Gale Warning 37, NWS Detroit, MI

366 
WHUS73 KDTX 231439
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
939 AM EST THU NOV 23 2017

...SOUTHWEST GALES ON FRIDAY...

.ACTIVE STRETCH OF WEATHER OVER THE LAKES AS A SERIES OF FRONTAL 
BOUNDARIES WORK ACROSS THE REGION. SOUTHWEST FLOW WILL BECOME 
INCREASINGLY MORE ORGANIZED TODAY AS RETURN FLOW BECOMES BETTER 
ESTABLISHED BEHIND SURFACE HIGH PRESSURE OVER THE EASTERN U.S. WHILE 
THE GUSTIEST OF THE SOUTHWEST WINDS WILL OCCUR OUT OVER THE OPEN 
WATERS OF THE LAKE HURON BASIN, WAVE HEIGHTS AND WIND GUSTS WILL 
RESPOND ENOUGH IN THE LONG SOUTHWEST FETCH TO NECESSITATE A SMALL 
CRAFT ADVISORY OVER OUTER SAGINAW BAY. A WELL ORGANIZED LOW 
PRESSURE CIRCULATION WILL THEN EMERGE OVER THE CANADIAN PRAIRIE 
PROVINCES THIS EVENING BEFORE TRACKING EASTWARD THROUGH ONTARIO 
TONIGHT. INCREASING GRADIENT AND SOUTHWESTERLY FLOW AHEAD OF THE 
FRONT FRIDAY INTO THE OVERNIGHT WILL LIKELY REACH GALE FORCE ON 
FRIDAY. A GALE WARNING HAS BEEN ISSUED FRIDAY FOR MUCH OF THE 
CENTRAL LAKE HURON BASIN. A SECONDARY COLD FRONT WILL THEN DROP 
THROUGH ON SATURDAY USHERING IN A FAIRLY COLD AIRMASS AND INCREASED 
NORTHWEST FLOW.

LHZ362-363-240245-
/O.CON.KDTX.GL.W.0037.171124T1200Z-171125T0300Z/
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-
939 AM EST THU NOV 23 2017

...GALE WARNING REMAINS IN EFFECT FROM 7 AM TO 10 PM EST FRIDAY...

* 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 15 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 22 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 2 PM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 8 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.

&&

$$

LHZ421-232100-
/O.CON.KDTX.SC.Y.0082.000000T0000Z-171123T2100Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-
939 AM EST THU NOV 23 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 20 KNOTS FROM THE SOUTHWEST WITH GUSTS 
  UP TO 26 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 2 PM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 2 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.

&&

$$

LHZ464-240245-
/O.EXA.KDTX.GL.A.0033.171124T1800Z-171125T0600Z/
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-
939 AM EST THU NOV 23 2017

...GALE WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE FRIDAY
NIGHT...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WATCH WHICH IS IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE
FRIDAY NIGHT. 

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 32 KNOTS FROM THE SOUTH WITH GUSTS UP TO 35 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 7 PM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 10 PM EST FRIDAY. 

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.

&&

$$

LHZ462-463-240245-
/O.CON.KDTX.GL.A.0033.171124T1800Z-171125T0600Z/
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-
939 AM EST THU NOV 23 2017

...GALE WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH
LATE FRIDAY NIGHT...

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 32 KNOTS FROM THE SOUTH 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 7 PM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 8 PM EST FRIDAY. 

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.

&&

$$

SF

593 
WHUS73 KDTX 232038
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
338 PM EST THU NOV 23 2017

...SOUTHWEST GALES ON FRIDAY...

