Alert archive / Michigan / Gale Warnings in 2012

Gale Warning 15, NWS Detroit, MI

March 2, 2012

NWS Detroit, MI issued this gale warning at Mar 2, 2012, 4:27 AM EST. It took effect at Mar 2, 2012, 7:00 PM EST. It was in force for 26 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 2, 2012, 4:27 AM EST (09:27 UTC)
In effect from
Mar 2, 2012, 7:00 PM EST
Expired
Mar 3, 2012, 9:15 PM EST
In force
26 hr
Issued by
NWS Detroit, MI

The text

As transmitted, in the capitals the NWS used until 2016.

396 
WHUS73 KDTX 020927
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
427 AM EST FRI MAR 2 2012

...HIGH END GALE FORCE WINDS EXPECTED OVER THE REGION TONIGHT...

.A STRONG LOW PRESSURE SYSTEM WILL MOVE FROM THE MID MISSISSIPPI 
VALLEY THROUGH THE GREAT LAKES TONIGHT. THIS SYSTEM WILL DEEPEN 
RAPIDLY AS IT MOVES THROUGH LAKE HURON WITH STRONG GALE FORCE WINDS 
EXPECTED OVER THE REGION. THERE IS STILL SOME UNCERTAINTY IN THE THE 
PRECISE TRACK OF THE SYSTEM BUT ANY ADDITIONAL VARIATION WILL LIKELY 
NOT IMPACT THE POTENTIAL FOR GALE FORCE WINDS OVER THE REGION 
TONIGHT THROUGH SATURDAY NIGHT. GALE WARNINGS ARE NOW IN EFFECT FOR 
ALL MARINE AREAS DURING THIS TIME. MORE FAVORABLE MARINE CONDITIONS 
ARE EXPECTED TO RETURN SUNDAY AS HIGH PRESSURE BUILDS INTO THE 
REGION WITH CONSIDERABLE IMPROVEMENT DURING THE FIRST HALF OF NEXT 
WEEK.

LHZ361>363-022130-
/O.UPG.KDTX.GL.A.0012.120303T0300Z-120304T0300Z/
/O.NEW.KDTX.GL.W.0015.120303T0300Z-120304T0900Z/
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-
427 AM EST FRI MAR 2 2012

...GALE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 4 AM EST
SUNDAY...

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS
  UP TO 38 KNOTS FROM THE WEST WITH GUSTS UP TO 47 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 7 AM EST SATURDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 10 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.

&&

$$

LHZ462>464-022130-
/O.UPG.KDTX.GL.A.0012.120303T0300Z-120304T0300Z/
/O.NEW.KDTX.GL.W.0015.120303T0000Z-120304T0900Z/
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 FRI MAR 2 2012

...GALE WARNING IN EFFECT FROM 7 PM THIS EVENING TO 4 AM EST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 4 AM EST
SUNDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS
  UP TO 39 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 47 KNOTS. THE
  LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 12 FEET WITH A
  POTENTIAL MAXIMUM WAVE HEIGHT OF 17 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 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.

&&

$$

LHZ421-422-441>443-022130-
/O.UPG.KDTX.GL.A.0012.120303T0300Z-120304T0300Z/
/O.NEW.KDTX.GL.W.0015.120303T0000Z-120303T2000Z/
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-
427 AM EST FRI MAR 2 2012

...GALE WARNING IN EFFECT FROM 7 PM THIS EVENING TO 3 PM EST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 3 PM EST
SATURDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS
  UP TO 38 KNOTS FROM THE WEST WITH GUSTS UP TO 45 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 4 AM EST SATURDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 8 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-LEZ444-022130-
/O.UPG.KDTX.GL.A.0012.120303T0300Z-120304T0300Z/
/O.NEW.KDTX.GL.W.0015.120303T0000Z-120303T2000Z/
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
427 AM EST FRI MAR 2 2012

...GALE WARNING IN EFFECT FROM 7 PM THIS EVENING TO 3 PM EST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 3 PM EST
SATURDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 35 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 43 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 7 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 10 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 2 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 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.

&&

$$

BT
5 follow-up statements
588 
WHUS73 KDTX 022107
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
407 PM EST FRI MAR 2 2012

...HIGH END GALE WARNING TONIGHT...

