Alert archive / Michigan / Gale Warnings in 2017

Gale Warning 38, NWS Detroit, MI

November 25, 2017

NWS Detroit, MI issued this gale warning at Nov 25, 2017, 10:27 PM EST. It took effect at Nov 26, 2017, 1:00 PM EST. It was in force for 11 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
Nov 25, 2017, 10:27 PM EST (03:27 UTC)
In effect from
Nov 26, 2017, 1:00 PM EST
Expired
Nov 27, 2017, 12:01 AM EST
In force
11 hr
Issued by
NWS Detroit, MI

The text

As transmitted.

356 
WHUS73 KDTX 260327
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1027 PM EST SAT NOV 25 2017

...WESTERLY GALES OVER NORTHERN LAKE HURON SUNDAY...

.WINDS WILL WEAKEN BRIEFLY DURING THE MORNING HOURS SUNDAY AS 
HIGH PRESSURE BUILDS ACROSS THE REGION AND THE FLOW SHIFTS TO THE 
WEST AND SOUTHWEST. ANOTHER SURGE IN WINDS BEGINS SUNDAY AFTERNOON
AND CONTINUES INTO SUNDAY NIGHT AS A LOW PRESSURE SYSTEM MOVING 
ACROSS NORTHERN ONTARIO TIGHTENS THE PRESSURE GRADIENT AND SHIFTS 
THE WINDS BACK OUT OF THE NORTHWEST. 

LHZ361-261530-
/O.NEW.KDTX.GL.W.0038.171126T1500Z-171127T0000Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
1027 PM EST SAT NOV 25 2017

...GALE WARNING IN EFFECT FROM 10 AM TO 7 PM EST SUNDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM 10 AM TO 7 PM EST SUNDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 27 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 36 
  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 1 PM EST SUNDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EST SUNDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ421-441-442-261000-
/O.CON.KDTX.SC.Y.0084.000000T0000Z-171126T1000Z/
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-
1027 PM EST SAT NOV 25 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST SUNDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 25 KNOTS FROM THE NORTHWEST WITH GUSTS 
  UP TO 32 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL 
  BE 8 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 11 FEET. 

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

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.

&&

$$

BT
4 follow-up statements
761 
WHUS73 KDTX 260842
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
342 AM EST SUN NOV 26 2017

...GALES EXPECTED OVER NORTHERN LAKE HURON...

.WINDS WILL UNDERGO A WEAKENING TREND THIS MORNING AS THEY BACK 
TOWARD THE SOUTHWEST. THESE WINDS WILL THEN QUICKLY STRENGTHEN 
DURING THE AFTERNOON AS A COLD FRONT APPROACHING FROM THE NORTH 
INCREASES THE GRADIENT. LOW LEVEL WARMING WILL REDUCE THE MIXING 
DEPTHS ACROSS THE LAKE, WHICH SHOULD KEEP WINDS BELOW GALE FORCE IN 
THE SOUTHWEST FLOW. WIND GUSTS MAY HOWEVER BRIEFLY APPROACH GALES 
DOWNWIND OF SAGINAW BAY THIS AFTERNOON. THE COLD FRONT WILL MOVE 
INTO NORTHERN LAKE HURON LATE THIS AFTERNOON, THEN PUSH ACROSS THE 
REMAINDER OF THE LAKE DURING THE EVENING. WINDS WILL VEER TO THE 
NORTHWEST WITH THE PASSAGE OF THE FRONT. POST FRONTAL COLD AIR 
ADVECTION WILL BOOST MIXING DEPTHS AND WILL SUPPORT A PERIOD OF GALE 
FORCE WINDS, ESPECIALLY THIS EVENING. THESE WILL BE MORE LIKELY 
NORTH OF STURGEON POINT. MODEL SOLUTIONS HAVE BEEN TRENDING A LITTLE 
STRONGER WITH THE WIND FIELD ALONG THIS COLD FRONT. THIS HAS 
PROMPTED A GALE WARNING TO BE ISSUED ACROSS THE NORTH HALF OF THE 
LAKE FROM LATE THIS AFTERNOON THROUGH THIS EVENING. 

