Gale Warning 42, NWS Detroit, MI

693 
WHUS73 KDTX 111914
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
214 PM EST MON DEC 11 2017

...STRONG NORTHWEST GALES...HAZARDOUS WAVES...AND HEAVY FREEZING
SPRAY...

.A STRONG COLD FRONT WILL TRANSIT THE WATERS LATE TONIGHT. STRONG 
NORTHWEST GALES WILL DEVELOP WITH GUSTS APPROACHING OR BRIEFLY 
REACHING STORM-FORCE OVER THE EXPOSED NEARSHORE WATERS OF THE THUMB 
AND THE OPEN WATERS OF CENTRAL AND SOUTHERN LAKE HURON. GALE 
WARNINGS ARE NOW IN EFFECT FOR ALL MARINE ZONES. TEMPERATURES 
FALLING THROUGH THE 20S INTO THE TEENS AND SIGNIFICANT WAVE HEIGHTS 
OF 10 TO 15 FEET ALSO WARRANT ISSUANCE OF A HEAVY FREEZING SPRAY 
WARNING. MAXIMUM WAVE HEIGHTS WILL EASILY EXCEED 25 FEET.

LHZ362-363-462>464-120915-
/O.EXT.KDTX.GL.W.0042.171212T0600Z-171213T1000Z/
/O.NEW.KDTX.UP.W.0001.171212T1200Z-171213T0900Z/
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-
214 PM EST MON DEC 11 2017

...GALE WARNING NOW IN EFFECT FROM 1 AM TUESDAY TO 5 AM EST
WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 AM TUESDAY TO
4 AM EST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
HEAVY FREEZING SPRAY WARNING WHICH IS IN EFFECT FROM 7 AM TUESDAY
TO 4 AM EST WEDNESDAY. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 7 AM TUESDAY TO 4 AM 
  EST WEDNESDAY. 

THE GALE WARNING IS NOW IN EFFECT FROM 1 AM TUESDAY TO 5 AM EST
WEDNESDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 38 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 47 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 16 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 23 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 8 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 11 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

LHZ421-441>443-120915-
/O.CON.KDTX.GL.W.0042.171212T0900Z-171213T0900Z/
/O.NEW.KDTX.UP.W.0001.171212T1200Z-171213T0900Z/
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-
214 PM EST MON DEC 11 2017

...GALE WARNING REMAINS IN EFFECT FROM 4 AM TUESDAY TO 4 AM EST
WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 AM TUESDAY TO
4 AM EST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
HEAVY FREEZING SPRAY WARNING WHICH IS IN EFFECT FROM 7 AM TUESDAY
TO 4 AM EST WEDNESDAY. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 7 AM TUESDAY TO 4 AM 
  EST WEDNESDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 36 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 47 
  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 8 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 11 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

LHZ361-120915-
/O.CON.KDTX.GL.W.0042.171212T0600Z-171213T0400Z/
/O.NEW.KDTX.UP.W.0001.171212T1200Z-171213T0900Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
214 PM EST MON DEC 11 2017

...GALE WARNING REMAINS IN EFFECT FROM 1 AM TO 11 PM EST
TUESDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 AM TUESDAY TO
4 AM EST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
HEAVY FREEZING SPRAY WARNING WHICH IS IN EFFECT FROM 7 AM TUESDAY
TO 4 AM EST WEDNESDAY. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 7 AM TUESDAY TO 4 AM 
  EST WEDNESDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE NORTH WITH GUSTS UP TO 42 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 9 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 13 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 7 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 8 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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-LEZ444-120915-
/O.UPG.KDTX.SC.Y.0094.171212T0800Z-171213T0400Z/
/O.EXA.KDTX.GL.W.0042.171212T0900Z-171212T2100Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
214 PM EST MON DEC 11 2017

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

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 27 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 36 
  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 TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 8 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

LHZ422-120915-
/O.CON.KDTX.GL.W.0042.171212T0900Z-171212T2100Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
214 PM EST MON DEC 11 2017

...GALE WARNING REMAINS IN EFFECT FROM 4 AM TO 4 PM EST TUESDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 41 
  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 6 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 6 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

JVC

483 
WHUS73 KDTX 112048
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
348 PM EST MON DEC 11 2017

...STRONG NORTHWEST GALES...HAZARDOUS WAVES...AND HEAVY FREEZING
SPRAY...

