TO 10 KNOTS...BECOMING LIGHT AND
VARIABLE. WAVES 2 FEET OR LESS.
.TUESDAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTHEAST 5 TO
10 KNOTS LATE. A CHANCE OF RAIN AND SNOW SHOWERS LATE. WAVES
2 FEET OR LESS.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 15 KNOTS...BECOMING SOUTHWEST
5 TO 10 KNOTS LATE...THEN VEERING TO THE WEST BY MIDNIGHT. A
CHANCE OF SNOW SHOWERS LATE. A CHANCE OF SHOWERS. WAVES 2 FEET OR
LESS.

WAVE HEIGHTS ARE FOR ICE FREE AREAS.

$$

LHZ461-210815-
MAFOR 2021/
HURON NORTH 11410 11510 11516 11507 11517 11720 12730. A
CHANCE OF RAIN SHOWERS LATE TONIGHT. SCATTERED RAIN SHOWERS AND A
CHANCE OF SNOW SHOWERS EARLY SATURDAY AFTERNOON. WAVES 1 TO 3
FEET TONIGHT. WAVES 1 TO 3 FEET BUILDING TO 3 TO 5 FEET WITH
MAXIMUM WAVE HEIGHT AROUND 6 FEET SATURDAY. 220103.

HURON SOUTH 12400 11500 12506 11620 12820. A CHANCE OF SNOW
SHOWERS AFTER MIDNIGHT TONIGHT. SCATTERED RAIN SHOWERS AND A
CHANCE OF SNOW SHOWERS EARLY SATURDAY AFTERNOON. WAVES 2 FEET OR
LESS TONIGHT. WAVES 1 TO 3 FEET BUILDING TO 4 TO 6 FEET WITH
MAXIMUM WAVE HEIGHT AROUND 8 FEET SATURDAY. 220002.

WAVE HEIGHTS ARE FOR ICE FREE AREAS.

$$

DG

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


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