.DEEPENING LOW PRESSURE CONTINUES TO TRACK FROM EASTERN ILLINOIS TO 
THE NORTHEAST THIS EVENING. THE LOW WILL TRACK TOWARD SAGINAW BAY BY 
MIDNIGHT AND THEN CONTINUE NORTHEAST FROM THERE. A STRONG PRESSURE 
GRADIENT AND ISALLOBARIC WIND COMPONENT WILL BE PRESENT AND EXPECT 
HIGH-END GALE FORCE WINDS TO BE PRESENT ACROSS MOST OF LAKE HURON. 
CONDITIONS BECOME UNSTABLE ONCE THE COLD FRONT MOVES THROUGH AND 
THIS ADDS TO THE WIND POTENTIAL OVERNIGHT. THERE MAY BE ISOLATED 
STORM FORCE WIND GUSTS...BUT NOT FREQUENT ENOUGH TO WARRANT A STORM 
WARNING. THE DIURNAL CYCLE AND CONTINUED TIGHT PRESSURE GRADIENT ON 
SATURDAY WILL ALLOW FOR GUSTS OVER 30KT AND THE GALE WARNING WILL 
REMAIN IN EFFECT THROUGH THE DAY AND LATE EVENING. IMPROVED MARINE 
CONDITIONS ARE EXPECTED SUNDAY AND NEXT WEEK.

LEZ444-030915-
/O.CON.KDTX.GL.W.0015.120303T0000Z-120303T2000Z/
/O.NEW.KDTX.LO.Y.0006.120303T0600Z-120303T2100Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
407 PM EST FRI MAR 2 2012

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 3 PM
EST SATURDAY...
...LOW WATER ADVISORY IN EFFECT FROM 1 AM TO 4 PM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A LOW
WATER ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 4 PM EST
SATURDAY. 

* AT 3 PM FRIDAY THE WATER LEVEL AT TOLEDO WAS 43 INCHES ABOVE
  LOW WATER DATUM. THE WATER LEVEL IS FORECAST TO FALL BELOW THE
  CRITICAL MARK FOR SAFE NAVIGATION BY 2 AM AND BOTTOM OUT AROUND
  8 AM SATURDAY. WATER LEVELS ARE EXPECTED TO FALL TO ABOUT 18
  INCHES BELOW LOW WATER DATUM OR AROUND TWO AND A HALF FEET BELOW
  THE CRITICAL MARK FOR SAFE NAVIGATION. DECREASING WINDS ON
  SATURDAY AFTERNOON WILL ALLOW WATER LEVELS TO SLOWLY RISE.

A GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 3 PM
EST SATURDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 36 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 45 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 7 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 10 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 11 PM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 12 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.

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.

&&

$$

LHZ361>363-030915-
/O.CON.KDTX.GL.W.0015.120303T0300Z-120304T0900Z/
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-
407 PM EST FRI MAR 2 2012

...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4 AM
EST SUNDAY...

A GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4 AM
EST SUNDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 38 KNOTS FROM THE WEST WITH GUSTS UP TO 51 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 13 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 19 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 4 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 1 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.

&&

$$

LHZ462>464-030915-
/O.CON.KDTX.GL.W.0015.120303T0000Z-120304T0900Z/
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-
407 PM EST FRI MAR 2 2012

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 4 AM
EST SUNDAY...

A GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 4 AM
EST SUNDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 39 KNOTS FROM THE WEST WITH GUSTS UP TO 49 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 13 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 19 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 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.

&&

$$

LHZ421-422-441>443-030915-
/O.CON.KDTX.GL.W.0015.120303T0000Z-120303T2000Z/
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-
407 PM EST FRI MAR 2 2012

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 3 PM
EST SATURDAY...

A GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 3 PM
EST SATURDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 39 KNOTS FROM THE WEST WITH GUSTS UP TO 48 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 11 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 16 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 4 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 12 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.

&&

$$

LCZ460-030915-
/O.CON.KDTX.GL.W.0015.120303T0000Z-120303T2000Z/
LAKE ST. CLAIR-
407 PM EST FRI MAR 2 2012

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 3 PM
EST SATURDAY...

A GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 3 PM
EST SATURDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 33 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 43 
  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 2 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.

&&

$$

MM
074 
WHUS73 KDTX 030910
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
410 AM EST SAT MAR 3 2012

...WESTERLY GALES TO PERSIST TODAY...

