Marine Weather Message
Issued by NWS Detroit/Pontiac, MI

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WHUS73 KDTX 180818
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
418 AM EDT WED OCT 18 2017

...STRONG SOUTHWEST WINDS TODAY THROUGH THURSDAY MORNING...

.A PRESSURE GRADIENT BETWEEN SURFACE HIGH PRESSURE SLOWLY MOVING EAST
THROUGH THE OHIO VALLEY AND LOW PRESSURE IN CENTRAL CANADA WILL
MAINTAIN GUSTY SOUTHWEST WINDS THROUGH THE MIDWEEK PERIOD. SMALL
CRAFT ADVISORIES ARE AGAIN IN EFFECT TODAY AND TONIGHT FOR SAGINAW
BAY AND THE NEARSHORE WATERS OF LAKE HURON FROM PORT AUSTIN TO
HARBOR BEACH. SOUTHWEST WINDS WILL THEN DIMINISH SLIGHTLY THIS
EVENING BELOW 20 KNOTS BEFORE MAINTAINING AROUND 20 KNOTS OVER LAKE
HURON ON THURSDAY.

LHZ421-422-441-182030-
/O.CON.KDTX.SC.Y.0068.171018T1400Z-171019T1400Z/
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-
418 AM EDT WED OCT 18 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 10 AM EDT THURSDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 24 KNOTS FROM THE SOUTHWEST 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 12 AM EDT
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 4 AM EDT
  THURSDAY.

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.

&&

$$

DRK


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