Gale Warning 2, NWS Detroit, MI

344 
WHUS73 KDTX 121939
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
239 PM EST THU JAN 12 2012

...STRONG WINDS TO IMPACT THE REGION TONIGHT THROUGH FRIDAY...

.A STRENGTHENING LOW OVER SOUTHERN LAKE HURON WILL MOVE OFF TO THE
EAST WITH THE STRONG PRESSURE GRADIENT AND INFLUX OF COLD AIR ON
THE BACK SIDE OF THE SYSTEM LEADING TO THE POTENTIAL FOR A LOW END
NORTHWESTERLY GALE OVER MUCH OF LAKE HURON DURING THE DAY ON
FRIDAY. GIVEN THE MARGINAL NATURE OF THE EVENT AND THE FACT THAT
GALE OR NEAR GALES ARE NOT EXPECTED UNTIL FRIDAY MORNING...DID NOT
UPGRADE TO A WARNING AT THIS TIME. REGARDLESS...GUSTY WINDS NEAR
35 KTS CAN BE EXPECTED ON FRIDAY. CORRESPONDINGLY HIGH WAVE
HEIGHTS AROUND 10 FEET CAN ALSO BE EXPECTED OVER THE OPEN WATERS
WITH SOME OF THAT ENERGY LIKELY TO PROPAGATE INTO THE NEARSHORE
WATERS OF SOUTHERN LAKE HURON AS WELL AS THE OUTER SAGINAW BAY.
SMALL CRAFT ADVISORIES HAVE THEREFORE BEEN ISSUED FOR THOSE AREAS.
WESTERLY GALES ARE STILL EXPECTED FOR LAKE ERIE AS THE LOW LIFTS
OUT OF THE AREA THIS EVENING. WINDS AND WAVES WILL DECREASE BY
SATURDAY WITH A QUIET PERIOD EXPECTED UNTIL SOUTHERLY WINDS
INCREASE AHEAD OF THE NEXT SYSTEM ON MONDAY.

LEZ444-130745-
/O.CON.KDTX.GL.W.0002.120113T0600Z-120113T2100Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
239 PM EST THU JAN 12 2012

...GALE WARNING REMAINS IN EFFECT FROM 1 AM TO 4 PM EST FRIDAY...

A GALE WARNING REMAINS IN EFFECT FROM 1 AM TO 4 PM EST FRIDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 26 KNOTS FROM THE WEST 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 7 AM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 4 AM 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
OCCURRING. 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.

&&

$$

LHZ421-443-130745-
/O.NEW.KDTX.SC.Y.0004.120113T1200Z-120114T1200Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-PORT SANILAC TO PORT HURON MI-
239 PM EST THU JAN 12 2012

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

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 27 KNOTS FROM THE NORTH WITH GUSTS UP TO
  34 KNOTS. FOR SAGINAW BAY...THE LARGEST EXPECTED SIGNIFICANT
  WAVES WILL BE 10 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 14
  FEET. FROM PORT SANILAC TO PORT HURON...THE LARGEST EXPECTED
  SIGNIFICANT WAVES WILL BE 8 FEET WITH A POTENTIAL MAXIMUM WAVE
  HEIGHT OF 12 FEET.

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

&&

$$

LHZ362-363-462>464-130745-
/O.CON.KDTX.GL.A.0003.120113T1200Z-120114T0000Z/
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-
239 PM EST THU JAN 12 2012

...GALE WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY EVENING...

A GALE WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY
EVENING. 

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 29 KNOTS FROM THE NORTH WITH GUSTS UP TO 39 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 11 AM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 1 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.

&&

$$

LHZ441-442-130745-
/O.CON.KDTX.GL.A.0002.120113T1200Z-120114T0000Z/
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
239 PM EST THU JAN 12 2012

...GALE WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY EVENING...

A GALE WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY
EVENING. 

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 28 KNOTS FROM THE NORTH 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 10 AM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 1 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.

