Gale Warning 8, NWS Detroit, MI

511 
WHUS73 KDTX 112055
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
355 PM EST WED FEB 11 2015

...NORTHERLY GALES TONIGHT THROUGH THURSDAY...

.LOW PRESSURE WILL CONTINUE TO TRACK OVER LOWER MICHIGAN TONIGHT 
ALLOWING WINDS TO BECOME NORTHERLY OVERNIGHT. IN ADDITION WIND GUSTS 
ARE ALSO EXPECTED TO INCREASE TO NEAR 40 KNOTS RESULTING IN GALE 
WARNINGS ACROSS MUCH OF LAKE HURON OVERNIGHT AND INTO THURSDAY 
MORNING. THE INCREASED WINDS WILL ALSO CAUSE FREEZING SPRAY FOR LAKE 
HURON AND THEREFORE A HEAVY FREEZING SPRAY WARNING WILL REMAIN IN 
EFFECT. HIGH PRESSURE WILL BUILD BACK INTO THE REGION THURSDAY NIGHT 
AND FRIDAY ALLOWING WINDS TO DECREASE BELOW GALE WARNING CRITERIA. 

LHZ361-120930-
/O.EXB.KDTX.GL.W.0008.150212T0000Z-150212T1700Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
355 PM EST WED FEB 11 2015

...GALE WARNING IN EFFECT FROM 7 PM THIS EVENING TO NOON EST
THURSDAY...

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 30 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 38 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 4 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 5 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 10 PM WEDNESDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 11 PM WEDNESDAY. 

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.

&&

$$

LHZ362-120930-
/O.EXT.KDTX.GL.W.0008.150212T0000Z-150213T0300Z/
/O.CON.KDTX.UP.W.0009.150212T0300Z-150213T0300Z/
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
355 PM EST WED FEB 11 2015

...GALE WARNING NOW IN EFFECT FROM 7 PM THIS EVENING TO 10 PM EST
THURSDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 10 PM THIS
EVENING TO 10 PM EST THURSDAY...

THE GALE WARNING IS NOW IN EFFECT FROM 7 PM THIS EVENING TO 10 PM
EST THURSDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 32 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 46 
  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 THURSDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 4 AM THURSDAY. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 10 PM THIS EVENING 
  TO 10 PM EST THURSDAY.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

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.

&&

$$

LHZ363-120930-
/O.CON.KDTX.UP.W.0009.150212T0300Z-150213T0300Z/
/O.CON.KDTX.GL.W.0008.150212T0600Z-150213T0300Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
355 PM EST WED FEB 11 2015

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 10 PM THIS
EVENING TO 10 PM EST THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 1 AM TO 10 PM EST
THURSDAY...

* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 10 PM THIS EVENING 
  TO 10 PM EST THURSDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 46 
  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 THURSDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 5 AM THURSDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

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>464-120930-
/O.CON.KDTX.GL.W.0008.150212T1000Z-150213T0300Z/
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-
355 PM EST WED FEB 11 2015

...GALE WARNING REMAINS IN EFFECT FROM 5 AM TO 10 PM EST
THURSDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 30 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 41 
  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 11 AM THURSDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 6 AM THURSDAY. 

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.

&&

$$

LHZ421-441>443-120930-
/O.CON.KDTX.GL.W.0008.150212T1000Z-150212T2100Z/
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-
355 PM EST WED FEB 11 2015

...GALE WARNING REMAINS IN EFFECT FROM 5 AM TO 4 PM EST
THURSDAY...

* WIND: DURING THE GALE WARNING...EXPECT SUSTAINED WINDS UP TO 
  29 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 41 KNOTS. 

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

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.

&&

$$

RK

299 
WHUS73 KDTX 120841
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
341 AM EST THU FEB 12 2015

...NORTHERLY GALES THROUGH THIS EVENING...