.AREA LAKES WILL REMAIN UNDER GUSTY SOUTHWEST CONDITIONS THROUGH 
TONIGHT, AS RETURN FLOW STRENGTHENS BEHIND SURFACE HIGH PRESSURE 
OVER THE EASTERN U.S. WHILE THE GUSTIEST OF THE SOUTHWEST WINDS WILL 
OCCUR OUT OVER THE OPEN WATERS OF THE LAKE HURON BASIN DURING THIS 
TIME, WAVE HEIGHTS AND WIND GUSTS WILL RESPOND ENOUGH IN THE LONG 
SOUTHWEST FETCH TO NECESSITATE A SMALL CRAFT ADVISORY OVER OUTER 
SAGINAW BAY. THE GRADIENT WILL STRENGTHEN FRIDAY IN ADVANCE OF AN 
APPROACHING COLD FRONT. THIS WILL BRING SOUTHWEST WINDS OF 25 TO 30 
KNOTS ACROSS LAKE HURON. WHILE INCREASING STABILITY MAY TEND TO 
LIMIT THE OVERALL GUST POTENTIAL, THIS WILL ALLOW GUSTS TO REACH 
GALES FOR A PERIOD OVER THE OPEN WATERS. WINDS TURN WEST-NORTHWEST 
AND REMAIN STRONG AS COLDER AIR ARRIVES SATURDAY.

LHZ462>464-240915-
/O.EXB.KDTX.GL.W.0037.171124T1700Z-171125T0500Z/
/O.UPG.KDTX.GL.A.0033.171124T1800Z-171125T0600Z/
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-
338 PM EST THU NOV 23 2017

...GALE WARNING IN EFFECT FROM NOON FRIDAY TO MIDNIGHT EST FRIDAY
NIGHT...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM NOON FRIDAY TO MIDNIGHT EST
FRIDAY NIGHT. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE SOUTH WITH GUSTS UP TO 38 
  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 6 PM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 7 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.

&&

$$

LHZ362-363-240915-
/O.EXT.KDTX.GL.W.0037.171124T1200Z-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-
338 PM EST THU NOV 23 2017

...GALE WARNING NOW IN EFFECT FROM 7 AM FRIDAY TO MIDNIGHT EST
FRIDAY NIGHT...

THE GALE WARNING IS NOW IN EFFECT FROM 7 AM FRIDAY TO MIDNIGHT
EST FRIDAY NIGHT. 

* 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 14 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 20 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 2 PM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 5 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.

&&

$$

LHZ422-441>443-240915-
/O.NEW.KDTX.SC.Y.0083.171124T1200Z-171125T0900Z/
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-
338 PM EST THU NOV 23 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM FRIDAY TO 4 AM EST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY WHICH IS IN EFFECT FROM 7 AM FRIDAY TO 4 AM
EST SATURDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 29 KNOTS FROM THE SOUTH WITH GUSTS UP TO
  33 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 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 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-LEZ444-240915-
/O.NEW.KDTX.SC.Y.0083.171124T1700Z-171125T0900Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
338 PM EST THU NOV 23 2017

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

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY WHICH IS IN EFFECT FROM NOON FRIDAY TO 4 AM
EST SATURDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 25 KNOTS FROM THE SOUTH WITH GUSTS UP 
  TO 32 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 PM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 8 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.

&&

$$

LHZ421-240915-
/O.EXT.KDTX.SC.Y.0082.000000T0000Z-171125T1100Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-
338 PM EST THU NOV 23 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM EST SATURDAY...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT UNTIL 6 AM EST
SATURDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 28 KNOTS FROM THE SOUTHWEST WITH GUSTS UP
  TO 33 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 10 AM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 11 AM 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.

&&

$$

SF

045 
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

319 
WHUS73 KDTX 242009
MWWDTX

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

...GALES CONTINUING ON LAKE HURON AND SAGINAW BAY INTO TONIGHT...

.GUSTY SOUTHWEST WINDS WILL PERSIST THROUGH EARLY TONIGHT IN ADVANCE 
OF A COLD FRONT. GUSTS TO GALES WILL EXIST DURING THIS TIME FROM 
SAGINAW BAY INTO THE CENTRAL AND SOUTHERN LAKE HURON OPEN WATERS. 
WINDS TURN NORTHWESTERLY AND REMAIN BRISK IN THE WAKE OF THIS FRONT 
LATE TONIGHT AND SATURDAY. THIS WILL BRING THE POTENTIAL FOR 
ANOTHER SMALL WINDOW OF GUSTS TO NEAR GALES OVER THE NORTH HALF OF 
LAKE HURON SATURDAY AFTERNOON AND EVENING. WINDS THEN BRIEFLY EASE 
SATURDAY NIGHT AND EARLY SUNDAY UNDER PASSING HIGH PRESSURE. RENEWED 
STRENGTHENING OF SOUTHWEST WINDS IN THE WAKE OF THIS HIGH EXPECTED 
BY LATE SUNDAY, LEADING TO ANOTHER PERIOD OF GUSTS TO AT LEAST 25-30 
KNOTS.

