Great Lakes Forecast
Issued by NWS

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275
FZUS63 KDTX 230246
GLFLH

OPEN LAKE FORECAST FOR LAKE HURON
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
943 PM EST WED FEB 22 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OFF 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...WILL CROSS THE STRAITS
REGION TONIGHT. AS THE LOW LIFTS INTO QUEBEC ON THURSDAY IT WILL
DRIVE A WEAK COLD FRONT INTO THE SOUTHERN GREAT LAKES. THIS FRONT
WILL THEN LIFT NORTH AS A WARM FRONT ON FRIDAY AS DEEPENING LOW
PRESSURE MOVES FROM IOWA TO NORTHERN MICHIGAN. THIS LOW WILL EXIT TO
THE NORTHEAST FRIDAY NIGHT DRIVING A STRONG COLD FRONT ACROSS THE
SOUTHERN GREAT LAKES.

LHZ361-230900-
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
943 PM EST WED FEB 22 2017

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM EST THURSDAY...

.REST OF TONIGHT...LIGHT AND VARIABLE WINDS BECOMING SOUTHEAST
5 TO 10 KNOTS AFTER MIDNIGHT, THEN BECOMING WEST 10 TO 15 KNOTS
EARLY IN THE MORNING. WIDESPREAD DENSE FOG. A CHANCE OF RAIN.
WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET EARLY IN THE MORNING.
.THURSDAY...NORTHWEST WINDS 10 TO 15 KNOTS DECREASING TO 5 TO
10 KNOTS LATE IN THE AFTERNOON. WIDESPREAD DENSE FOG EARLY IN THE
MORNING. A CHANCE OF RAIN EARLY IN THE MORNING. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET IN THE AFTERNOON.
.THURSDAY NIGHT...NORTH WINDS 5 TO 10 KNOTS BECOMING NORTHEAST
10 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. WAVES 1 TO 3 FEET.
.FRIDAY...EAST WINDS 15 TO 20 KNOTS INCREASING TO 20 TO 25 KNOTS
IN THE LATE MORNING AND AFTERNOON. GUSTS TO 35 KNOT GALES. SNOW
SHOWERS. SHOWERS IN THE AFTERNOON. WAVES 4 TO 6 FEET BUILDING TO
8 TO 12 FEET IN THE LATE MORNING AND AFTERNOON. WAVES
OCCASIONALLY AROUND 15 FEET.
.FRIDAY NIGHT...EAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO
30 KNOTS DECREASING TO 10 TO 15 KNOTS AFTER MIDNIGHT. SHOWERS.
WAVES 6 TO 9 FEET SUBSIDING TO 3 TO 5 FEET AFTER MIDNIGHT. WAVES
OCCASIONALLY AROUND 12 FEET.
.SATURDAY...NORTHWEST WINDS 5 TO 10 KNOTS BECOMING WEST 15 TO
20 KNOTS WITH GUSTS UP TO 30 KNOTS. SHOWERS. SNOW SHOWERS LIKELY.
WAVES 2 TO 4 FEET BUILDING TO 5 TO 7 FEET LATE IN THE AFTERNOON.
WAVES OCCASIONALLY AROUND 10 FEET.
.SUNDAY...WEST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 30 KNOTS
DECREASING TO 10 TO 15 KNOTS UNTIL EARLY MORNING. A CHANCE OF
SNOW IN THE AFTERNOON AND EVENING. WAVES 3 TO 5 FEET SUBSIDING TO
2 TO 4 FEET IN THE LATE EVENING AND EARLY MORNING.
.MONDAY...WEST WINDS 5 TO 10 KNOTS BACKING TO THE SOUTH IN THE
LATE EVENING AND EARLY MORNING. A CHANCE OF SNOW AFTER MIDNIGHT.
WAVES 2 FEET OR LESS.


$$

LHZ362-363-230900-
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-
943 PM EST WED FEB 22 2017

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM EST THURSDAY...