.NORTHERLY FLOW IN THE WAKE OF A PASSING ARCTIC COLD FRONT WILL 
INCREASE AS THEY SPREAD ACROSS ALL OF LAKE HURON. WINDS WILL GUST TO 
40 KNOTS AT TIMES DURING THE PEAK OF THE EVENT THIS MORNING AND 
EARLY AFTERNOON THUS THE GALE WARNING WILL CONTINUE AS IS. THOUGH 
ICE CONTINUES TO SPREAD ACROSS LAKE HURON...THERE IS STILL OPEN 
WATER THROUGH THE CENTRAL PORTION OF THE LAKE NECESSITATING THE 
HEAVY FREEZING SPRAY WARNING. HIGH PRESSURE WILL BUILD BACK ACROSS 
THE REGION TONIGHT AND FRIDAY WHICH WILL ALLOW WINDS TO RELAX DURING 
THAT PERIOD. THE NEXT CLIPPER AND ARCTIC FRONT ARE NOT FAR BEHIND 
AND WILL DROP THROUGH THE AREA FRIDAY NIGHT AND EARLY SATURDAY. THIS 
WILL CAUSE WINDS TO RAMP BACK UP AND LIKELY NECESSITATE GALE 
WARNINGS ONCE AGAIN.

LHZ363-122130-
/O.CON.KDTX.GL.W.0008.000000T0000Z-150213T0300Z/
/O.CON.KDTX.UP.W.0009.000000T0000Z-150213T0300Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
341 AM EST THU FEB 12 2015

...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 10 PM EST THIS 
  EVENING. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 44 
  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 3 AM THURSDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 6 AM THURSDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

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.

&&

$$

LHZ362-122130-
/O.CON.KDTX.GL.W.0008.000000T0000Z-150213T0300Z/
/O.CON.KDTX.UP.W.0009.000000T0000Z-150213T0300Z/
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
341 AM EST THU FEB 12 2015

...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 10 PM EST THIS 
  EVENING. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE NORTH 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 ARE EXPECTED AROUND 3 AM THURSDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 AM THURSDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

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>464-122130-
/O.CON.KDTX.GL.W.0008.150212T1000Z-150213T0300Z/
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 AM EST THU FEB 12 2015

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 30 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 42 
  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 AM THURSDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 7 AM THURSDAY. 

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.

&&

$$

LHZ421-441>443-122100-
/O.CON.KDTX.GL.W.0008.150212T1000Z-150212T2100Z/
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 AM EST THU FEB 12 2015

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

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

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

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.

&&

$$

LHZ361-121700-
/O.CON.KDTX.GL.W.0008.000000T0000Z-150212T1700Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
341 AM EST THU FEB 12 2015

...GALE WARNING REMAINS IN EFFECT UNTIL NOON EST TODAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 25 KNOTS FROM THE NORTH WITH GUSTS UP TO 35 
  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 5 AM THURSDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 AM THURSDAY. 

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.

&&

$$

DRK

561 
WHUS73 KDTX 121438
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
938 AM EST THU FEB 12 2015

...NORTHERLY GALES THROUGH THIS EVENING...

.NORTHERLY FLOW IN THE WAKE OF A PASSING ARCTIC COLD FRONT WILL 
INCREASE AS THEY SPREAD ACROSS ALL OF LAKE HURON. WINDS WILL GUST TO 
40 KNOTS AT TIMES DURING THE PEAK OF THE EVENT THIS MORNING AND 
EARLY AFTERNOON THUS THE GALE WARNING WILL CONTINUE AS IS. THOUGH 
ICE CONTINUES TO SPREAD ACROSS LAKE HURON...THERE IS STILL OPEN 
WATER THROUGH THE CENTRAL PORTION OF THE LAKE NECESSITATING THE 
HEAVY FREEZING SPRAY WARNING. HIGH PRESSURE WILL BUILD BACK ACROSS 
THE REGION TONIGHT AND FRIDAY WHICH WILL ALLOW WINDS TO RELAX DURING 
THAT PERIOD. THE NEXT CLIPPER AND ARCTIC FRONT ARE NOT FAR BEHIND 
AND WILL DROP THROUGH THE AREA FRIDAY NIGHT AND EARLY SATURDAY. THIS 
WILL CAUSE WINDS TO RAMP BACK UP AND LIKELY NECESSITATE GALE 
WARNINGS ONCE AGAIN.

LHZ361-122100-
/O.EXT.KDTX.GL.W.0008.000000T0000Z-150212T2100Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
938 AM EST THU FEB 12 2015

...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 NORTH WITH GUSTS UP TO 34 
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 1 FEET 
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 1 FEET. 

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 9 AM THURSDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 9 AM THURSDAY. 

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.

