Storm Warning 1, NWS Detroit, MI

788 
WHUS73 KDTX 102042
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
442 PM EDT TUE MAR 10 2009

...GALE AND STORM FORCE WINDS EXPECTED LATE TONIGHT AND WEDNESDAY...

.A RAPIDLY DEEPENING SURFACE LOW IS FORECAST TO TRACK ACROSS THE
NORTHERN GREAT LAKES TONIGHT AND THEN INTO CANADA ON WEDNESDAY.
THIS SYSTEM WILL SEND AN ASSOCIATED COLD FRONT ACROSS THE REGION
LATE TONIGHT. VERY STRONG LOW LEVEL COLD AIR ADVECTION AND A
STRENGTHENING GRADIENT WILL SUPPORT STORM FORCE WIND GUSTS OVER
LAKE HURON LATE TONIGHT INTO WEDNESDAY MORNING AND HIGH END GALE
FORCE WINDS ACROSS THE REST OF THE MARINE AREAS.

LHZ363-110845-
/O.UPG.KDTX.GL.W.0010.090311T0600Z-090311T2000Z/
/O.EXA.KDTX.SR.W.0001.090311T0600Z-090311T2000Z/
/O.CON.KDTX.UP.W.0005.090311T0600Z-090311T2000Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
442 PM EDT TUE MAR 10 2009

...STORM WARNING IN EFFECT FROM 2 AM TO 4 PM EDT WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 2 AM TO
4 PM EDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
STORM WARNING...WHICH IS IN EFFECT FROM 2 AM TO 4 PM EDT
WEDNESDAY. THE GALE WARNING IS NO LONGER IN EFFECT. A HEAVY
FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 2 AM TO 4 PM EDT
WEDNESDAY. 

WEST TO SOUTHWEST STORM FORCE WIND GUSTS WILL DEVELOP LATE
TONIGHT AND CONTINUE INTO WEDNESDAY.

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 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.

&&

$$

LHZ421-422-441>443-462>464-110845-
/O.UPG.KDTX.GL.W.0010.090311T0600Z-090311T2000Z/
/O.EXA.KDTX.SR.W.0001.090311T0600Z-090311T2000Z/
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-
442 PM EDT TUE MAR 10 2009

...STORM WARNING IN EFFECT FROM 2 AM TO 4 PM EDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
STORM WARNING...WHICH IS IN EFFECT FROM 2 AM TO 4 PM EDT
WEDNESDAY. THE GALE WARNING IS NO LONGER IN EFFECT. 

WEST TO SOUTHWEST STORM FORCE WIND GUSTS WILL DEVELOP LATE
TONIGHT AND CONTINUE INTO WEDNESDAY.

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-LEZ444-110845-
/O.CON.KDTX.GL.W.0010.090311T0600Z-090311T2000Z/
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
442 PM EDT TUE MAR 10 2009

...GALE WARNING REMAINS IN EFFECT FROM 2 AM TO 4 PM EDT
WEDNESDAY...

A GALE WARNING REMAINS IN EFFECT FROM 2 AM TO 4 PM EDT WEDNESDAY.

SOUTHWEST GALE FORCE WINDS UP TO 45 KNOTS WILL DEVELOP LATE
TONIGHT AND CONTINUE INTO WEDNESDAY.

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.

&&

$$

LHZ361-362-110845-
/O.CON.KDTX.SR.W.0001.090311T0600Z-090311T2000Z/
/O.CON.KDTX.UP.W.0005.090311T0600Z-090311T2000Z/
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-
442 PM EDT TUE MAR 10 2009

...STORM WARNING REMAINS IN EFFECT FROM 2 AM TO 4 PM EDT
WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 2 AM TO
4 PM EDT WEDNESDAY...

A HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 2 AM TO
4 PM EDT WEDNESDAY. A STORM WARNING REMAINS IN EFFECT FROM 2 AM
TO 4 PM EDT WEDNESDAY. 

WEST TO SOUTHWEST STORM FORCE WIND GUSTS WILL DEVELOP LATE
TONIGHT AND CONTINUE INTO WEDNESDAY.

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 EQUIPPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

809 
WHUS73 KDTX 110805
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
405 AM EDT WED MAR 11 2009

...GALE AND STORM FORCE WINDS EXPECTED TODAY...

