531 
WHUS73 KDTX 072047
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
347 PM EST SAT JAN 7 2017

...ELEVATED WAVES INTO TOMORROW MORNING...

.WESTERLY WINDS WILL CONTINUE TO INCREASE INTO THIS EVENING AS LOW
PRESSURE TRACKS JUST NORTH OF LAKE HURON. A TRAILING WEAK COLD FRONT
WILL THEN DROP THROUGH LAKE HURON TONIGHT AS THIS LOW CONTINUES INTO
THE EASTERN GREAT LAKES. WIND SPEEDS WILL INCREASE TO 25 TO 30 KNOTS
AS FLOW VEERS TO THE NORTHWEST BEHIND THIS FRONTAL BOUNDARY. WHILE
WIND GUSTS MAY OCCASIONALLY APPROACH 35 KNOTS OVERNIGHT, THE LIMITED
FREQUENCY AND MAGNITUDE OF THESE GUSTS ARGUE AGAINST A GALE WARNING
FOR THE OPEN WATERS OF LAKE HURON.

STRONG WINDS, COLD TEMPERATURES AND WAVE HEIGHTS PEAKING NEAR 10
FEET IN SOME INSTANCES WILL CREATE AREAS OF FREEZING SPRAY TONIGHT
BOTH OVER THE OPEN WATERS AND PORTIONS OF THE NEARSHORE WATERS OF
LAKE HURON. FOR THE NEARSHORE WATERS, SMALL CRAFT ADVISORIES REMAIN
IN EFFECT TONIGHT FOR ICE-FREE AREAS AS GUSTS REACH 30 KNOTS AND
WAVES BUILD AS HIGH AS 6 FEET.

ANOTHER PERIOD OF STRONG WINDS, POSSIBLY GUSTING TO GALE FORCE OVER
A PORTION OF LAKE HURON, WILL BE POSSIBLE SUNDAY NIGHT INTO MONDAY
MORNING AS A LOW PRESSURE SYSTEM TRACKS FROM ONTARIO INTO QUEBEC.
ANOTHER VIGOROUS LOW PRESSURE WILL THEN TRACK INTO THE NORTHERN
GREAT LAKES TUESDAY EVENING, BRINGING GUSTY SOUTHWEST FLOW WITH AT
LEAST SOME POTENTIAL OF GALE FORCE GUSTS.

LHZ421-441-080930-
/O.EXT.KDTX.SC.Y.0003.170107T2047Z-170108T1700Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-
347 PM EST SAT JAN 7 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL NOON EST SUNDAY...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT UNTIL NOON EST SUNDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 25 KNOTS FROM THE WEST WITH GUSTS UP TO 
  35 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 6 
  FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 8 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 11 PM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 3 AM EST 
  SUNDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

LHZ442-443-080930-
/O.EXT.KDTX.SC.Y.0003.170107T2047Z-170108T1700Z/
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-
347 PM EST SAT JAN 7 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL NOON EST SUNDAY...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT UNTIL NOON EST SUNDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 24 KNOTS FROM THE NORTHWEST WITH GUSTS 
  UP TO 30 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL 
  BE 5 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 7 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 1 AM EST SUNDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 5 AM EST SUNDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

SF