Gale Warning 35, NWS Detroit, MI

557 
WHUS73 KDTX 180838
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
338 AM EST FRI FEB 18 2011

...STORM FORCE WINDS EXPECTED OVER NORTHERN LAKE HURON...

.A STRONG LOW PRESSURE SYSTEM WILL TRACK NORTHEAST TO NEAR JAMES
BAY THIS EVENING...PULLING A STRONG COLD FRONT THROUGH THE CENTRAL
GREAT LAKES TODAY. COLD AIR WILL SURGE ACROSS THE LAKE THROUGH
TONIGHT LEADING TO INCREASINGLY UNSTABLE CONDITIONS WITH GALE TO
STORM FORCE WIND GUSTS EXPECTED. THE WINDS ARE EXPECTED TO BE
STRONGEST ACROSS THE NORTHERN HALF OF THE LAKE AS THE FRONT DRIVES
THE COLDEST AIR INTO THAT AREA...WHERE GUSTS TO 50 KNOT STORMS ARE
EXPECTED. FURTHER SOUTH...GUSTS BETWEEN 35 AND 45 KNOTS WILL OCCUR
ACROSS SOUTHERN LAKE HURON. THESE CONDITIONS WILL CONTINUE INTO
SATURDAY BEFORE GRADUALLY DIMINISHING AS HIGH PRESSURE APPROACHES.


LHZ361-362-182045-
/O.UPG.KDTX.SR.A.0001.110218T2100Z-110219T1500Z/
/O.NEW.KDTX.SR.W.0002.110218T2100Z-110219T1500Z/
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-
338 AM EST FRI FEB 18 2011

...STORM WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM EST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
STORM WARNING...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO
10 AM EST SATURDAY. 

* WIND AND WAVES: DURING THE STORM WARNING...EXPECT SUSTAINED 
  WINDS UP TO 40 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 52 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 17 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 24 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 12 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 2 AM EST 
  SATURDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A STORM WARNING MEANS WINDS OF 48 TO 63 KNOTS ARE IMMINENT OR
OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN PORT...OR TAKE
SHELTER UNTIL WINDS AND WAVES SUBSIDE. COMMERCIAL VESSELS SHOULD
PREPARE FOR VERY STRONG WINDS AND DANGEROUS SEA CONDITIONS...AND
CONSIDER REMAINING IN PORT OR TAKING SHELTER IN PORT UNTIL WINDS
AND WAVES SUBSIDE.

&&

$$

LHZ363-441>443-462>464-182045-
/O.CON.KDTX.GL.W.0035.110218T1600Z-110219T2100Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-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-
338 AM EST FRI FEB 18 2011

...GALE WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 4 PM
EST SATURDAY...

A GALE WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 4 PM
EST SATURDAY. 

* 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 17 FEET WITH A
  POTENTIAL MAXIMUM WAVE HEIGHT OF 24 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 1 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 3 AM EST 
  SATURDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
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.

&&

$$

LHZ421-422-182045-
/O.CON.KDTX.GL.W.0035.110218T1600Z-110219T2100Z/
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-
338 AM EST FRI FEB 18 2011

...GALE WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 4 PM
EST SATURDAY...

A GALE WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 4 PM
EST SATURDAY. 

* WIND: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS UP TO 
  28 KNOTS FROM THE WEST WITH GUSTS UP TO 38 KNOTS. 

* TIMING: THE MAXIMUM WINDS ARE 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
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.

&&

$$

DG

167 
WHUS73 KDTX 181505
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1005 AM EST FRI FEB 18 2011

...STORM FORCE WINDS EXPECTED OVER NORTHERN LAKE HURON...

.A STRONG LOW PRESSURE SYSTEM WILL DEEPEN AS IT LIFTS TOWARDS ST
JAMES BAY...SENDING A SECONDARY COLD FRONT ACROSS THE REGION TODAY.
A DEEP LAYER OF COLD AIR WILL SURGE ACROSS THE GREAT LAKES LATE
TODAY AND TONIGHT LEADING TO INCREASINGLY UNSTABLE CONDITIONS WITH
GALE TO STORM FORCE WIND GUSTS EXPECTED OVER LAKE HURON. THE WINDS
ARE EXPECTED TO BE STRONGEST ACROSS THE NORTHERN HALF OF THE LAKE
AS THE FRONT DRIVES THE COLDEST AIR INTO THAT AREA...WHERE GUSTS
AROUND 50 KNOT STORMS ARE EXPECTED. FURTHER SOUTH...GUSTS BETWEEN 35
AND 45 KNOTS WILL OCCUR ACROSS SOUTHERN LAKE HURON...AND GUSTS TO
30 KNOTS ARE EXPECTED OVER LAKE ST CLAIR AND WESTERN LAKE ERIE.
THE STRONG WINDS WILL CONTINUE INTO SATURDAY BEFORE GRADUALLY
DIMINISHING AS HIGH PRESSURE BUILDS IN FROM THE WEST.