.A DEEPENING SURFACE LOW WILL TRACK FROM LAKE SUPERIOR EARLY THIS 
MORNING INTO NORTHERN QUEBEC BY EVENING. A COLD FRONT IS ALREADY 
PROGRESSING ACROSS THE EASTERN GREAT LAKES. COLD AIR ADVECTION IN 
THE WAKE OF THIS FRONT IS HELPING TO MIX STRONG WINDS DOWN TO THE 
SURFACE. THE LATEST MODEL SOUNDINGS CONTINUE TO INDICATE THE 
POTENTIAL FOR GUSTS TO 45 TO 50 KNOTS OVER LAKE HURON...WHICH 
JUSTIFIES THE CURRENT STORM WARNING OVER THE LAKE. WINDS WILL 
GRADUALLY DECREASE LATE TODAY INTO THURSDAY MORNING AS HIGH PRESSURE 
BUILDS IN FROM THE WEST. THIS HIGH WILL LINGER OVER THE REGION 
THROUGH THE END OF THE WEEK. 

LCZ460-LEZ444-112000-
/O.CON.KDTX.GL.W.0010.000000T0000Z-090311T2000Z/
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
405 AM EDT WED MAR 11 2009

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

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

SOUTHWEST GALE FORCE WINDS UP TO 40 KNOTS WILL PERSIST INTO THE
AFTERNOON. 

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>363-112000-
/O.CON.KDTX.SR.W.0001.000000T0000Z-090311T2000Z/
/O.CON.KDTX.UP.W.0005.000000T0000Z-090311T2000Z/
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-
405 AM EDT WED MAR 11 2009

...STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 PM EDT
THIS AFTERNOON...

A HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 PM EDT
THIS AFTERNOON. A STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EDT
THIS AFTERNOON. 

WEST TO SOUTHWEST STORM FORCE WIND GUSTS WILL AFFECT THE AREA TODAY.

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 EQUIPPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

LHZ421-422-441>443-462>464-112000-
/O.CON.KDTX.SR.W.0001.000000T0000Z-090311T2000Z/
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-
405 AM EDT WED MAR 11 2009

...STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

A STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON. 

WEST TO SOUTHWEST STORM FORCE WIND GUSTS WILL AFFECT THE AREA
TODAY. 

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.

&&

$$

594 
WHUS73 KDTX 110839
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
439 AM EDT WED MAR 11 2009

...GALE AND STORM FORCE WINDS EXPECTED TODAY...

.A DEEPENING SURFACE LOW WILL TRACK FROM LAKE SUPERIOR EARLY THIS
MORNING INTO NORTHERN QUEBEC BY EVENING. A COLD FRONT IS ALREADY
PROGRESSING ACROSS THE EASTERN GREAT LAKES. COLD AIR ADVECTION IN
THE WAKE OF THIS FRONT IS HELPING TO MIX STRONG WINDS DOWN TO THE
SURFACE. THE LATEST MODEL SOUNDINGS CONTINUE TO INDICATE THE
POTENTIAL FOR GUSTS TO 45 TO 50 KNOTS OVER LAKE HURON...WHICH
JUSTIFIES THE CURRENT STORM WARNING OVER THE LAKE. WINDS WILL
GRADUALLY DECREASE LATE TODAY INTO THURSDAY MORNING AS HIGH
PRESSURE BUILDS IN FROM THE WEST. THIS HIGH WILL LINGER OVER THE
REGION THROUGH THE END OF THE WEEK.

LCZ460-LEZ444-112000-
/O.CON.KDTX.GL.W.0010.000000T0000Z-090311T2000Z/
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
439 AM EDT WED MAR 11 2009

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

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

SOUTHWEST GALE FORCE WINDS UP TO 40 KNOTS WILL PERSIST INTO THE
AFTERNOON.

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>363-112000-
/O.CON.KDTX.SR.W.0001.000000T0000Z-090311T2000Z/
/O.CON.KDTX.UP.W.0005.000000T0000Z-090311T2000Z/
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-
439 AM EDT WED MAR 11 2009

...STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 PM EDT
THIS AFTERNOON...

A HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 PM EDT
THIS AFTERNOON. A STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EDT
THIS AFTERNOON. 

WEST TO SOUTHWEST STORM FORCE WIND GUSTS WILL AFFECT THE AREA
TODAY.

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 EQUIPPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

LHZ422-112000-
/O.NEW.KDTX.LO.Y.0002.090311T0839Z-090311T2000Z/
/O.CON.KDTX.SR.W.0001.000000T0000Z-090311T2000Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
439 AM EDT WED MAR 11 2009

...LOW WATER ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON...
...STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A LOW
WATER ADVISORY...WHICH IS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON. A STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON. 

