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459
WHUS73 KDTX 301954
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
354 PM EDT TUE SEP 30 2014

...ELEVATED WAVES PERSIST ALONG PART OF LAKE HURON SHORE...

.A TIGHT NORTHERLY GRADIENT REMAINS OVER CENTRAL LAKE HURON KEEPING
WIND SPEEDS UP LONGER INTO THE AFTERNOON. THESE WINDS WILL CONTINUE
TO BUILD WAVES UP TO SMALL CRAFT CRITERIA ALONG THE LAKE HURON
SHORELINE OF THE THUMB. SMALL CRAFT ADVISORIES WILL CONTINUE THROUGH
THIS EVENING TO ACCOUNT FOR THAT. WINDS WILL DIMINISH TONIGHT AS
HIGH PRESSURE LESSENS THE GRADIENT OVER THE LAKES BUT THE PERSISTENT
NORTHEAST FLOW WILL KEEP SOME ELEVATED WAVES HEIGHTS INTO THE
OVERNIGHT HOURS. LIGHT WINDS AND LOW WAVES WILL PERSIST WEDNESDAY
INTO THURSDAY. HOWEVER...SOUTHERLY WINDS DEVELOPING AHEAD OF A COLD
FRONT LATE THURSDAY COULD RESULT IN WINDS UP TO 30 KNOTS OVER THE
OPEN WATERS OF LAKE HURON THURSDAY NIGHT.

LHZ421-441-010200-
/O.CAN.KDTX.SC.Y.0029.000000T0000Z-140930T2200Z/
/O.NEW.KDTX.SC.Y.0030.140930T2000Z-141001T0200Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-
354 PM EDT TUE SEP 30 2014

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY...WHICH IS IN EFFECT UNTIL 10 PM EDT THIS
EVENING.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 17 KNOTS FROM THE NORTH WITH GUSTS UP
  TO 21 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 4 PM EDT TUESDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 4 PM EDT TUESDAY.

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.

&&

$$

LHZ442-302100-
/O.CAN.KDTX.SC.Y.0029.000000T0000Z-140930T2200Z/
HARBOR BEACH TO PORT SANILAC MI-
354 PM EDT TUE SEP 30 2014

...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS CANCELLED THE
SMALL CRAFT ADVISORY.

$$









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