LHZ363-441>443-462>464-190315-
/O.CON.KDTX.GL.W.0035.110218T1600Z-110219T2100Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-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-
1005 AM EST FRI FEB 18 2011

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST SATURDAY...

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS
  UP TO 35 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 1 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 4 AM EST 
  SATURDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
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.

&&

$$

LHZ421-422-190315-
/O.CON.KDTX.GL.W.0035.110218T1600Z-110219T2100Z/
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-
1005 AM EST FRI FEB 18 2011

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST SATURDAY...

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

* WIND: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS UP TO 28
  KNOTS FROM THE WEST WITH GUSTS UP TO 40 KNOTS.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 10 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
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.

&&

$$

LHZ361-362-190315-
/O.CON.KDTX.SR.W.0002.110218T2100Z-110219T1500Z/
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-
1005 AM EST FRI FEB 18 2011

...STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
10 AM EST SATURDAY...

A STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
10 AM EST SATURDAY. 

* WIND AND WAVES: DURING THE STORM WARNING...EXPECT SUSTAINED 
  WINDS UP TO 40 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 55 
  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 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 2 AM EST 
  SATURDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A STORM WARNING MEANS WINDS OF 48 TO 63 KNOTS ARE IMMINENT OR
OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN PORT...OR TAKE
SHELTER UNTIL WINDS AND WAVES SUBSIDE. COMMERCIAL VESSELS SHOULD
PREPARE FOR VERY STRONG WINDS AND DANGEROUS SEA CONDITIONS...AND
CONSIDER REMAINING IN PORT OR TAKING SHELTER IN PORT UNTIL WINDS
AND WAVES SUBSIDE.

&&

$$

LCZ460-LEZ444-190315-
/O.NEW.KDTX.BW.Y.0008.110218T1600Z-110219T1500Z/
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
1005 AM EST FRI FEB 18 2011

...BRISK WIND ADVISORY IN EFFECT UNTIL 10 AM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
BRISK WIND ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM EST
SATURDAY. 

* WIND: DURING THE BRISK WIND ADVISORY...EXPECT SUSTAINED WINDS UP
  TO 22 KNOTS FROM THE WEST WITH GUSTS UP TO 31 KNOTS.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 8 PM EST FRIDAY.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BRISK WIND ADVISORY MEANS THAT WINDS WILL REACH SMALL CRAFT
ADVISORY CRITERIA IN AREAS THAT ARE PRIMARILY ICE COVERED. MOVING
ICE FLOES COULD DAMAGE SMALL CRAFT.

&&

$$

HLO

820 
WHUS73 KDTX 182121
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
421 PM EST FRI FEB 18 2011

...STORM FORCE WINDS TONIGHT OVER CENTRAL AND NORTHERN LAKE HURON...

.A SECONDARY COLD FRONT WILL PUSH ACROSS THE CENTRAL GREAT LAKES
TONIGHT...WHILE A TIGHT SURFACE PRESSURE GRADIENT ALSO REMAINS IN
PLACE. THE DEEP LAYER OF COLD AIR SURGING ACROSS THE GREAT LAKES
WILL LEAD TO INCREASINGLY UNSTABLE CONDITIONS...ALLOWING GALE TO
STORM FORCE WINDS TO MIX DOWN TO THE LAKE SURFACE. THE STRONGEST
WINDS ARE EXPECTED ACROSS THE NORTHERN TWO-THIRDS OF LAKE HURON
AND OVER OUTER SAGINAW BAY WITH GUSTS UP TO 55 KNOT STORMS LIKELY.
FURTHER SOUTH...GALE FORCE WIND GUSTS TO 45 KNOTS ARE EXPECTED FOR
THE REMAINDER OF LAKE HURON...AND GUSTS TO 35 KNOT GALES ARE
EXPECTED OVER LAKE ST CLAIR AND WESTERN LAKE ERIE. THE STRONG WINDS
WILL CONTINUE INTO SATURDAY BEFORE GRADUALLY DIMINISHING AS HIGH
PRESSURE BUILDS IN FROM THE WEST.

LHZ363-190930-
/O.UPG.KDTX.GL.W.0035.000000T0000Z-110219T2100Z/
/O.EXA.KDTX.SR.W.0002.000000T0000Z-110219T1500Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
421 PM EST FRI FEB 18 2011

...STORM WARNING IN EFFECT UNTIL 10 AM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
STORM WARNING...WHICH IS IN EFFECT UNTIL 10 AM EST SATURDAY. 

* WIND AND WAVES: DURING THE STORM WARNING...EXPECT SUSTAINED 
  WINDS UP TO 38 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 51 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 17 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 24 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 1 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 5 AM EST 
  SATURDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A STORM WARNING MEANS WINDS OF 48 TO 63 KNOTS ARE IMMINENT OR
OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN PORT...OR TAKE
SHELTER UNTIL WINDS AND WAVES SUBSIDE. COMMERCIAL VESSELS SHOULD
PREPARE FOR VERY STRONG WINDS AND DANGEROUS SEA CONDITIONS...AND
CONSIDER REMAINING IN PORT OR TAKING SHELTER IN PORT UNTIL WINDS
AND WAVES SUBSIDE.

