Great Lakes Forecast
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000
FZUS63 KDTX 191348
GLFLH

OPEN LAKE FORECAST FOR LAKE HURON
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
948 AM EDT WED APR 19 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...29.60 INCHES...WILL GRADUALLY WEAKEN AS
IT TRACKS FROM SOUTHERN ONTARIO INTO WESTERN QUEBEC TODAY AND
TONIGHT.  THIS WILL ALLOW A COLD FRONT TO SLIP ACROSS THE CENTRAL
GREAT LAKES.  A SECOND LOW PRESSURE SYSTEM...29.60 INCHES...OVER THE
CENTRAL PLAINS ON WEDNESDAY WILL THEN MOVE INTO THE LOWER PENINSULA
ON THURSDAY. HIGH PRESSURE...30.30 INCHES...WILL THEN SETTLE BACK IN
ACROSS MICHIGAN BY SATURDAY.

LHZ361-362-192015-
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
948 AM EDT WED APR 19 2017

...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY
EVENING...

.REST OF TODAY...WEST WINDS 15 TO 20 KNOTS. WAVES 4 TO 6 FEET.
WAVES OCCASIONALLY AROUND 8 FEET.
.TONIGHT...NORTH WINDS 10 TO 15 KNOTS BECOMING NORTHEAST 15 TO
20 KNOTS AFTER MIDNIGHT...THEN BECOMING EAST 20 TO 25 KNOTS EARLY
IN THE MORNING. SHOWERS AFTER MIDNIGHT. WAVES 3 TO 5 FEET
BUILDING TO 5 TO 7 FEET EARLY IN THE MORNING. WAVES OCCASIONALLY
AROUND 10 FEET.
.THURSDAY...EAST WINDS 20 TO 25 KNOTS INCREASING TO 30 KNOTS IN
THE LATE MORNING AND AFTERNOON. GUSTS TO 35 KNOT GALES. SHOWERS.
WAVES 8 TO 12 FEET. WAVES OCCASIONALLY AROUND 15 FEET.
.THURSDAY NIGHT...EAST WINDS 15 TO 20 KNOTS WITH GUSTS TO
30 KNOTS BECOMING SOUTH 10 TO 15 KNOTS IN THE LATE EVENING AND
EARLY MORNING...THEN VEERING TO THE SOUTHWEST AFTER MIDNIGHT.
SHOWERS UNTIL EARLY MORNING...THEN A CHANCE OF RAIN AND SNOW
SHOWERS EARLY IN THE MORNING. WAVES 10 TO 14 FEET SUBSIDING TO
3 TO 5 FEET. WAVES OCCASIONALLY AROUND 18 FEET.
.FRIDAY...WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS LATE IN THE EVENING. A CHANCE OF SNOW SHOWERS EARLY IN
THE MORNING. A CHANCE OF SHOWERS UNTIL LATE AFTERNOON. WAVES 4 TO
6 FEET. WAVES OCCASIONALLY AROUND 8 FEET.
.SATURDAY...NORTH WINDS 10 TO 15 KNOTS DECREASING TO 5 TO
10 KNOTS UNTIL EARLY EVENING...THEN BACKING TO THE WEST IN THE
LATE EVENING AND EARLY MORNING. WAVES 2 TO 4 FEET SUBSIDING TO
1 TO 3 FEET.
.SUNDAY...WEST WINDS 5 TO 10 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET IN THE LATE
EVENING AND EARLY MORNING.


$$

LHZ363-462-192015-
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-
948 AM EDT WED APR 19 2017