.A STRONG COLD FRONT WILL TRANSIT THE WATERS LATE TONIGHT. STRONG 
NORTHWEST GALES WILL DEVELOP WITH GUSTS APPROACHING OR BRIEFLY 
REACHING STORM-FORCE OVER THE EXPOSED NEARSHORE WATERS OF THE THUMB 
AND THE OPEN WATERS OF CENTRAL AND SOUTHERN LAKE HURON. GALE 
WARNINGS ARE NOW IN EFFECT FOR ALL MARINE ZONES. TEMPERATURES 
FALLING THROUGH THE 20S INTO THE TEENS AND SIGNIFICANT WAVE HEIGHTS 
OF 10 TO 15 FEET ALSO WARRANT ISSUANCE OF A HEAVY FREEZING SPRAY 
WARNING. MAXIMUM WAVE HEIGHTS WILL EASILY EXCEED 25 FEET.

LHZ362-363-462>464-120915-
/O.CON.KDTX.GL.W.0042.171212T0600Z-171213T1000Z/
/O.CON.KDTX.UP.W.0001.171212T1200Z-171213T0900Z/
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-
348 PM EST MON DEC 11 2017

...GALE WARNING REMAINS IN EFFECT FROM 1 AM TUESDAY TO 5 AM EST
WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 7 AM
TUESDAY TO 4 AM EST WEDNESDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 38 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 47 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 16 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 23 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 8 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 11 AM EST TUESDAY. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 7 AM TUESDAY TO 4 AM 
  EST WEDNESDAY.

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 HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

&&

$$

LHZ421-441>443-120915-
/O.CON.KDTX.GL.W.0042.171212T0900Z-171213T0900Z/
/O.CON.KDTX.UP.W.0001.171212T1200Z-171213T0900Z/
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-
348 PM EST MON DEC 11 2017

...GALE WARNING REMAINS IN EFFECT FROM 4 AM TUESDAY TO 4 AM EST
WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 7 AM
TUESDAY TO 4 AM EST WEDNESDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 36 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 47 
  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 8 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 11 AM EST TUESDAY. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 7 AM TUESDAY TO 4 AM 
  EST WEDNESDAY.

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 HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

&&

$$

LHZ361-120915-
/O.CON.KDTX.GL.W.0042.171212T0600Z-171213T0400Z/
/O.CON.KDTX.UP.W.0001.171212T1200Z-171213T0900Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
348 PM EST MON DEC 11 2017

...GALE WARNING REMAINS IN EFFECT FROM 1 AM TO 11 PM EST
TUESDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 7 AM
TUESDAY TO 4 AM EST WEDNESDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE NORTH WITH GUSTS UP TO 42 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 9 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 13 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 7 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 8 AM EST TUESDAY. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 7 AM TUESDAY TO 4 AM 
  EST WEDNESDAY.

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 HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

&&

$$

LHZ422-120915-
/O.CON.KDTX.GL.W.0042.171212T0900Z-171212T2100Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
348 PM EST MON DEC 11 2017

...GALE WARNING REMAINS IN EFFECT FROM 4 AM TO 4 PM EST TUESDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 41 
  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 6 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 6 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

LCZ460-LEZ444-120915-
/O.CON.KDTX.GL.W.0042.171212T0900Z-171212T2100Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
348 PM EST MON DEC 11 2017

...GALE WARNING REMAINS IN EFFECT FROM 4 AM TO 4 PM EST TUESDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 27 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 36 
  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 TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 8 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

JVC

698 
WHUS73 KDTX 120824
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
324 AM EST TUE DEC 12 2017

...STRONG NORTHWEST GALES...HAZARDOUS WAVES...AND HEAVY FREEZING
SPRAY...