&&

$$

LHZ421-190930-
/O.UPG.KDTX.GL.W.0035.000000T0000Z-110219T2100Z/
/O.EXB.KDTX.SR.W.0002.000000T0000Z-110219T2100Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-
421 PM EST FRI FEB 18 2011

...STORM WARNING IN EFFECT UNTIL 4 PM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
STORM WARNING...WHICH IS IN EFFECT UNTIL 4 PM EST SATURDAY. 

* WIND: DURING THE STORM WARNING...EXPECT SUSTAINED WINDS UP TO 28
  KNOTS FROM THE WEST WITH GUSTS UP TO 50 KNOTS.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 10 PM EST FRIDAY.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A STORM WARNING MEANS WINDS OF 48 TO 63 KNOTS ARE IMMINENT OR
OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN PORT...OR TAKE
SHELTER UNTIL WINDS AND WAVES SUBSIDE. COMMERCIAL VESSELS SHOULD
PREPARE FOR VERY STRONG WINDS AND DANGEROUS SEA CONDITIONS...AND
CONSIDER REMAINING IN PORT OR TAKING SHELTER IN PORT UNTIL WINDS
AND WAVES SUBSIDE.

&&

$$

LCZ460-LEZ444-190930-
/O.UPG.KDTX.BW.Y.0008.000000T0000Z-110219T1500Z/
/O.EXB.KDTX.GL.W.0035.000000T0000Z-110219T1500Z/
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
421 PM EST FRI FEB 18 2011

...GALE WARNING IN EFFECT UNTIL 10 AM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT UNTIL 10 AM EST SATURDAY. 

* WIND: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS UP TO 
  22 KNOTS FROM THE WEST WITH GUSTS UP TO 38 KNOTS. 

* TIMING: THE MAXIMUM WINDS ARE 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
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>443-462>464-190930-
/O.CON.KDTX.GL.W.0035.000000T0000Z-110219T2100Z/
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-
421 PM EST FRI FEB 18 2011

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST SATURDAY...

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

* WINDS: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS UP TO 35
  KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 45 KNOTS.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 4 AM EST SATURDAY.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
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.

&&

$$

LHZ422-190930-
/O.CON.KDTX.GL.W.0035.000000T0000Z-110219T2100Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
421 PM EST FRI FEB 18 2011

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST SATURDAY...

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

* WIND: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS UP TO 
  24 KNOTS FROM THE WEST WITH GUSTS UP TO 40 KNOTS. 

* TIMING: THE MAXIMUM WINDS ARE 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
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.

&&

$$

LHZ361-362-190930-
/O.CON.KDTX.SR.W.0002.000000T0000Z-110219T1500Z/
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-
421 PM EST FRI FEB 18 2011

...STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST SATURDAY...

A STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST SATURDAY. 

* WIND AND WAVES: DURING THE STORM WARNING...EXPECT SUSTAINED 
  WINDS UP TO 40 KNOTS FROM THE WEST WITH GUSTS UP TO 55 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 17 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 24 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 11 PM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 5 AM EST SATURDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A STORM WARNING MEANS WINDS OF 48 TO 63 KNOTS ARE IMMINENT OR
OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN PORT...OR TAKE
SHELTER UNTIL WINDS AND WAVES SUBSIDE. COMMERCIAL VESSELS SHOULD
PREPARE FOR VERY STRONG WINDS AND DANGEROUS SEA CONDITIONS...AND
CONSIDER REMAINING IN PORT OR TAKING SHELTER IN PORT UNTIL WINDS
AND WAVES SUBSIDE.

&&

$$

HLO

733 
WHUS73 KDTX 190830
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
330 AM EST SAT FEB 19 2011

...STORMS AND GALES TO GRADUALLY EASE THIS MORNING...

.STRONG WEST TO NORTHWEST FLOW WILL PERSIST THIS MORNING BEFORE
SHIFTING TO THE EAST LATER TODAY. THE STRONGEST WINDS WILL REMAIN
OVER NORTHERN LAKE HURON WHERE 40 KNOT GALES WILL GUST TO 50 KNOT
STORMS INTO THE MID MORNING. OVER SOUTHERN LAKE HURON...EXPECT
GUSTS TO 40 KNOT GALES...WITH GUSTS TO AROUND 35 KNOT GALES OVER
LAKE ST CLAIR AND WESTERN LAKE ERIE. WINDS WILL DECREASE QUICKLY
FROM THIS AFTERNOON INTO THE EVENING AS HIGH PRESSURE BUILDS INTO
THE REGION.

