Marine Weather Message
Issued by NWS Detroit/Pontiac, MI

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WHUS73 KDTX 170802
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
402 AM EDT TUE OCT 17 2017

...STRONG SOUTHWEST WINDS TODAY...

.SURFACE HIGH PRESSURE WILL BUILD IN ACROSS THE OHIO RIVER VALLEY AND
SOUTHEASTERN US AS ANOTHER LOW PRESSURE SYSTEM TO OUR NORTH PASS
THROUGH NORTHERN ONTARIO. MICHIGAN WILL BE PLACED IN BETWEEN THESE
TWO SYSTEM AND IT ALLOW THE GRADIENT FLOW TO STRENGTHEN OUT OF THE
SOUTHWEST TODAY. A LONG FETCH OF GUSTY WINDS OUT OF THE SOUTHWEST AT
20-30 KNOTS WILL SET UP FOR MUCH OF LAKE HURON BASIN AND SAGINAW
BAY. THESE WINDS SHOULD PERSIST OVER THE NEXT COUPLE OF DAYS AS
GRADIENT WINDS WILL REMAIN ELEVATED WITHIN THIS REGIME. SMALL CRAFT
ADVISORIES ARE IN EFFECT FOR SAGINAW BAY AND THE NEARSHORE WATERS OF
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH.

LHZ421-422-441-172200-
/O.CON.KDTX.SC.Y.0067.000000T0000Z-171017T2200Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
PORT AUSTIN TO HARBOR BEACH MI-
402 AM EDT TUE OCT 17 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS OF 15-20 KNOTS FROM THE SOUTHWEST WITH GUSTS UP
  TO 25 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 11 AM EDT
  TUESDAY WITH THE LARGEST WAVES EXPECTED AROUND 11 AM 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.

&&

$$

IRL



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