Gale Warning 33, NWS Detroit, MI

431 
WHUS73 KDTX 150250
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
950 PM EST TUE NOV 14 2017

...GALES EXPECTED LATE WEDNESDAY INTO THURSDAY...

.THE GALE WATCH HAS BEEN UPGRADED TO A GALE WARNING OVER THE LAKE 
HURON OPEN WATERS FOR LATE WEDNESDAY AND THURSDAY. SMALL CRAFT 
ADVISORIES WILL ALSO BE ISSUED FOR THE NEARSHORE WATERS AND LAKE 
ST CLAIR.

SOUTHERLY WINDS WILL INCREASE LATE TONIGHT INTO WEDNESDAY MORNING 
WITHIN TIGHTENING PRESSURE GRADIENT BETWEEN HIGH PRESSURE OVER THE 
NEW ENGLAND STATES AND LOW PRESSURE AND THE ATTENDING COLD FRONT 
APPROACHING THROUGH THE UPPER MIDWEST. WHILE THIS RELATIVELY MILD 
SOUTHERLY FLOW WILL LEAD TO INCREASING STABILITY, IT STILL APPEARS 
THAT WIND SPEEDS WILL REACH 20 TO 30 KNOTS OVER PARTS OF THE OPEN
WATERS BY EARLY WEDNESDAY MORNING. 

SIMILAR WIND SPEEDS CONTINUE INTO WEDNESDAY EVENING, VEERING TO THE 
SOUTHWEST AS THE AFOREMENTIONED LOW PRESSURE TRACKS TO NEAR NORTHERN 
LAKE HURON AND THE COLD FRONT SWEEPS THROUGH THE REGION. GREATER 
INSTABILITY WITHIN COLDER NORTHWEST FLOW IN THE WAKE OF THIS SYSTEM 
WILL LEAD TO A SECOND MAXIMUM IN WIND GUST POTENTIAL LATE WEDNESDAY 
NIGHT INTO THURSDAY MORNING. DURING THIS TIME FRAME, WIND GUSTS OVER 
PARTS OF THE OPEN WATERS MAY REACH 40 KNOTS.

LHZ361>363-462>464-151500-
/O.EXT.KDTX.GL.W.0033.171115T2300Z-171116T2200Z/
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-
950 PM EST TUE NOV 14 2017

...GALE WARNING NOW IN EFFECT FROM 6 PM WEDNESDAY TO 5 PM EST
THURSDAY...

THE GALE WARNING IS NOW IN EFFECT FROM 6 PM WEDNESDAY TO 5 PM EST
THURSDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 33 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 43 
  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 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 9 AM EST 
  THURSDAY. 

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-LHZ421-422-441>443-151500-
/O.EXT.KDTX.SC.Y.0078.171115T2300Z-171116T2200Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
950 PM EST TUE NOV 14 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 6 PM WEDNESDAY TO 5 PM
EST THURSDAY...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT FROM 6 PM WEDNESDAY TO
5 PM EST THURSDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 26 KNOTS FROM THE WEST 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 3 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 12 PM EST 
  THURSDAY. 

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

733 
WHUS73 KDTX 150838
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
338 AM EST WED NOV 15 2017

...SOLID NORTHWEST GALES THURSDAY MORNING...