&&

$$

128 
WHUS73 KDTX 130233
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
933 PM EST THU JAN 12 2012

...GUSTY WINDS AND ARCTIC AIR TONIGHT AND FRIDAY...

.A STRONG LOW OVER SOUTHERN LAKE HURON WILL MOVE OFF TO THE EAST WITH 
THE STRONG PRESSURE GRADIENT AND INFLUX OF COLD AIR ON THE BACK SIDE 
OF THE SYSTEM LEADING TO THE POTENTIAL FOR A LOW END NORTHWESTERLY 
GALE OVER MUCH OF LAKE HURON DURING THE DAY ON FRIDAY. GIVEN THE 
MARGINAL NATURE OF THE EVENT AND THE FACT THAT GALE OR NEAR GALES 
ARE NOT EXPECTED UNTIL FRIDAY MORNING...DID NOT UPGRADE TO A WARNING 
AT THIS TIME. REGARDLESS...GUSTY WINDS NEAR 35 KTS CAN BE EXPECTED 
ON FRIDAY. CORRESPONDINGLY HIGH WAVE HEIGHTS AROUND 10 FEET CAN ALSO 
BE EXPECTED OVER THE OPEN WATERS WITH SOME OF THAT ENERGY LIKELY TO 
PROPAGATE INTO THE NEARSHORE WATERS OF SOUTHERN LAKE HURON AS WELL 
AS THE OUTER SAGINAW BAY. SMALL CRAFT ADVISORIES HAVE THEREFORE BEEN 
ISSUED FOR THOSE AREAS. WESTERLY GALES ARE STILL EXPECTED FOR LAKE 
ERIE AS THE LOW LIFTS OUT OF THE AREA THIS EVENING. WINDS AND WAVES 
WILL DECREASE BY SATURDAY WITH A QUIET PERIOD EXPECTED UNTIL 
SOUTHERLY WINDS INCREASE AHEAD OF THE NEXT SYSTEM ON MONDAY.

LHZ362-363-462>464-130345-
/O.CAN.KDTX.GL.A.0003.120113T1200Z-120114T0000Z/
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-
933 PM EST THU JAN 12 2012

...GALE WATCH IS CANCELLED...

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

$$

LEZ444-131445-
/O.EXT.KDTX.GL.W.0002.120113T0233Z-120113T2100Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
933 PM EST THU JAN 12 2012

...GALE WARNING NOW IN EFFECT UNTIL 4 PM EST FRIDAY...

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 29 KNOTS FROM THE WEST WITH GUSTS UP TO 37 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 11 AM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 AM 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
OCCURRING. 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.

&&

$$

LHZ441-442-131445-
/O.EXB.KDTX.SC.Y.0004.120113T0800Z-120114T0000Z/
/O.UPG.KDTX.GL.A.0002.120113T1200Z-120114T0000Z/
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
933 PM EST THU JAN 12 2012

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM TO 7 PM EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY...WHICH IS IN EFFECT FROM 3 AM TO 7 PM EST
FRIDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 25 KNOTS FROM THE NORTH WITH GUSTS UP 
  TO 35 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 8 AM 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 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.

&&

$$

LCZ460-131445-
/O.EXB.KDTX.SC.Y.0004.120113T0233Z-120114T0000Z/
LAKE ST. CLAIR-
933 PM EST THU JAN 12 2012

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY...WHICH IS IN EFFECT UNTIL 7 PM EST FRIDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 25 KNOTS FROM THE NORTHWEST WITH GUSTS 
  UP TO 34 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 10 AM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 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.

&&

$$

LHZ421-443-131445-
/O.EXT.KDTX.SC.Y.0004.120113T0800Z-120114T0000Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-PORT SANILAC TO PORT HURON MI-
933 PM EST THU JAN 12 2012

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 3 AM TO 7 PM EST
FRIDAY...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT FROM 3 AM TO 7 PM EST
FRIDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 24 KNOTS FROM THE NORTH WITH GUSTS UP 
  TO 29 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 FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 2 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.