.STRONG NORTHWEST GALES WILL PERSIST TODAY WITH GUSTS APPROACHING 
STORM FORCE OVER THE EXPOSED NEARSHORE WATERS OF THE THUMB AND THE 
OPEN WATERS OF CENTRAL AND SOUTHERN LAKE HURON. GALE WARNINGS 
WILL REMAIN IN EFFECT INTO TONIGHT BEFORE WINDS SUBSIDE BY EARLY 
WEDNESDAY MORNING. HEAVY FREEZING SPRAY WARNING WILL REMAIN IN PLACE 
AS WELL AS TEMPERATURES FALL INTO THE TEENS AND SIGNIFICANT WAVE 
HEIGHTS RANGE BETWEEN 10 TO 15 FEET. MAXIMUM WAVE HEIGHTS WILL 
EXCEED 20 FEET.

LHZ362-363-462>464-122115-
/O.EXT.KDTX.UP.W.0001.171212T0824Z-171213T0900Z/
/O.CON.KDTX.GL.W.0042.000000T0000Z-171213T1000Z/
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-
324 AM EST TUE DEC 12 2017

...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT UNTIL 4 AM EST
WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT UNTIL 5 AM EST WEDNESDAY...

THE HEAVY FREEZING SPRAY WARNING IS NOW IN EFFECT UNTIL 4 AM EST
WEDNESDAY. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 4 AM EST WEDNESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 39 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 47 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 16 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 23 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 6 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 9 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

LHZ421-441>443-122115-
/O.EXT.KDTX.GL.W.0042.171212T0824Z-171213T0900Z/
/O.EXT.KDTX.UP.W.0001.171212T0824Z-171213T0900Z/
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-
324 AM EST TUE DEC 12 2017

...GALE WARNING NOW IN EFFECT UNTIL 4 AM EST WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT UNTIL 4 AM EST
WEDNESDAY...

THE HEAVY FREEZING SPRAY WARNING IS NOW IN EFFECT UNTIL 4 AM EST
WEDNESDAY. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 4 AM EST WEDNESDAY.

THE GALE WARNING IS NOW IN EFFECT UNTIL 4 AM EST WEDNESDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 34 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 43 
  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 TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 10 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

LHZ361-122115-
/O.EXT.KDTX.UP.W.0001.171212T0824Z-171213T0900Z/
/O.CON.KDTX.GL.W.0042.000000T0000Z-171213T0400Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
324 AM EST TUE DEC 12 2017

...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT UNTIL 4 AM EST
WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING...

THE HEAVY FREEZING SPRAY WARNING IS NOW IN EFFECT UNTIL 4 AM EST
WEDNESDAY. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 4 AM EST WEDNESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 38 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 9 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 13 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 4 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 6 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

LHZ422-122100-
/O.EXT.KDTX.GL.W.0042.171212T0824Z-171212T2100Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
324 AM EST TUE DEC 12 2017

...GALE WARNING NOW IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

THE GALE WARNING IS NOW IN EFFECT UNTIL 4 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 39 
  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 6 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 7 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

LEZ444-122100-
/O.EXT.KDTX.GL.W.0042.171212T0824Z-171212T2100Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
324 AM EST TUE DEC 12 2017

...GALE WARNING NOW IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

THE GALE WARNING IS NOW IN EFFECT UNTIL 4 PM EST THIS AFTERNOON. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS
  UP TO 26 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 35 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 TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 9 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

LCZ460-122115-
/O.EXT.KDTX.GL.W.0042.171212T0824Z-171213T0500Z/
LAKE ST CLAIR-
324 AM EST TUE DEC 12 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 29 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 36 
  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 7 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 8 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

SF

433 
WHUS73 KDTX 121501
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1001 AM EST TUE DEC 12 2017

...STRONG NORTHWEST GALES...HAZARDOUS WAVES...AND HEAVY FREEZING
SPRAY CONTINUES TODAY INTO TONIGHT...