WEST TO SOUTHWEST STORM FORCE WIND GUSTS WILL AFFECT THE AREA
TODAY. AT 430 AM...THE WATER LEVEL WAS 8 INCHES BELOW CHART DATUM
AT ESSEXVILLE. THE WATER LEVEL IS FORECAST TO DROP TO 24 INCHES
BELOW CHART DATUM BY 11 AM THIS MORNING. THE WATER LEVEL WILL
SLOWLY COME BACK UP THIS AFTERNOON AS WINDS DECREASE AND TURN TO A
MORE WESTERLY DIRECTION. 

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.

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>443-462>464-112000-
/O.CON.KDTX.SR.W.0001.000000T0000Z-090311T2000Z/
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-
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-
439 AM EDT WED MAR 11 2009

...STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

A STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON. 

WEST TO SOUTHWEST STORM FORCE WIND GUSTS WILL AFFECT THE AREA
TODAY.

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.

&&

$$

518 
WHUS73 KDTX 111351
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
951 AM EDT WED MAR 11 2009

...WINDS SLOWLY DECREASING THROUGH TONIGHT...

.WINDS WILL SLOWLY DIMINISH THROUGH TONIGHT AS STRONG LOW
PRESSURE OVER EASTERN CANADA CONTINUES TO MOVE AWAY FROM THE
AREA...WITH HIGH PRESSURE BUILDING INTO THE SOUTHERN GREAT LAKES
BY TOMORROW NIGHT. 

LHZ363-120200-
/O.CAN.KDTX.SR.W.0001.000000T0000Z-090311T2000Z/
/O.EXB.KDTX.GL.W.0010.000000T0000Z-090312T0400Z/
/O.CON.KDTX.UP.W.0005.000000T0000Z-090311T2000Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
951 AM EDT WED MAR 11 2009

...GALE WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 PM EDT
THIS AFTERNOON...
...STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT. THE
STORM WARNING HAS BEEN CANCELLED. A HEAVY FREEZING SPRAY WARNING
REMAINS IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON. 

WESTERLY GALE FORCE WINDS WILL CONTINUE INTO THE EVENING. 

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
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.

&&

$$

LHZ422-112200-
/O.CAN.KDTX.SR.W.0001.000000T0000Z-090311T2000Z/
/O.EXB.KDTX.GL.W.0010.000000T0000Z-090311T2200Z/
/O.CON.KDTX.LO.Y.0002.000000T0000Z-090311T2000Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
951 AM EDT WED MAR 11 2009

...GALE WARNING IN EFFECT UNTIL 6 PM EDT THIS EVENING...
...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...
...STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT UNTIL 6 PM EDT THIS EVENING. THE
STORM WARNING HAS BEEN CANCELLED. A LOW WATER ADVISORY REMAINS IN
EFFECT UNTIL 4 PM EDT THIS AFTERNOON. 

WESTERLY GALE FORCE WINDS WILL CONTINUE THROUGH LATE THIS
AFTERNOON. AT 9 AM...THE WATER LEVEL WAS 20 INCHES BELOW CHART
DATUM AT ESSEXVILLE. THE WATER LEVEL SHOULD BOTTOM OUT AROUND 2
FEET BELOW CHART DATUM LATE THIS MORNING....THEN RISE THROUGH THE
AFTERNOON. 

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.

&&

$$

LHZ462>464-120200-
/O.CAN.KDTX.SR.W.0001.000000T0000Z-090311T2000Z/
/O.EXB.KDTX.GL.W.0010.000000T0000Z-090312T0400Z/
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-
951 AM EDT WED MAR 11 2009

...GALE WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT. THE
STORM WARNING HAS BEEN CANCELLED. 

WESTERLY GALE FORCE WINDS WILL CONTINUE THROUGH THIS EVENING. 

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.

&&

$$

LHZ421-441>443-112200-
/O.CAN.KDTX.SR.W.0001.000000T0000Z-090311T2000Z/
/O.EXB.KDTX.GL.W.0010.000000T0000Z-090311T2200Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-
951 AM EDT WED MAR 11 2009

...GALE WARNING IN EFFECT UNTIL 6 PM EDT THIS EVENING...
...STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT UNTIL 6 PM EDT THIS EVENING. THE
STORM WARNING HAS BEEN CANCELLED. 

WESTERLY GALE FORCE WINDS WILL CONTINUE THROUGH LATE THIS
AFTERNOON. 