&&

$$

097 
WHUS73 KDTX 130340
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1040 PM EST THU JAN 12 2012

...GUSTY WINDS AND ARCTIC AIR TONIGHT AND FRIDAY...

.A STRONG LOW OVER SOUTHERN LAKE HURON WILL MOVE OFF TO THE EAST WITH 
THE STRONG PRESSURE GRADIENT AND INFLUX OF COLD AIR ON THE BACK SIDE 
OF THE SYSTEM LEADING TO THE POTENTIAL FOR A LOW END NORTHWESTERLY 
GALE OVER MUCH OF LAKE HURON DURING THE DAY ON FRIDAY. GIVEN THE 
MARGINAL NATURE OF THE EVENT AND THE FACT THAT GALE OR NEAR GALES 
ARE NOT EXPECTED UNTIL FRIDAY MORNING...DID NOT UPGRADE TO A WARNING 
AT THIS TIME. REGARDLESS...GUSTY WINDS NEAR 35 KTS CAN BE EXPECTED 
ON FRIDAY. CORRESPONDINGLY HIGH WAVE HEIGHTS AROUND 10 FEET CAN ALSO 
BE EXPECTED OVER THE OPEN WATERS WITH SOME OF THAT ENERGY LIKELY TO 
PROPAGATE INTO THE NEARSHORE WATERS OF SOUTHERN LAKE HURON AS WELL 
AS THE OUTER SAGINAW BAY. SMALL CRAFT ADVISORIES HAVE THEREFORE BEEN 
ISSUED FOR THOSE AREAS. WESTERLY GALES ARE STILL EXPECTED FOR LAKE 
ERIE AS THE LOW LIFTS OUT OF THE AREA THIS EVENING. THE PERSISTENT
AND STRONG WESTERLY WINDS OVER LAKE ERIE WILL ALLOW WATER LEVELS
TO DROP LOWER THAN THOSE CONSIDERED SAFE FOR NAVIGATION ACROSS THE
WESTERN PORTION OF THE LAKE...AND A LOW WATER ADVISORY IS IN EFFECT
UNTIL FRIDAY EVENING. WINDS AND WAVES WILL DECREASE BY SATURDAY
WITH A QUIET PERIOD EXPECTED UNTIL SOUTHERLY WINDS INCREASE AHEAD
OF THE NEXT SYSTEM ON MONDAY.

LEZ444-131545-
/O.NEW.KDTX.LO.Y.0002.120113T0340Z-120113T2300Z/
/O.CON.KDTX.GL.W.0002.000000T0000Z-120113T2100Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
1040 PM EST THU JAN 12 2012

...LOW WATER ADVISORY IN EFFECT UNTIL 6 PM EST FRIDAY...
...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A LOW
WATER ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM EST FRIDAY. 

* EXPECT WATER LEVELS TO DROP CLOSE TO 9 INCHES BELOW LOW WATER
  DATUM BY 1 AM EST FRIDAY MORNING WITH LOW WATER CONDITIONS
  PERSISTING UNTIL 6 PM EST FRIDAY.

A GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST FRIDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 29 KNOTS FROM THE WEST WITH GUSTS UP TO 37 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 11 AM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 AM 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
OCCURRING. 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 LOW WATER ADVISORY MEANS WATER LEVELS ARE EXPECTED TO BE
SIGNIFICANTLY BELOW AVERAGE. MARINERS SHOULD USE EXTREME CAUTION
AND TRANSIT AT THE SLOWEST SAFE NAVIGABLE SPEED TO MINIMIZE
IMPACT.

&&

$$

LCZ460-131545-
/O.CON.KDTX.SC.Y.0004.000000T0000Z-120114T0000Z/
LAKE ST. CLAIR-
1040 PM EST THU JAN 12 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 25 KNOTS FROM THE NORTHWEST WITH GUSTS 
  UP TO 34 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 10 AM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 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.