.SOUTHERLY WINDS WILL CONTINUE TO STRENGTHEN THROUGH THE DAY AS THE 
PRESSURE GRADIENT INCREASES BETWEEN HIGH PRESSURE OVER THE 
NEW ENGLAND STATES AND LOW PRESSURE AND THE ATTENDING COLD FRONT 
APPROACHING THROUGH THE UPPER MIDWEST. THIS RELATIVELY MILD 
SOUTHERLY FLOW WILL LEAD TO INCREASING STABILITY FOR MUCH OF THE 
DAYLIGHT PERIOD, WITH GUSTS LIKELY CAPPED AT 30 KNOTS. GREATER 
POTENTIAL FOR GUSTS TO REACH GALES WILL OCCUR COINCIDENT WITH THE 
COLD FRONTAL PASSAGE TONIGHT AS WINDS SHIFT FROM WEST TO NORTHWEST. 
GREATER INSTABILITY UNDER COLDER NORTHWEST FLOW IN THE WAKE OF THIS 
SYSTEM WILL LEAD TO A MAXIMUM IN WIND GUST POTENTIAL LATE 
TONIGHT INTO THURSDAY MORNING. DURING THIS TIME FRAME, WIND 
GUSTS OVER PARTS OF THE OPEN WATERS MAY REACH 40 KNOTS. WINDS AND 
WAVES GRADUALLY EASE LATE THURSDAY AND THURSDAY NIGHT AS HIGH 
PRESSURE BUILDS INTO THE REGION.

LHZ362-363-462-152100-
/O.EXT.KDTX.GL.W.0033.171115T0838Z-171116T2200Z/
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-
338 AM EST WED NOV 15 2017

...GALE WARNING NOW IN EFFECT UNTIL 5 PM EST THURSDAY...

THE GALE WARNING IS NOW IN EFFECT UNTIL 5 PM EST THURSDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 40 
  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 7 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 12 PM EST 
  THURSDAY. 

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.

&&

$$

LHZ361-463-464-152100-
/O.CON.KDTX.GL.W.0033.171115T2300Z-171116T2200Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM 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-
338 AM EST WED NOV 15 2017

...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 5 PM
EST THURSDAY...

* 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 13 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 19 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 9 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 12 PM EST 
  THURSDAY. 

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.

&&

$$

LHZ422-152100-
/O.EXT.KDTX.SC.Y.0078.171115T0838Z-171116T2200Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
338 AM EST WED NOV 15 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 PM EST THURSDAY...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT UNTIL 5 PM EST
THURSDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 23 KNOTS FROM THE NORTHWEST WITH GUSTS 
  UP TO 31 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 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 5 PM 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.

&&

$$

LHZ421-441>443-152100-
/O.EXT.KDTX.SC.Y.0078.171115T0838Z-171117T0900Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-
338 AM EST WED NOV 15 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM EST FRIDAY...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT UNTIL 4 AM EST FRIDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 29 KNOTS FROM THE NORTHWEST WITH GUSTS 
  UP TO 36 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 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 12 PM EST 
  THURSDAY. 

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-LEZ444-152100-
/O.CON.KDTX.SC.Y.0078.171115T2300Z-171116T2200Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
338 AM EST WED NOV 15 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 5 PM EST THURSDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 20 KNOTS FROM THE WEST WITH GUSTS UP TO 
  29 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 7 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 6 PM 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.

&&

$$

SF

175 
WHUS73 KDTX 151451
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
ISSUED BY NATIONAL WEATHER SERVICE GRAND RAPIDS MI
951 AM EST WED NOV 15 2017

...SOLID NORTHWEST GALES THURSDAY MORNING...

.SOUTHERLY WINDS WILL STRENGTHEN TODAY AS THE PRESSURE GRADIENT 
INCREASES BETWEEN HIGH PRESSURE OVER THE NEW ENGLAND STATES AND 
LOW PRESSURE AND THE ATTENDING COLD FRONT APPROACHING THROUGH THE 
UPPER MIDWEST. THIS RELATIVELY MILD SOUTHERLY FLOW WILL LEAD TO 
INCREASING STABILITY FOR MUCH OF THE DAYLIGHT PERIOD, WITH GUSTS 
LIKELY CAPPED AT 30 KNOTS. GREATER POTENTIAL FOR GUSTS TO REACH 
GALES WILL OCCUR COINCIDENT WITH THE COLD FRONTAL PASSAGE TONIGHT 
AS WINDS SHIFT FROM WEST TO NORTHWEST. GREATER INSTABILITY UNDER 
COLDER NORTHWEST FLOW IN THE WAKE OF THIS SYSTEM WILL LEAD TO A 
MAXIMUM IN WIND GUST POTENTIAL LATE TONIGHT INTO THURSDAY MORNING.
DURING THIS TIME FRAME, WIND GUSTS OVER PARTS OF THE OPEN WATERS 
MAY REACH 40 KNOTS. WINDS AND WAVES GRADUALLY EASE LATE THURSDAY 
AND THURSDAY NIGHT AS HIGH PRESSURE BUILDS INTO THE REGION.