SURFACE HIGH PRESSURE ADVANCING INTO THE REGION WILL LEAD TO A 
WEAKENING OF THE WINDS LATE TONIGHT INTO EARLY MONDAY AFTERNOON. A 
PROLONGED PERIOD OF SOUTH-SOUTHWEST WINDS WILL THEN DEVELOP LATE 
MONDAY AND PERSIST INTO TUESDAY. THE STRONGEST WINDS WILL OCCUR MON 
NIGHT INTO TUES MORNING. VERY GOOD LOW LEVEL WARMING WILL GREATLY 
REDUCE THE MIXING POTENTIAL ACROSS THE LAKES. THUS GALE FORCE WIND 
GUSTS WILL CARRY A LOW ENOUGH PROBABILITY TO REFRAIN FROM THE 
ISSUANCE OF A GALE WATCH. GUSTS TO 30 KNOTS OVER THE OPEN WATERS OF 
LAKE HURON DO HOWEVER LOOK HIGHLY PROBABLE.

LHZ442-260945-
/O.CAN.KDTX.SC.Y.0084.000000T0000Z-171126T1000Z/
HARBOR BEACH TO PORT SANILAC MI-
342 AM EST SUN NOV 26 2017

...SMALL CRAFT ADVISORY IS CANCELLED...

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

$$

LHZ362-262045-
/O.EXB.KDTX.GL.W.0038.171126T1800Z-171127T0600Z/
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
342 AM EST SUN NOV 26 2017

...GALE WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 AM EST
MONDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 AM EST
MONDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 32 KNOTS FROM THE WEST WITH GUSTS UP TO 38 KNOTS. 
  THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 9 FEET WITH A 
  POTENTIAL MAXIMUM WAVE HEIGHT OF 13 FEET. 

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

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ361-262045-
/O.EXT.KDTX.GL.W.0038.171126T1800Z-171127T0600Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
342 AM EST SUN NOV 26 2017

...GALE WARNING NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 AM
EST MONDAY...

THE GALE WARNING IS NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO
1 AM EST MONDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 32 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 37 
  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 SUNDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 7 PM EST SUNDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ422-262045-
/O.EXB.KDTX.SC.Y.0084.000000T0000Z-171127T0300Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
342 AM EST SUN NOV 26 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EST THIS EVENING...

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

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 25 KNOTS FROM THE SOUTHWEST WITH GUSTS 
  UP TO 30 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL 
  BE 4 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 5 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 4 PM EST SUNDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EST SUNDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ421-441-262045-
/O.EXT.KDTX.SC.Y.0084.000000T0000Z-171127T0300Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-
342 AM EST SUN NOV 26 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 PM EST THIS
EVENING...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT UNTIL 10 PM EST THIS
EVENING. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 29 KNOTS FROM THE SOUTHWEST WITH GUSTS 
  UP TO 32 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 4 PM EST SUNDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 AM EST SUNDAY. 

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.

&&

$$

SC
891 
WHUS73 KDTX 261431
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
931 AM EST SUN NOV 26 2017

...GALES OVER NORTHERN LAKE HURON THIS AFTERNOON AND EVENING...

.WINDS WILL STRENGTHEN DURING THE AFTERNOON AS A COLD FRONT 
APPROACHING FROM THE NORTH. LOW LEVEL WARMING WILL REDUCE THE 
MIXING DEPTHS ACROSS THE LAKE, WHICH SHOULD KEEP WINDS BELOW GALE 
FORCE IN THE SOUTHWEST FLOW. WIND GUSTS MAY HOWEVER BRIEFLY 
APPROACH GALES DOWNWIND OF SAGINAW BAY THIS AFTERNOON. THE COLD 
FRONT WILL MOVE INTO NORTHERN LAKE HURON LATE THIS AFTERNOON, THEN
PUSH ACROSS THE REMAINDER OF THE LAKE DURING THE EVENING. WINDS 
WILL VEER TO THE NORTHWEST WITH THE PASSAGE OF THE FRONT. POST 
FRONTAL COLD AIR ADVECTION WILL BOOST MIXING DEPTHS AND WILL 
SUPPORT A PERIOD OF GALE FORCE WINDS, ESPECIALLY THIS EVENING. 
THESE WILL BE MORE LIKELY NORTH OF STURGEON POINT. MODEL SOLUTIONS
HAVE BEEN TRENDING A LITTLE STRONGER WITH THE WIND FIELD ALONG 
THIS COLD FRONT. THIS HAS PROMPTED A GALE WARNING TO BE ISSUED 
ACROSS THE NORTH HALF OF THE LAKE FROM LATE THIS AFTERNOON THROUGH
THIS EVENING. 