.STRONG NORTHWEST GALES WILL PERSIST TODAY WITH GUSTS APPROACHING 
STORM FORCE OVER THE EXPOSED NEARSHORE WATERS OF THE THUMB AND THE 
OPEN WATERS OF CENTRAL AND SOUTHERN LAKE HURON. GALE WARNINGS 
WILL REMAIN IN EFFECT INTO TONIGHT BEFORE WINDS SUBSIDE BY EARLY 
WEDNESDAY MORNING. HEAVY FREEZING SPRAY WARNING WILL REMAIN IN PLACE 
AS WELL AS TEMPERATURES FALL INTO THE TEENS AND SIGNIFICANT WAVE 
HEIGHTS RANGE BETWEEN 10 TO 15 FEET. MAXIMUM WAVE HEIGHTS WILL 
EXCEED 20 FEET.

LHZ362-363-462>464-122145-
/O.CON.KDTX.GL.W.0042.000000T0000Z-171213T1000Z/
/O.CON.KDTX.UP.W.0001.000000T0000Z-171213T0900Z/
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-
1001 AM EST TUE DEC 12 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 5 AM EST WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 AM EST
WEDNESDAY...

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 4 AM EST WEDNESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 36 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 45 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 16 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 23 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 12 PM EST 
  TUESDAY WITH THE LARGEST WAVES EXPECTED AROUND 10 AM EST 
  TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

LHZ421-441>443-122145-
/O.CON.KDTX.GL.W.0042.000000T0000Z-171213T0900Z/
/O.CON.KDTX.UP.W.0001.000000T0000Z-171213T0900Z/
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-
1001 AM EST TUE DEC 12 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 AM EST
WEDNESDAY...

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 4 AM EST WEDNESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 41 
  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 12 PM EST 
  TUESDAY WITH THE LARGEST WAVES EXPECTED AROUND 10 AM EST 
  TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

LHZ361-122145-
/O.CON.KDTX.GL.W.0042.000000T0000Z-171213T0400Z/
/O.CON.KDTX.UP.W.0001.000000T0000Z-171213T0900Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
1001 AM EST TUE DEC 12 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 AM EST
WEDNESDAY...

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 4 AM EST WEDNESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS
  UP TO 30 KNOTS FROM THE NORTH 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 9 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 9 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

LHZ422-122100-
/O.CON.KDTX.GL.W.0042.000000T0000Z-171212T2100Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
1001 AM EST TUE DEC 12 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 28 KNOTS FROM THE NORTHWEST 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 9 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 9 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

LEZ444-122100-
/O.CON.KDTX.GL.W.0042.000000T0000Z-171212T2100Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
1001 AM EST TUE DEC 12 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 25 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 34 
  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 9 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 9 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

LCZ460-122145-
/O.CON.KDTX.GL.W.0042.000000T0000Z-171213T0500Z/
LAKE ST CLAIR-
1001 AM EST TUE DEC 12 2017

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 27 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 5 FEET. 

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

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

IRL

177 
WHUS73 KDTX 122016
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
316 PM EST TUE DEC 12 2017

...GALES WILL SUBSIDE THROUGH TONIGHT.

.STRONG NORTHWEST GALES WILL GRADUALLY SUBSIDE BY WEDNESDAY MORNING. 
IN THE MEAN TIME, HEAVY FREEZING SPRAY WILL CONTINUE WITH THE GALES. 
A STORM SYSTEM WILL BRING MODERATE SNOW FROM ACROSS SOUTHERN LAKE 
HURON ON SOUTH WEDNESDAY DURING THE DAY. WINDS WILL INCREASE FROM THE 
NORTHEAST BEHIND THE SYSTEM WEDNESDAY NIGHT WHILE BACKING TO THE 
NORTHWEST ON THURSDAY. COLD AIR WILL HELP PRODUCE BANDS OF LAKE 
EFFECT SNOW ON LAKE HURON THURSDAY. ANOTHER SYSTEM WILL HELP BACK 
THE FLOW TO THE SOUTHWEST FOR FRIDAY WHILE BRINGING MORE SNOW 
ACTIVITY TO THE LAKES. AFTER TONIGHT'S GALES, WINDS ARE EXPECTED TO 
REMAIN BELOW GALE FORCE FOR THE REST OF THE WEEK AND WEEKEND.