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-LEZ444-112000-
/O.CON.KDTX.GL.W.0010.000000T0000Z-090311T2000Z/
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
951 AM EDT WED MAR 11 2009

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

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

WESTERLY GALE FORCE WINDS UP TO 40 KNOTS WILL CONTINUE INTO THE
AFTERNOON.

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.

&&

$$

LHZ361-362-112000-
/O.CON.KDTX.SR.W.0001.000000T0000Z-090311T2000Z/
/O.CON.KDTX.UP.W.0005.000000T0000Z-090311T2000Z/
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-
951 AM EDT WED MAR 11 2009

...STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 PM EDT
THIS AFTERNOON...

A HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 PM EDT
THIS AFTERNOON. A STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EDT
THIS AFTERNOON. 

WESTERLY STORM FORCE WINDS WILL CONTINUE INTO THE AFTERNOON. 

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 EQUIPPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

587 
WHUS73 KDTX 111941
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
341 PM EDT WED MAR 11 2009

...WINDS SLOWLY DECREASING THROUGH TONIGHT...

.WINDS WILL SLOWLY DIMINISH THROUGH TONIGHT AS STRONG LOW
PRESSURE OVER EASTERN CANADA CONTINUES TO MOVE AWAY FROM THE
AREA...WITH HIGH PRESSURE BUILDING INTO THE SOUTHERN GREAT LAKES
BY TOMORROW NIGHT.

LHZ361-362-120745-
/O.CAN.KDTX.SR.W.0001.000000T0000Z-090311T2000Z/
/O.EXT.KDTX.UP.W.0005.000000T0000Z-090312T1200Z/
/O.EXB.KDTX.GL.W.0010.090311T2000Z-090312T0800Z/
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-
341 PM EDT WED MAR 11 2009

...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT UNTIL 8 AM EDT
THURSDAY...
...GALE WARNING IN EFFECT UNTIL 4 AM EDT THURSDAY...
...STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT UNTIL 4 AM EDT THURSDAY. THE STORM
WARNING HAS BEEN CANCELLED. THE HEAVY FREEZING SPRAY WARNING IS
NOW IN EFFECT UNTIL 8 AM EDT THURSDAY. 

WESTERLY GALES AROUND 45 KNOTS LATE THIS AFTERNOON WILL SLOWLY
DECREASE THIS EVENING AND TONIGHT. 

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 EQUIPPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

LHZ422-120400-
/O.CAN.KDTX.GL.W.0010.000000T0000Z-090311T2200Z/
/O.NEW.KDTX.BW.Y.0020.090311T1941Z-090312T0400Z/
/O.CAN.KDTX.LO.Y.0002.000000T0000Z-090311T2000Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
341 PM EDT WED MAR 11 2009

...BRISK WIND ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...GALE WARNING IS CANCELLED...
...LOW WATER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
BRISK WIND ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT EDT
TONIGHT. THE GALE WARNING HAS BEEN CANCELLED. THE LOW WATER
ADVISORY HAS BEEN CANCELLED. 

WESTERLY WIND GUSTS AROUND 30 KNOTS LATE THIS AFTERNOON WILL
DIMINISH THIS EVENING. AT 3 PM...THE WATER LEVEL WAS 5 INCHES
BELOW CHART DATUM AT ESSEXVILLE AND RISING. 

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.

&&

$$

LCZ460-LEZ444-120400-
/O.CAN.KDTX.GL.W.0010.000000T0000Z-090311T2000Z/
/O.NEW.KDTX.BW.Y.0020.090311T2000Z-090312T0400Z/
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
341 PM EDT WED MAR 11 2009

...BRISK WIND ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
BRISK WIND ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT EDT
TONIGHT. THE GALE WARNING HAS BEEN CANCELLED. 

WESTERLY WINDS GUSTING TO 30 KNOTS WILL SLOWLY DIMINISH THIS
EVENING.

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.

&&

$$

LHZ421-441>443-120400-
/O.CAN.KDTX.GL.W.0010.000000T0000Z-090311T2200Z/
/O.NEW.KDTX.BW.Y.0020.090311T1941Z-090312T0400Z/
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-
341 PM EDT WED MAR 11 2009

...BRISK WIND ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
BRISK WIND ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT EDT
TONIGHT. THE GALE WARNING HAS BEEN CANCELLED. 

WESTERLY WINDS GUSTING TO 30 KNOTS WILL SLOWLY DIMINISH THIS
EVENING.

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.