LHZ361-463-464-160300-
/O.CON.KDTX.GL.W.0033.171115T2300Z-171116T2200Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM 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-
951 AM EST WED NOV 15 2017

...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 5 PM
EST THURSDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS
  UP TO 30 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 40 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 7 AM EST THURSDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 12 PM EST THURSDAY. 

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.

&&

$$

LHZ362-363-462-160300-
/O.CON.KDTX.GL.W.0033.000000T0000Z-171116T2200Z/
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-
951 AM EST WED NOV 15 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 5 PM EST THURSDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 30 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 40 
  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 7 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 12 PM EST 
  THURSDAY. 

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.

&&

$$

LHZ422-160300-
/O.CON.KDTX.SC.Y.0078.000000T0000Z-171116T2200Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
951 AM EST WED NOV 15 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM EST
THURSDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 23 KNOTS FROM THE NORTHWEST WITH GUSTS 
  UP TO 31 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 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 5 PM 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.

&&

$$

LHZ421-441>443-160300-
/O.CON.KDTX.SC.Y.0078.000000T0000Z-171117T0900Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-
951 AM EST WED NOV 15 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST FRIDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 29 KNOTS FROM THE NORTHWEST WITH GUSTS 
  UP TO 36 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 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 12 PM EST 
  THURSDAY. 

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-LEZ444-160300-
/O.CON.KDTX.SC.Y.0078.171115T2300Z-171116T2200Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
951 AM EST WED NOV 15 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 5 PM EST THURSDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 20 KNOTS FROM THE WEST WITH GUSTS UP TO 
  30 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 3 AM EST THURSDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 6 PM 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.

&&

$$

GUEST

039 
WHUS73 KDTX 152051
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
351 PM EST WED NOV 15 2017

...NORTHWEST GALES EXPECTED OVERNIGHT INTO THURSDAY...

.SOUTHERLY WIND GUSTS UP TO 30 KNOTS WILL CONTINUE ACROSS THE 
LAKES AS LOW PRESSURE TRAVELS NORTHEAST OF MICHIGAN INTO ONTARIO.
AS THE LOW CONTINUES TO MOVE OUT OF PROXIMITY TO MICHIGAN, A COLD
FRONT WILL MOVE IN BEHIND IT, CAUSING WINDS TO VEER FROM SOUTH TO
SOUTHWESTERLY, AND EVENTUALLY WEST TO NORTHWEST BY THE LATE 
MORNING HOURS ON THURSDAY. THE ADVENT OF COOLER AIR WILL DECREASE 
STABILITY AND INCREASE THE MIXING DEPTH, ALLOWING FOR ISOLATED 
GUSTS UP TO 40 KNOTS TO BE SEEN OVER THE LAKES, MAINLY DURING THE 
MID TO LATE MORNING HOURS. BOTH WIND GUSTS AND WAVES ARE EXPECTED 
TO RELAX LATE THURSDAY INTO FRIDAY MORNING AS HIGH PRESSURE BUILDS
ACROSS THE GREAT LAKES. 

LHZ361-463-464-160900-
/O.CON.KDTX.GL.W.0033.171115T2300Z-171116T2200Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM 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-
351 PM EST WED NOV 15 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 5 PM EST THURSDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 29 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 34 
  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 9 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 1 PM EST 
  THURSDAY. 

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.