&&

$$

LHZ363-130245-
/O.CON.KDTX.GL.W.0008.000000T0000Z-150213T0300Z/
/O.CON.KDTX.UP.W.0009.000000T0000Z-150213T0300Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
938 AM EST THU FEB 12 2015

...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 10 PM EST THIS 
  EVENING. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 30 KNOTS FROM THE NORTH WITH GUSTS UP TO 42 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 9 AM THURSDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 9 AM THURSDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

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.

&&

$$

LHZ362-130245-
/O.CON.KDTX.GL.W.0008.000000T0000Z-150213T0300Z/
/O.CON.KDTX.UP.W.0009.000000T0000Z-150213T0300Z/
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
938 AM EST THU FEB 12 2015

...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 10 PM EST THIS 
  EVENING. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 29 KNOTS FROM THE NORTH WITH GUSTS UP TO 41 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 9 AM THURSDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 9 AM THURSDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

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>464-130245-
/O.CON.KDTX.GL.W.0008.000000T0000Z-150213T0300Z/
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-
938 AM EST THU FEB 12 2015

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 29 KNOTS FROM THE NORTH WITH GUSTS UP TO 40 
  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 9 AM THURSDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 9 AM THURSDAY. 

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.

&&

$$

LHZ421-441>443-122100-
/O.CON.KDTX.GL.W.0008.000000T0000Z-150212T2100Z/
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-
938 AM EST THU FEB 12 2015

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

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

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

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.

&&

$$

SS

257 
WHUS73 KDTX 122054
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
354 PM EST THU FEB 12 2015

...DIMINISHING NORTHERLY WINDS THIS EVENING...

.NORTHERLY FLOW WILL CONTINUE TO DIMINISH THROUGH THE EVENING AS HIGH 
PRESSURE BUILDS IN OVER THE AREA AS WINDS COME BELOW GALES.  THE 
NEXT CLIPPER AND ASSOCIATED ARCTIC FRONT WILL APPROACH THE GREAT 
LAKES REGION LATER IN THE DAY ON FRIDAY WITH THE FRONTAL PASSAGE 
SATURDAY MORNING.  THE STRONG ARCTIC FRONT WILL BRING STRONG WINDS 
AND BITTERLY COLD TEMPERATURES THROUGH THE DAY ON SATURDAY.  A GALE 
WATCH HAS BEEN ISSUED FOR ALL MARINE ZONES STARTING EARLY SATURDAY 
MORNING.

LHZ362-363-130900-
/O.CAN.KDTX.GL.W.0008.000000T0000Z-150213T0300Z/
/O.CON.KDTX.UP.W.0009.000000T0000Z-150213T0300Z/
/O.NEW.KDTX.GL.A.0008.150214T0900Z-150215T0900Z/
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-
354 PM EST THU FEB 12 2015

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...
...GALE WATCH IN EFFECT FROM LATE FRIDAY NIGHT THROUGH LATE
SATURDAY NIGHT...
...GALE WARNING IS CANCELLED...

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

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 31 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 47 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 3 PM SATURDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 8 PM SATURDAY. 

THE GALE WARNING HAS BEEN CANCELLED. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 10 PM EST THIS 
  EVENING. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

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 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.

&&

$$

LHZ462>464-130900-
/O.CAN.KDTX.GL.W.0008.000000T0000Z-150213T0300Z/
/O.NEW.KDTX.GL.A.0008.150214T0900Z-150215T0900Z/
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-
354 PM EST THU FEB 12 2015

...GALE WATCH IN EFFECT FROM LATE FRIDAY NIGHT THROUGH LATE
SATURDAY NIGHT...
...GALE WARNING IS CANCELLED...

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

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 32 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 46 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 PM SATURDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 7 PM SATURDAY. 

THE GALE WARNING HAS BEEN CANCELLED. 

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.

&&

$$

LHZ361-421-441>443-130900-
/O.CAN.KDTX.GL.W.0008.000000T0000Z-150212T2100Z/
/O.NEW.KDTX.GL.A.0008.150214T0900Z-150215T0900Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
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-
354 PM EST THU FEB 12 2015

...GALE WATCH IN EFFECT FROM LATE FRIDAY NIGHT THROUGH LATE
SATURDAY NIGHT...
...GALE WARNING IS CANCELLED...