&&

$$

LHZ421-441>443-131545-
/O.CON.KDTX.SC.Y.0004.120113T0800Z-120114T0000Z/
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-
1040 PM EST THU JAN 12 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM TO 7 PM EST
FRIDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM TO 7 PM EST
FRIDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 25 KNOTS FROM THE NORTH WITH GUSTS UP 
  TO 35 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 8 AM 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 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.

&&

$$

HLO

513 
WHUS73 KDTX 130915
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
415 AM EST FRI JAN 13 2012

...GUSTY WINDS WILL CONTINUE OVER THE CENTRAL GREAT LAKES THROUGH
THIS AFTERNOON...

.A STRONG LOW PRESSURE SYSTEM WILL TRACK FROM EASTERN ONTARIO INTO 
SOUTHERN QUEBEC TODAY. A TIGHT SURFACE PRESSURE GRADIENT ASSOCIATED 
WITH THIS AREA OF LOW PRESSURE IN COMBINATION WITH STRONG COLD AIR 
ADVECTION WILL CREATE UNSTABLE CONDITIONS OVER THE GREAT LAKES...AND 
ALLOW GUSTY WINDS TO CONTINUE TODAY. WIND GUSTS UP TO 30 KNOTS ARE
POSSIBLE ACROSS MOST OF LAKE HURON AND ACROSS LAKE ST CLAIR.
FURTHER SOUTH...GALE FORCE WINDS WILL BE LIKELY ACROSS WESTERN
LAKE ERIE. THE PERSISTENT AND STRONG WESTERLY WINDS OVER LAKE ERIE
WILL ALLOW WATER LEVELS TO DROP LOWER THAN THOSE CONSIDERED SAFE
FOR NAVIGATION ACROSS THE WESTERN PORTION OF THE LAKE...AND A LOW
WATER ADVISORY IS IN EFFECT THROUGH FRIDAY EVENING. WAVE HEIGHTS
WILL ALSO GROW QUITE LARGE TODAY...ESPECIALLY OVER LAKE HURON AS
WESTERLY WINDS INCREASE...WITH WAVE HEIGHTS BUILDING TO AROUND 10 FEET.
WINDS AND WAVES WILL BEGIN TO DECREASE THIS EVENING AS HIGH
PRESSURE BUILDS INTO THE AREA.

LEZ444-132115-
/O.CON.KDTX.GL.W.0002.000000T0000Z-120113T2100Z/
/O.CON.KDTX.LO.Y.0002.000000T0000Z-120113T2300Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
415 AM EST FRI JAN 13 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 27 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 4 AM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 5 AM EST FRIDAY. 

A LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING. 

* AT 340 AM EST...THE WATER LEVEL NEAR TOLEDO WAS -1
  INCHES...WHICH IS 10 INCHES BELOW THE CRITICAL MARK FOR SAFE
  NAVIGATION. THE WATER LEVEL IS EXPECTED TO REMAIN NEARLY STEADY THROUGH
  THE MORNING HOURS AND THEN BEGIN TO RISE LATE THIS MORNING. THE
  WATER LEVEL WILL RISE ABOVE THE CRITICAL MARK LATE FRIDAY
  AFTERNOON.

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
OCCURRING. 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 LOW WATER ADVISORY MEANS WATER LEVELS ARE EXPECTED TO BE
SIGNIFICANTLY BELOW AVERAGE. MARINERS SHOULD USE EXTREME CAUTION
AND TRANSIT AT THE SLOWEST SAFE NAVIGABLE SPEED TO MINIMIZE
IMPACT.

&&

$$

LHZ421-441>443-132115-
/O.EXT.KDTX.SC.Y.0004.000000T0000Z-120114T0900Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-
415 AM EST FRI JAN 13 2012

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

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

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 24 KNOTS FROM THE NORTH WITH GUSTS UP TO 31 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 8 AM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 1 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.

&&

$$

LCZ460-132115-
/O.CON.KDTX.SC.Y.0004.000000T0000Z-120114T0000Z/
LAKE ST. CLAIR-
415 AM EST FRI JAN 13 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 21 KNOTS FROM THE SOUTHWEST WITH GUSTS UP
  TO 31 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 4
  FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 5 FEET.