&&

$$

LHZ363-120745-
/O.EXT.KDTX.UP.W.0005.000000T0000Z-090312T1200Z/
/O.CON.KDTX.GL.W.0010.000000T0000Z-090312T0400Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
341 PM EDT WED MAR 11 2009

...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT UNTIL 8 AM EDT
THURSDAY...
...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

THE HEAVY FREEZING SPRAY WARNING IS NOW IN EFFECT UNTIL 8 AM EDT
THURSDAY. A GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT
TONIGHT. 

WESTERLY GALE FORCE WINDS WILL CONTINUE INTO THE EVENING.

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 EQUIPPED TO DO SO...REMAIN IN PORT OR AVOID THE
WARING AREA.

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.

&&

$$

LHZ462>464-120400-
/O.CON.KDTX.GL.W.0010.000000T0000Z-090312T0400Z/
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-
341 PM EDT WED MAR 11 2009

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

A GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT. 

WESTERLY GALE FORCE WINDS WILL CONTINUE THROUGH THIS EVENING.

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.

&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
413 AM EDT TUE MAR 10 2009

.SHORT TERM...TODAY AND TONIGHT

ANOTHER ACTIVE SHORT TERM IS EXPECTED WITH ADDITIONAL FLOODING STILL
OF CONCERN IN ADDITION TO STRONG WINDS LATE TONIGHT INTO WEDNESDAY.
DEEP LAYER MOISTURE TRANSPORT IS ALREADY EXPANDING INTO THE STATE
FROM THE WEST. FAIRLY STRONG ISENTROPIC ASCENT IS DRIVING THIS AREA
OF RAIN. THIS FORCING IS FORECAST TO TRACK ACROSS SOUTHERN MICHIGAN
THIS MORNING AND PERSIST INTO THE AFTERNOON. MODEL SOUNDINGS
INDICATE WET BULB COOLING POTENTIAL DUE TO THE INITIAL LOW TO MID
LEVEL DRY AIR OVER THE EASTERN LAKES MAY ALLOW SOME SNOW TO MIX IN
AT THE ONSET. WET BULB ZERO HEIGHTS ACTUALLY REMAIN QUITE LOW ACROSS
THE THUMB THROUGH A GOOD PORTION OF THE MORNING...SO WILL ADD SOME
MINOR ACCUMULATIONS IN THIS AREA. THERMAL PROFILES THEN WARM
CONSIDERABLY DURING THE DAY WITH INCREASED MOISTURE ADVECTION.

THE DEEP MID LEVEL TROUGH NOW OVER THE FOUR CORNERS REGION IS
FORECAST TO LIFT INTO THE CENTRAL PLAINS THIS AFTERNOON...ALLOWING
THE SURFACE LOW NOW OVER EASTERN KANSAS TO LIFT INTO WISCONSIN BY
EVENING. THIS WILL SUSTAIN 40 TO 50 KNOT LOW LEVEL INFLOW INTO THE
NORTHERN OHIO VALLEY/SOUTHERN LAKES REGION THROUGHOUT THE DAY. THE
STRONGEST MOISTURE CONVERGENCE AND BETTER INFLUX OF MID LEVEL
INSTABILITY WILL BE FOCUSED ACROSS FAR NORTHERN INDIANA AND
OHIO...WHICH WILL ALLOW THE HEAVIEST RAINFALL TO OCCUR FROM THE
DETROIT METRO AREA SOUTH THIS AFTERNOON. ALL MODEL SOLUTIONS
CONTINUE TO SHOW THE MID LEVEL WAVE AMPLIFYING AND BECOMING
NEGATIVELY TILTED AS IT LIFTS INTO THE NORTHERN GREAT LAKES TONIGHT.
THIS ALONG WITH STRONG EXIT REGION DYNAMICS WILL ALLOW THE SURFACE
LOW TO RAPIDLY DEEPEN AS IT MOVES ACROSS THE NORTHERN GREAT LAKES
TONIGHT. IN RESPONSE AN ADDITIONAL SURGE OF LOW LEVEL THETA E AND
ELEVATED INSTABILITY WILL LIFT INTO SE MICHIGAN. VERY ROBUST
850-500MB LAYER FRONTOGENESIS WILL SUPPORT ADDITIONAL CONVECTION
THROUGH THE EVENING...WITH AGAIN THE BEST CONVECTIVE POTENTIAL
FOCUSED FROM THE DETROIT AREA SOUTH.

