Marine Weather Message
Issued by NWS Detroit/Pontiac, MI

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000
WHUS73 KDTX 172037
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
337 PM EST FRI NOV 17 2017

...STRONG GALES SATURDAY NIGHT AND SUNDAY...

.WIND WILL BE THE PRIMARY MARINE WEATHER CONCERN TONIGHT THROUGH THE
WEEKEND HIGHLIGHTED BY HIGH END GALES ON LAKE HURON SATURDAY NIGHT.
MODERATE SOUTHERLY WIND WILL CONTINUE TONIGHT AHEAD OF THE
RESPONSIBLE LOW PRESSURE SYSTEM ORGANIZING OVER THE PLAINS. SMALL
CRAFT ADVISORIES CONTINUE FOR THE LAKE HURON SHORELINE WHERE WAVES
WILL BE ELEVATED DUE TO AN ONSHORE WIND COMPONENT THERE. THE GALES
ARE EXPECTED TO DEVELOP AS THE PLAINS LOW PRESSURE MOVES INTO LOWER
MICHIGAN SATURDAY ON A TRACK NEAR THE WEST END OF LAKE ERIE. IT WILL
THEN STRENGTHEN CONSIDERABLY OVER LAKE ONTARIO SATURDAY NIGHT AND
PRODUCE STRONG NORTHERLY GALES OVER LAKE HURON WHERE GUSTS NEAR 45
KNOTS WILL BE POSSIBLE PRODUCING SIGNIFICANT WAVES OF 10-14 FEET AND
MAX WAVES AROUND 20 FEET OVER THE SOUTH THIRD OF THE LAKE. GALES
WILL BE LOWER END INTENSITY OVER MARINE AREAS CLOSER TO LAND SUCH AS
INNER SAGINAW BAY, LAKE ST CLAIR, AND THE MICHIGAN WATERS OF LAKE
ERIE. GALE WARNINGS ARE NOW IN EFFECT FOR ALL MARINE AREAS THROUGH
SUNDAY. THE SYSTEM WILL OTHERWISE PRODUCE WIDESPREAD RAIN SHOWERS
TONIGHT THROUGH SATURDAY AND POSSIBLY A RAIN/SNOW MIX BEFORE ENDING
SATURDAY NIGHT.

LCZ460-LEZ444-180930-
/O.UPG.KDTX.GL.A.0031.171119T0000Z-171119T0900Z/
/O.EXB.KDTX.GL.W.0034.171119T0000Z-171119T1500Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
337 PM EST FRI NOV 17 2017

...GALE WARNING IN EFFECT FROM 7 PM SATURDAY TO 10 AM EST
SUNDAY...

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS
  UP TO 25 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 37 KNOTS. THE
  LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 3 FEET WITH A
  POTENTIAL MAXIMUM WAVE HEIGHT OF 5 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 11 PM EST
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 1 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.

&&

$$

LHZ422-180930-
/O.UPG.KDTX.GL.A.0031.171119T0000Z-171119T0900Z/
/O.EXA.KDTX.GL.W.0034.171119T0000Z-171119T1200Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
337 PM EST FRI NOV 17 2017

...GALE WARNING IN EFFECT FROM 7 PM SATURDAY TO 7 AM EST SUNDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM 7 PM SATURDAY TO 7 AM EST SUNDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS
  UP TO 24 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 35 KNOTS. THE
  LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 4 FEET WITH A
  POTENTIAL MAXIMUM WAVE HEIGHT OF 6 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 10 PM EST SATURDAY
  WITH THE LARGEST WAVES EXPECTED AROUND MIDNIGHT 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.

&&

$$

LHZ441>443-180930-
/O.CON.KDTX.SC.Y.0079.000000T0000Z-171118T0900Z/
/O.EXT.KDTX.GL.W.0034.171119T0000Z-171119T1500Z/
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
337 PM EST FRI NOV 17 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SATURDAY...
...GALE WARNING NOW IN EFFECT FROM 7 PM SATURDAY TO 10 AM EST
SUNDAY...

THE GALE WARNING IS NOW IN EFFECT FROM 7 PM SATURDAY TO 10 AM EST
SUNDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 32 KNOTS FROM THE NORTH WITH GUSTS UP TO 42
  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 11 PM EST
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 2 AM EST
  SUNDAY.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 22 KNOTS FROM THE SOUTH WITH GUSTS UP TO
  30 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 11 PM EST FRIDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 1 AM EST SATURDAY.

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 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.

&&

$$

LHZ421-180930-
/O.EXT.KDTX.GL.W.0034.171119T0000Z-171119T1500Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-
337 PM EST FRI NOV 17 2017

...GALE WARNING NOW IN EFFECT FROM 7 PM SATURDAY TO 10 AM EST
SUNDAY...

THE GALE WARNING IS NOW IN EFFECT FROM 7 PM SATURDAY TO 10 AM EST
SUNDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 32 KNOTS FROM THE NORTH WITH GUSTS UP TO 39
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 12 FEET
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 17 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 11 PM EST
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 1 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.

&&

$$

LHZ361>363-462>464-180930-
/O.CON.KDTX.GL.W.0034.171118T2000Z-171120T0000Z/
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-
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-
337 PM EST FRI NOV 17 2017

...GALE WARNING REMAINS IN EFFECT FROM 3 PM SATURDAY TO 7 PM EST
SUNDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS
  UP TO 36 KNOTS FROM THE NORTH WITH GUSTS UP TO 43 KNOTS. THE
  LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 17 FEET WITH A
  POTENTIAL MAXIMUM WAVE HEIGHT OF 23 FEET. THE HIGHEST WAVES WILL
  BE OVER THE CENTRAL AND SOUTH SECTIONS OF THE LAKE DUE TO THE
  NORTHERLY DIRECTION.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 12 AM EST SUNDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 4 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.

&&

$$

BT



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