LHZ361-130900-
/O.CAN.KDTX.GL.W.0042.000000T0000Z-171213T0400Z/
/O.CON.KDTX.UP.W.0001.000000T0000Z-171213T0900Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
316 PM EST TUE DEC 12 2017

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 AM EST
WEDNESDAY...
...GALE WARNING IS CANCELLED...

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

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 4 AM EST WEDNESDAY.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

&&

$$

LCZ460-130300-
/O.CAN.KDTX.GL.W.0042.000000T0000Z-171213T0500Z/
/O.NEW.KDTX.SC.Y.0095.171212T2016Z-171213T0300Z/
LAKE ST CLAIR-
316 PM EST TUE DEC 12 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EST THIS EVENING...
...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY WHICH IS IN EFFECT UNTIL 10 PM EST THIS
EVENING. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 24 KNOTS FROM THE NORTHWEST 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 3 PM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EST TUESDAY. 

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.

&&

$$

LEZ444-130300-
/O.CAN.KDTX.GL.W.0042.000000T0000Z-171212T2100Z/
/O.NEW.KDTX.SC.Y.0095.171212T2016Z-171213T0300Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
316 PM EST TUE DEC 12 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EST THIS EVENING...
...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY WHICH IS IN EFFECT UNTIL 10 PM EST THIS
EVENING. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 21 KNOTS FROM THE NORTHWEST 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 3 PM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EST TUESDAY. 

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>464-130915-
/O.CON.KDTX.GL.W.0042.000000T0000Z-171213T1000Z/
/O.CON.KDTX.UP.W.0001.000000T0000Z-171213T0900Z/
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-
316 PM EST TUE DEC 12 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 5 AM EST WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 AM EST
WEDNESDAY...

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 4 AM EST WEDNESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 33 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 44 
  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 3 PM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

LHZ421-441>443-130900-
/O.CON.KDTX.GL.W.0042.000000T0000Z-171213T0900Z/
/O.CON.KDTX.UP.W.0001.000000T0000Z-171213T0900Z/
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-
316 PM EST TUE DEC 12 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 AM EST
WEDNESDAY...

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 4 AM EST WEDNESDAY.

* 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 12 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 17 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 3 PM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS
NOT PROPERLY EQUIPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

LHZ422-122130-
/O.CON.KDTX.GL.W.0042.000000T0000Z-171212T2100Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
316 PM EST TUE DEC 12 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 25 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 33 
  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 PM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

JVC

065 
WHUS73 KDTX 130903
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
403 AM EST WED DEC 13 2017

...WINDS DECREASING TODAY...

.WINDS AND WAVES WILL SUBSIDE STEADILY EARLY THIS MORNING AND HAVE 
ALLOWED GALE WARNING TO EXPIRE. A STORM SYSTEM WILL THEN BRING 
MODERATE SNOW FROM ACROSS SOUTHERN LAKE HURON SOUTHWARD TODAY. AS 
THIS LOW PRESSURE PASSES TO THE SOUTH, WINDS WILL INCREASE FROM THE 
NORTHEAST TONIGHT AND THEN BACK TO NORTHWEST ON THURSDAY. WHILE GALE 
CONDITIONS ARE NOT ANTICIPATED, THE STRONG ONSHORE FLOW WILL LEAD TO 
BUILDING WAVES AND THE NEED FOR SMALL CRAFT ADVISORIES OVER THE NEAR 
SHORE WATERS TONIGHT INTO THURSDAY BEFORE WINDS BACK TO NORTHWEST 
AND TAKES THE HIGHER WAVES EAST AWAY FROM THE MICHIGAN SHORE. COLD 
AIR WILL HELP PRODUCE BANDS OF LAKE EFFECT SNOW ON LAKE HURON 
THURSDAY. ANOTHER SYSTEM WILL HELP BACK THE FLOW TO THE SOUTHWEST 
FOR FRIDAY WHILE BRINGING MORE SNOW ACTIVITY TO THE LAKES. AT THIS 
TIME, WINDS ARE NOT EXPECTED TO REACH GALES AGAIN AT LEAST THROUGH 
THE UPCOMING WEEKEND.