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

&&

$$

HLO

729 
WHUS73 KDTX 132122
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
422 PM EST FRI JAN 13 2012

...WAVES SLOW TO SUBSIDE TONIGHT...

.WHILE NORTHWEST WINDS WILL DECREASE SIGNIFICANTLY DURING THE
EVENING...EXPECT WAVES TO REMAIN HIGH ON LAKE HURON THROUGH MUCH
OF THE NIGHT. CONDITIONS WILL MARKEDLY IMPROVE ON WEDNESDAY AS A
RIDGE OF HIGH PRESSURE BUILDS ACROSS THE AREA AND BRINGS LIGHT AND
VARIABLE WINDS.

LEZ444-132230-
/O.CAN.KDTX.GL.W.0002.000000T0000Z-120113T2100Z/
/O.CAN.KDTX.LO.Y.0002.000000T0000Z-120113T2300Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
422 PM EST FRI JAN 13 2012

...GALE WARNING IS CANCELLED...
...LOW WATER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS CANCELLED THE
GALE WARNING. THE LOW WATER ADVISORY HAS BEEN CANCELLED. 

$$

LCZ460-132230-
/O.CAN.KDTX.SC.Y.0004.000000T0000Z-120114T0000Z/
LAKE ST. CLAIR-
422 PM EST FRI JAN 13 2012

...SMALL CRAFT ADVISORY IS CANCELLED...

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

$$

LHZ421-441>443-140900-
/O.CON.KDTX.SC.Y.0004.000000T0000Z-120114T0900Z/
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-
422 PM EST FRI JAN 13 2012

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

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

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 22 KNOTS FROM THE NORTHWEST WITH GUSTS UP
  TO 30 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 9
  FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 13 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 3 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 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.

&&

$$

DG

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1145 PM EST WED JAN 11 2012

.AVIATION...

//DISCUSSION...

LOW PRESSURE ALONG THE IN/OH BORDER IS FORECAST TO TRACK JUST EAST
OF DETROIT EARLY THURS AFTERNOON. AMPLE LOW LEVEL MOISTURE ADVECTION
WITH THIS SYSTEM HAS LED TO A LARGE AREA OF LOW CEILINGS AND
VISIBILITIES IN THE VICINITY OF THE SURFACE LOW. IN FACT CEILINGS
HAVE FALLEN AT OR BELOW 400 FT ACROSS MUCH OF SRN INDIANA/ERN OHIO.
LOW CLOUDS AND FOG IN LIGHT RAIN/DRIZZLE WILL PREVAIL THROUGH THE
AFTERNOON AS THE LOW SLOWLY TRACKS EAST OF THE AREA. COLDER AIR WILL
THEN FILTER INTO THE REGION THURS EVENING...WHICH WILL ALLOW A
GRADUAL CHANGE OVER TO SNOW.

FOR DTW...CEILINGS QUICKLY DROPPED BELOW 600 FT THIS EVENING.
CONTINUED MOISTURE ADVECTION WILL LIKELY DROP CEILINGS DOWN TO 300
OR 200 FT TOWARD DAYBREAK...WITH ONLY A GRADUAL IMPROVING TREND
DURING THE AFTERNOON.

//DTW THRESHOLD THREATS...

* HIGH CONFIDENCE THAT CEILINGS WILL REMAIN BELOW 5000 FT THROUGH
THE TAF PERIOD.

* LOW CONFIDENCE CEILINGS AND/OR VISIBILITIES WILL DROP BELOW 200
FT AND/OR 1/2SM THIS MORNING.

&&

.PREV DISCUSSION...ISSUED 936 PM EST WED JAN 11 2012

UPDATE...