LHZ421-192030-
/O.CAN.KDTX.SR.W.0002.000000T0000Z-110219T2100Z/
/O.EXA.KDTX.GL.W.0035.000000T0000Z-110219T2100Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-
330 AM EST SAT FEB 19 2011

...GALE WARNING IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING...WHICH IS 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 45
  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 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 4 AM EST 
  SATURDAY. 

THE STORM WARNING HAS BEEN CANCELLED. 

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>443-462>464-192030-
/O.CON.KDTX.GL.W.0035.000000T0000Z-110219T2100Z/
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-
330 AM EST SAT FEB 19 2011

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

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 35 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 4 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 7 AM EST 
  SATURDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
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.

&&

$$

LHZ422-192030-
/O.CON.KDTX.GL.W.0035.000000T0000Z-110219T2100Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
330 AM EST SAT FEB 19 2011

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

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

* WIND: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS UP TO 
  22 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 35 KNOTS. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 3 AM EST 
  SATURDAY.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
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.

&&

$$

LCZ460-LEZ444-191500-
/O.CON.KDTX.GL.W.0035.000000T0000Z-110219T1500Z/
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
330 AM EST SAT FEB 19 2011

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING...

A GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING. 

* WIND: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS UP TO 
  21 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 35 KNOTS. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 3 AM EST 
  SATURDAY.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
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.

&&

$$

LHZ361>363-191500-
/O.CON.KDTX.SR.W.0002.000000T0000Z-110219T1500Z/
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-
330 AM EST SAT FEB 19 2011

...STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING...

A STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING. 

* WIND AND WAVES: DURING THE STORM WARNING...EXPECT SUSTAINED 
  WINDS UP TO 40 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 52 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 17 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 24 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 3 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 5 AM EST 
  SATURDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A STORM WARNING MEANS WINDS OF 48 TO 63 KNOTS ARE IMMINENT OR
OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN PORT...OR TAKE
SHELTER UNTIL WINDS AND WAVES SUBSIDE. COMMERCIAL VESSELS SHOULD
PREPARE FOR VERY STRONG WINDS AND DANGEROUS SEA CONDITIONS...AND
CONSIDER REMAINING IN PORT OR TAKING SHELTER IN PORT UNTIL WINDS
AND WAVES SUBSIDE.

&&

$$

000 
WHUS73 KDTX 191446
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
946 AM EST SAT FEB 19 2011

...WINDS WILL SLOWLY SUBSIDE...

.COLD NORTHWEST FLOW WILL PERSIST THROUGH EARLY AFTERNOON BEFORE
SHIFTING TO THE EAST RATHER QUICKLY. WIND GUSTS TO 40+ KNOTS HAVE
BEEN COMMON EARLY THIS MORNING.  HIGH PRESSURE WILL BRING MUCH
CALMER CONDITIONS LATE IN THE WEEKEND.

LHZ361>363-192100-
/O.CAN.KDTX.SR.W.0002.000000T0000Z-110219T1500Z/
/O.EXA.KDTX.GL.W.0035.000000T0000Z-110219T2100Z/
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-
946 AM EST SAT FEB 19 2011

...GALE WARNING IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 34 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 45 
  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 9 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 9 AM EST 
  SATURDAY. 

THE STORM WARNING HAS BEEN CANCELLED. 

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.

&&

$$

LCZ460-LEZ444-192100-
/O.CAN.KDTX.GL.W.0035.000000T0000Z-110219T1500Z/
/O.NEW.KDTX.BW.Y.0009.110219T1446Z-110219T2100Z/
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
946 AM EST SAT FEB 19 2011

...BRISK WIND ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
BRISK WIND ADVISORY...WHICH IS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON. 

* WIND: DURING THE BRISK WIND ADVISORY...EXPECT SUSTAINED WINDS 
  UP TO 21 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 29 KNOTS. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 9 AM EST 
  SATURDAY.

THE GALE WARNING HAS BEEN CANCELLED. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BRISK WIND ADVISORY MEANS THAT WINDS WILL REACH SMALL CRAFT
ADVISORY CRITERIA IN AREAS THAT ARE PRIMARILY ICE COVERED. MOVING
ICE FLOES COULD DAMAGE SMALL CRAFT.

&&

$$

LHZ421-422-192100-
/O.CAN.KDTX.GL.W.0035.000000T0000Z-110219T2100Z/
/O.NEW.KDTX.BW.Y.0009.110219T1446Z-110219T2100Z/
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-
946 AM EST SAT FEB 19 2011

...BRISK WIND ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
BRISK WIND ADVISORY...WHICH IS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON. 

* WIND: DURING THE BRISK WIND ADVISORY...EXPECT SUSTAINED WINDS 
  UP TO 24 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 34 KNOTS. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 9 AM EST 
  SATURDAY.