.POWERFUL LOW PRESSURE AT 28.80 INCHES WILL BE LOCATED NEAR THE 
NORTHERN SHORELINE OF GEORGIAN BAY AT 12Z. THIS SURFACE LOW WILL 
THEN TRANSLATE RAPIDLY EASTWARD LEAVING A RESIDUAL TIGHT PRESSURE 
GRADIENT IN ITS WAKE. STRONG WESTERLY WINDS ARE EXPECTED TO PERSIST 
WITH SOLID GALE VALUES OF 35 TO 40 KNOT THROUGHOUT MUCH OF THE 
MORNING AND AFTERNOON HOURS. WIND SPEEDS WILL WEAKEN DRAMATICALLY 
TONIGHT. SURFACE HIGH PRESSURE WILL BUILD INTO THE GREAT LAKES TO 
CLOSE THE WEEKEND...YIELDING TO INCREASING SOUTHWESTERLY FLOW EARLY 
NEXT WEEK.

LEZ444-032100-
/O.CON.KDTX.GL.W.0015.000000T0000Z-120303T2000Z/
/O.CON.KDTX.LO.Y.0006.000000T0000Z-120303T2100Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
410 AM EST SAT MAR 3 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM EST THIS AFTERNOON...
...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...

A GALE WARNING REMAINS IN EFFECT UNTIL 3 PM EST THIS AFTERNOON. 

* 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 5 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 6 AM EST 
  SATURDAY. 

A LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON. 

* AT MIDNIGHT THE WATER LEVEL AT TOLEDO WAS 8 INCHES
  ABOVE LOW WATER DATUM OR 2 INCHES BELOW THE CRITICAL MARK FOR
  SAFE NAVIGATION. THE WATER LEVEL WILL CONTINUE TO FALL TO
  BETWEEN 15 AND 20 INCHES BELOW THE CRITICAL MARK TOWARDS MORNING
  SATURDAY. WATER LEVELS TO SLOWLY RISE ABOVE THE CRITICAL MARK
  LATE SATURDAY 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.

&&

$$

LHZ361>363-032115-
/O.CON.KDTX.GL.W.0015.000000T0000Z-120304T0900Z/
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-
410 AM EST SAT MAR 3 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY...

A GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 37 KNOTS FROM THE WEST WITH GUSTS UP TO 44 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 12 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 17 FEET. 

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

&&

$$

LHZ462>464-032115-
/O.CON.KDTX.GL.W.0015.000000T0000Z-120304T0900Z/
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-
410 AM EST SAT MAR 3 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY...

A GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 37 KNOTS FROM THE WEST WITH GUSTS UP TO 44 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 12 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 17 FEET. 

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

&&

$$

LHZ421-422-441>443-032000-
/O.CON.KDTX.GL.W.0015.000000T0000Z-120303T2000Z/
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-
410 AM EST SAT MAR 3 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM EST THIS AFTERNOON...

A GALE WARNING REMAINS IN EFFECT UNTIL 3 PM EST THIS AFTERNOON. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 34 KNOTS FROM THE WEST WITH GUSTS UP TO 43 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 5 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.

&&

$$

LCZ460-032000-
/O.CON.KDTX.GL.W.0015.000000T0000Z-120303T2000Z/
LAKE ST. CLAIR-
410 AM EST SAT MAR 3 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM EST THIS AFTERNOON...

A GALE WARNING REMAINS IN EFFECT UNTIL 3 PM EST THIS AFTERNOON. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 28 KNOTS FROM THE WEST WITH GUSTS UP TO 37 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 5 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 6 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.

&&

$$
726 
WHUS73 KDTX 031211
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
711 AM EST SAT MAR 3 2012

...WESTERLY GALES TO PERSIST TODAY...

.POWERFUL LOW PRESSURE AT 28.80 INCHES NEAR THE NORTHERN
SHORELINE OF GEORGIAN BAY WILL TRANSLATE RAPIDLY EASTWARD LEAVING
A RESIDUAL TIGHT PRESSURE GRADIENT IN ITS WAKE. STRONG WESTERLY
WINDS ARE EXPECTED TO PERSIST WITH SOLID GALE VALUES OF 35 TO 40
KNOT THROUGHOUT MUCH OF THE DAY. WIND SPEEDS WILL WEAKEN
DRAMATICALLY TONIGHT. SURFACE HIGH PRESSURE WILL BUILD INTO THE
GREAT LAKES TO CLOSE THE WEEKEND...YIELDING TO INCREASING
SOUTHWESTERLY FLOW EARLY NEXT WEEK.

LEZ444-032100-
/O.EXT.KDTX.GL.W.0015.000000T0000Z-120303T2100Z/
/O.CON.KDTX.LO.Y.0006.000000T0000Z-120303T2100Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
711 AM EST SAT MAR 3 2012

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

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS
  UP TO 25 KNOTS FROM THE WEST 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 AND WAVES ARE EXPECTED AROUND 11 AM
  SATURDAY. 

A LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON. 

* AT 7 AM...THE WATER LEVEL AT TOLEDO WAS 11 INCHES BELOW CHART
  DATUM OR ABOUT 21 INCHES BELOW THE LEVEL CONSIDERED SAFE FOR
  NAVIGATION. AS WESTERLY GALES EASE DURING THE DAY...THE WATER
  LEVEL WILL LINGER AROUND CHART DATUM BEFORE RISING STEADILY
  TONIGHT. A RETURN TO RECENT AVERAGE LEVELS IS EXPECTED BY SUNDAY
  MORNING.

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.

&&

$$

LHZ421-422-032100-
/O.EXA.KDTX.LO.Y.0006.000000T0000Z-120303T2100Z/
/O.EXT.KDTX.GL.W.0015.000000T0000Z-120303T2100Z/
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-
711 AM EST SAT MAR 3 2012

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

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

* AT 7 AM...THE WATER LEVEL AT ESSEXVILLE WAS 24 INCHES BELOW
  CHART DATUM. AS WESTERLY GALES EASE DURING THE DAY...THE WATER
  LEVEL WILL RISE STEADILY DURING THE AFTERNOON. A RETURN TO
  RECENT AVERAGE LEVELS IS EXPECTED DURING THE EVENING.

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 37 KNOTS FROM THE WEST WITH GUSTS UP TO 44 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 9 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 13 FEET. 

* TIMING: THE MAXIMUM WINDS AND WAVES ARE EXPECTED AROUND 7 AM
  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.

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.

&&

$$

LHZ441>443-032100-
/O.EXT.KDTX.GL.W.0015.000000T0000Z-120303T2100Z/
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
711 AM EST SAT MAR 3 2012

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

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 32 KNOTS FROM THE WEST WITH GUSTS UP TO 39 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 9 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 13 FEET. 

* TIMING: THE MAXIMUM WINDS AND WAVES ARE EXPECTED AROUND 10 AM
  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.

&&

$$

LCZ460-032100-
/O.EXT.KDTX.GL.W.0015.000000T0000Z-120303T2100Z/
LAKE ST. CLAIR-
711 AM EST SAT MAR 3 2012

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

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 24 KNOTS FROM THE WEST WITH GUSTS UP TO 33 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 4 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 5 FEET. 

* TIMING: THE MAXIMUM WINDS AND WAVES ARE EXPECTED AROUND 8 AM
  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>363-040015-
/O.CON.KDTX.GL.W.0015.000000T0000Z-120304T0900Z/
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-
711 AM EST SAT MAR 3 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY...

A GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 34 KNOTS FROM THE WEST WITH GUSTS UP TO 43 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 12 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 17 FEET. 

* TIMING: THE MAXIMUM WINDS AND WAVES ARE EXPECTED AROUND 10 AM
  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.

&&

$$

LHZ462>464-040015-
/O.CON.KDTX.GL.W.0015.000000T0000Z-120304T0900Z/
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-
711 AM EST SAT MAR 3 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY...

A GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 35 KNOTS FROM THE WEST WITH GUSTS UP TO 43 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 12 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 17 FEET. 

* TIMING: THE MAXIMUM WINDS AND WAVES ARE EXPECTED AROUND 10 AM
  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.

&&

$$

BT
752 
WHUS73 KDTX 032044
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
344 PM EST SAT MAR 3 2012

...GUSTY WINDS INTO THE EVENING BEFORE DECREASING OVERNIGHT...

.STRONG WEST-SOUTHWEST PRESSURE GRADIENT WILL MAINTAIN GALE FORCE 
GUSTS THROUGH THIS EVENING ACROSS ALL MARINE AREAS.  WINDS BECOME 
NORTHWESTERLY AND DIMINISH TONIGHT AS THE GRADIENT SLACKENS.  
NORTHWEST FLOW WILL HOLD THROUGH THE LATTER HALF OF THE WEEKEND 
AS HIGH PRESSURE BUILDS INTO THE GREAT LAKES.  SOUTHERLY WINDS 
WILL INCREASE IN THE WAKE OF THIS HIGH EARLY NEXT WEEK.