LHZ362-363-250500-
/O.CON.KDTX.GL.W.0037.000000T0000Z-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-
309 PM EST FRI NOV 24 2017

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 32 KNOTS FROM THE SOUTH WITH GUSTS UP TO 42 
  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 3 PM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 4 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.

&&

$$

LHZ421-422-250500-
/O.CON.KDTX.GL.W.0037.000000T0000Z-171125T0500Z/
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-
309 PM EST FRI NOV 24 2017

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS
  UP TO 22 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 34 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.

&&

$$

LHZ462>464-250500-
/O.CON.KDTX.GL.W.0037.000000T0000Z-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-
309 PM EST FRI NOV 24 2017

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 28 KNOTS FROM THE SOUTH WITH GUSTS UP TO 36 
  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 4 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.

&&

$$

LHZ441>443-250500-
/O.CON.KDTX.SC.Y.0083.000000T0000Z-171125T0900Z/
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
309 PM EST FRI NOV 24 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 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 30 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 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 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-LEZ444-250500-
/O.CON.KDTX.SC.Y.0083.000000T0000Z-171125T0900Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
309 PM EST FRI NOV 24 2017

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

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 19 KNOTS FROM THE SOUTH WITH GUSTS UP 
  TO 25 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 PM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 8 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.

&&

$$

IRL

512 
WHUS73 KDTX 250313
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1013 PM EST FRI NOV 24 2017

...GALES SUBSIDE BUT GUSTY SOUTHWEST WIND LINGERS TONIGHT...

.GUSTY SOUTHWEST WINDS WILL PERSIST THROUGH TONIGHT IN ADVANCE OF
A COLD FRONT. WINDS TURN NORTHWESTERLY AND REMAIN BRISK IN THE 
WAKE OF THIS FRONT LATE TONIGHT AND SATURDAY. THIS WILL BRING THE 
POTENTIAL FOR ANOTHER SMALL WINDOW OF GUSTS TO NEAR GALES OVER THE
NORTH HALF OF LAKE HURON SATURDAY AFTERNOON AND EVENING. WINDS 
THEN BRIEFLY EASE SATURDAY NIGHT AND EARLY SUNDAY UNDER PASSING 
HIGH PRESSURE. 

LHZ421-422-250900-
/O.CAN.KDTX.GL.W.0037.000000T0000Z-171125T0500Z/
/O.EXA.KDTX.SC.Y.0083.000000T0000Z-171125T0900Z/
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-
1013 PM EST FRI NOV 24 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST SATURDAY...
...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY WHICH IS IN EFFECT UNTIL 4 AM EST SATURDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 22 KNOTS FROM THE SOUTHWEST WITH GUSTS 
  UP TO 27 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL 
  BE 5 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 7 FEET. 

* TIMING: THE MAXIMUM WINDS AND WAVES ARE EXPECTED BEFORE 
  MIDNIGHT.
  

THE GALE WARNING HAS BEEN CANCELLED. 

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.

&&

$$

LHZ362-363-462>464-250415-
/O.CAN.KDTX.GL.W.0037.000000T0000Z-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-
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-
1013 PM EST FRI NOV 24 2017

...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS CANCELLED THE
GALE WARNING. GUSTY SOUTHWEST WIND WILL CONTINUE TONIGHT BUT BELOW
GALE THRESHOLD.

$$

LHZ442-443-250900-
/O.CON.KDTX.SC.Y.0083.000000T0000Z-171125T0900Z/
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-
1013 PM EST FRI NOV 24 2017

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

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 21 KNOTS FROM THE SOUTHWEST WITH GUSTS 
  UP TO 26 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL 
  BE 5 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 7 FEET. 