OVERALL MODEL QPF RANGES FROM AROUND AN INCH ALONG THE M 59 CORRIDOR
TO ALMOST 2 INCHES NEAR THE STATE LINE. IN CONSIDERING ALL THE RAIN
FROM THIS PAST WEEKEND...THE CURRENT FLOOD WATCH REMAINS JUSTIFIED.
GIVEN THE QPF POTENTIAL ALONG THE M-59 CORRIDOR...WILL ACTUALLY
EXPAND THE FLOOD WATCH ONE ROW OF COUNTIES FARTHER NORTH. MODEL QPF
IS GENERALLY A HALF AN INCH OR LESS FROM FLINT NORTH...SO DO NOT SEE
THE NEED TO GO ANY FARTHER NORTH WITH THE FLOOD HEADLINES.

WIND WILL ALSO BE A CONCERN TONIGHT. THE SPC DAY ONE CONVECTIVE
OUTLOOK ACTUALLY HAS THE SLIGHT RISK RIGHT TO OUR DOORSTEP. THE
DYNAMICS AND ELEVATED CONVECTIVE POTENTIAL ALONG WITH A 50-65 KNOT
WIND FIELD AT 850MB CERTAINLY POSES THE RISK OF DAMAGING WIND GUSTS
ASSUMING THE SURFACE STABLE LAYER IS NOT TOO STRONG. THE TIMING OF
BEST INSTABILITY WILL BE LATE IN THE EVENING AS THE WARM FRONT IS
EXPECTED TO MAKE INROADS INTO SE MI. THE ASSOCIATED COLD FRONT FROM
THE DEEPENING SURFACE LOW IS THEN EXPECTED TO PASS THROUGH SE
MICHIGAN BETWEEN 06Z AND 09Z. A GOOD ISALLOBARIC COMPONENT...STRONG
ISENTROPIC DECENT AND A DEEPENING MIXED LAYER WITHIN ROBUST LOW
LEVEL COLD AIR ADVECTION WILL SET THE STAGE FOR VERY STRONG WIND
GUSTS ALONG AND BEHIND FROPA. THE LATEST MODEL SOUNDINGS INDICATE
THE POTENTIAL FOR 50 TO 60 MPH WIND GUSTS TO MIX TO THE SURFACE LATE
TONIGHT INTO EARLY WED...THUS PROMPTING THE ISSUANCE OF A HIGH WIND
WATCH.

&&

.LONG TERM...WEDNESDAY THROUGH MONDAY

VERY WINDY CONDITIONS WILL CONTINUE INTO WEDNESDAY AS STRONG COLD
AIR ADVECTION CONTINUES BEHIND THE DEPARTING LOW PRESSURE SYSTEM.
MIXING HEIGHTS INCREASE TO AROUND 4000 FEET BEHIND THE COLD
FRONT...MIXING DOWN WESTERLY GUSTS TO 45 MPH DURING THE
MORNING...DECREASING TO 35 MPH GUSTS DURING THE AFTERNOON AS THE
PRESSURE GRADIENT SLOWLY RELAXES. DEEP MOISTURE WILL ALREADY BE
GONE BY WEDNESDAY MORNING AS A STRONG MID LEVEL DRY SLOT IS
WRAPPED INTO THE SYSTEM AS IT TRACKS OFF TO THE NORTHEAST. A WEAK
SURFACE TROUGH MOVING THROUGH THE BROADER CYCLONIC FLOW WILL SERVE
TO CREATE SOME LIGHT SNOW SHOWERS OR MORE LIKELY JUST FLURRIES OUT
OF THE SHALLOW MOISTURE THAT REMAINS WITH NO ACCUMULATION
EXPECTED. TEMPERATURES WILL HOLD STEADY OR FALL DURING THE DAY ON
WEDNESDAY WITH PARTLY TO MOSTLY CLOUDY SKIES AND BRISK CONDITIONS.