LEZ444-040300-
/O.CAN.KDTX.LO.Y.0006.000000T0000Z-120303T2100Z/
/O.EXT.KDTX.GL.W.0015.000000T0000Z-120304T0300Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
344 PM EST SAT MAR 3 2012

...GALE WARNING NOW IN EFFECT UNTIL 10 PM EST THIS EVENING...
...LOW WATER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS CANCELLED THE
LOW WATER ADVISORY. THE GALE WARNING IS NOW IN EFFECT UNTIL 10 PM
EST THIS EVENING. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 24 KNOTS FROM THE WEST WITH GUSTS UP TO 33 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 4 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 5 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 6 PM EST SATURDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 3 PM 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.

&&

$$

LHZ421-422-040300-
/O.EXT.KDTX.GL.W.0015.000000T0000Z-120304T0300Z/
/O.EXT.KDTX.LO.Y.0006.000000T0000Z-120304T0300Z/
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-
344 PM EST SAT MAR 3 2012

...GALE WARNING NOW IN EFFECT UNTIL 10 PM EST THIS EVENING...
...LOW WATER ADVISORY NOW IN EFFECT UNTIL 10 PM EST THIS
EVENING...

THE GALE WARNING IS NOW IN EFFECT UNTIL 10 PM EST THIS EVENING. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE WEST WITH GUSTS UP TO 38 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 7 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 10 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 3 PM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 9 PM EST 
  SATURDAY. 

THE LOW WATER ADVISORY IS NOW IN EFFECT UNTIL 10 PM EST THIS
EVENING. 

* AT 4 PM...THE WATER LEVEL AT ESSEXVILLE WAS 13 INCHES BELOW
  CHART DATUM. THE WATER LEVELS WILL CONTINUE TO RISE STEADILY
  THROUGH THE EVENING...RETURNING TO RECENT AVERAGE LEVELS BY 
  TONIGHT.

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.

&&

$$

LHZ441>443-040300-
/O.EXT.KDTX.GL.W.0015.000000T0000Z-120304T0300Z/
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
344 PM EST SAT MAR 3 2012

...GALE WARNING NOW IN EFFECT UNTIL 10 PM EST THIS EVENING...

THE GALE WARNING IS NOW IN EFFECT UNTIL 10 PM EST THIS EVENING. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 24 KNOTS FROM THE WEST WITH GUSTS UP TO 33 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 8 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 11 FEET. 

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

&&

$$

LCZ460-040300-
/O.EXT.KDTX.GL.W.0015.000000T0000Z-120304T0300Z/
LAKE ST. CLAIR-
344 PM EST SAT MAR 3 2012

...GALE WARNING NOW IN EFFECT UNTIL 10 PM EST THIS EVENING...

THE GALE WARNING IS NOW IN EFFECT UNTIL 10 PM EST THIS EVENING. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 27 KNOTS FROM THE WEST WITH GUSTS UP TO 34 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 3 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 4 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 3 PM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 3 PM 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>363-040845-
/O.CON.KDTX.GL.W.0015.000000T0000Z-120304T0900Z/
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-
344 PM EST SAT MAR 3 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY...

A GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 29 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 40 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 12 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 17 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 6 PM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 3 PM 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.

&&

$$

LHZ462>464-040845-
/O.CON.KDTX.GL.W.0015.000000T0000Z-120304T0900Z/
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-
344 PM EST SAT MAR 3 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY...

A GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST SUNDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 26 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 35 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 10 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 14 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 6 PM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 7 PM 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.

&&

$$
661 
WHUS73 KDTX 040215
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
915 PM EST SAT MAR 3 2012

...WAVES TO REMAIN HIGH EVEN AS WINDS DIMINISH...

.WHILE WIND GUSTS WILL DROP BELOW 20 KNOTS LATE TONIGHT...WINDS
WILL SHIFT TO THE NORTHWEST AND ALLOW WAVES TO BUILD ACROSS THE
SOUTHERN PORTION OF LAKE HURON. THESE WAVES WILL CONTINUE INTO
SUNDAY MORNING AND THEN SLOWLY SUBSIDE DURING THE AFTERNOON AND
EVENING HOURS.

LHZ421-041415-
/O.CAN.KDTX.GL.W.0015.000000T0000Z-120304T0300Z/
/O.NEW.KDTX.SC.Y.0020.120304T0215Z-120304T2100Z/
/O.CAN.KDTX.LO.Y.0006.000000T0000Z-120304T0300Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-
915 PM EST SAT MAR 3 2012

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST SUNDAY...
...GALE WARNING IS CANCELLED...
...LOW WATER ADVISORY IS CANCELLED...

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

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 21 KNOTS FROM THE NORTHWEST WITH GUSTS 
  UP TO 26 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL 
  BE 7 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 10 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 9 PM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 1 AM EST 
  SUNDAY. 