* TIMING: THE MAXIMUM WINDS AND WAVES ARE EXPECTED BEFORE 
  MIDNIGHT.

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.

&&

$$

LHZ441-250900-
/O.CON.KDTX.SC.Y.0083.000000T0000Z-171125T0900Z/
PORT AUSTIN TO HARBOR BEACH MI-
1013 PM EST FRI NOV 24 2017

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

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 20 KNOTS FROM THE SOUTHWEST WITH GUSTS 
  UP TO 26 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL 
  BE 5 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 7 FEET. 

* TIMING: THE MAXIMUM WINDS AND WAVES ARE EXPECTED BEFORE
  MIDNIGHT. 

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-LEZ444-250900-
/O.CON.KDTX.SC.Y.0083.000000T0000Z-171125T0900Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
1013 PM EST FRI NOV 24 2017

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

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 19 KNOTS FROM THE SOUTHWEST WITH GUSTS UP
  TO 25 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 3
  FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 5 FEET. 

* TIMING: THE MAXIMUM WINDS AND WAVES ARE EXPECTED BEFORE
  MIDNIGHT. 

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.

&&

$$

BT

Area Forecast Discussion
National Weather Service Detroit/Pontiac MI
332 AM EST Thu Nov 23 2017

.DISCUSSION...

After bottoming out early in the mid to upper 20s, temperatures have
been steadily rising since midnight emerging southwest wind fills in
behind departing high pressure. Temps will be near 30 by sunrise.
Very little in terms of active weather for the next several days as
the storm track continues to retract further north.

A weak, moisture-starved wave with virtually no surface reflection
will support overcast mid-level clouds through midday, limiting
insolation for most of the heating period. As a result, temps will
struggle to reach 40 despite notably warmer mid-levels than
yesterday. Mid 30s possible along the glacial ridge and in the
Thumb. Strong low passing north of Lake Superior will maintain a
sufficient gradient to prevent decoupling and keep temps hovering
near 30 through tonight. 850mb temps will surge into the double
digits Friday as highs should easily reach 50 degrees in most
places. Displacement of forcing to the north and a lack of any
respectable system moisture will greatly limit prospects for precip
Friday evening. Nothing more than a low chc pop is warranted given
dry progged soundings and short-lived nature of forcing.

Temps will remain within a few degrees either side of normal through
the weekend. Global models still indicate the potential for
considerable height rises early next week. Continuity has been
shoddy at times as some solutions suggest energy may completely
cutoff over the southwest US, leading to flatter overall westerlies.
Latest solutions are trending away from this scenario, in which case
highs could be pushing 60 degrees by Tuesday.

&&

.MARINE...

Active stretch of weather over the lakes as a series of frontal
boundaries work across the region. Southwest flow will become
increasingly more organized today as return flow becomes better
established behind surface high pressure over the eastern U.S. While
the gustiest of the southwest winds will occur out over the open
waters of the Lake Huron basin, wave heights and wind gusts will
respond enough in the long southwest fetch to necessitate a small
craft advisory over outer Saginaw Bay.  A well organized low
pressure circulation will then emerge over the Canadian Prairie
provinces this evening before tracking eastward through Ontario
tonight. Increasing gradient and southwesterly flow ahead of the
front Friday into the overnight will likely reach gale force on
Friday. A gale warning has been issued Friday for much of the
central Lake Huron basin. A secondary cold front will then drop
through on Saturday ushering in a fairly cold airmass and increased
northwest flow.

&&

.PREV DISCUSSION...
Issued at 1203 AM EST Thu Nov 23 2017

AVIATION...

Low level wind backed to the south and southwest during the evening
ahead of the next low pressure system organizing over central
Canada. The southwest flow has driven low clouds out of SE Michigan
while mid and high clouds thicken ahead of the Canadian low. The end
result is VFR with some virga on radar over the terminal corridor
through the night and Thanksgiving morning. A few wind gusts near 20
knots will be possible at FNT and MBS during the afternoon as
southwest flow matures ahead of the cold front over the northern
Great Lakes. This front is expected to stall there while the
influence of high pressure over the Ohio valley returns late in the
day through Thursday night.