SURFACE HIGH PRESSURE ADVANCING INTO THE REGION WILL LEAD TO A 
WEAKENING OF THE WINDS LATE TONIGHT INTO EARLY MONDAY AFTERNOON. A 
PROLONGED PERIOD OF SOUTH-SOUTHWEST WINDS WILL THEN DEVELOP LATE 
MONDAY AND PERSIST INTO TUESDAY. THE STRONGEST WINDS WILL OCCUR MON 
NIGHT INTO TUES MORNING. VERY GOOD LOW LEVEL WARMING WILL GREATLY 
REDUCE THE MIXING POTENTIAL ACROSS THE LAKES. THUS GALE FORCE WIND 
GUSTS WILL CARRY A LOW ENOUGH PROBABILITY TO REFRAIN FROM THE 
ISSUANCE OF A GALE WATCH. GUSTS TO 30 KNOTS OVER THE OPEN WATERS OF 
LAKE HURON DO HOWEVER LOOK HIGHLY PROBABLE.

LHZ441-270315-
/O.CAN.KDTX.SC.Y.0084.000000T0000Z-171127T0300Z/
/O.NEW.KDTX.SC.Y.0085.171126T1800Z-171127T1500Z/
PORT AUSTIN TO HARBOR BEACH MI-
931 AM EST SUN NOV 26 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO
10 AM EST MONDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON
TO 10 AM EST MONDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 29 KNOTS FROM THE SOUTHWEST WITH GUSTS 
  UP TO 31 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 5 PM EST SUNDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 5 PM EST SUNDAY. 

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.

&&

$$

LHZ361-362-270315-
/O.CON.KDTX.GL.W.0038.171126T1800Z-171127T0600Z/
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-
931 AM EST SUN NOV 26 2017

...GALE WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
1 AM EST MONDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 32 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 38 
  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 SUNDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 9 PM EST SUNDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ442-270315-
/O.EXB.KDTX.SC.Y.0084.171127T0100Z-171127T1500Z/
HARBOR BEACH TO PORT SANILAC MI-
931 AM EST SUN NOV 26 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 10 AM
EST MONDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO
10 AM EST MONDAY. 

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 20 KNOTS FROM THE WEST WITH GUSTS UP TO 
  23 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 8 PM EST SUNDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 AM EST MONDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ421-422-270300-
/O.CON.KDTX.SC.Y.0084.000000T0000Z-171127T0300Z/
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-
931 AM EST SUN NOV 26 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS
EVENING...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 29 KNOTS FROM THE SOUTHWEST WITH GUSTS 
  UP TO 32 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 4 PM EST SUNDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 5 PM EST SUNDAY. 

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.

&&

$$

MR
910 
WHUS73 KDTX 262021
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
321 PM EST SUN NOV 26 2017

...GALES OVER NORTHERN LAKE HURON THROUGH THE EVENING...

.SOUTHWEST FLOW WILL CONTINUE TO RAMP UP THROUGH THE REMAINDER OF THE 
AFTERNOON HOURS AS A WEAK COLD FRONT APPROACHING FROM NORTHERN 
MICHIGAN ENHANCES THE PRESSURE GRADIENT. LOW-LEVEL WARMING WILL 
INCREASE STABILITY SLIGHTLY THIS AFTERNOON, KEEPING ANY GUSTS BELOW 
GALE FORCE. ACCOMPANYING THE COLD FRONT PASSAGE TONIGHT WILL BE A 
SURGE IN WINDS OUT OF THE NORTHWEST TO GALE FORCE ACROSS NORTHERN 
LAKE HURON, LEADING TO SIGNIFICANT WAVE HEIGHTS EXCEEDING 10 FEET. 
SHORT-LIVED HIGH PRESSURE WILL BUILD ACROSS THE REGION MONDAY 
ALLOWING WINDS ACROSS THE LOCAL WATERS TO RAPIDLY DIMINISH DURING 
THE DAY, GENERALLY FROM A SOUTH/SOUTHEASTERLY DIRECTION. MONDAY 
NIGHT THE PRESSURE GRADIENT WILL AGAIN TIGHTEN BETWEEN THE DEPARTING 
HIGH PRESSURE AND A DEEPENING AREA OF LOW PRESSURE TRACKING ACROSS 
NORTHERN ONTARIO, LEADING TO A SURGE IN SOUTHEASTERLY WINDS 
APPROACHING GALE FORCE INTO EARLY TUESDAY MORNING. WINDS WILL 
CONTINUE TO BE ELEVATED AND VEER TO THE SOUTHWEST HEADING INTO 
TUESDAY, BUT STRONG LOW-LEVEL WARMING WILL INCREASE STABILITY AND 
LIMIT MIXING DEPTHS LEADING TO GENERALLY 25-30 KNOT GUSTS.