OVERALL THE GOING FORECAST IS IN GOOD SHAPE. WILL ONLY UPDATE TO
MAKE SOME MINOR TIMING ADJUSTMENTS FOR THE RAINFALL. THE 0230Z RADAR
SHOWED A BAND OF LIGHT RAIN STRETCHING FROM ANN ARBOR INTO THE
NORTHERN DETROIT SUBURBS. THIS BAND OF RAIN IS ASSOCIATED A REGION
OF MID LEVEL DEFORMATION AND MOIST ISENTROPIC ASCENT AND IS
EXPECTED TO CONTINUE TO LIFT NORTH DURING THE NIGHT...REACHING THE
SAGINAW VALLEY TOWARD DAYBREAK. IN THE WAKE OF THIS BAND OF LIGHT
RAIN...ABUNDANT LOW LEVEL MOISTURE WILL LEAD TO OCCASIONAL LIGHT
SHOWERS AND/OR DRIZZLE THROUGH THE REMAINDER OF THE NIGHT.

PREV DISCUSSION...ISSUED 325 PM EST WED JAN 11 2012

SHORT TERM...TONIGHT

AN OCCLUDED SURFACE LOW WILL LIFT NORTHWARD TONIGHT...FROM EASTERN
KENTUCKY TO LAKE ERIE...AS THE UPPER AIR PATTERN AMPLIFIES AHEAD OF
VIGOROUS NORTHERN STREAM ENERGY DIGGING INTO THE GREAT PLAINS. AS IT
DOES SO...THE ZONALLY ORIENTED BAND OF RAIN CURRENTLY DRAPED ACROSS
THE NORTHERN OHIO VALLEY WILL ROTATE INTO THE GREAT LAKES LAKES.
DEFORMATION FORCING/MODERATE ISENTROPIC ASCENT WILL TEND TO BE ON
THE DECLINE AS THE PARENT UPPER LOW PROPAGATES OFF THE
NORTHEAST...BUT CONTINUED MODEST FORCING IN THE PRESENCE OF
UNSEASONABLY HIGH SUBTROPICAL MOISTURE (PWATS > 0.75") SURGING INTO
THE CWA WILL BE SUFFICIENT FOR CATEGORICAL POPS ACROSS THE
SOUTHEASTERN THIRD THROUGH THE FIRST HALF OF THE PERIOD. THE SURFACE
PRESSURE FIELD WILL REMAIN FAIRLY STAGNANT INITIALLY...AT LEAST IN A
SYSTEM RELATIVE SENSE...AS THE ORPHANED SFC LOW LIFTS NORTHWARD
MAKING A DOWNWARD TREND IN ACTIVITY A LIKELIHOOD AS THE NIGHT
PROGRESSES. HOWEVER...MODEL PROGS DO SUGGEST THAT THE LOW WILL BEGIN
TO FEEL THE EFFECTS OF THE DIGGING NORTHERN STREAM WAVE AFTER 09Z
RESULTING IN RENEWED PRESSURE FALLS AND POSSIBLY AN UPTICK IN
COVERAGE/INTENSITY BEFORE SUNRISE. DEWPOINTS IN THE LOW/MID 30S AND
GRADUALLY RISING WILL SUPPORT LOW TEMPERATURES IN THE 35-38F RANGE.

LONG TERM...

