Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 250858
GLFLH

OPEN LAKE FORECAST FOR LAKE HURON
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
358 AM EST SAT FEB 25 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 OVER NORTHERN LAKE HURON DURING THE EARLY
MORNING WILL DEEPEN TO 29.20 INCHES WHILE MOVING INTO CANADA DURING
THE DAY. THIS WILL PRODUCE WESTERLY GALES THROUGH THIS EVENING
BEFORE DIMINISHING OVERNIGHT. SOUTHWEST WIND WILL THEN INCREASE
AGAIN AS THE NEXT LOW ARRIVES OVER LAKE SUPERIOR SUNDAY. ANOTHER
PERIOD OF SOUTHWEST GALES IS LIKELY AS THIS SYSTEM MOVES THROUGH THE
REGION. MARINE CONDITIONS WILL THEN IMPROVE CONSIDERABLY TO START
NEXT WEEK.

LHZ361-252115-
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
358 AM EST SAT FEB 25 2017

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.TODAY...NORTHWEST WINDS 10 TO 15 KNOTS BECOMING WEST TO 30 KNOTS
WITH GUSTS UP TO 40 KNOTS. PATCHY FREEZING DRIZZLE DURING THE
MORNING THEN SNOW SHOWERS LIKELY. FREEZING SPRAY LATE IN THE
AFTERNOON. WAVES 2 TO 4 FEET BUILDING TO 6 TO 9 FEET IN THE
AFTERNOON. WAVES OCCASIONALLY AROUND 12 FEET.
.TONIGHT...WEST WINDS TO 30 KNOTS WITH GUSTS UP TO 40 KNOTS
DECREASING TO 20 TO 25 KNOTS WITH GUSTS UP TO 35 KNOTS IN THE
LATE EVENING AND OVERNIGHT. A CHANCE OF SNOW SHOWERS IN THE
EVENING. FREEZING SPRAY UNTIL EARLY MORNING. WAVES 6 TO 9 FEET.
WAVES OCCASIONALLY AROUND 12 FEET.
.SUNDAY...SOUTHWEST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO
30 KNOTS. SNOW LIKELY AND A CHANCE OF RAIN IN THE AFTERNOON.
WAVES 4 TO 6 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO
30 KNOTS BECOMING WEST 10 TO 15 KNOTS WITH GUSTS UP TO 30 KNOTS
IN THE LATE EVENING AND EARLY MORNING, THEN DECREASING TO 5 TO
10 KNOTS AFTER MIDNIGHT. SNOW LIKELY EARLY IN THE EVENING. A
CHANCE OF RAIN IN THE EVENING. A CHANCE OF SNOW IN THE LATE
EVENING AND EARLY MORNING. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY
AROUND 8 FEET.
.MONDAY...WEST WINDS 5 TO 10 KNOTS BACKING TO THE SOUTH. WAVES
2 FEET OR LESS.
.TUESDAY...SOUTH WINDS 5 TO 10 KNOTS BACKING TO THE EAST UNTIL
EARLY MORNING. A CHANCE OF RAIN IN THE AFTERNOON. RAIN AND SNOW
IN THE EVENING, THEN A CHANCE OF RAIN AND SNOW AFTER MIDNIGHT.
WAVES 2 FEET OR LESS.
.WEDNESDAY...NORTHEAST WINDS 5 TO 10 KNOTS BECOMING NORTH 15 TO
20 KNOTS. A CHANCE OF RAIN EARLY IN THE MORNING. A CHANCE OF SNOW
UNTIL AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.


$$

LHZ362-252115-
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
358 AM EST SAT FEB 25 2017