THE GALE WARNING HAS BEEN CANCELLED. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BRISK WIND ADVISORY MEANS THAT WINDS WILL REACH SMALL CRAFT
ADVISORY CRITERIA IN AREAS THAT ARE PRIMARILY ICE COVERED. MOVING
ICE FLOES COULD DAMAGE SMALL CRAFT.

&&

$$

LHZ441>443-462>464-192100-
/O.CON.KDTX.GL.W.0035.000000T0000Z-110219T2100Z/
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-
946 AM EST SAT FEB 19 2011

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

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 32 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 43 
  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 9 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 9 AM EST 
  SATURDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
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.

&&

$$

498 
WHUS73 KDTX 192040
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
340 PM EST SAT FEB 19 2011

...ANOTHER ROUND OF STRONG WINDS ON THE WAY...

.BRISK NORTHWEST FLOW IS QUICKLY RELAXING THIS AFTERNOON. LATEST
VISIBLE IMAGERY SHOWS THE IMPACT OF THE STRONG WIND EVENT AS THERE
IS A MARKED DECREASE IN THE ICE COVER ACROSS PORTIONS OF LAKE
HURON - WITH A FEW LARGE PIECES ADVANCING ACROSS THE OPEN WATERS
EAST OF THE THUMB. WINDS WILL VEER TO SOUTHEASTERLY AS HIGH
PRESSURE MIGRATES THROUGH THE REGION. THE NEXT STORM SYSTEM WILL
ADVANCE INTO THE SOUTHERN LAKES REGION LATE SUNDAY AND MONDAY. THE
PRESSURE GRADIENT WILL INCREASE SUBSTANTIALLY ALONG THE NORTHERN
FLANK OF THE SYSTEM...SETTING THE STAGE FOR STRONG EAST/NORTHEAST
WINDS. THE STRONGEST WINDS WILL OCCUR OVER LAKE HURON WHERE THE
EXPECTATION OF GALES EXISTS OVERNIGHT SUNDAY NIGHT AND THROUGH
MUCH OF THE DAY MONDAY.

LHZ361>363-441>443-462>464-200845-
/O.EXP.KDTX.GL.W.0035.000000T0000Z-110219T2100Z/
/O.NEW.KDTX.GL.A.0004.110221T0500Z-110222T0000Z/
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-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-
340 PM EST SAT FEB 19 2011

...GALE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY
EVENING...
...GALE WARNING WILL EXPIRE AT 4 PM EST THIS AFTERNOON...

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

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 32 KNOTS FROM THE NORTHEAST WITH GUSTS UP TO 44 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 4 AM EST MONDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 7 AM EST MONDAY.

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.

&&

$$

LHZ421-422-200845-
/O.EXP.KDTX.BW.Y.0009.000000T0000Z-110219T2100Z/
/O.NEW.KDTX.GL.A.0004.110221T0500Z-110222T0000Z/
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-
340 PM EST SAT FEB 19 2011

...GALE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY
EVENING...
...BRISK WIND ADVISORY WILL EXPIRE AT 4 PM EST THIS AFTERNOON...

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

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 29 KNOTS FROM THE NORTHEAST 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 3 AM EST MONDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 7 AM EST MONDAY.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WATCH IS ISSUED WHEN THE RISK OF GALE FORCE WINDS OF 34 TO
47 KNOTS HAS SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING
AND/OR LOCATION IS STILL UNCERTAIN. IT IS INTENDED TO PROVIDE
ADDITIONAL LEAD TIME FOR MARINERS WHO MAY WISH TO CONSIDER
ALTERING THEIR PLANS.

&&

$$

LCZ460-LEZ444-192145-
/O.EXP.KDTX.BW.Y.0009.000000T0000Z-110219T2100Z/
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
340 PM EST SAT FEB 19 2011

...BRISK WIND ADVISORY WILL EXPIRE AT 4 PM EST THIS AFTERNOON...

THE BRISK WIND ADVISORY WILL EXPIRE AT 4 PM EST THIS AFTERNOON. 

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
629 PM EST THU FEB 17 2011

.AVIATION...

WARM/MOIST LOW LEVEL CONDITIONS SUSTAINED BY PERSISTENT SOUTHWEST
FLOW WILL ENCOURAGE THE LOWERING OF CEILINGS WITH TIME AT ALL
TERMINALS THROUGH THE EARLY MORNING PERIOD.  LATEST SATELLITE TRENDS
CONTINUE TO INDICATE THIS DETERIORATION EVOLVING FROM NORTHWEST TO
SOUTHEAST AS DEEPER LOW LEVEL MOISTURE WORKS IN AND WILL REFINE THE
TIMING BASED ON THESE TRENDS.  THIS WILL BRING CEILINGS FROM HIGH
MVFR/VFR THIS EVENING TO BELOW 1500 FT THROUGH THE EARLY MORNING
PERIOD. THIS WILL BE ACCOMPANIED BY A REDUCTION IN VISIBILITY IN
LIGHT SHOWERS/DRIZZLE. BEST POTENTIAL FOR IFR CIGS WILL EXIST
FROM PTK NORTHWARD. DEEP DRYING AND STRONG SUBSIDENCE ACCOMPANYING
THE PASSAGE OF A STRONG COLD FRONT WILL BRING RAPID IMPROVEMENT IN
SKY CONDITIONS THROUGH MID-LATE MORNING. THE INCREASING DOWNWARD
MOTION AND MIXING WILL RESULT IN GUSTY WESTERLY WINDS ON FRIDAY.
PEAK AFTERNOON GUSTS WILL REACH INTO THE 32-37 KNOT RANGE...
HIGHEST TO THE NORTH.