THE GALE WARNING HAS BEEN CANCELLED. THE LOW WATER ADVISORY HAS
BEEN CANCELLED. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

LHZ422-040315-
/O.CAN.KDTX.GL.W.0015.000000T0000Z-120304T0300Z/
/O.CAN.KDTX.LO.Y.0006.000000T0000Z-120304T0300Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
915 PM EST SAT MAR 3 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. 

$$

LHZ441>443-041415-
/O.CAN.KDTX.GL.W.0015.000000T0000Z-120304T0300Z/
/O.NEW.KDTX.SC.Y.0020.120304T0215Z-120304T2100Z/
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
915 PM EST SAT MAR 3 2012

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST SUNDAY...
...GALE WARNING IS CANCELLED...

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

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 22 KNOTS FROM THE NORTHWEST WITH GUSTS 
  UP TO 27 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL 
  BE 8 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 11 FEET. 

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

THE GALE WARNING HAS BEEN CANCELLED. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

LHZ361>363-462>464-040315-
/O.CAN.KDTX.GL.W.0015.000000T0000Z-120304T0900Z/
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-
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-
915 PM EST SAT MAR 3 2012

...GALE WARNING IS CANCELLED...

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

$$

LCZ460-LEZ444-040315-
/O.CAN.KDTX.GL.W.0015.000000T0000Z-120304T0300Z/
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
915 PM EST SAT MAR 3 2012

...GALE WARNING IS CANCELLED...

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

$$

DG

What forecasters said that day

The local office's own words before this gale warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Detroit, MI wrote its last area forecast discussion before this gale warning went out at Mar 1, 11:46 PM EST, 4 hours 41 minutes earlier.

Area forecast discussion, Mar 1, 11:46 PM EST, 4 hours 41 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1146 PM EST THU MAR 1 2012

.AVIATION...

//DISCUSSION...

REMAINING MVFR CIGS WILL LIFT NORTH/NORTHEAST OF ALL TERMINALS DURING
THE FIRST SEVERAL HOURS OF THE FORECAST...LEAVING VFR CIGS OF AROUND
10KFT LATE TONIGHT INTO FRIDAY. CONDITIONS WILL DETERIORATE QUICKLY
AFTER 18Z-20Z AS SURGE OF MOISTURE LIFTS INTO THE REGION WITH THE
APPROACH OF A STRONG LOW PRESSURE SYSTEM. CIGS/VSBYS WILL LOWER
CONSIDERABLY WITHIN THIS AREA OF RAIN...AND EMBEDDED THUNDERSTORMS
SEEM QUITE POSSIBLE AS WELL GIVEN THE AMOUNT OF LIFT WITH SUCH A
STRONG SYSTEM (COUPLED WITH SOME DEGREE OF INSTABILITY). AS THIS
AREA OF RAIN LIFTS NORTH WITH THE LOW...VERY GUSTY SOUTHWEST WINDS
WILL DEVELOP...WITH GUSTS TO 40 KNOTS EXPECTED. THESE WINDS WILL
ONLY SUBSIDE SLIGHTLY OVERNIGHT AS THEY VEER TO THE WEST.

//DTW THRESHOLD THREATS...

* HIGH CONFIDENCE OF CIGS BELOW 5000 FEET THROUGH 08Z THIS MORNING.
  AND THEN AGAIN AFTER 19Z FRIDAY AFTERNOON.

* HIGH CONFIDENCE OF PRECIP TYPE AS RAIN AFTER 18Z-20Z.