WATER VAPOR IMAGERY SHOWS NICE UPPER LEVEL WAVE/LOW TRACKING
THROUGH THE SOUTHEASTERN UNITED STATES...AND 12Z RAOB OUT OF
JACKSON MISSISSIPPI SUPPORTS A STRONGER SYSTEM COMPARED TO MODEL
INITIALIZATIONS. MEANWHILE A POLAR TROUGH IS PLUNGING TOWARD TEXAS
AT THE PRESENT TIME...WITH MODEST SHOT OF ARCTIC AIR DESCENDING
THROUGH THE EASTERN ROCKIES. THE BIGGEST MODEL SHIFT IS WITH THIS
MODIFIED ARCTIC AIRMASS...AS 850 MB TEMPS ARE ONLY PROGGED TO DROP
INTO THE LOW TO MID NEGATIVE TEENS ON FRIDAY. THUS...LAKE
INSTABILITY IS GOOD...BUT NOT GREAT...AND WILL HAVE TO LEAN MORE
HEAVILY ON SYNOPTIC FORCING FOR ACCUMULATIONS. THE SOUTHEAST CONUS
WAVE WILL BE TRACKING THROUGH NEW ENGLAND...AND WILL TAKE MUCH OF
THE MOISTURE WITH IT...BUT THERE WILL BE A GOOD SHOT OF FORCING
EARLY FRIDAY MORNING...AS PV CENTER CURRENTLY OVER WESTERN
DAKOTAS/EASTERN WYOMING QUICKLY DESCENDS TO ARKANSAS TOMORROW
BEFORE MAKING THE TURN TO THE NORTHEAST. PER 12Z EUROPEAN...850 MB
SPECIFIC HUMIDITY STARTS OUT ABOVE 3.5 G/KG THURSDAY EVENING...BUT
QUICKLY TAILS OFF BETWEEN 2.25 TO 2.75 G/KG (ON AVERAGE) BY FRIDAY
MORNING...AND 1.25 TO 1.5 G/KG BY THE END OF THE DAY ON FRIDAY.
MODEL CONSENSUS IS FOR SURFACE LOW TO MOVE OVER THE PORT
HURON/THUMB REGION LATE THURSDAY BEFORE DEEPENING REALLY BEGINS TO
ACCELERATE AND THE LOW TRANSLATES TO THE EAST. THE 700 MB LOW
LOOKS TO BE TRACKING THROUGH CENTRAL LOWER MICHIGAN (KMOP-INNER
SAGINAW BAY). MOST OF SOUTHEAST MICHIGAN WILL BE TOO CLOSE TO THE
SURFACE LOW AND NOT IN FAVORABLE SPOT FOR HEAVIER SNOW...WHICH
WILL BE DISPLACED TO OUR NORTH AND WEST. THE OTHER ISSUE IS
THURSDAY WILL BE ANOTHER MILD DAY WITHIN THE THERMAL RIDGE/WARM
CONVEYOR BELT...AS 925 MB TEMPS DO NOT FALL BELOW ZERO FOR THE
EASTERN HALF OF THE CWA UNTIL AFTER 00Z FRIDAY. BASED ON THESE
NEGATIVE FACTORS...THINKING PREDOMINATELY 2 TO 3 INCHES OF SNOW
ACROSS SOUTHEAST MICHIGAN (THURSDAY NIGHT-FRIDAY)...BUT 4+ INCHES
WITH LOCAL LAKE ENHANCEMENTS. THOSE LOCATIONS LIKELY INCLUDE
EASTERN THUMB REGION WITH LAKE HURON/SAGINAW BAY AND LENAWEE
COUNTY WITH ENHANCED THERMAL TROUGHING/LAKE MICHIGAN CONTRIBUTION.
KEEP IN MIND...THE ZONE FORECAST IS BROKEN IN 12 HR BLOCKS...AND
DOES NOT ALLOW FOR COMPACTION/SETTLING OF THE SNOW. THUS...ONE
SHOULD NOT ADD UP THE THURSDAY NIGHT AND FRIDAY PERIODS AND EXPECT
TO SEE THOSE HIGHER TOTALS.

WINDS NEAR THE OHIO BORDER LOOK TO BE THE STRONGEST FRIDAY
MORNING...EMBEDDED WITH TIGHTEST PRESSURE GRADIENT/MORE ROBUST LOW
LEVEL COLD ADVECTION. MODEL SOUNDING MOMENTUM TRANSFER AND
ISENTROPIC DESCENT CERTAINLY SUGGEST THE POTENTIAL FOR GUSTS AROUND
40 MPH.

WILL HAVE TO WATCH CLIPPER SYSTEM FOR SATURDAY NIGHT...BUT CONSENSUS
IS THE SYSTEM WILL TRACK TO OUR SOUTH. STILL...MAY BE ENOUGH TO
RAISE INVERSION HEIGHTS TO SUPPORT CONTINUED LIMITED LAKE ACTIVITY.