&&

.PREV DISCUSSION...ISSUED 427 PM EST THU FEB 17 2011

SHORT TERM...TONIGHT

SOUTHEAST MICHIGAN HAS RESIDED IN THE WARM SECTOR OF AN EXPANSIVE
LOW PRESSURE SYSTEM CENTERED OVER MINNESOTA TODAY. A CONTINUED
SUPPLY OF SOUTHERLY FLOW HAS BOOSTED TEMPERATURES TO 15 TO 20
DEGREES ABOVE NORMAL WITH RECORD HIGHS ALREADY FALLING AT FNT (CURRENTLY 54
WITH PREVIOUS RECORD OF 51/1927) AND MBS (CURRENTLY 52 WITH PREVIOUS
RECORD OF 48/1911). DETROIT'S RECORD OF 59 DEGREES FROM 1911 SHOULD
BE SAFE AS OVERCAST SKIES HAVE HELD THROUGH THE DAY AND LIMITED
POTENTIAL WARMING.

WATER VAPOR IMAGERY SHOWS LEADING SHORTWAVES LIFTING THROUGH
THE MIDWEST TODAY...WITH A MORE COMPACT UPPER LEVEL WAVE OVER THE
DAKOTAS. A 140 KNOT UPPER LEVEL JET MOVING THROUGH THE BROAD
SOUTHWESTERLY FLOW WILL FORCE THIS WAVE TO BECOME NEGATIVELY TILTED
AS IT LIFTS TO LAKE SUPERIOR OVERNIGHT. AT THE SURFACE THE LOW
PRESSURE SYSTEM WILL DEEPEN AS IT TRACKS NORTHEAST INTO ONTARIO...
BECOMING STRONGLY OCCLUDED WITH THE TRAILING COLD FRONT OVER THE
FORECAST AREA BY 12Z FRIDAY. FOR TONIGHT...REGIONAL RADARS SHOWS
SHOWERS DEVELOPING BACK TOWARDS CHICAGO IN AN AREA OF DEEP THETA-E
ADVECTION THROUGH 700MB ON THE NOSE OF A 50+ KNOT LOW LEVEL JET.
THIS JET IS EXPECTED TO LIFT NORTHEAST OVER LOWER MICHIGAN THIS
EVENING...WITH LIGHT RAIN SHOWERS DEVELOPING. MOST LIKELY TIME FRAME
FOR LIGHT SHOWERS IS FROM 01-06Z AS THE THETA-E RIDGE BECOMES
INCREASINGLY THIN AHEAD OF A MID LEVEL PUSH OF DRY AIR THAT WILL GET
WRAPPED INTO THE SYSTEM FROM THE WEST AFTER MIDNIGHT. QPF SHOULD
STILL BE LIGHT WITH LESS THAN A TENTH OF AN INCH EXPECTED. CEILINGS
AND VISIBILITIES ARE CONSIDERABLY LOWER TO OUR NORTHWEST WITH MOST
OF NORTHERN LOWER REPORTING CEILINGS BELOW 1000 FEET. THE LIGHT RAIN
AND LOWERING INVERSION HEIGHTS IMMEDIATELY AHEAD OF THE COLD FRONT
SHOULD BRING A WARM AND DAMP NIGHT. DEWPOINTS WILL HOLD IN THE 40S
UNTIL LATE AND PATCHY FOG WILL ALSO BE POSSIBLE. TEMPERATURES IN
INDIANA ARE IN THE UPPER 50S AND WE COULD SEE A BRIEF RISE IN
TEMPERATURES...ESPECIALLY ACROSS THE SOUTH THIS EVENING.
TEMPERATURES SHOULD FINALLY START TO FALL LATE TONIGHT BEHIND COLD
FRONT. TEMPERATURES WILL BE FALLING INTO TOMORROW MORNING SO TRYING
TO DETERMINE A MIN TEMPERATURE PRIOR TO 12Z IS A CHALLENGE.
GENERALLY EXPECTING A GRADIENT RANGING FROM THE UPPER 30S IN THE
SAGINAW VALLEY TO THE MID/UPPER 40S ALONG THE DETROIT RIVER/LAKE
ERIE.

