Marine Weather Message
Issued by NWS Detroit/Pontiac, MI

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000
WHUS73 KDTX 291959
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
359 PM EDT WED MAR 29 2017

...INCREASING EASTERLY FLOW...

.THE CENTRAL GREAT LAKES WILL REMAIN SITUATED BETWEEN HIGH PRESSURE
POSITIONED TO THE NORTHEAST AND APPROACHING LOW PRESSURE LIFTING
FROM THE CENTRAL PLAINS INTO THE OHIO VALLEY THROUGH THE END OF THE
WEEK.  THE RESULTING TIGHT GRADIENT WILL MAINTAIN AN EXTENDED PERIOD
OF STRONG WINDS WITH AN EAST TO NORTHEAST COMPONENT.   EASTERLY
WINDS STRENGTHEN BEGINNING THURSDAY UNDER WEAKLY UNSTABLE
CONDITIONS.   STRONGEST WINDS THURSDAY NIGHT THROUGH FRIDAY MORNING,
WHERE A PERIOD OF GUSTS TO NEAR GALES WILL BE POSSIBLE OVER CENTRAL
AND NORTHERN SECTIONS OF LAKE HURON.  MARGINAL CONDITIONS WILL
PRECLUDE ISSUANCE OF A GALE WATCH AT THIS TIME.  BUILDING WAVE
HEIGHTS UNDER THIS FLOW WILL EVENTUALLY RESULT IN SMALL CRAFT LEVEL
CONDITIONS FOR THE ENTIRE LAKE HURON NEARSHORE WATERS AND OUTER
SAGINAW BAY LATE THURSDAY AND THURSDAY NIGHT.  THESE CONDITIONS WILL
LIKELY PERSIST THROUGH FRIDAY OVER MOST LOCATIONS GIVEN CONTINUED
NORTHEAST FLOW.  WINDS AND SUBSEQUENT WAVES HEIGHTS WILL EASE AS THE
THE LOW EXITS EASTWARD FRIDAY NIGHT.

LHZ421-441-442-300800-
/O.NEW.KDTX.SC.Y.0024.170330T2100Z-170401T0800Z/
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-
359 PM EDT WED MAR 29 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM THURSDAY TO 4 AM EDT
SATURDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY...WHICH IS IN EFFECT FROM 5 PM THURSDAY TO
4 AM EDT SATURDAY.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 24 KNOTS FROM THE EAST WITH GUSTS UP TO
  26 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 10 PM EDT
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 1 AM EDT
  FRIDAY.

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.

&&

$$

LEZ444-300800-
/O.NEW.KDTX.SC.Y.0024.170330T1200Z-170331T0200Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
359 PM EDT WED MAR 29 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM TO 10 PM EDT
THURSDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY...WHICH IS IN EFFECT FROM 8 AM TO 10 PM EDT
THURSDAY.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 20 KNOTS FROM THE EAST WITH GUSTS UP TO
  22 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 4
  FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 5 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 10 AM EDT
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 12 PM 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.

&&

$$

LHZ443-300800-
/O.NEW.KDTX.SC.Y.0024.170330T2100Z-170331T1400Z/
PORT SANILAC TO PORT HURON MI-
359 PM EDT WED MAR 29 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM THURSDAY TO 10 AM EDT
FRIDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY...WHICH IS IN EFFECT FROM 5 PM THURSDAY TO
10 AM EDT FRIDAY.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 19 KNOTS FROM THE EAST WITH GUSTS UP TO
  23 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 7 PM EDT
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 9 PM 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.

&&

$$

DRC


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