&&

$$

LHZ362-363-462-160900-
/O.CON.KDTX.GL.W.0033.000000T0000Z-171116T2200Z/
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-
351 PM EST WED NOV 15 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 5 PM EST THURSDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 37 
  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 8 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 12 PM EST 
  THURSDAY. 

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.

&&

$$

LHZ422-160900-
/O.CON.KDTX.SC.Y.0078.000000T0000Z-171116T2200Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
351 PM EST WED NOV 15 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM EST
THURSDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 24 KNOTS FROM THE WEST WITH GUSTS UP TO 
  29 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 3 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 4 AM EST 
  THURSDAY. 

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.

&&

$$

LHZ421-441>443-160900-
/O.CON.KDTX.SC.Y.0078.000000T0000Z-171117T0900Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-
351 PM EST WED NOV 15 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST FRIDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 26 KNOTS FROM THE NORTHWEST WITH GUSTS 
  UP TO 31 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 10 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 1 PM EST 
  THURSDAY. 

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-LEZ444-160900-
/O.CON.KDTX.SC.Y.0078.171115T2300Z-171116T2200Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
351 PM EST WED NOV 15 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM EST
THURSDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 21 KNOTS FROM THE WEST WITH GUSTS UP TO 
  26 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 8 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 6 PM 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.

&&

$$

RBP

275 
WHUS73 KDTX 160828
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
328 AM EST THU NOV 16 2017

...NORTHWEST GALES TODAY...

.ROUGH BOATING CONDITIONS WILL EXIST TODAY AS OVERLAKE INSTABILITY 
INCREASES UNDER COLD NORTHWEST FLOW. THE STRONGEST NORTHWEST WINDS 
WILL EXIST THIS MORNING, WHERE WINDS OF 25 TO 30 KNOTS WILL GUST UP 
TO 40 KNOTS AT TIMES ACROSS THE LKE HURON OPEN WATERS. THIS WILL 
RESULT IN A PERIOD OF MAXIMUM WAVE HEIGHTS IN EXCESS OF 10 FEET OVER 
THE CENTRAL AND SOUTHERN LAKE HURON BASIN. A PROLONGED PERIOD OF 
SMALL CRAFT CONDITIONS FOR THE NEAR SHORE WATERS AS HIGHER WAVE 
ACTION CONTINUES THROUGH TONIGHT. DIMINISHING WINDS LATE TODAY AND 
TONIGHT AS HIGH PRESSURE BUILDS INTO THE REGION WITH BRING A 
CORRESPONDING DROP IN WAVE HEIGHTS BY FRIDAY. WINDS THEN BECOME 
SOUTHERLY AND STRENGTHEN LATE FRIDAY AND FRIDAY NIGHT IN ADVANCE OF 
AN APPROACHING LOW PRESSURE SYSTEM. A MODEST DEGREE OF STABILITY 
UNDER THIS PATTERN WILL RESTRICT PEAK WIND GUSTS TO AROUND 30 KNOTS 
DURING THIS TIME. A PERIOD OF WEAKER WINDS ON SATURDAY AS THE LOW 
TRACKS THROUGH, BEFORE RAPIDLY STRENGTHENING SATURDAY NIGHT AS 
COLDER AIR RETURNS. AN INCREASING POTENTIAL FOR GALES EXISTS 
SATURDAY NIGHT AND SUNDAY, POSSIBLY REACHING HIGH END WITH GUSTS 
NEAR 45 KNOTS.

LHZ361-463-464-162100-
/O.CON.KDTX.GL.W.0033.000000T0000Z-171116T2200Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM 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-
328 AM EST THU NOV 16 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 5 PM EST THIS AFTERNOON...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 29 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 35 
  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 9 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 1 PM EST 
  THURSDAY. 

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.

&&

$$

LHZ362-363-462-162100-
/O.CON.KDTX.GL.W.0033.000000T0000Z-171116T2200Z/
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-
328 AM EST THU NOV 16 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 5 PM EST THIS AFTERNOON...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 30 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 36 
  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 8 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 12 PM EST 
  THURSDAY. 

