Marine Weather Message
Issued by NWS Detroit/Pontiac, MI

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WHUS73 KDTX 240840
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
340 AM EST FRI NOV 24 2017

...GALES ON LAKE HURON TODAY...

.GUSTY SOUTHWEST WINDS EXPECTED ACROSS THE GREAT LAKES REGION THIS
AFTERNOON AS A LOW PRESSURE SYSTEM MOVES ACROSS SOUTHERN ONTARIO.
THE SURFACE PRESSURE GRADIENT WILL STRENGTHEN AND RESULT IN
SOUTHWEST WINDS OF 25-30 KNOTS ACROSS LAKE HURON. GUSTS TO GALES
THIS AFTERNOON ARE EXPECTED ACROSS THE SAGINAW BAY AND THE OPEN
WATERS OF LAKE HURON, WITH THE EXCEPTION OF THE FAR NORTHERN PORTION
OF THE LAKE WEST OF PRESQUE ISLE. ROUGH WATERS FOR SMALL CRAFTS ARE
LIKELY ACROSS NEARSHORE FROM PORT AUSTIN TO PORT HURON, LAKE ST.
CLAIR AND WESTERN LAKE ERIE. WINDS WILL SHIFT TO THE NORTHWEST
BEHIND A COLD FRONT EARLY TOMORROW AND REMAIN ELEVATED ACROSS LAKE
HURON THROUGH LATE TOMORROW NIGHT.

LHZ422-242045-
/O.EXB.KDTX.GL.W.0037.171124T0840Z-171125T0500Z/
/O.UPG.KDTX.SC.Y.0083.171124T1200Z-171125T0900Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
340 AM EST FRI NOV 24 2017

...GALE WARNING IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT UNTIL MIDNIGHT EST TONIGHT.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 28 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 35
  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 FRIDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EST FRIDAY.

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.

&&

$$

LHZ421-242045-
/O.UPG.KDTX.SC.Y.0082.000000T0000Z-171125T1100Z/
/O.EXB.KDTX.GL.W.0037.171124T0840Z-171125T0500Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-
340 AM EST FRI NOV 24 2017

...GALE WARNING IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT UNTIL MIDNIGHT EST TONIGHT.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 28 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 37
  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 3 PM EST FRIDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 11 PM EST FRIDAY.

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.

&&

$$

LHZ362-363-242045-
/O.EXT.KDTX.GL.W.0037.171124T0840Z-171125T0500Z/
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-
340 AM EST FRI NOV 24 2017

...GALE WARNING NOW IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

THE GALE WARNING IS NOW IN EFFECT UNTIL MIDNIGHT EST TONIGHT.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 35 KNOTS FROM THE SOUTH WITH GUSTS UP TO 40
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 14 FEET
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 20 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 6 PM EST FRIDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 6 PM EST FRIDAY.

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>464-242045-
/O.CON.KDTX.GL.W.0037.171124T1700Z-171125T0500Z/
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-
340 AM EST FRI NOV 24 2017

...GALE WARNING REMAINS IN EFFECT FROM NOON TODAY TO MIDNIGHT EST
TONIGHT...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 33 KNOTS FROM THE SOUTH WITH GUSTS UP TO 37
  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 9 PM EST FRIDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 9 PM EST FRIDAY.

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.

&&

$$

LHZ441>443-242045-
/O.CON.KDTX.SC.Y.0083.171124T1200Z-171125T0900Z/
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
340 AM EST FRI NOV 24 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING
TO 4 AM EST SATURDAY...

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

&&

$$

LCZ460-LEZ444-242045-
/O.CON.KDTX.SC.Y.0083.171124T1700Z-171125T0900Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
340 AM EST FRI NOV 24 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 4 AM
EST SATURDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 23 KNOTS FROM THE SOUTH WITH GUSTS UP
  TO 25 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 8 PM EST FRIDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 9 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.

&&

$$

SC



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