Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 202046
GLFLH

OPEN LAKE FORECAST FOR LAKE HURON
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
346 PM EST MON FEB 20 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...HIGH PRESSURE...30.20 INCHES...WILL GRADUALLY DIMINISH
THROUGHOUT THE EVENING AND OVERNIGHT HOURS LEADING INTO TUESDAY...AS
A LOW PRESSURE SYSTEM PUSHES NORTHEAST FROM MANITOBA INTO NORTHERN
ONTARIO...PRESSURE WILL DECREASE DOWN TO 29.90 INCHES OVER THE GREAT
LAKES BY TUESDAY AFTERNOON...AND WILL CONTINUE TO GRADUALLY DECREASE
AS A SURFACE LOW...29.40...TRAVELS FROM THE CENTRAL PLAINS INTO THE
NORTHERN GREAT LAKES WEDNESDAY INTO THURSDAY.

LHZ361-210930-
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
346 PM EST MON FEB 20 2017

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


$$

LHZ362-363-210930-
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-
346 PM EST MON FEB 20 2017

.TONIGHT...SOUTHEAST WINDS 15 TO 20 KNOTS INCREASING TO 20 TO
25 KNOTS AFTER MIDNIGHT. WAVES 4 TO 6 FEET BUILDING TO 6 TO
9 FEET EARLY IN THE MORNING. WAVES OCCASIONALLY AROUND 12 FEET.
.TUESDAY...SOUTH WINDS 20 TO 25 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS. SHOWERS LIKELY IN THE MORNING, THEN A CHANCE OF SHOWERS
IN THE AFTERNOON. WAVES 5 TO 7 FEET SUBSIDING TO 2 TO 4 FEET LATE
IN THE AFTERNOON. WAVES OCCASIONALLY AROUND 10 FEET.
.TUESDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS. WAVES 1 TO
3 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS DECREASING TO 5 TO
10 KNOTS EARLY IN THE AFTERNOON. WAVES 1 TO 3 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS INCREASING TO 10 TO
15 KNOTS AFTER MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO
4 FEET IN THE LATE EVENING AND OVERNIGHT.
.THURSDAY...SOUTHWEST WINDS 10 TO 15 KNOTS VEERING TO THE NORTH
LATE IN THE EVENING. A CHANCE OF RAIN LATE IN THE AFTERNOON. A
CHANCE OF SNOW LATE IN THE EVENING. WAVES 2 TO 4 FEET.
.FRIDAY...NORTHEAST WINDS 15 TO 20 KNOTS BECOMING EAST 20 TO
25 KNOTS WITH GUSTS UP TO 30 KNOTS IN THE LATE MORNING AND EARLY
AFTERNOON, THEN DECREASING TO 15 TO 20 KNOTS WITH GUSTS UP TO
30 KNOTS UNTIL EARLY MORNING. RAIN AND SNOW WITH THUNDERSTORMS
LIKELY. WAVES 3 TO 5 FEET BUILDING TO 8 TO 12 FEET. WAVES
OCCASIONALLY AROUND 15 FEET.
.SATURDAY...SOUTH WINDS 15 TO 20 KNOTS BECOMING SOUTHWEST 20 TO
25 KNOTS WITH GUSTS UP TO 40 KNOT GALES IN THE LATE MORNING AND
EARLY AFTERNOON, THEN BECOMING WEST TO 30 KNOTS WITH GUSTS UP TO
40 KNOT GALESEARLY IN THE EVENING DECREASING TO 20 TO 25 KNOTS
WITH GUSTS UP TO 40 KNOT GALES IN THE LATE EVENING AND EARLY
MORNING. RAIN AND SNOW EARLY IN THE MORNING, THEN A CHANCE OF RAIN
AND SNOW IN THE LATE MORNING AND EARLY AFTERNOON. A CHANCE OF
SNOW IN THE LATE EVENING AND EARLY MORNING. WAVES 8 TO 12 FEET.
WAVES OCCASIONALLY AROUND 15 FEET.


$$

LHZ462>464-210930-
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-
346 PM EST MON FEB 20 2017

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


$$

LHZ461-210930-
MAFOR 2022/
HURON NORTH 14320 11436 11426 11516 11600. A CHANCE OF
SHOWERS OVERNIGHT. A CHANCE OF SHOWERS TUESDAY AFTERNOON. WAVES 2
TO 4 FEET BUILDING TO 5 TO 7 FEET. OCCASIONAL WAVE HEIGHT AROUND
10 FEET TONIGHT. WAVES 5 TO 7 FEET SUBSIDING TO 2 TO 4 FEET.
OCCASIONAL WAVE HEIGHT AROUND 10 FEET TUESDAY. 210204 210305.

HURON SOUTH 11310 11320 11330 12430 11436 11426 11400.
WAVES 1 TO 3 FEET BUILDING TO 4 TO 6 FEET. OCCASIONAL WAVE HEIGHT
AROUND 8 FEET TONIGHT. WAVES 4 TO 6 FEET SUBSIDING TO 1 TO 3
FEET. OCCASIONAL WAVE HEIGHT AROUND 8 FEET TUESDAY. 210102
210204.

$$

SF

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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