Marine Weather Message
Issued by NWS Detroit/Pontiac, MI

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000
WHUS73 KDTX 232101
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
401 PM EST THU FEB 23 2017

...A PERIOD OF GALES OVER NORTHERN LAKE HURON FRIDAY...

.NORTHEAST WINDS WILL INCREASE LATE TONIGHT INTO FRIDAY NIGHT AS LOW
PRESSURE LIFTS FROM THE CENTRAL PLAINS TO THE GREAT LAKES. WINDS
WILL BECOME STRONGER OVER LAKE HURON, PARTICULARLY ACROSS THE
NORTHERN HALF OF THE LAKE WHERE GALE FORCE WIND GUSTS ARE EXPECTED
TO DEVELOP FRIDAY INTO FRIDAY EVENING. THE PERSISTENT STRONG
NORTHEAST WINDS WILL ALSO ALLOW LARGE WAVES TO GROW OVER SAGINAW BAY
AND OFF THE TIP OF THE NORTHERN THUMB INTO LATE FRIDAY NIGHT.
THUNDERSTORMS WILL ALSO BE POSSIBLE TONIGHT, AND ESPECIALLY LATE
FRIDAY THROUGH THE FIRST HALF OF FRIDAY NIGHT AS A WARM AND UNSTABLE
AIRMASS IS REPLACED BY MUCH COOLER AIR. THUNDERSTORMS MAY BECOME
STRONG TO SEVERE LATE FRIDAY AND FRIDAY NIGHT, WITH THE HIGHEST
PROBABILITY OF STORMS OVER LAKE ST CLAIR AND WESTERN LAKE ERIE.

THE LOW WILL LIFT FROM MICHIGAN TO QUEBEC ON SATURDAY, USHERING IN
COOLER AIR AND GUSTY WESTERLY WINDS BEHIND A STRONG COLD FRONT. WIND
GUSTS ARE EXPECTED TO REACH 30 KNOTS ACROSS ALL MARINE AREAS ON
SATURDAY, AND COULD POTENTIALLY REACH GALES. THE BEST POTENTIAL FOR
A PERIOD OF GALE FORCE WINDS WILL AGAIN BE OVER LAKE HURON SATURDAY
AND SATURDAY NIGHT.

LHZ361-362-240930-
/O.UPG.KDTX.GL.A.0010.170224T1500Z-170225T0300Z/
/O.NEW.KDTX.GL.W.0009.170224T1500Z-170225T0300Z/
/O.NEW.KDTX.GL.A.0011.170225T1500Z-170226T0900Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
401 PM EST THU FEB 23 2017

...GALE WARNING IN EFFECT FROM 10 AM TO 10 PM EST FRIDAY...
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT FROM 10 AM TO 10 PM EST FRIDAY. A
GALE WATCH HAS ALSO BEEN ISSUED. THIS GALE WATCH IS IN EFFECT
FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 32 KNOTS FROM THE EAST WITH GUSTS UP TO 39 KNOTS.
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 10 FEET WITH A
  POTENTIAL MAXIMUM WAVE HEIGHT OF 14 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 1 PM EST FRIDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EST FRIDAY.

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS
  UP TO 32 KNOTS FROM THE WEST WITH GUSTS UP TO 40 KNOTS. THE
  LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 9 FEET WITH A
  POTENTIAL MAXIMUM WAVE HEIGHT OF 13 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 5 PM EST
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 12 AM EST
  SUNDAY.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

A GALE WATCH IS ISSUED WHEN THE RISK OF GALE FORCE WINDS OF 34 TO
47 KNOTS HAS SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING
AND/OR LOCATION IS STILL UNCERTAIN. IT IS INTENDED TO PROVIDE
ADDITIONAL LEAD TIME FOR MARINERS WHO MAY WISH TO CONSIDER
ALTERING THEIR PLANS.

&&

$$

LHZ441-240930-
/O.CON.KDTX.SC.Y.0010.170224T0900Z-170225T0300Z/
/O.NEW.KDTX.GL.A.0011.170225T1500Z-170226T0900Z/
PORT AUSTIN TO HARBOR BEACH MI-
401 PM EST THU FEB 23 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM TO 10 PM EST
FRIDAY...
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WATCH...WHICH IS IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT.

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS
  UP TO 25 KNOTS FROM THE WEST WITH GUSTS UP TO 36 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 3 PM EST
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 1 AM EST
  SUNDAY.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 20 KNOTS FROM THE EAST WITH GUSTS UP TO
  28 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 6
  FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 8 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 10 AM EST FRIDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EST 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.

A GALE WATCH IS ISSUED WHEN THE RISK OF GALE FORCE WINDS OF 34 TO
47 KNOTS HAS SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING
AND/OR LOCATION IS STILL UNCERTAIN. IT IS INTENDED TO PROVIDE
ADDITIONAL LEAD TIME FOR MARINERS WHO MAY WISH TO CONSIDER
ALTERING THEIR PLANS.

&&

$$

LHZ421-240930-
/O.CON.KDTX.SC.Y.0010.170224T0900Z-170225T0300Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-
401 PM EST THU FEB 23 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM TO 10 PM EST
FRIDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 21 KNOTS FROM THE NORTHEAST WITH GUSTS
  UP TO 28 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 9 AM EST FRIDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EST 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.

&&

$$

LHZ363-442-443-462>464-240930-
/O.NEW.KDTX.GL.A.0011.170225T1500Z-170226T0900Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-
401 PM EST THU FEB 23 2017

...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WATCH...WHICH IS IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT.

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS
  UP TO 29 KNOTS FROM THE WEST WITH GUSTS UP TO 37 KNOTS. THE
  LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 8 FEET WITH A
  POTENTIAL MAXIMUM WAVE HEIGHT OF 11 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 5 PM EST
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 12 AM EST
  SUNDAY.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WATCH IS ISSUED WHEN THE RISK OF GALE FORCE WINDS OF 34 TO
47 KNOTS HAS SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING
AND/OR LOCATION IS STILL UNCERTAIN. IT IS INTENDED TO PROVIDE
ADDITIONAL LEAD TIME FOR MARINERS WHO MAY WISH TO CONSIDER
ALTERING THEIR PLANS.

&&

$$

MR



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