LONG TERM...SATURDAY THROUGH NEXT THURSDAY

STRONG UPPER WAVE AND LEFT EXIT REGION OF A JET STREAK WILL CROSS
THE WESTERN AND CENTRAL GREAT LAKES TOMORROW...WITH THE WAVE ALSO
TAKING ON A POSITIVE TILT. THIS WILL BRING QUICK HEIGHT FALLS
OVER THE NORTHERN GREAT LAKES...DEEPENING THE AREA OF SURFACE LOW
PRESSURE AS IT LIFTS FROM ONTARIO INTO HUDSON BAY. COLD FRONT WILL
PUSH ACROSS THE AREA DURING THE EARLY MORNING HOURS...WITH DEEPENING
LAYER OF COLD AIR ADVECTION BRINGING FALLING TEMPERATURES AND AN
INCREASE IN WINDS/GUSTS AS THE MIXED LAYER DEEPENS. HIGHEST GUSTS
LOOK TO BE ACROSS THE TRI-CITIES AND THUMB...WITH CURRENT FORECAST
ANTICIPATING GUSTS 35-40 MPH. CANNOT COMPLETELY RULE OUT A FEW GUSTS
TO 45 MPH HOWEVER. MODELS INITIALIZED WELL UPSTREAM WITH 925-850MB
WINDS AT 12Z WHEN COMPARED TO AM RAOBS...BUT DIFFER WITH SPEEDS IN
THE WIND CORE BY TOMORROW AFTERNOON...LEADING TO SOME UNCERTAINTY
WITH MAX GUST POTENTIAL. DESCENT AND DRIER AIR BEHIND THE FRONT WILL
ALSO ALLOW SKIES TO BECOME MOSTLY SUNNY BY AFTERNOON. MOSTLY CLEAR
SKIES AND CONTINUED COLD AIR ADVECTION OVERNIGHT WILL BE COUNTERED
BY A TIGHT PRESSURE GRADIENT KEEPING BREEZY CONDITIONS AROUND...ONLY
ALLOWING LOW TEMPERATURES TO FALL INTO THE 20S.

HIGH PRESSURE AND UPPER RIDGING WILL MIGRATE ACROSS THE REGION
SATURDAY AND SATURDAY NIGHT. THIS WILL BRING DRY WEATHER WITH
SEASONABLE TEMPERATURES.

COLLECTION OF SHORTWAVES EMBEDDED WITHIN THE MEAN TROUGH STRETCHING
FROM THE GULF OF ALASKA TO OFF THE BAJA COAST WILL CONSOLIDATE AND
MOVE INLAND OVER THE WEEKEND. RESULTING MEAN UPPER TROUGH WILL THEN
SLOWLY TRACK EAST...WITH MAIN AREA OF SHORTWAVE ENERGY EXPECTING TO
LIFT ACROSS THE GREAT LAKES EARLY NEXT WEEK. MEDIUM RANGE MODELS ARE
STILL SHOWING QUITE A BIT OF VARIANCE BOTH RUN TO RUN AND MODEL TO
MODEL WITH HOW FAR NORTH THEY TRACK THIS ENERGY...AND ESPECIALLY THE
SURFACE LOW. 12Z EURO EVEN DEPICTS UPPER ENERGY (AND RESULTING
SURFACE LOW PRESSURE) REMAINING SPLIT INTO TWO CHUNKS AND BRINGS
PRECIPITATION TO LOWER MICHIGAN IN TWO SEPARATE ROUNDS. WHILE IT
DOES APPEAR LIKELY FOR MOISTURE AND PRECIPITATION TO SPREAD INTO
SOUTHEAST MICHIGAN SUNDAY MORNING THROUGH MONDAY MORNING
(GFS/NAM/GEM)...VARIANCES IN TRACK MAKE FOR A LOW CONFIDENCE
FORECAST WITH PRECIPITATION TYPE AND AMOUNT. 12Z MODEL CONSENSUS
(NOT INCLUDING THE EURO) MADE A NOTICEABLE SHIFT TO THE NORTH...BUT
THIS IS ONLY AFTER A NOTICEABLE SHIFT HAD BEEN MADE TO THE SOUTH
OVER THE PREVIOUS 24 HOURS. MOST MODELS STILL SUPPORT A COMBINATION
OF RAIN AND SNOW...WITH THE WARMER GFS NOW SPREADING RAIN UP THROUGH
THE TRI-CITIES AND THUMB BY SUNDAY EVENING. ADDING TO THE CONCERN OF
UNCERTAIN PRECIP TYPE...GFS ALSO SHOWS GOOD SUPPORT FOR A SEVERAL
HOURS WINDOW OF FREEZING RAIN. WILL NEED TO WATCH THIS DEVELOPING
SYSTEM VERY CLOSELY...AND HOPE FOR BETTER CONSENSUS OVER THE NEXT
24-36 HOURS AS UPPER LEVEL FEATURES START TO BECOME SAMPLED BY UPPER
AIR DATA. COLD FRONT SHOULD PUSH THROUGH THE AREA ON MONDAY...ENDING
PRECIPITATION AND USHERING IN A PERIOD OF DRIER WEATHER BY TUESDAY
AND WEDNESDAY.

