Marine Weather Message
Issued by NWS Detroit/Pontiac, MI

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000
WHUS73 KDTX 230800
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
400 AM EDT WED JUL 23 2014

...COOL NORTHERLY FLOW DEVELOPING THIS MORNING...

.POST FRONTAL COLD AIR ADVECTION THIS MORNING WILL RAPIDLY ALLOW
UNSTABLE CONDITIONS TO DEVELOP OVER THE LAKES. OBSERVATIONS ACROSS
THE NORTHERN GREAT LAKES ARE ALREADY SUPPORTING THIS. THE NORTHERLY
GRADIENT WILL SUPPORT OF FEW GUSTS OF 25 TO 30 KNOTS OVER LAKE HURON
TODAY. THIS WILL LEAD TO ROUGH BOATING CONDITIONS...PARTICULARLY ON
THE SOUTHERN LAKE HURON BASIN. WINDS WILL BECOME RATHER GUSTY ON
BOTH LAKE ST CLAIR AND ERIE AS WELL...LEADING TO SOME CHOPPY SEAS.
AT THIS POINT...CONDITIONS ARE LOOKING AS THOUGH THEY WILL FALL JUST
SHY OF SMALL CRAFT ADVISORY CONDITIONS ON LAKES ST CLAIR AND THE MI
WATERS OF LAKE ERIE. THE WIND COMPONENT OVER SAGINAW BAY IS EXPECTED
TO BE MORE NORTHEASTERLY WHICH HAS PROMPTED THE EXPANSION OF THE
SMALL CRAFT ADVISORY TO COVER THE ENTIRE BAY. THE GRADIENT WILL
SLOWLY WEAKEN TONIGHT...LEADING TO A STEADY DECREASE IN THE WINDS
/MAINLY AFTER MIDNIGHT/. HIGH PRESSURE WILL BE CENTERED OVER THE
REGION THURSDAY AND FRIDAY...LEADING TO FAVORABLE BOATING
CONDITIONS.

LHZ422-232000-
/O.EXA.KDTX.SC.Y.0017.140723T0900Z-140724T0200Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
400 AM EDT WED JUL 23 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: DURING THE SMALL CRAFT ADVISORY...EXPECT SUSTAINED WINDS
  UP TO 19 KNOTS FROM THE NORTH WITH GUSTS UP TO 27 KNOTS.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 6 AM EDT
  WEDNESDAY.

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.

&&

$$

LHZ421-441>443-232000-
/O.CON.KDTX.SC.Y.0017.140723T0900Z-140724T0200Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-
400 AM EDT WED JUL 23 2014

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

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

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 23 KNOTS FROM THE NORTH WITH GUSTS UP
  TO 31 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 7
  FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 10 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 8 AM EDT
  WEDNESDAY WITH THE LARGEST WAVES EXPECTED AROUND 10 AM EDT
  WEDNESDAY.

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.

&&

$$








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