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.

&&

$$

LHZ422-162100-
/O.CON.KDTX.SC.Y.0078.000000T0000Z-171116T2200Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
328 AM EST THU NOV 16 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM EST THIS
AFTERNOON...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 25 KNOTS FROM THE WEST WITH GUSTS UP TO 
  29 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 3 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 5 AM EST 
  THURSDAY. 

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.

&&

$$

LHZ421-441>443-162100-
/O.CON.KDTX.SC.Y.0078.000000T0000Z-171117T0900Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-
328 AM EST THU NOV 16 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST FRIDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 30 KNOTS FROM THE WEST WITH GUSTS UP TO 
  34 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 3 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 1 PM EST 
  THURSDAY. 

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-LEZ444-162100-
/O.CON.KDTX.SC.Y.0078.000000T0000Z-171116T2200Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
328 AM EST THU NOV 16 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM EST THIS
AFTERNOON...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 21 KNOTS FROM THE WEST WITH GUSTS UP TO 
  27 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 8 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 3 AM EST 
  THURSDAY. 

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

611 
WHUS73 KDTX 162115
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
415 PM EST THU NOV 16 2017

...GUSTY WIND AND HIGH WAVES LINGER TONIGHT...

.WINDS THROUGH THE NIGHT WILL REMAIN AROUND 20-25 KNOTS AND GUSTS
AROUND 30 KNOTS. CANNOT RULE OUT OCCASIONAL GUSTS TO LOW END 
GALES IN THE OPEN WATERS OF LAKE HURON. STRONGEST WINDS WILL 
BEGIN TO DECREASE THIS EVENING, THOUGH ROUGH BOATING CONDITIONS 
ALONG THE NEAR SHORES WILL KEEP SMALL CRAFT ADVISORIES IN THE 
OUTER SAGINAW BAY AND AROUND THE THUMB INTO THE EARLY OVERNIGHT 
HOURS. HIGH PRESSURE PASSING THROUGH THE REGION WILL HELP BRING A 
PERIOD OF LIGHTER WINDS AND LOWER WAVE HEIGHTS FOR THE EARLY PART 
OF TOMORROW BEFORE THE NEXT SYSTEM IMPACTS THE GREAT LAKES. 

TIGHTENING PRESSURE GRADIENT FRIDAY EVENING AHEAD OF AN APPROACHING 
LOW PRESSURE SYSTEM WILL INCREASE WINDS TO AROUND 20-25 KNOTS WITH 
GUSTS TO AROUND 30 KNOTS. THE WINDS WILL INCREASE RAPIDLY AFTER THE 
LOW PRESSURE SYSTEM STRENGTHENS MOVING INTO THE EASTERN GREAT LAKES 
BY SATURDAY AFTERNOON AND COLD AIR SURGES INTO THE REGION. WINDS 
WILL BE OUT OF THE NORTHWEST AT 25 TO KNOTS AND THERE WILL BE A 
LIKELIHOOD OF GALES LATE SATURDAY AFTERNOON THROUGH SUNDAY. THERE IS 
INCREASING POTENTIAL THAT SOME OF THESE GALES WILL BE ON THE HIGH 
END AROUND 45 KNOTS. WAVE HEIGHTS LATE SATURDAY NIGHT AND EARLY 
SUNDAY HAVE POTENTIAL TO REACH UPWARDS OF 12 FEET IN THE OPEN WATERS 
OF LAKE HURON.

LHZ361>363-462>464-170915-
/O.CAN.KDTX.GL.W.0033.000000T0000Z-171116T2200Z/
/O.NEW.KDTX.GL.A.0030.171119T0000Z-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-
415 PM EST THU NOV 16 2017

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH SUNDAY
EVENING...
...GALE WARNING IS CANCELLED...

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

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 32 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 11 PM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 2 AM EST 
  SUNDAY. 