* LOW CONFIDENCE OF THUNDERSTORMS AROUND 22Z-00Z

&&

.PREV DISCUSSION...ISSUED 334 PM EST THU MAR 1 2012

SHORT TERM...TONIGHT

SOUTHEAST MICHIGAN WILL REMAIN IN BETWEEN SYSTEMS OVERNIGHT WITH
MAIN FORECAST CONCERNS CENTERING AROUND CLOUD COVER AND OVERNIGHT
LOWS. LATEST WATER VAPOR IMAGERY SHOWS WEAK MID LEVEL RIDGE BUILDING
ACROSS THE REGION AS A CLOSED LOW EXITS RAPIDLY TO THE EAST.
CYCLONIC FLOW IN THE WAKE OF THIS LOW COMBINED WITH AMPLE LOW LEVEL
MOISTURE TRAPPED BENEATH A SHARP SUBSIDENCE INVERSION SEEN ON THE
12Z DTX SOUNDING HAS KEPT THE AREA MOSTLY CLOUDY TODAY. AS THE LOW
LEVEL RIDGE AXIS SHIFTS OVERHEAD LATER THIS EVENING SOME DRIER AIR
WILL TRY TO ADVECT INTO THE REGION WITH 850MB WINDS BECOMING MORE
SOUTHWESTERLY. LOW LEVEL WARM AIR ADVECTION WILL LIKELY WEAKEN THE
INVERSION AND LEAD TO FURTHER DISSIPATION OF THE STRATUS THIS
EVENING. HOWEVER...MID AND UPPER LEVEL CLOUDS WILL BE INCREASING
OVERNIGHT AHEAD OF AN APPROACHING WARM FRONT AND SURFACE LOW
PRESSURE SYSTEM DEVELOPING OVER THE CENTRAL PLAINS. THIS WILL LIKELY
KEEP THE AREA MOSTLY CLOUDY FOR THE BULK OF THE OVERNIGHT PERIOD.
WEAK PRESSURE GRADIENT OVERNIGHT WILL RESULT IN LIGHT WINDS BUT
GIVEN THE ABUNDANCE OF CLOUD COVER EXPECTED...WILL CONTINUE TO LEAN
ON THE UPPER END OF GUIDANCE WITH LOWS GENERALLY IN THE LOW 30S.

LONG TERM...FRIDAY THROUGH THURSDAY

EASTWARD EXPANDING REGION OF HEIGHT FALLS NOW BUILDING ACROSS THE
WESTERN CONUS WILL SHIFT INTO THE GREAT LAKES THROUGH THE WEEKEND.
STRONG/LEAD SHORTWAVE NOW NOTED ON WATER VAPOR CARVING SOUTHEAST
ACROSS THE GREAT BASIN WILL EMERGE INTO THE CENTRAL PLAINS
TONIGHT...WITH THE CRASHING HEIGHT FIELD PROMOTING STRONG SFC
CYCLOGENESIS AS THIS SYSTEM THEN TRANSLATES NORTHEAST AND TOWARD THE
GREAT LAKES ON FRIDAY.  COLUMN WILL BEGIN TO MOISTEN LOCALLY ON
FRIDAY AS A NARROW WING OF STRONGER SYSTEM RELATIVE ISENTROPIC
ASCENT WORKS THROUGH.  HOWEVER...STRONGER FORCING WILL HOLD OFF
UNTIL 20Z-03Z LATE FRIDAY ANCHORED ON AN EXPANDING THETA-E/MOISTURE
GRADIENT AND FAVORABLE LEFT EXIT REGION JET DYNAMICS.  POTENTIAL
DOES EXIST FOR AN EXPANDING AREA OF CONVECTION TO THE SOUTH TO CUT
INTO THE NORTHWARD MOISTURE TRANSPORT...BUT THE OVERALL SETUP
CONTINUES TO SUPPORT HIGH POPS DURING THIS TIME.  SFC BASED
INSTABILITY WILL BE LOCKED SOUTH OF THE BORDER...BUT SUFFICIENT MID
LEVEL ASCENT/LAPSE RATES WILL EXIST TO PROMOTE SOME ELEVATED THUNDER
THROUGH THIS TIME.  MID LEVEL DEFORMATION WILL LARGELY REMAIN
WEST/NORTHWEST OF THE TRI-CITIES...BUT MAY CLIP FAR NORTHERN
MIDLAND/BAY COUNTIES DURING THE 00Z-06Z TIMEFRAME.  LOW LEVEL
THERMAL PROFILES WILL BE MARGINAL...BUT SHOULD SOME HIGHER INTENSITY
BURSTS EVOLVE THEN THIS CORRIDOR WILL BE ON THE SOUTHERN FRINGES OF
THE ACCUMULATING SNOWFALL AXIS.