LHZ362-363-462>464-131015-
/O.CAN.KDTX.GL.W.0042.000000T0000Z-171213T1000Z/
/O.EXP.KDTX.UP.W.0001.000000T0000Z-171213T0900Z/
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-
403 AM EST WED DEC 13 2017

...GALE WARNING IS CANCELLED...
...HEAVY FREEZING SPRAY WARNING HAS EXPIRED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS CANCELLED THE
GALE WARNING. THE HEAVY FREEZING SPRAY WARNING IS NO LONGER IN
EFFECT. 

$$

LHZ421-441>443-132115-
/O.EXP.KDTX.GL.W.0042.000000T0000Z-171213T0900Z/
/O.EXP.KDTX.UP.W.0001.000000T0000Z-171213T0900Z/
/O.NEW.KDTX.SC.Y.0096.171213T0903Z-171214T1500Z/
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-
403 AM EST WED DEC 13 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EST THURSDAY...
...GALE WARNING HAS EXPIRED...
...HEAVY FREEZING SPRAY WARNING HAS EXPIRED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY WHICH IS IN EFFECT UNTIL 10 AM EST THURSDAY.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 24 KNOTS FROM THE NORTHEAST WITH GUSTS 
  UP TO 30 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 11 PM EST 
  WEDNESDAY WITH THE LARGEST WAVES EXPECTED AROUND 4 AM EST 
  WEDNESDAY. 

THE HEAVY FREEZING SPRAY WARNING IS NO LONGER IN EFFECT. THE GALE
WARNING IS NO LONGER IN EFFECT. 

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.

&&

$$

LHZ361-131015-
/O.EXP.KDTX.UP.W.0001.000000T0000Z-171213T0900Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
403 AM EST WED DEC 13 2017

...HEAVY FREEZING SPRAY WARNING HAS EXPIRED...

THE HEAVY FREEZING SPRAY WARNING IS NO LONGER IN EFFECT. 

$$

LHZ422-132115-
/O.NEW.KDTX.SC.Y.0096.171214T0000Z-171214T1000Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
403 AM EST WED DEC 13 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 5 AM
EST THURSDAY...

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

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 22 KNOTS FROM THE NORTH WITH GUSTS UP 
  TO 29 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 2 
  FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 2 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 12 AM EST 
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 11 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

Area Forecast Discussion
National Weather Service Detroit/Pontiac MI
255 AM EST Mon Dec 11 2017

.DISCUSSION...