MARINE...

AREAS OF FOG WITH LIGHT RAIN SHOWERS ARE POSSIBLE OVERNIGHT AS A
WARM AND STABLE AIRMASS RESIDES OVER THE CENTRAL GREAT LAKES IN
ADVANCE OF A STRONG LOW PRESSURE SYSTEM OVER THE UPPER MIDWEST. THIS
SYSTEM WILL TRACK NORTHEAST INTO ONTARIO OVERNIGHT...PULLING A
STRONG COLD FRONT THROUGH THE CENTRAL GREAT LAKES ON FRIDAY. COLD
AIR WILL USHER OVER THE LAKE THROUGH FRIDAY NIGHT LEADING TO
INCREASINGLY UNSTABLE CONDITIONS WITH GALE TO STORM FORCE WIND GUSTS
EXPECTED. THE WINDS ARE EXPECTED TO BE STRONGEST ACROSS THE NORTHERN
HALF OF THE LAKE AS THE FRONT DRIVES THE COLDEST AIR INTO THAT
AREA...WHERE GUSTS TO 50 KNOTS ARE POSSIBLE. THE COLD AIR IS
EXPECTED TO DEEPEN THE GUST POTENTIAL AND CONNECT IT WITH WINDS FROM
OVER LAKE SUPERIOR DURING FRIDAY INTO FRIDAY NIGHT. THE GALE WATCH
HAS ALSO BEEN EXPANDED TO INCLUDE THE SAGINAW BAY AND ALL OF
SOUTHERN LAKE HURON. THE GALE WATCH HAS BEEN ADJUSTED TO START BY 11
AM AS OFFSHORE GUSTS COMING OFF THE LAND SHOULD PROVIDE SOME HIGHER
GUST POTENTIAL EARLIER IN THE DAY...EVEN BEFORE THE COLD AIR REACHES
THE SOUTHERN PORTION OF THE LAKE. THE PEAK TIME FOR THE STRONGEST
WINDS ACROSS NORTHERN LAKE HURON REMAIN ON FRIDAY NIGHT.

CONDITIONS WILL THEN IMPROVE QUICKLY BUT TEMPORARILY SATURDAY AS
HIGH PRESSURE BUILDS INTO THE REGION ONLY TO BE FOLLOWED BY THE NEXT
LOW PRESSURE SYSTEM SUNDAY.

&&

.DTX WATCHES/WARNINGS/ADVISORIES...
MI...NONE.

LAKE HURON...
     STORM WATCH...LHZ361-LHZ362...FROM 4 PM FRIDAY TO 10 AM SATURDAY.

     GALE WATCH...LHZ363-LHZ441-LHZ442-LHZ443-LHZ462-LHZ463-
     LHZ464...FROM 11 AM FRIDAY TO 4 PM SATURDAY.

     GALE WATCH...SAGINAW BAY...FROM 11 AM FRIDAY TO 10 AM SATURDAY.

LAKE ST CLAIR...NONE.
MI WATERS OF LAKE ERIE...NONE.

&&

AVIATION.....MR
SHORT TERM...KEC
LONG TERM....HLO
MARINE.......KEC

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

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
437 PM EST THU FEB 17 2011

MIZ047>049-053>055-060>063-068>070-075-076-082-083-182145-
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER-
ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE-
437 PM EST THU FEB 17 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
MICHIGAN.

.DAY ONE...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.

LHZ363-421-422-441>443-462>464-182145-
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-
437 PM EST THU FEB 17 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE HURON.

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A GALE WATCH IS IN EFFECT FROM EARLY FRIDAY AFTERNOON INTO
SATURDAY FOR THE SOUTHERN HALF OF LAKE HURON...INCLUDING THE
NEARSHORE WATERS. PLEASE SEE THE LATEST MARINE FORECASTS AND
WEATHER MESSAGES FOR MORE INFORMATION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

LHZ361-362-182145-
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-
437 PM EST THU FEB 17 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE HURON.

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A STORM WATCH IS IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY
MORNING FOR THE NORTHERN PORTION OF LAKE HURON. GALE FORCE WIND
GUSTS ARE POSSIBLE ON SATURDAY MORNING BEFORE THE STORM WATCH
TAKES EFFECT...AND AGAIN ON SATURDAY AFTERNOON AFTER THE STORM
WATCH EXPIRES. PLEASE SEE THE LATEST MARINE FORECASTS AND
WEATHER MESSAGES FOR MORE INFORMATION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

LCZ422-423-460-LEZ444-182145-
ST. CLAIR RIVER-DETROIT RIVER-LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
437 PM EST THU FEB 17 2011

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

.DAY ONE...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.

HLO

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