Marine Weather Message
Issued by NWS Detroit/Pontiac, MI

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WHUS73 KDTX 110850
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
350 AM EST MON DEC 11 2017

...NORTHWEST GALES OVER LAKE HURON LATE TONIGHT THROUGH
TOMORROW NIGHT...

.SOUTHERLY WINDS WILL GRADUALLY INCREASE TODAY AND VEER TO THE
SOUTHWEST IN ADVANCE OF APPROACHING COLD FRONT THIS EVENING. THE
COLD FRONT IS QUITE STRONG AND WILL BRING MUCH COLDER AIR OVER THE
LAKE, LEADING TO UNSTABLE CONDITIONS. WILL BE UPGRADING THE GALE
WATCH TO A WARNING WITH SUSTAINED WINDS PEAKING NEAR GALE FORCE ON
TUESDAY MORNING WITH GUSTS PUSHING 45 KNOTS AT TIMES. GALES WILL
ARRIVE RATHER ABRUPTLY LATE TONIGHT IN THE WAKE OF THIS FRONT AND
PERSIST INTO TUESDAY EVENING BEFORE SUBSIDING SOMEWHAT.

THE COMBINATION OF THESE GUSTY WINDS, VERY COLD AIR AND FREQUEST
WAVE HEIGHTS IN EXCESS OF 10 FEET WILL LEAD TO AREAS OF FREEZING
SPRAY AS WELL ALLOW CONDITIONS SUGGEST MOST OF THIS SPRAY WILL HOLD
IN THE MODERATE CATEGORY SO NO WARNING IS ANTICIPATED. THE HIGHEST
WAVES MAY REACH 20 FEET OVER SO BY MIDDAY TUESDAY. AT THAT TIME,
SNOW SQUALL ACTIVITY WILL ALSO BEGIN TO CONSOLIDATE OVER THE
SOUTHERN BASIN OF LAKE HURON.

LHZ441-112100-
/O.CAN.KDTX.SC.Y.0093.000000T0000Z-171211T0900Z/
/O.UPG.KDTX.GL.A.0037.171212T0900Z-171213T0400Z/
/O.NEW.KDTX.GL.W.0042.171212T0900Z-171213T0900Z/
PORT AUSTIN TO HARBOR BEACH MI-
350 AM EST MON DEC 11 2017

...GALE WARNING IN EFFECT FROM 4 AM TUESDAY TO 4 AM EST
WEDNESDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM 4 AM TUESDAY TO 4 AM EST
WEDNESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 34 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 42
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 11 FEET
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 16 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 6 AM EST TUESDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 11 AM EST TUESDAY.

THE SMALL CRAFT ADVISORY HAS BEEN CANCELLED.

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.

&&

$$

LHZ361-112100-
/O.UPG.KDTX.GL.A.0037.171212T0900Z-171213T0400Z/
/O.NEW.KDTX.GL.W.0042.171212T0600Z-171213T0400Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
350 AM EST MON DEC 11 2017

...GALE WARNING IN EFFECT FROM 1 AM TO 11 PM EST TUESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM 1 AM TO 11 PM EST TUESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 30 KNOTS FROM THE NORTH WITH GUSTS UP TO 38
  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 6 AM EST TUESDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 6 AM EST TUESDAY.

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.

&&

$$

LHZ362-363-462>464-112100-
/O.UPG.KDTX.GL.A.0037.171212T0900Z-171213T0400Z/
/O.NEW.KDTX.GL.W.0042.171212T0700Z-171213T1000Z/
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
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-
350 AM EST MON DEC 11 2017

...GALE WARNING IN EFFECT FROM 2 AM TUESDAY TO 5 AM EST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM 2 AM TUESDAY TO 5 AM EST
WEDNESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS
  UP TO 36 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 44 KNOTS.
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 13 FEET WITH A
  POTENTIAL MAXIMUM WAVE HEIGHT OF 19 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 6 AM EST TUESDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 11 AM EST TUESDAY.

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.

&&

$$

LHZ421-442-443-112100-
/O.UPG.KDTX.GL.A.0037.171212T0900Z-171213T0400Z/
/O.NEW.KDTX.GL.W.0042.171212T0900Z-171213T0900Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
350 AM EST MON DEC 11 2017

...GALE WARNING IN EFFECT FROM 4 AM TUESDAY TO 4 AM EST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM 4 AM TUESDAY TO 4 AM EST
WEDNESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 33 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 42
  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 6 AM EST TUESDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 11 AM EST TUESDAY.

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.

&&

$$

LHZ422-112100-
/O.NEW.KDTX.GL.W.0042.171212T0900Z-171212T2100Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
350 AM EST MON DEC 11 2017

...GALE WARNING IN EFFECT FROM 4 AM TO 4 PM EST TUESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM 4 AM TO 4 PM EST TUESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 29 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 36
  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 6 AM EST TUESDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 7 AM EST TUESDAY.

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.

&&

$$

LCZ460-LEZ444-112100-
/O.NEW.KDTX.SC.Y.0094.171212T0800Z-171213T0400Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
350 AM EST MON DEC 11 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM TO 11 PM EST
TUESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY WHICH IS IN EFFECT FROM 3 AM TO 11 PM EST
TUESDAY.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 26 KNOTS FROM THE NORTHWEST WITH GUSTS
  UP TO 32 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL
  BE 3 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 4 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 6 AM EST TUESDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 8 AM EST 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.

&&

$$

SF



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