STRONG HIGH PRESSURE BUILDS FROM THE UPPER MIDWEST INTO THE CENTRAL
GREAT LAKES FROM WEDNESDAY NIGHT INTO THURSDAY. BOTH THE NAM AND GFS
SHOW MOISTURE OFF OF LAKE MICHIGAN GETTING TRAPPED BENEATH THE
STRENGTHENING INVERSION AS THE HIGH BUILDS EASTWARD AND HAVE
INCREASED CLOUD COVER FOR WEDNESDAY NIGHT. VERY DRY AIR ABOVE THIS
LAYER WITH 850MB MOISTURE BELOW 15 PERCENT WILL HELP TO MIX OUT ANY
STRATUS DURING THE DAY ON THURSDAY. LIGHT WINDS AND LOTS OF SUNSHINE
WILL HELP TO MAKE THURSDAY A MORE PLEASANT DAY DESPITE TEMPERATURES
TOPPING OUT NEAR 30 DEGREES. THURSDAY NIGHT WILL BE VERY COLD FOR
THIS TIME OF YEAR AND HAVE CONTINUED TO UNDERCUT GUIDANCE VALUES
WITH STRONG HIGH PRESSURE...1038MB...CENTERED OVERHEAD CREATING
FAVORABLE RADIATIONAL COOLING CONDITIONS. SOME LOCATIONS WILL DROP
INTO THE SINGLE DIGITS ACROSS THE NORTHERN CWA WHILE METRO DETROIT
CAN EXPECT LOWS IN THE TEENS.

AFTER SEVERAL DAYS OF COOL AND DRY WEATHER FOR THE END OF THE
WEEK...THE PATTERN BECOMES MORE ACTIVE AGAIN BY SUNDAY AFTERNOON.
SPLIT FLOW LEFT BEHIND AFTER THE ROBUST TUESDAY SYSTEM WILL
TRANSITION BACK TO ANOTHER HIGHLY AMPLIFIED TROUGH OVER THE WESTERN
UNITED STATES.  SHORTWAVE ENERGY MOVING THIS TROUGH APPROACHES THE
GREAT LAKES REGION BY SUNDAY...SUPPORTING GRADUALLY WARMING
TEMPERATURES AND THE NEXT CHANCE OF RAIN SHOWERS.

&&

.MARINE...

A RAPIDLY DEEPEN SURFACE LOW IS FORECAST TO TRACK ACROSS THE
NORTHERN GREAT LAKES TONIGHT AND THEN INTO CANADA ON WEDNESDAY. THIS
SYSTEM WILL SEND AN ASSOCIATED COLD FRONT ACROSS THE REGION LATE
TONIGHT. VERY STRONG LOW LEVEL COLD AIR ADVECTION AND A
STRENGTHENING GRADIENT WILL SUPPORT STORM FORCE WIND GUSTS OVER
NORTHERN LAKE HURON LATE TONIGHT INTO WEDNESDAY MORNING AND HIGH END
GALE FORCE WINDS ACROSS THE REST OF THE MARINE AREAS.

&&

.PREV DISCUSSION...ISSUED 102 AM EDT TUE MAR 10 2009

AVIATION...

VFR CONDITIONS WITH LIGHT SOUTHEAST WINDS WILL PERSIST THROUGH THE
EARLY MORNING HOURS AS SURFACE HIGH PRESSURE SLIDES TO OUR EAST, BUT
THEN CONDITIONS WILL WORSEN DURING THE DAYLIGHT HOURS AS THE NEXT
LOW PRESSURE SYSTEM AFFECTS SE MICHIGAN. EXPECT RAIN TO SPREAD FROM
WEST TO EAST OVER THE REGION DURING THE MORNING BEGINNING FIRST IN
THE TRI CITIES SHORTLY AFTER SUNRISE AND NOT LONG AFTER OVER THE
REST OF THE REGION. FROM THERE CEILING AND VISIBILITY WILL DROP INTO
THE IFR RANGE DURING THE AFTERNOON AND EVEN INTO LIFR AT DTW/DET AS
A WARM FRONT SETS UP NEAR THE OHIO BORDER. THIS FRONT WILL MAKE A
MOVE NORTHWARD INTO LOWER MICHIGAN DURING THE EVENING HOURS BUT WILL
HAVE TO WAIT UNTIL THE CENTER OF LOW PRESSURE REACHES UPPER MICHIGAN
BEFORE DOING SO. EASTERLY FLOW FROM THE LOWER LAKES TYPICALLY DELAYS
THE NORTHWARD PROGRESS OF FRONTAL BOUNDARIES UNTIL THE ASSOCIATED
SURFACE LOW IS WELL TO OUR NORTH AND WEST WITH A STRONGER SW LOW
LEVEL FLOW INTO LOWER MICHIGAN. THE WARM FRONT WILL LIKELY REACH THE
TRI CITIES BY MIDNIGHT FOLLOWED BY A CHANCE OF THUNDERSTORMS WITH A
STRONG COLD FRONT LATER IN THE NIGHT.

&&

.DTX WATCHES/WARNINGS/ADVISORIES...
MI...FLOOD WATCH...MIZ068-MIZ069-MIZ070-MIZ075-MIZ076-MIZ082-
     MIZ083...FROM 8 AM TUESDAY TO 4 AM WEDNESDAY.