LOW WILL CONTINUE TO DEEPEN /~12MB IN 12HRS/ AS IT EJECTS NORTHEAST
INTO SOUTHERN ONTARIO FRIDAY NIGHT.   A PERIOD OF STRONG ISENTROPIC
DESCENT WITHIN A TIGHTENING PRESSURE GRADIENT WITH SOME COMPONENT OF
ISALLOBARIC FORCING IN THE WAKE OF THIS LOW WILL PROMPT A GOOD WIND
RESPONSE OVERNIGHT INTO SATURDAY.  THE DOWNWARD MOMENTUM TRANSPORT
WILL BE THERE TO BRING GUSTS OVER 40 MPH TO THE SURFACE.  SUSTAINED
PRESSURE GRADIENT/COLD AIR ADVECTION WITH DEEPER MIXING WILL
MAINTAIN GUSTY CONDITIONS INTO SATURDAY...AGAIN WITH PEAK GUSTS IN
THE 40 MPH RANGE.  SECONDARY MID LEVEL TROUGH CURRENTLY DRIFTING
ACROSS MONTANA WILL DRAG ACROSS THE LOWER PENINSULA ON SATURDAY.
THE INCREASE IN CVA COMBINED WITH THE PASSAGE OF A SECONDARY COLD
FRONT WILL BRING A CHANCE OF SNOW SHOWERS FROM LATE SATURDAY INTO
SATURDAY NIGHT.

LINGERING COLD CYCLONIC FLOW AND THE POTENTIAL FOR A PERIOD OF WEAK
MOISTURE FLUX AND ENHANCED LOW LEVEL CONVERGENCE EMANATING OFF THE
SOUTHERN END OF LAKE MICHIGAN MAY KEEP A FEW SNOW SHOWERS/FLURRIES
AROUND THROUGH THE LATTER HALF OF THE WEEKEND. OTHERWISE...ELONGATED
MEAN MID LEVEL TROUGH ENCOMPASSING THE GREAT LAKES THROUGH THE
SUNDAY/MONDAY PERIOD WILL ENSURE TEMPERATURES AT LEAST BRIEFLY DIP
BELOW EARLY MARCH NORMS.  THIS COOLDOWN APPEARS TO BE SHORT LIVED
PER LATEST EXTENDED MODEL SOLUTIONS...WITH AN AGGRESSIVE RECOVERY
IN UPPER HEIGHTS PROGGED TO COMMENCE STARTING ON TUESDAY.  ASSUMING
CIRRUS/INSOLATION IS NOT AN ISSUE...A DEEP AND AT LEAST MODERATELY
MIXED SOUTHWEST FLOW WOULD SUPPORT HIGHS WELL INTO THE 50S ON
WEDNESDAY.

MARINE...

A STRONG UPPER LEVEL TROUGH CURRENTLY OVER THE ROCKY MOUNTAINS WILL
CAUSE SURFACE LOW PRESSURE TO DEEPEN RAPIDLY AS IT MOVES FROM THE
CENTRAL PLAINS TO LAKE HURON BY TOMORROW NIGHT. GALE FORCE WINDS
APPEAR LIKELY BUT THERE IS STILL SOME UNCERTAINTY IN THE EXACT TRACK
OF THE SURFACE LOW. GIVEN THE SYSTEM IS STILL ROUGHLY 36 HOURS
AWAY...WILL HOLD OFF ON UPGRADING TO A GALE WARNING FOR NOW. GALE
FORCE WESTERLY WINDS WILL LIKELY CONTINUE INTO SATURDAY WITH A
STRONG PRESSURE GRADIENT ON THE BACKSIDE OF THE DEPARTING LOW. MORE
TRANQUIL MARINE CONDITIONS ARE EXPECTED TO RETURN ON SUNDAY AS HIGH
PRESSURE RETURNS TO THE REGION.

&&

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

LAKE HURON...
     GALE WATCH...LHZ361-LHZ362-LHZ363-LHZ421-LHZ422-LHZ441-LHZ442-
     LHZ443-LHZ462-LHZ463-LHZ464...FROM 10 PM FRIDAY TO 10 PM
     SATURDAY.

LAKE ST CLAIR...
     GALE WATCH...FROM 10 PM FRIDAY TO 10 PM SATURDAY.

MI WATERS OF LAKE ERIE...
     GALE WATCH...FROM 10 PM FRIDAY TO 10 PM SATURDAY.

&&

AVIATION.....DG
SHORT TERM...AGD
LONG TERM....MR
MARINE.......AGD

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

The office that day

Everything else NWS Detroit, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 2, 4:57 AM ESTHigh Wind WatchDTXGenesee, Huron, Lapeer, Lenawee, Livingston, Macomb and 8 more14 hr
Mar 2, 3:34 PM ESTWind AdvisoryDTXBay, Midland, Saginaw15 hr
Mar 2, 4:07 PM ESTLow Water AdvisoryDTX29 hr
Mar 2, 6:52 PM ESTHigh Wind WarningDTXGenesee, Huron, Lapeer, Lenawee, Livingston, Macomb and 8 more12 hr

Nearby

Gale Warnings in Michigan, 2012Every gale warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.