THE GALE WARNING HAS BEEN CANCELLED. 

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.

&&

$$

LCZ460-LEZ444-LHZ422-162215-
/O.CAN.KDTX.SC.Y.0078.000000T0000Z-171116T2200Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
415 PM EST THU NOV 16 2017

...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS CANCELLED THE
SMALL CRAFT ADVISORY. 

$$

LHZ421-441>443-170915-
/O.CON.KDTX.SC.Y.0078.000000T0000Z-171117T0900Z/
/O.NEW.KDTX.GL.A.0030.171119T0000Z-171120T0000Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-
415 PM EST THU NOV 16 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST FRIDAY...
...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH SUNDAY
EVENING...

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

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 29 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 39 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 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 12 AM EST 
  SUNDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 24 KNOTS FROM THE NORTHWEST WITH GUSTS 
  UP TO 30 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 4 PM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 4 PM EST 
  THURSDAY. 

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.

&&

$$

BT

Area Forecast Discussion
National Weather Service Detroit/Pontiac MI
1152 AM EST Tue Nov 14 2017

.AVIATION...

Overcast stratus layer with cigs roughly 1500 feet will be lifting
north of KMBS by 17z-18z with just scattered to broken strato-cu
filling in south of this area as low level moisture mixes up to a
relatively strong low level inversion around 2kft. Any broken MVFR
cigs this afternoon will fade this evening with VFR conditions then
the rule into Wednesday morning. Conditions worsen quickly midday
Wednesday as area of rain overspreads lower Michigan in advance of
approaching cold front. Timing seems roughly 14-16z KMBS to 18z or
so KYIP/KDTW/KDET. Guidance suggests lower MVFR/IFR to perhaps LIFR
ceilings with this moisture which seems reasonable given the area of
stratus currently poised over large chunk of the CONUS from about
the Mississippi River west into the plains.

For DTW...Scattered strato-cu near 2000 feet expected this afternoon
with a few periods of broken coverage. Otherwise, main weather holds
off until rain/low ceilings spread into terminal by roughly 18z in
advance of cold front.

//DTW THRESHOLD PROBABILITIES...

* Low for ceilings below 5kft this afternoon.

* High for ceilings below 5kft Wednesday afternoon.

* High precipitation will fall as all rain Wednesday afternoon.

&&

.PREV DISCUSSION...
Issued at 1015 AM EST Tue Nov 14 2017

UPDATE...

As of 1015 AM EST...Lingering stratus that had blanketed southeast
Michigan since yesterday has finally eroded across most areas, with
the exception being near the Tri-Cities where it continues to hold
on. Stratus will continue to diminish into the early afternoon,
although a few pockets of it will still be possible with lingering
boundary layer moisture trapped under the gradually eroding
subsidence inversion. Heading into the afternoon, dry weather will
prevail as low-level warm air advection continues amidst a generally
light southwest flow. High temperatures will reach well into the mid
40s, with upper 40s and possible 50 degree readings possible south of
I-96. Minor updates to account for latest trends in observations and
sky cover, otherwise current forecast on track.

PREV DISCUSSION...
Issued at 240 AM EST Tue Nov 14 2017

DISCUSSION...

Surface ridging with just enough low level drying this morning to
allow for partial clearing of the low clouds.  Light fog has also
developed in spots, but another round of mid/high clouds attempting
to work in from the northwest may be enough to prevent dense fog,
along with the lingering areas of low stratus around. Will continue
to monitor trends.

Continued drying looks to be occuring today as low level warm
advection ramps up, and continues into tonight. 925/850 MB temps
look to be both reaching around 5 C by 12z Wednesday. Yesterday's
highs reached in the lower 40s with clouds, today temperatures
should have no problem making it into mid 40s with the increasing
southerly flow and developing sunshine, and probably even a few
upper 40s.