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...
...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.TODAY...SOUTHWEST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 30 KNOTS
BECOMING WEST 20 TO 25 KNOTS WITH GUSTS UP TO 35 KNOTS EARLY IN
THE AFTERNOON, THEN INCREASING TO 30 KNOTS WITH GUSTS UP TO
40 KNOTS LATE IN THE AFTERNOON. A CHANCE OF SHOWERS IN THE
MORNING. A CHANCE OF SNOW SHOWERS. WAVES 5 TO 7 FEET BUILDING TO
8 TO 12 FEET LATE IN THE AFTERNOON. WAVES OCCASIONALLY AROUND
15 FEET.
.TONIGHT...WEST WINDS TO 30 KNOTS WITH GUSTS UP TO 40 KNOTS
DECREASING TO 20 TO 25 KNOTS WITH GUSTS UP TO 30 KNOTS EARLY IN
THE MORNING. A CHANCE OF SNOW SHOWERS EARLY IN THE EVENING.
FREEZING SPRAY UNTIL EARLY MORNING. WAVES 8 TO 12 FEET. WAVES
OCCASIONALLY AROUND 15 FEET.
.SUNDAY...SOUTHWEST WINDS 20 TO 25 KNOTS WITH GUSTS UP TO
35 KNOTS. A CHANCE OF RAIN AND SNOW IN THE AFTERNOON. WAVES 6 TO
9 FEET. WAVES OCCASIONALLY AROUND 12 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 20 TO 25 KNOTS WITH GUSTS UP TO
40 KNOTS BECOMING WEST 10 TO 15 KNOTS. A CHANCE OF SNOW EARLY IN
THE EVENING. WAVES 6 TO 9 FEET. WAVES OCCASIONALLY AROUND
12 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 10 KNOTS BACKING TO THE SOUTH LATE
IN THE AFTERNOON, THEN INCREASING TO 10 TO 15 KNOTS LATE IN THE
EVENING. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...SOUTH WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST 10 TO
15 KNOTS. A CHANCE OF RAIN IN THE LATE MORNING AND EARLY
AFTERNOON. SNOW LIKELY EARLY IN THE EVENING. RAIN LIKELY UNTIL
EARLY MORNING. WAVES 1 TO 3 FEET.
.WEDNESDAY...EAST WINDS 10 TO 15 KNOTS BECOMING NORTHEAST 15 TO
20 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN BECOMING
NORTH 20 TO 25 KNOTS WITH GUSTS UP TO 35 KNOTS UNTIL EARLY
MORNING. A CHANCE OF RAIN AND SNOW EARLY IN THE MORNING. A CHANCE
OF RAIN LATE IN THE AFTERNOON, THEN A CHANCE OF SNOW UNTIL EARLY
MORNING. WAVES 3 TO 5 FEET BUILDING TO 6 TO 9 FEET UNTIL EARLY
MORNING. WAVES OCCASIONALLY AROUND 12 FEET.


$$

LHZ363-462-252115-
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-
358 AM EST SAT FEB 25 2017

...GALE WARNING IN EFFECT THROUGH THIS EVENING...
...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.TODAY...SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST 20 TO
25 KNOTS IN THE LATE MORNING AND AFTERNOON. GUSTS TO 35 KNOT
GALES. A CHANCE OF SHOWERS IN THE MORNING. A CHANCE OF SNOW
SHOWERS. WAVES 4 TO 6 FEET BUILDING TO 6 TO 9 FEET LATE IN THE
AFTERNOON. WAVES OCCASIONALLY AROUND 12 FEET.
.TONIGHT...WEST WINDS TO 30 KNOTS WITH GUSTS UP TO 35 KNOTS
DECREASING TO 20 TO 25 KNOTS WITH GUSTS UP TO 35 KNOTS IN THE
LATE EVENING AND OVERNIGHT. WAVES 8 TO 12 FEET. WAVES
OCCASIONALLY AROUND 15 FEET.
.SUNDAY...SOUTHWEST WINDS 20 TO 25 KNOTS. GUSTS TO 35 KNOT GALES
INCREASING TO 40 KNOTS EARLY IN THE AFTERNOON. WAVES 6 TO 9 FEET.
WAVES OCCASIONALLY AROUND 12 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 20 TO 25 KNOTS WITH GUSTS UP TO
40 KNOTS DECREASING TO 10 TO 15 KNOTS. WAVES 6 TO 9 FEET. WAVES
OCCASIONALLY AROUND 12 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING SOUTH 5 TO
10 KNOTS LATE IN THE MORNING, THEN INCREASING TO 10 TO 15 KNOTS
LATE IN THE EVENING. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...SOUTH WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST 10 TO
15 KNOTS. A CHANCE OF RAIN IN THE AFTERNOON. RAIN LIKELY UNTIL
EARLY MORNING. WAVES 1 TO 3 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO
20 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN BECOMING
NORTH 20 TO 25 KNOTS WITH GUSTS UP TO 35 KNOTS UNTIL EARLY
MORNING. RAIN AND SNOW LIKELY EARLY IN THE MORNING. A CHANCE OF
RAIN IN THE AFTERNOON AND EVENING. A CHANCE OF SNOW. WAVES 2 TO
4 FEET BUILDING TO 6 TO 9 FEET UNTIL EARLY MORNING. WAVES
OCCASIONALLY AROUND 12 FEET.


