Marine Weather Message
Issued by NWS Detroit/Pontiac, MI

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WHUS73 KDTX 200742
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
242 AM EST MON NOV 20 2017

...UNSETTLED MARINE WEATHER TONIGHT THROUGH TUESDAY...

.WINDS WILL REMAIN FRESH TODAY, AS THE REGION IS SANDWICHED BETWEEN
HIGH PRESSURE SLIPPING THROUGH TO THE SOUTH AND AN APPROACHING LOW
PRESSURE SYSTEM FROM THE WEST. THE CURRENT WESTERLY FLOW WILL BACK
TO SOUTHWESTERLY EARLY IN THE DAY. EXPECTATIONS ARE FOR A CORRIDOR
OF HIGHER SPEEDS EMERGING FROM SAGINAW BAY INTO THE CENTRAL BODY OF
LAKE HURON, WITH SUSTAINED WINDS INCREASING TO NEAR 30 KNOTS. NEAR
SURFACE STABILITY WILL BE INCREASING AS WARMER AIR WASHES ACROSS THE
REGION. THEREFORE, WIND GUST POTENTIAL WILL BE LIMITED TO LOWER-END
GALE GUSTS - MAINLY CONSTRAINED TO THE CENTRAL HALF OF LAKE HURON
(INCLUDING OUTER SAGINAW BAY). ELSEWHERE, THE FRESH FLOW WILL
SUPPORT SMALL CRAFT HEADLINES. IN THE WAKE OF THE SURFACE COLD FRONT
ON TUESDAY, THE FLOW WILL VEER TO NORTHWESTERLY WITH THE STRONGEST
FLOW CONFINED TO THE NORTHERN HALF OF LAKE HURON - AGAIN GUSTS IN
THE 35-40 KNOT RANGE. SIGNIFICANT WAVES ON LAKE HURON WILL PEAK
AROUND 10 FEET DURING THE GALE EVENT WITH OCCASIONAL WAVES EXCEEDING
15 FEET IN THE CENTRAL BASIN. OTHERWISE, THE NEAR SURFACE WILL
DESTABILIZE BEHIND THE COLD FRONT, REINTRODUCING LAKE-EFFECT SHOWERS
ACROSS THE ENTIRE BASIN.

LHZ463-464-200845-
/O.CAN.KDTX.GL.A.0032.171121T0000Z-171121T1800Z/
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-
242 AM EST MON NOV 20 2017

...GALE WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS CANCELLED THE
GALE WATCH.

$$

LHZ421-202115-
/O.UPG.KDTX.GL.A.0032.171121T0000Z-171121T1800Z/
/O.NEW.KDTX.GL.W.0035.171121T0000Z-171121T0900Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-
242 AM EST MON NOV 20 2017

...GALE WARNING IN EFFECT FROM 7 PM THIS EVENING TO 4 AM EST
TUESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 4 AM EST
TUESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 28 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 34
  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 12 AM EST
  TUESDAY WITH THE LARGEST WAVES EXPECTED AROUND 2 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.

&&

$$

LHZ462-202115-
/O.UPG.KDTX.GL.A.0032.171121T0000Z-171121T1800Z/
/O.NEW.KDTX.GL.W.0035.171121T0000Z-171121T0900Z/
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-
242 AM EST MON NOV 20 2017

...GALE WARNING IN EFFECT FROM 7 PM THIS EVENING TO 4 AM EST
TUESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 4 AM EST
TUESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 28 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 34
  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 2 AM EST TUESDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 3 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.

&&

$$

LHZ363-202115-
/O.UPG.KDTX.GL.A.0032.171121T0000Z-171121T1800Z/
/O.NEW.KDTX.GL.W.0035.171121T0000Z-171121T1500Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
242 AM EST MON NOV 20 2017

...GALE WARNING IN EFFECT FROM 7 PM THIS EVENING TO 10 AM EST
TUESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM EST
TUESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 31 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 38
  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 1 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.

&&

$$

LHZ362-202115-
/O.UPG.KDTX.GL.A.0032.171121T0000Z-171121T1800Z/
/O.NEW.KDTX.GL.W.0035.171121T0000Z-171122T0900Z/
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
242 AM EST MON NOV 20 2017

...GALE WARNING IN EFFECT FROM 7 PM THIS EVENING TO 4 AM EST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 4 AM EST
WEDNESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 33 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 39
  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 5 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.

&&

$$

LHZ361-202115-
/O.NEW.KDTX.GL.W.0036.171121T1500Z-171122T0300Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
242 AM EST MON NOV 20 2017

...GALE WARNING IN EFFECT FROM 10 AM TO 10 PM EST TUESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM 10 AM TO 10 PM EST TUESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 30 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 38
  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 7 PM EST TUESDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 8 PM 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.

&&

$$

LHZ422-202115-
/O.UPG.KDTX.GL.A.0032.171121T0000Z-171121T1800Z/
/O.NEW.KDTX.SC.Y.0081.171121T0000Z-171121T1500Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
242 AM EST MON NOV 20 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 10 AM
EST TUESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO
10 AM EST TUESDAY.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 26 KNOTS FROM THE SOUTHWEST WITH GUSTS
  UP TO 31 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 EST
  TUESDAY WITH THE LARGEST WAVES EXPECTED AROUND 3 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.

&&

$$

LHZ442-443-202115-
/O.NEW.KDTX.SC.Y.0081.171121T0000Z-171121T2100Z/
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-
242 AM EST MON NOV 20 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 4 PM
EST TUESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO
4 PM EST TUESDAY.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 25 KNOTS FROM THE SOUTH WITH GUSTS UP
  TO 29 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 4 AM EST TUESDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 5 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.

&&

$$

LHZ441-202115-
/O.NEW.KDTX.SC.Y.0081.171121T0000Z-171122T1800Z/
PORT AUSTIN TO HARBOR BEACH MI-
242 AM EST MON NOV 20 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 1 PM
EST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO
1 PM EST WEDNESDAY.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 26 KNOTS FROM THE SOUTHWEST WITH GUSTS
  UP TO 31 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 12 AM EST
  TUESDAY WITH THE LARGEST WAVES EXPECTED AROUND 2 AM EST
  WEDNESDAY.

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.

&&

$$

JVC


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