STRONG WARM ADVECTION PATTERN WILL DEVELOP LATE IN THE WEEKEND INTO
EARLY NEXT WEEK AHEAD OF OUR NEXT SHORTWAVE TROUGH/COLD
FRONT...WHICH LOOKS TO MOVE THROUGH ON TUESDAY AS PSEUDO ZONAL FLOW
RETURNS.

MARINE...

EASTERLY WINDS OVER THE CENTRAL GREAT LAKES WILL BACK TOWARD THE NW
OVER LAKE HURON AND THE WSW FROM LAKE SAINT CLAIR SOUTHWARD AS A LOW
PRESSURE SYSTEM LIFTS FROM THE OHIO VALLEY INTO ONTARIO BETWEEN NOW
AND FRIDAY. THE COMBINATION OF COLD AND UNSTABLE AIR OVERSPREADING
AREA WATERS IN THE WAKE OF THIS LOW AND A STRENGTHENING SURFACE
PRESSURE GRADIENT WILL RESULT IN A MARKED INCREASE IN WINDS DURING
THIS TIME...ESPECIALLY FOR THE MICHIGAN WATERS OF LAKE ERIE WHERE A
GALE WATCH REMAINS IN EFFECT THROUGH FRIDAY EVENING. THERE REMAINS
THE POTENTIAL FOR GALES TO DEVELOP OVER THE OPEN WATERS OF LAKE
HURON FRIDAY...BUT LOW CONFIDENCE PRECLUDES WATCH ISSUANCE AT THIS
TIME.

&&

.DTX WATCHES/WARNINGS/ADVISORIES...
MI...NONE.
LAKE HURON...NONE.
LAKE ST CLAIR...NONE.
MI WATERS OF LAKE ERIE...
     GALE WATCH...FROM 1 AM FRIDAY TO 7 PM FRIDAY.

&&

AVIATION.....SC
UPDATE.......SC
SHORT TERM...JVC
LONG TERM....SF
MARINE.......JVC

YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE
AT WWW.WEATHER.GOV/DETROIT (ALL LOWER CASE).

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
427 AM EST WED JAN 11 2012

MIZ047>049-053>055-060>063-068>070-075-076-082-083-120930-
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER-
ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE-
427 AM EST WED JAN 11 2012

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...THURSDAY THROUGH TUESDAY

A LARGE AREA OF SURFACE LOW PRESSURE WILL DEVELOP OVER THE GREAT
LAKES ON THURSDAY AND PERSIST ACROSS THE REGION THROUGH FRIDAY
NIGHT. COLD AIR WILL WRAP INTO THIS SYSTEM BEGINNING THURSDAY
AFTERNOON SUPPORTING PRECIPITATION TO CHANGE OVER TO SNOW. EXACT
POSITIONING OF THE LOW CENTER REMAINS UNCERTAIN...BUT LATEST
INDICATIONS ARE THAT A WIDESPREAD SNOWFALL OF 2 TO 4 INCHES WILL
BE POSSIBLE THURSDAY NIGHT THROUGH FRIDAY NIGHT. BREEZY WESTERLY
WINDS OF AROUND 35 MPH ARE ALSO EXPECTED TO DEVELOP WITH THIS
SYSTEM THURSDAY NIGHT...PRIMARILY ACROSS FAR SOUTHERN LOWER MICHIGAN.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

LCZ422-423-460-LEZ444-LHZ361>363-421-422-441>443-462>464-120930-
ST. CLAIR RIVER-DETROIT RIVER-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-
427 AM EST WED JAN 11 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LAKE
HURON AND LAKE ST CLAIR.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A GALE WATCH IS IN EFFECT THURSDAY NIGHT AND FRIDAY FOR THE
MICHIGAN WATERS OF LAKE ERIE. PLEASE REFER TO THE LATEST MARINE
FORECASTS FOR MORE INFORMATION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

CB

YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE
AT WWW.WEATHER.GOV/DETROIT (ALL LOWER CASE).