//DTW THRESHOLD PROBABILITIES...

* None.

PREV DISCUSSION...
Issued at 253 PM EST Wed Nov 22 2017

Discussion...

Quiet weather pattern expected for the rest of the week. While lower
stratus will erode into tonight, middle deck of clouds will thicken
as a weak shortwave races into central Great Lakes within northwest
upper flow regime. This should bring relatively steady temperatures
overnight as most area fall into the mid/upper 20s right away this
evening and then only oscillate slightly after midnight.

Southwest flow will increase in the wake the surface ridge over the
area as it settles southeast. This will begin a warming trend on
Thanksgiving as locations climb into the upper 30s to lower 40s with
a trend from mostly cloudy to partly cloudy skies throughout the day
as the aforementioned shortwave moves east of the area with time.

With generally clear skies on Thursday night, expect temperatures to
fall back into the upper 20s to around 30 during the evening as the
pressure gradient remains relatively weak through midnight. Expect
temperatures to once again remain relatively stable overnight as the
gradient tightens as deep low pressure shifts east into northwest
Ontario in response to the next strong shortwave digging out of the
Gulf of Alaska region.

This surface low, in the neighborhood of 980 mb, will approach the
Quebec border by Friday evening with southwest flow south and east
of the trailing cold front strengthening further during the day.
Gusts during the best mixing of the afternoon should reach 30 mph at
least with temperatures climbing into the upper 40s to lower 50s in
response to this warm air advection pattern. This cold front moves
southeast across the area Friday night, bringing at least a chance
of showers to the area. No snow shower activity is expected as the
temperatures will still generally be in the lower 40s during model
consensus for precipitation timing (and only fall into the upper 30s
at the coldest by early Saturday morning).

Behind the frontal passage, northwest cyclonic flow will advect
colder air across the region on Saturday with lake-effect clouds and
a few flurries/sprinkles possible throughout the day. High pressure
then builds into the region for Sunday bringing dry conditions while
highs top out near 40 as the thermal trough exits the region. As
high pressure sets up along the East Coast and low pressure develops
over the Central Plains, an increasing southwest gradient under
upper level ridging will allow warm advection to set up over the
region early next week. This will allow highs to make a run for the
low 50s both Monday and Tuesday as dry conditions continue.

MARINE...

Active stretch of weather over the lakes after high pressure slides
across the area tonight. Cold air funneling into the region with
tightening gradient ahead of a weak front will promote strengthening
southwest winds over the waters. Though gusts will stay below gale
force, a period of small crafts for a portion of Saginaw Bay will
needed. The next low pressure system will track through Ontario
Friday pulling a cold front through the Great Lakes Friday night.
Increasing gradient and southwesterly flow ahead of the front Friday
into the overnight will likely reach gale force thus a gale watch
has been issued for the majority of Lake Huron. A secondary cold
front will then drop through on Saturday ushering in a fairly cold
airmass and increased northwest flow.

&&

.DTX WATCHES/WARNINGS/ADVISORIES...
MI...NONE.
Lake Huron...Gale Watch from Friday afternoon through late Friday night for
     LHZ462-463.

     Gale Warning from 7 AM to 10 PM EST Friday for LHZ362-363.

     Small Craft Advisory until 4 PM EST this afternoon for LHZ421.

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

DISCUSSION...JVC
MARINE.......CB
AVIATION.....BT

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

Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
331 AM EST Thu Nov 23 2017

MIZ047>049-053>055-060>063-068>070-075-076-082-083-240845-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
331 AM EST Thu Nov 23 2017

This hazardous weather outlook is for portions of southeast
Michigan.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-240845-
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-
331 AM EST Thu Nov 23 2017

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

.DAY ONE...Today and Tonight

Small craft advisories are in effect. See the forecast for detail.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Gale watches and warnings are in effect. See the forecast for detail.

.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.

JVC