$$

LHZ463-464-252115-
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-
358 AM EST SAT FEB 25 2017

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.TODAY...SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING WEST 20 TO
25 KNOTS IN THE AFTERNOON. GUSTS TO 35 KNOT GALES. A CHANCE OF
RAIN AND SNOW SHOWERS IN THE MORNING. WAVES 2 TO 4 FEET BUILDING
TO 4 TO 6 FEET IN THE AFTERNOON. WAVES OCCASIONALLY AROUND
8 FEET.
.TONIGHT...WEST WINDS 20 TO 25 KNOTS WITH GUSTS UP TO 35 KNOTS
DECREASING TO 15 TO 20 KNOTS EARLY IN THE MORNING. WAVES 6 TO
9 FEET. WAVES OCCASIONALLY AROUND 12 FEET.
.SUNDAY...WEST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 30 KNOTS
BECOMING SOUTHWEST 20 TO 25 KNOTS WITH GUSTS UP TO 30 KNOTS EARLY
IN THE AFTERNOON. WAVES 4 TO 6 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO
30 KNOTS DECREASING TO 10 TO 15 KNOTS AFTER MIDNIGHT. WAVES 3 TO
5 FEET. WAVES OCCASIONALLY AROUND 8 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING SOUTH 5 TO
10 KNOTS. WAVES 1 TO 3 FEET.
.TUESDAY...SOUTHEAST WINDS 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS IN THE LATE EVENING AND EARLY MORNING. A CHANCE OF RAIN
EARLY IN THE MORNING. A CHANCE OF SNOW IN THE LATE MORNING AND
EARLY AFTERNOON, THEN RAIN LIKELY UNTIL EARLY MORNING. WAVES 1 TO
3 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS VEERING TO THE WEST IN
THE LATE MORNING AND EARLY AFTERNOON, THEN BECOMING NORTH 15 TO
20 KNOTS EARLY IN THE EVENING INCREASING TO 20 TO 25 KNOTS WITH
GUSTS UP TO 30 KNOTS IN THE LATE EVENING AND EARLY MORNING. A
CHANCE OF RAIN EARLY IN THE MORNING. A CHANCE OF RAIN IN THE
AFTERNOON AND EVENING. A CHANCE OF SNOW. WAVES 1 TO 3 FEET
BUILDING TO 6 TO 9 FEET. WAVES OCCASIONALLY AROUND 12 FEET.


$$

LHZ461-252115-
MAFOR 2510/
HURON NORTH...GALE WARNING IN EFFECT...11510 11620 11630 12640
19650 12641 19651 11631. A CHANCE OF RAIN AND SNOW SHOWERS THIS
MORNING...THEN A CHANCE OF SNOW SHOWERS THIS AFTERNOON. A CHANCE
OF SNOW SHOWERS TONIGHT. WAVES 2 TO 4 FEET BUILDING TO 8 TO 12
FEET. OCCASIONAL WAVE HEIGHT AROUND 15 FEET TODAY. WAVES 6 TO 9
FEET. OCCASIONAL WAVE HEIGHT AROUND 12 FEET TONIGHT. 220204.

HURON SOUTH...GALE WARNING IN EFFECT...11520 19550 11530 19550
12630 19650 12640 19650 12630. A CHANCE OF RAIN AND SNOW
SHOWERS THIS MORNING...THEN A CHANCE OF SNOW SHOWERS THIS
AFTERNOON. WAVES 2 TO 4 FEET BUILDING TO 5 TO 7 FEET. OCCASIONAL
WAVE HEIGHT AROUND 10 FEET TODAY. WAVES 6 TO 9 FEET. OCCASIONAL
WAVE HEIGHT AROUND 12 FEET TONIGHT. 210204 210507.

$$

BT

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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