Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 201356
GLFLH

OPEN LAKE FORECAST FOR LAKE HURON
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
956 AM EDT THU APR 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...LOW PRESSURE...29.60 INCHES...WILL TRACK EAST AND
THROUGH LOWER MICHIGAN TODAY.  THIS WILL BRING A PATTERN OF
UNSETTLED WEATHER...WITH SHOWERS AND THUNDERSTORMS LIKELY THROUGH
THIS EVENING.  THIS LOW WILL THEN TRACK FROM SOUTHERN ONTARIO INTO
WESTERN QUEBEC TONIGHT AND FRIDAY.   HIGH PRESSURE...30.30
INCHES...WILL SETTLE BACK IN ACROSS MICHIGAN BY SATURDAY.

LHZ361-362-202030-
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-
956 AM EDT THU APR 20 2017

...GALE WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING...

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


$$

LHZ363-462-202030-
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-
956 AM EDT THU APR 20 2017

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


$$

LHZ463-464-202030-
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-
956 AM EDT THU APR 20 2017

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


$$

LHZ461-202030-
MAFOR 2015/
HURON NORTH...GALE WARNING IN EFFECT...12246 19256 11246 11336
11410 13620. A CHANCE OF THUNDERSTORMS THIS AFTERNOON. A CHANCE
OF THUNDERSTORMS IN THE EVENING...THEN A CHANCE OF SHOWERS
OVERNIGHT. A CHANCE OF SHOWERS FRIDAY MORNING. WAVES 6 TO 9 FEET.
OCCASIONAL WAVE HEIGHT AROUND 12 FEET THIS AFTERNOON. WAVES 6 TO
9 FEET SUBSIDING TO 2 TO 4 FEET. WAVES 2 TO 4 FEET FRIDAY
MORNING. 220609.

HURON SOUTH 12229 11319 11410 11510 13620. WAVES 4 TO 6 FEET.
220406.

$$

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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