.REST OF TODAY...SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING WEST
5 TO 10 KNOTS EARLY IN THE AFTERNOON...THEN VEERING TO THE
NORTHWEST LATE IN THE AFTERNOON. WAVES 3 TO 5 FEET.
.TONIGHT...NORTH WINDS 10 TO 15 KNOTS BECOMING NORTHEAST 15 TO
20 KNOTS AFTER MIDNIGHT. SHOWERS WITH THUNDERSTORMS LIKELY AFTER
MIDNIGHT. WAVES 3 TO 5 FEET.
.THURSDAY...EAST WINDS 20 TO 25 KNOTS DECREASING TO 15 TO
20 KNOTS IN THE LATE MORNING AND AFTERNOON. SHOWERS AND
THUNDERSTORMS. WAVES 6 TO 9 FEET. WAVES OCCASIONALLY AROUND
12 FEET.
.THURSDAY NIGHT...EAST WINDS 10 TO 15 KNOTS VEERING TO THE
SOUTHWEST IN THE LATE EVENING AND EARLY MORNING...THEN BECOMING
WEST 15 TO 20 KNOTS AFTER MIDNIGHT. SHOWERS AND THUNDERSTORMS
EARLY IN THE EVENING...THEN A CHANCE OF THUNDERSTORMS LATE IN THE
EVENING. A CHANCE OF SHOWERS IN THE LATE EVENING AND EARLY
MORNING. WAVES 6 TO 9 FEET SUBSIDING TO 3 TO 5 FEET IN THE LATE
EVENING AND OVERNIGHT. WAVES OCCASIONALLY AROUND 12 FEET.
.FRIDAY...WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS LATE IN THE AFTERNOON. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY AROUND 8 FEET.
.SATURDAY...NORTH WINDS 10 TO 15 KNOTS DECREASING TO 5 TO
10 KNOTS UNTIL EARLY MORNING. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
3 FEET UNTIL EARLY MORNING.
.SUNDAY...NORTH WINDS 5 TO 10 KNOTS BECOMING WEST 10 TO 15 KNOTS
UNTIL EARLY MORNING. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET IN
THE LATE EVENING AND EARLY MORNING.


$$

LHZ463-464-192015-
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-
948 AM EDT WED APR 19 2017

.REST OF TODAY...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST
5 TO 10 KNOTS EARLY IN THE AFTERNOON...THEN BECOMING NORTHWEST
10 TO 15 KNOTS LATE IN THE AFTERNOON. SHOWERS LIKELY LATE IN THE
MORNING. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET IN THE
AFTERNOON.
.TONIGHT...NORTH WINDS 10 TO 15 KNOTS BECOMING NORTHEAST 5 TO
10 KNOTS AFTER MIDNIGHT. SHOWERS WITH THUNDERSTORMS LIKELY AFTER
MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET IN THE LATE
EVENING AND EARLY MORNING...THEN SUBSIDING TO 1 TO 3 FEET EARLY
IN THE MORNING.
.THURSDAY...EAST WINDS 10 TO 15 KNOTS BECOMING SOUTHEAST 15 TO
20 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON...THEN
DECREASING TO 10 TO 15 KNOTS EARLY IN THE AFTERNOON. SHOWERS AND
THUNDERSTORMS. WAVES 3 TO 5 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS VEERING TO THE
SOUTHWEST IN THE LATE EVENING AND OVERNIGHT. SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING...THEN A CHANCE OF
THUNDERSTORMS LATE IN THE EVENING. A CHANCE OF SHOWERS IN THE
LATE EVENING AND EARLY MORNING. WAVES 2 TO 4 FEET.
.FRIDAY...WEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS LATE IN THE AFTERNOON. WAVES 3 TO 5 FEET.
.SATURDAY...NORTH WINDS 10 TO 15 KNOTS DECREASING TO 5 TO
10 KNOTS IN THE LATE EVENING AND EARLY MORNING. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...NORTH WINDS 5 TO 10 KNOTS INCREASING TO 10 TO 15 KNOTS
IN THE LATE EVENING AND EARLY MORNING. WAVES 2 FEET OR LESS
BUILDING TO 2 TO 4 FEET IN THE LATE EVENING AND EARLY MORNING.


$$

LHZ461-192015-
MAFOR 1915/
HURON NORTH...GALE WARNING IN EFFECT...11620 12720 11800
11120 12236 11246. WAVES 3 TO 5 FEET THIS AFTERNOON. WAVES 2 TO
4 FEET BUILDING TO 3 TO 5 FEET TONIGHT. WAVES 5 TO 7 FEET.
OCCASIONAL WAVE HEIGHT AROUND 9 FEET THURSDAY MORNING. 210305
210406.

HURON SOUTH 11610 11700 12810 11110 11229 12239. WAVES 2 TO
4 FEET THIS AFTERNOON. WAVES 2 TO 4 FEET BUILDING TO 3 TO 5 FEET
TONIGHT. WAVES 3 TO 5 FEET THURSDAY MORNING. 220204.

$$

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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