Challenging forecast as phasing/merging 6 hr height falls takes
place over the Central/Eastern Great Lakes this evening/tonight.
Lead symmetric upper wave clearly seen on water vapor imagery
tracking through eastern North Dakota, with full head of the steam
toward the southeast. Meanwhile, strong PV anomaly descending from
western Hudson Bay/Northern Manitoba, with trough axis dropping into
Western Great Lakes early this evening, helping to draw the lead
wave over the western Ohio valley this afternoon northeast. Still
conflicting signals in the various models on which FGEN band will be
most active this evening. The low level one toward the Ohio Border
or the mid level FGEN farther north toward the I-69 corridor. 12z
Euro ensemble members also exhibited/revealed this high variability
with respect to the max QPF axis placement as well. As pointed out
by day shift, the longer the two systems stay separate, the better
chance the snow axis will reside farther south, near Ohio border
(see ARW/NMM), but if phasing occurs sooner and low deepens rapidly,
better chance the higher snow axis will be farther north, along and
possibility north of the I-69 corridor (see 00z NAM/GFS). First
things first today, lead isentropic ascent/warm advection/moisture
advection (2.5 G/KG of specific humidity at 700 MB) to lift through
southeast Michigan during the day (around noon), which should be
sufficient for up to 1 inch of snow, as warming thermal profiles in
the 850-700 MB layer diminishes the snow to liquid ratios to
traditional 12:1. More intense snowfall rates arriving this evening
with mid level FGEN flareup, and brief deformation before system
heads off into the Eastern Great Lakes. The 00Z regional GEM spreads
the QPF out a bit more during the evening, as trowal/700 MB Theta-E
axis sinks southeastward as it pulls away, with the aggressive dry
arctic air arriving between 7-12z. As far as snowfall amounts go,
including the light snow from the daytime hours, 1-4 inch totals
still seem reasonable, and will favor the Euro solution highlighting
the middle tier (M-59/I-69) counties with highest totals. This
scenario also has support from the 6z RAP13 through 3Z Tuesday. An
advisory may be needed as 3 inches in six hours is possible, but due
to uncertainty with the exact placement and bulk of activity now
looking to come just after the evening commute, will defer to day
shift to pull the trigger if need be. As stated earlier, quicker
phasing/deepening would tend to put the Thumb under the gun for
higher amounts tonight, but it appears the system will come together
just a bit too late to expect much more than 4 inches. Perhaps more
concerning is the possibility of intense Lake Huron Band(s) on
Tuesday backing/glancing the northern tip of the Thumb region from
Port Austin to Harbor Beach area. Based off 00z NAM 925 MB
lift/convergence, going to be a real close call, and certainly will
be highlighting the potential for accumulating snow along the
eastern shoreline in HWO.

For rest of southeast Michigan, flurries/scattered light snow
showers, wind, and cold will be the story for Tuesday as 850 mb fall
into the -18 to -20 C range. Probabilistic guidance suggest wind
gusts in excess of 30 mph, supported by 16-20 MB 6 HR rise/fall
pressure couplet tracking through early Tuesday.

Although partial clearing is likely Tuesday night, with the airmass
being so cold, a few flurries will likely be around with any
lingering 925 mb moisture around. Winds coming around to the west
with warm advection push late Wednesday may be sufficient for light
snow, but indications is bulk of the snow with clipper system will
be passing south of the State Wednesday night. Still plenty of
opportunities for additional snow late in the work week into the
weekend as active baroclinic zone looks to be straddling the Great
Lakes Region with temperatures residing fairly close to normal
values.

&&

.MARINE...

Southerly winds will gradually increase today and veer to the
southwest in advance of approaching cold front this evening. The
cold front is quite strong and will bring much colder air over the
lake, leading to unstable conditions. Will be upgrading the Gale
Watch to a Warning with sustained winds peaking near gale force on
Tuesday morning with gusts pushing 45 knots at times. Gales will
arrive rather abruptly late tonight in the wake of this front and
persist into Tuesday evening before subsiding somewhat.

The combination of these gusty winds, very cold air and frequest
wave heights in excess of 10 feet will lead to areas of freezing
spray as well allow conditions suggest most of this spray will hold
in the moderate category so no warning is anticipated. The highest
waves may reach 20 feet over so by midday Tuesday. At that time,
snow squall activity will also begin to consolidate over the
southern basin of Lake Huron.

&&

.PREV DISCUSSION...
Issued at 1154 PM EST Sun Dec 10 2017

AVIATION...