LHZ362-270930-
/O.CON.KDTX.GL.W.0038.000000T0000Z-171127T0600Z/
/O.NEW.KDTX.GL.A.0034.171128T0600Z-171128T1800Z/
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
321 PM EST SUN NOV 26 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST MONDAY...
...GALE WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY
AFTERNOON...

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

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 27 KNOTS FROM THE SOUTH WITH GUSTS UP TO 36 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 2 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 6 AM EST TUESDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 32 KNOTS FROM THE WEST WITH GUSTS UP TO 38 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 SUNDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 9 PM EST SUNDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A 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.

&&

$$

LHZ361-270600-
/O.CON.KDTX.GL.W.0038.000000T0000Z-171127T0600Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
321 PM EST SUN NOV 26 2017

...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST MONDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 32 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 37 
  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 SUNDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 7 PM EST SUNDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ421-422-270300-
/O.CON.KDTX.SC.Y.0084.000000T0000Z-171127T0300Z/
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-
321 PM EST SUN NOV 26 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS
EVENING...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 29 KNOTS FROM THE SOUTHWEST WITH GUSTS 
  UP TO 32 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 4 PM EST SUNDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 5 PM EST SUNDAY. 

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.

&&

$$

LHZ441-270930-
/O.CON.KDTX.SC.Y.0085.000000T0000Z-171127T1500Z/
PORT AUSTIN TO HARBOR BEACH MI-
321 PM EST SUN NOV 26 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
MONDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 29 KNOTS FROM THE SOUTHWEST WITH GUSTS 
  UP TO 31 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 5 PM EST SUNDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 5 PM EST SUNDAY. 

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.

&&

$$

LHZ442-270930-
/O.CON.KDTX.SC.Y.0084.171127T0100Z-171127T1500Z/
HARBOR BEACH TO PORT SANILAC MI-
321 PM EST SUN NOV 26 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 10 AM EST MONDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 20 KNOTS FROM THE WEST WITH GUSTS UP TO 
  23 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 8 PM EST SUNDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 AM EST MONDAY. 

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.

&&

$$

LHZ363-270930-
/O.NEW.KDTX.GL.A.0034.171128T0600Z-171128T1800Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
321 PM EST SUN NOV 26 2017

...GALE WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY
AFTERNOON...

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

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 26 KNOTS FROM THE SOUTH WITH GUSTS UP TO 35 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 1 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 10 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A 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.

&&

$$
771 
WHUS73 KDTX 270501
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1201 AM EST MON NOV 27 2017

...GALES DIMINISHING TONIGHT...

.SHORT-LIVED HIGH PRESSURE WILL BUILD ACROSS THE REGION MONDAY 
ALLOWING WINDS ACROSS THE LOCAL WATERS TO RAPIDLY DIMINISH DURING 
THE DAY, GENERALLY FROM A SOUTH/SOUTHEASTERLY DIRECTION. MONDAY 
NIGHT THE PRESSURE GRADIENT WILL AGAIN TIGHTEN BETWEEN THE 
DEPARTING HIGH PRESSURE AND A DEEPENING AREA OF LOW PRESSURE 
TRACKING ACROSS NORTHERN ONTARIO, LEADING TO A SURGE IN 
SOUTHEASTERLY WINDS APPROACHING GALE FORCE INTO EARLY TUESDAY 
MORNING. WINDS WILL CONTINUE TO BE ELEVATED AND VEER TO THE 
SOUTHWEST HEADING INTO TUESDAY, BUT STRONG LOW-LEVEL WARMING WILL 
INCREASE STABILITY AND LIMIT MIXING DEPTHS LEADING TO GENERALLY 
25-30 KNOT GUSTS.

LHZ362-271715-
/O.CAN.KDTX.GL.W.0038.000000T0000Z-171127T0600Z/
/O.CON.KDTX.GL.A.0034.171128T0600Z-171128T1800Z/
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
1201 AM EST MON NOV 27 2017

...GALE WATCH REMAINS IN EFFECT FROM LATE MONDAY NIGHT THROUGH
TUESDAY AFTERNOON...
...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS CANCELLED THE
GALE WARNING THAT WAS IN EFFECT TONIGHT. A GALE WATCH REMAINS IN
EFFECT MONDAY NIGHT AND TUESDAY. 