.REST OF TONIGHT...SOUTH WINDS 15 TO 20 KNOTS. WIDESPREAD DENSE
FOG. A CHANCE OF RAIN. WAVES 3 TO 5 FEET.
.THURSDAY...SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING NORTHWEST
15 TO 20 KNOTS LATE IN THE MORNING, THEN BECOMING NORTH 10 TO
15 KNOTS IN THE AFTERNOON. WIDESPREAD DENSE FOG EARLY IN THE
MORNING. A CHANCE OF RAIN EARLY IN THE MORNING. WAVES 3 TO
5 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 15 KNOTS BECOMING NORTHEAST
15 TO 20 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY, A CHANCE OF SNOW
SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET IN THE LATE EVENING AND EARLY MORNING,
THEN BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
.FRIDAY...EAST WINDS 20 TO 25 KNOTS WITH GUSTS UP TO 35 KNOTS.
SNOW SHOWERS AND A CHANCE OF THUNDERSTORMS IN THE MORNING.
SHOWERS. THUNDERSTORMS LIKELY IN THE AFTERNOON. WAVES 6 TO
9 FEET. WAVES OCCASIONALLY AROUND 12 FEET.
.FRIDAY NIGHT...EAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO
30 KNOTS DECREASING TO 10 TO 15 KNOTS AFTER MIDNIGHT. SHOWERS
WITH THUNDERSTORMS LIKELY. WAVES 6 TO 9 FEET SUBSIDING TO 3 TO
5 FEET AFTER MIDNIGHT. WAVES OCCASIONALLY AROUND 12 FEET.
.SATURDAY...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO
20 KNOTS WITH GUSTS UP TO 30 KNOTS LATE IN THE MORNING, THEN
INCREASING TO 20 TO 25 KNOTS WITH GUSTS UP TO 35 KNOTS LATE IN
THE AFTERNOON VEERING TO THE WEST WITH GUSTS UP TO 35 KNOTS LATE
IN THE EVENING. SHOWERS WITH THUNDERSTORMS LIKELY EARLY IN THE
MORNING, THEN A CHANCE OF SHOWERS EARLY IN THE MORNING. A CHANCE
OF SNOW SHOWERS. WAVES 3 TO 5 FEET BUILDING TO 6 TO 9 FEET LATE
IN THE AFTERNOON. WAVES OCCASIONALLY AROUND 12 FEET.
.SUNDAY...WEST WINDS 20 TO 25 KNOTS WITH GUSTS UP TO 30 KNOTS
BECOMING SOUTHWEST 15 TO 20 KNOTS WITH GUSTS UP TO 30 KNOTS. A
CHANCE OF SNOW IN THE AFTERNOON AND EVENING. WAVES 5 TO 7 FEET.
WAVES OCCASIONALLY AROUND 10 FEET.
.MONDAY...WEST WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS. A CHANCE OF SNOW AND RAIN AFTER MIDNIGHT. WAVES 3 TO
5 FEET SUBSIDING TO 1 TO 3 FEET.


$$

LHZ462>464-230900-
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-
943 PM EST WED FEB 22 2017

.REST OF TONIGHT...SOUTH WINDS 15 TO 20 KNOTS. AREAS OF FOG AFTER
MIDNIGHT. A CHANCE OF RAIN AFTER MIDNIGHT. WAVES 3 TO 5 FEET.
.THURSDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. AREAS OF FOG EARLY IN
THE MORNING. A CHANCE OF RAIN EARLY IN THE MORNING. WAVES 2 TO
4 FEET.
.THURSDAY NIGHT...NORTHEAST WINDS 10 TO 15 KNOTS. SHOWERS LIKELY
AND A CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET IN THE LATE EVENING AND EARLY MORNING,
THEN BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
.FRIDAY...EAST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS
EARLY IN THE AFTERNOON. A CHANCE OF THUNDERSTORMS IN THE MORNING.
SHOWERS. THUNDERSTORMS LIKELY IN THE AFTERNOON. WAVES 4 TO
6 FEET. WAVES OCCASIONALLY AROUND 8 FEET.
.FRIDAY NIGHT...SOUTHEAST WINDS 15 TO 20 KNOTS BECOMING SOUTH
10 TO 15 KNOTS AFTER MIDNIGHT. SHOWERS WITH THUNDERSTORMS LIKELY.
WAVES 3 TO 5 FEET.
.SATURDAY...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO
20 KNOTS WITH GUSTS UP TO 30 KNOTS LATE IN THE MORNING, THEN
INCREASING TO 20 TO 25 KNOTS WITH GUSTS UP TO 30 KNOTS LATE IN
THE AFTERNOON VEERING TO THE WEST WITH GUSTS UP TO 30 KNOTS LATE
IN THE EVENING. SHOWERS AND THUNDERSTORMS LIKELY EARLY IN THE
MORNING, THEN A CHANCE OF SHOWERS EARLY IN THE MORNING. A CHANCE
OF SNOW SHOWERS. WAVES 2 TO 4 FEET BUILDING TO 6 TO 9 FEET. WAVES
OCCASIONALLY AROUND 12 FEET.
.SUNDAY...SOUTHWEST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO
30 KNOTS. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY AROUND 8 FEET.
.MONDAY...WEST WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS. A CHANCE OF SNOW AFTER MIDNIGHT. WAVES 3 TO 5 FEET
SUBSIDING TO 1 TO 3 FEET.


$$

LHZ461-230900-
MAFOR 2304/
HURON NORTH 11424 11514 11624 12720 11810 12800. A CHANCE OF
RAIN OVERNIGHT AND THURSDAY MORNING. WAVES 2 TO 4 FEET OVERNIGHT
AND THURSDAY. WAVES 2 FEET OR LESS THURSDAY EVENING. 220204.

HURON SOUTH 12424 11514 12710 13810. A CHANCE OF RAIN
OVERNIGHT AND THURSDAY MORNING. WAVES 3 TO 5 FEET OVERNIGHT.
WAVES 2 TO 4 FEET THURSDAY AND THURSDAY EVENING. 210204 210305.

$$

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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