Some fluctuation in ceiling heights anticipated during the overnight
and morning periods, as modest northwest wind provides some low
level drying but may prove insufficient to completely clear MVFR
restrictions. Attention then turns to advancing low pressure that
will bring a period of snowfall to the region Monday and Monday
night. Initial period of lighter intensity snowfall expected to
develop during the midday period 16z-20z, where conditions largely
remain at MVFR restrictions outside of the heaviest bursts. Snowfall
intensity will increase during the evening period, with peak
intensity and accumulation potential centered between 7 pm and
midnight. There remains some uncertainty yet in the placement of the
heaviest snowband, but generally expect all locations to witness a
period of IFR during this time.

For DTW...A period of chaotic ceiling heights likely to define the
overnight period, with some residual MVFR restrictions giving way to
generally low VFR stratus...with some pockets of clearing below 5000
ft still not out of the question during the period. Initial burst
of light snow expected to lift through during the early afternoon
period, providing some minor accumulation of up to an inch.  A
second period of potential heavier snow will focus during the late
evening period /00z-05z/, where an additional inch or two of
accumulation will be possible under IFR conditions. Winds remain
modest from the south through tomorrow evening.

//DTW THRESHOLD PROBABILITIES...

* Medium confidence for ceilings aob 5000 feet overnight through
  Monday morning, then high Monday afternoon in developing light
  snow.

* High confidence in precip type being snow this evening and
  again Monday.

&&

.DTX WATCHES/WARNINGS/ADVISORIES...
MI...NONE.
Lake Huron...Gale Warning from 2 AM Tuesday to 5 AM EST Wednesday for LHZ362-363-
     462>464.

     Gale Warning from 4 AM Tuesday to 4 AM EST Wednesday for LHZ421-
     441>443.

     Gale Warning from 1 AM to 11 PM EST Tuesday for LHZ361.

     Gale Warning from 4 AM to 4 PM EST Tuesday for LHZ422.

Lake St Clair...Small Craft Advisory from 3 AM to 11 PM EST Tuesday for LCZ460.

Michigan waters of Lake Erie...Small Craft Advisory from 3 AM to 11 PM EST Tuesday for LEZ444.

&&

DISCUSSION...SF
MARINE.......DG
AVIATION.....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
348 AM EST Mon Dec 11 2017

MIZ047-048-053-054-060>062-068>070-075-076-082-083-120915-
Midland-Bay-Saginaw-Tuscola-Shiawassee-Genesee-Lapeer-Livingston-
Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
348 AM EST Mon Dec 11 2017

This hazardous weather outlook is for most of southeast Michigan.

.DAY ONE...Today and Tonight

Light snow will develop today, with heavier snowfall occuring this
evening before tapering off tonight. Total snowfall accumulations of
1 to 4 inches are expected, with the higher totals occuring between
the M-59 and I-69 corridors. Low pressure tracking through the
northern Ohio Valley and into Eastern Great Lakes tonight will
produce the snowfall, with much colder air and wind gusts to around
35 MPH late tonight into Tuesday behind the low.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

MIZ049-055-063-120915-
Huron-Sanilac-St. Clair-
348 AM EST Mon Dec 11 2017

This hazardous weather outlook is for portions of southeast
Michigan.

.DAY ONE...Today and Tonight

Light snow will develop today, with heavier snowfall occuring this
evening before tapering off tonight. Total snowfall accumulations of
2 to 4 inches are expected. Low pressure tracking through the
northern Ohio Valley and into Eastern Great Lakes tonight will
produce the snowfall, with much colder air and wind gusts to around
40 MPH late tonight into Tuesday behind the low.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Lake effect snow showers will likely impact the northern tip of the
Thumb Region tomorrow into tomorrow evening, producing several inches
of snow accumulation.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-120915-
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-
348 AM EST Mon Dec 11 2017

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

.DAY ONE...Today and Tonight

Gale warnings in effect tonight for all of Lake Huron with small
craft advisories elsewhere. Refer to the latest marine forecasts of
additional information.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Gale warnings and small craft advisories continue Tuesday into
Tuesday night. Refer to the latest marine forecasts of
additional information.

.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