Consolidating upper level PV/strengthening upper level trough
impacting the Great Lakes Region Wednesday-Wednesday Night. Cold
front to track through during the afternoon, with good
dynamics/forcing to support showers/pops near 100 percent. In
agreement with SPC day 2 outlook, don't think we will see any
thunderstorms as it appears to be too stable with showalter index
only falling to 3-4 C over southeast Michigan. Exception could be
over relatively warm waters of Lake Huron. Good shot of cold air
behind the front, as 850 mb temps drop to between -5 to -7 C by
Thursday morning. With the shortwave trough axis/700 MB cold pool of
-11 C tracking through late Wednesday Night, Lake Enhanced snow
 showers are possible, but boundary layer/surface temps still could
 be just warm enough for rain showers if any activity does in fact
 develop. Solid overcast on Thursday likely holding maxes around 40
 degrees with cold northwest flow, trending northerly.

Pronounced ridging at all levels to build into the Central Great
Lakes Thursday night. The trend for Friday and into the weekend is
to maintain upper level split flow a bit longer, with phasing and
rapidly deepening low taking a bit longer to get going, and thus the
strong low is more progressive and farther east for the second half
of the weekend, already over Quebec by Sunday morning. None-the-
less, better dynamics/moisture and instability with the cold front
Friday night-Saturday morning (compared to Wednesday), and will add
chance of thunderstorms for this period. Still plenty cold enough
for possible snow showers on Sunday, as 850 mb temps dip to around
-10 C/per euro vs -14 C/per GFS, with brisk northwest winds in
place.

MARINE...

A modest southwest wind this morning under lingering high pressure
will strengthen through the afternoon and evening as this high exits
to the east. Winds through the daylight period will remain at 20
knots or less. Winds will peak from the south to southwest tonight
and Wednesday as a cold front approaches the region. Winds
strengthen to 20 to 30 knots during this time, with waves reaching 8
to 10 feet. While a higher degree of stability will limit the gust
potential, this will bring the possibility for a period of low end
gales for central portions of Lake Huron early Wednesday.  A gale
watch is now in effect.  A period of showers will be likely as the
cold front pushes through on Wednesday before winds shift to the
west on Wednesday evening. Moderate northwest winds of 15 to 25
knots will then develop in the post-frontal environment Wednesday
night into Thursday allowing waves to grow to 6 to 8 feet across
southern Lake Huron on Thursday. This may lead to another short
period of low end gales across the Lake Huron open waters late
Wednesday night, with small craft advisory conditions likely for the
nearshore waters of Lake Huron on Thursday.

&&

.DTX WATCHES/WARNINGS/ADVISORIES...
MI...NONE.
Lake Huron...Gale Watch from late tonight through Thursday afternoon for LHZ362-
     363-462-463.

Lake St Clair...NONE.
Michigan waters of Lake Erie...NONE.
&&

AVIATION.....DG
UPDATE.......IRL
DISCUSSION...SF
MARINE.......MR
HYDROLOGY....MR

You can obtain your latest National Weather Service forecasts online
at www.weather.gov/detroit.

Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
329 AM EST Tue Nov 14 2017

MIZ047>049-053>055-060>063-068>070-075-076-082-083-150900-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
329 AM EST Tue Nov 14 2017

This hazardous weather outlook is for southeast Michigan.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

There is a chance of thunderstorms Friday Night into Saturday
Morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-150900-
Lake St Clair-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
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-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw
Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
Port Austin to Harbor Beach MI-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-
329 AM EST Tue Nov 14 2017

This hazardous weather outlook is for portions of Lake Erie, Lake
Huron and Lake St Clair.

.DAY ONE...Today and Tonight

Gale watch for most of Lake Huron late tonight through Thursday
afternoon. Refer to latest marine forecast for details.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Gale watch for most of Lake Huron Wednesday through Thursday
afternoon. Refer to latest marine forecast for details.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

You can obtain your latest National Weather Service forecasts online
at www.weather.gov/detroit.

SF