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 27 KNOTS FROM THE SOUTH WITH GUSTS UP TO 36 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 2 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 5 AM EST TUESDAY. 

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.

&&

$$

LHZ361-270615-
/O.CAN.KDTX.GL.W.0038.000000T0000Z-171127T0600Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
1201 AM EST MON NOV 27 2017

...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS CANCELLED THE
GALE WARNING FOR TONIGHT. A GALE WATCH REMAINS IN EFFECT MONDAY 
NIGHT AND TUESDAY. 

$$

LHZ441-271500-
/O.CON.KDTX.SC.Y.0085.000000T0000Z-171127T1500Z/
PORT AUSTIN TO HARBOR BEACH MI-
1201 AM EST MON NOV 27 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
MONDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 22 KNOTS FROM THE NORTHWEST WITH GUSTS 
  UP TO 25 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL 
  BE 6 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 8 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 11 PM EST SUNDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 2 AM EST MONDAY. 

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.

&&

$$

LHZ442-271500-
/O.CON.KDTX.SC.Y.0084.000000T0000Z-171127T1500Z/
HARBOR BEACH TO PORT SANILAC MI-
1201 AM EST MON NOV 27 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
MONDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT 
  SUSTAINED WINDS UP TO 19 KNOTS FROM THE NORTHWEST WITH GUSTS 
  UP TO 22 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 12 AM EST MONDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 AM EST MONDAY. 

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.

&&

$$

LHZ363-271715-
/O.CON.KDTX.GL.A.0034.171128T0600Z-171128T1800Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
1201 AM EST MON NOV 27 2017

...GALE WATCH REMAINS IN EFFECT FROM LATE MONDAY NIGHT THROUGH
TUESDAY AFTERNOON...

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 26 KNOTS FROM THE SOUTH WITH GUSTS UP TO 35 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 1 AM EST TUESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 10 AM EST TUESDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A 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.

&&

$$

BT

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 Nov 25, 7:05 PM EST, 3 hours 22 minutes earlier.

Area forecast discussion, Nov 25, 7:05 PM EST, 3 hours 22 minutes before
Area Forecast Discussion
National Weather Service Detroit/Pontiac MI
705 PM EST Sat Nov 25 2017

.AVIATION...

NW flow will continue to bring cool and dry air into Lower Michigan
during the night. Surface observations indicate temperatures
generally in the 30s and dewpoint in the teens over Wisconsin as an
indication of the cool/dry advection that will take place as high
pressure moves eastward during the night. This, along with
subsidence in NW flow aloft, will help produce a diminishing cloud
trend. Expect the widespread coverage of VFR/MVFR stratocu, with a
few pockets of light rain, to diminish to lake induced streamers of
clouds having lower coverage over SE Michigan. Backing low level flow
will then lead to even more diminishing cloud coverage overnight as
long as Lake Michigan does not activate in any residual boundary
layer instability under the subsidence inversion. VFR under high
clouds and gusty southwest wind will then develop Sunday afternoon
ahead of the next cold front moving in Sunday night.

For DTW... Mostly VFR stratocu above 5000 ft will hold during the
evening and then dissipate overnight. Clear sky toward sunrise could
develop scattered stratocu during Sunday morning before dissipating
in dry air by noon. Northwest wind gusting near 20 knots will
diminish overnight and back toward the southwest before increasing
again to gusts around 20 knots Sunday afternoon, generally favorable
for operations through the day.

//DTW THRESHOLD PROBABILITIES...

* Medium for ceiling 5000 ft or less during the evening.

&&

.PREV DISCUSSION...
Issued at 302 PM EST Sat Nov 25 2017

DISCUSSION...

Brief period of height falls through the evening period as a weak
shortwave rapidly traverses southeast Michigan. Attendant secondary
cold front timed to lift through this evening, with a solid period of
cold air advection subsequently commencing overnight. The brief
uptick in cva coincident with the wave passage augmented by a modest
lake induced downstream moisture flux will maintain a low chance for
light rain showers/sprinkles over the next several hours. Boundary
layer appears too warm to support snow. Satellite does show a higher
diurnal component to the existing stratocu deck, particularly with
southward extent. This suggests that the residual moist layer will
become increasingly susceptible to steady post-frontal drying and mid
level subsidence overnight. This will favor some degree of scattering
during the early morning hours, with simply pockets of stratus
surviving an increasingly hostile trek downstream. Degree of cold air
advection will support lows tonight of mid-upper 20s, a couple
degrees cooler should a larger area of open sky emerge late.