     HIGH WIND WATCH...MIZ047-MIZ048-MIZ049-MIZ053-MIZ054-MIZ055-MIZ060-
     MIZ061-MIZ062-MIZ063-MIZ068-MIZ069-MIZ070-MIZ075-MIZ076-MIZ082-
     MIZ083...FROM 2 AM WEDNESDAY TO 4 PM WEDNESDAY.

LAKE HURON...
     HEAVY FREEZING SPRAY WARNING...LHZ361-LHZ362-LHZ363...FROM 2 AM
     WEDNESDAY TO 4 PM WEDNESDAY.

     STORM WARNING...LHZ361-LHZ362...FROM 2 AM WEDNESDAY TO 4 PM
     WEDNESDAY.

     GALE WARNING...LHZ363-LHZ421-LHZ422-LHZ441-LHZ442-LHZ443-LHZ462-
     LHZ463-LHZ464...FROM 2 AM WEDNESDAY TO 4 PM WEDNESDAY.

LAKE ST CLAIR...
     GALE WARNING...FROM 2 AM WEDNESDAY TO 4 PM WEDNESDAY.

MI WATERS OF LAKE ERIE...
     GALE WARNING...FROM 2 AM WEDNESDAY TO 4 PM WEDNESDAY.

&&

SHORT TERM...SC
LONG TERM....KEC
MARINE.......SC
AVIATION.....BT

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
420 PM EDT MON MAR 9 2009

MIZ075-076-082-083-102030-
WASHTENAW-WAYNE-LENAWEE-MONROE-
420 PM EDT MON MAR 9 2009

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...TUESDAY THROUGH SUNDAY

A FLOOD WATCH IS NOW IN EFFECT TUESDAY AND TUESDAY NIGHT. PLEASE
REFER TO THE LATEST STATEMENT.../FFADTX/...FOR GREATER DETAIL.

PERIODS OF RAIN WITH SCATTERED THUNDERSTORMS WILL DEVELOP TUESDAY
AND TUESDAY NIGHT AS A FRONTAL SYSTEM MOVES THROUGH. SEVERE
WEATHER IS NOT EXPECTED BUT HEAVY RAINFALL AND SMALL HAIL WILL BE
POSSIBLE WITH ANY THUNDERSTORMS THAT DEVELOP.

AN ARCTIC COLD FRONT WILL MOVE THROUGH THE REGION LATE TUESDAY
NIGHT. ADVISORY CRITERIA WIND GUSTS UP TO 45 MPH ARE POSSIBLE LATE
TUESDAY NIGHT INTO WEDNESDAY FOLLOWING THE PASSAGE OF THIS FRONT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

MIZ047>049-053>055-060>063-068>070-102030-
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER-
ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-
420 PM EDT MON MAR 9 2009

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...TUESDAY THROUGH SUNDAY

PERIODS OF RAIN WITH SCATTERED THUNDERSTORMS WILL DEVELOP TUESDAY
AND TUESDAY NIGHT AS A FRONTAL SYSTEM MOVES THROUGH. SEVERE
WEATHER IS NOT EXPECTED BUT AN ADDITIONAL INCH OF RAINFALL IS
POSSIBLE ACROSS THE REGION. ADDITIONAL MINOR FLOODING WILL BE
POSSIBLE IN LOW LYING AREAS WITH THE POTENTIAL FOR SOME RIVERS TO
RISE ABOVE FLOOD STAGE.

AN ARCTIC COLD FRONT WILL MOVE THROUGH THE REGION LATE TUESDAY
NIGHT. ADVISORY CRITERIA WIND GUSTS UP TO 45 MPH ARE POSSIBLE LATE
TUESDAY NIGHT INTO WEDNESDAY FOLLOWING THE PASSAGE OF THIS FRONT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

LCZ422-423-460-LEZ444-LHZ361>363-421-422-441>443-462>464-102030-
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-
420 PM EDT MON MAR 9 2009

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

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS A CHANCE OF THUNDERSTORMS ON LAKE ST CLAIR AND LAKE ERIE
ON TUESDAY.

A STORM WATCH IS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY FOR  THE LAKE HURON OPENWATERS NORTH OF PRESQUE ISLE. A
GALE WATCH IS IN EFFECT DURING THIS TIME ALL OTHER MARINE AREAS.
PLEASE SEE THE LATEST MARINE FORECASTS FOR DETAILS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

MR

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