Surface ridging lifts through on Sunday, prompting a steady backing
of the low level flow with time. This process will establish weak
warm air advection by afternoon, while further aiding the removal of
any lingering saturation still residing below the existing
inversion. This will favor a high degree of sun. Highs generally in
the vicinity of 40 degrees - or just a touch below normal.

Weakening frontal boundary will advance into central lower MI Sunday
night as a low amplitude wave digging southeast glances across
northern lake Huron before sweeping east. Displacement of the main
dynamics to the north and a lack of moisture advection will limit
local affects to simply some increase in mid level cloudiness and a
brief shot of cold air advection over mainly the Tri-cities and
thumb.

Upper heights steadily climb to start the work week as shortwave
upper ridging builds into the region. The corresponding rise in mean
thicknesses will augment reemerging weak warm air advection as low
level flow maintains a southerly component.  This will give the
resident air mass a solid temperature boost under plenty of
sunshine. Temperatures are notably running warmer than model
guidance consensus in recent days - a trend that suggests that
siding on the warmer side of the spectrum is favorable going forward
within this general pattern.

Low level thermal ridge to move in by Tuesday morning and boost
highs 10+ degrees above average, into the mid 50s. Tuesday will see
gusty southwest flow as gradient tightens ahead of approaching cold
front. The parent low will remain over northern Ontario, so the
strongest forcing and cold air advection will remain to the north of
SE Michigan. Still, some isolated showers possible with frontal
passage Tuesday evening. Post-frontal highs Wednesday and Thursday
will be closer to normal for late November.

Transiting surface high pressure will keep things quiet Wednesday,
while a better chance of precip returns on Thursday as a digging
upper trough allows a low to develop/deepen over the region. Model
guidance showing disagreement in timing and placement of this low,
but looking like a good chance for rain Thursday afternoon and
evening, with some snow possibly mixing in on the back side of the
system. Much more impressive cold air advection will follow this
low, and quiet weather expected for next weekend as ridging
throughout the troposphere moves in behind the departing system.

MARINE...

West/northwest winds will continue to remain elevated as a secondary
cold front moves across the region into early tonight. In the wake
of the front, gusts of 30-35 knots will be possible tonight over the
open Lake Huron waters as colder air filtering in from the northwest
promotes unstable and favorable mixing conditions. Gusts of 25-30
knots will be possible across outer Saginaw Bay and the nearshore
waters of the Thumb region, with gusts of 20-25 knots across the
rest of the local waters. Winds will weaken briefly during the
morning and early afternoon hours Sunday as high pressure builds
across the region and the flow shifts to the west/southwest. Another
surge in winds begins late Sunday afternoon and continues into
Sunday night as a low pressure system moving across northern Ontario
tightens the pressure gradient and shifts the winds back out of the
northwest. Wave heights will build up to 10 feet over central and
southern Lake Huron tonight, with wave heights of 6-9 feet possible
across the nearshore waters of the Thumb. Wave heights will decrease
early Sunday before building again over central Lake Huron by Sunday
evening.

&&

.DTX WATCHES/WARNINGS/ADVISORIES...

MI...NONE.

Lake Huron...Small Craft Advisory until 5 AM EST Sunday for LHZ421-441-442.

Lake St Clair...NONE.

Michigan waters of Lake Erie...NONE.

&&

AVIATION.....BT
DISCUSSION...MR/TF
MARINE.......IRL

You can obtain your latest National Weather Service forecasts online
at www.weather.gov/detroit.
Hazardous weather outlook, Nov 25, 3:42 AM EST, 18 hours 45 minutes before
Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
342 AM EST Sat Nov 25 2017

MIZ047>049-053>055-060>063-068>070-075-076-082-083-260845-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
342 AM EST Sat Nov 25 2017

This hazardous weather outlook is for southeast Michigan.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-260845-
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-
342 AM EST Sat Nov 25 2017

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

.DAY ONE...Today and Tonight

Small craft advisories are in effect for portions of Lake Huron.
Please refer to the latest marine forecasts for details.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

You can obtain your latest National Weather Service forecasts online
at www.weather.gov/detroit.

SC

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 26, 9:31 AM ESTSmall Craft AdvisoryDTX24 hr
Nov 26, 3:21 PM ESTGale WatchDTX19 hr

Nearby

Gale Warnings in Michigan, 2017Every gale warning in 2017

Sources

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