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

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS 
  UP TO 30 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 44 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 SATURDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 PM SATURDAY. 

THE GALE WARNING HAS BEEN CANCELLED. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LCZ460-LEZ444-LHZ422-130900-
/O.NEW.KDTX.GL.A.0008.150214T0900Z-150215T0900Z/
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
354 PM EST THU FEB 12 2015

...GALE WATCH IN EFFECT FROM LATE FRIDAY NIGHT THROUGH LATE
SATURDAY NIGHT...

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

* WIND: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS UP TO 24 
  KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 36 KNOTS. 

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

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.

&&

$$

SS

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
344 AM EST WED FEB 11 2015

.SHORT TERM...TODAY AND TONIGHT

A LOW PRESSURE SYSTEM OVER THE WESTERN UP WILL TRACK EAST THROUGH
THE NORTHERN GREAT LAKES TODAY...BRINGING A COLD FRONT THROUGH
SOUTHEAST MICHIGAN THIS AFTERNOON. DESPITE THE FAIRLY GENEROUS QPF
PAINTED BY THE MODELS AS THIS SYSTEM TRACKS THROUGH THE GREAT
LAKES...UPSTREAM OBSERVATIONS PAINT A DIFFERENT STORY AS
VISIBILITIES ONLY BRIEFLY GOING DOWN TO 2 SM ACROSS WISCONSIN AHEAD
OF THE COLD FRONT. IN ADDITION UPSTREAM RAOB
OBSERVATIONS...KMPX...SHOW A FAIRLY SHALLOW LAYER OF AVAILABLE
MOISTURE FOR THE SYSTEM TO PRODUCE SNOW. THIS AFTERNOON BEHIND THE
COLD FRONT THIS MEAGER MOISTURE GETS STRIPPED OUT RATHER QUICKLY AS
SUBSIDENCE AND DRY AIR SHOULD SHUT OFF MANY OF THE SNOW SHOWERS
RATHER QUICKLY. THESE FACTORS DO NOT JUSTIFY THE CURRENT FAIRLY HIGH
POPS IN THE GOING FORECAST...ESPECIALLY LATE THIS AFTERNOON AFTER
FROPA.  THEREFORE WILL LOWER POPS FOR MUCH OF THE DAY...WITH A
TARGET OF LATE THIS MORNING AND EARLY AFTERNOON FOR THE HIGHEST POPS
JUST AHEAD OF THE COLD FRONT. SNOWFALL AMOUNTS TODAY LOOK TO BE
RATHER MEAGER...WITH UP TO AN INCH POSSIBLE ACROSS THE SAGINAW
VALLEY AND NORTHERN THUMB...AND ONLY A FEW TENTHS OF AN INCH ACROSS
MOST OF THE REST OF THE CWA. MODEST WARM AIR ADVECTION AHEAD OF THE
COLD FRONT WILL ALLOW DAYTIME HIGHS TO RISE INTO THE LOWER 30S TODAY.

AFTER THIS PUSH OF DRY AIR THIS AFTERNOON...SOME MOISTURE ACTUALLY
RETURNS OVERNIGHT WITH COLD CYCLONIC FLOW ON THE BACKSIDE OF THE LOW
AND STRONG COLD AIR ADVECTION AS 850 MB TEMPERATURES PLUNGE INTO THE
MIDDLE TO UPPER TEENS. A FAIRLY STRONG PV ANOMALY WILL TAKE
ADVANTAGE OF THIS PUSH OF MOISTURE...WITH THE CHANCE FOR LIGHT SNOW
SHOWERS CONTINUING INTO THE OVERNIGHT HOURS. GIVEN THE SHALLOW
NATURE OF THE MOISTURE AMOUNTS ARE ONLY EXPECTED TO BE A FEW TENTHS
AT BEST. DESPITE THE ABUNDANT CLOUD COVER OVERNIGHT...THE STRONG
PUSH OF COLD AIR WILL BRING OVERNIGHT LOWS DOWN INTO THE SINGLE
DIGITS ABOVE ZERO AWAY FROM THE DETROIT METRO AREA...WITH AROUND 10
DEGREES EXPECTED IN DETROIT. THE COMBINATION OF COLD TEMPERATURES
AND GUSTY WINDS WILL CAUSE WIND CHILLS TO FALL TO AROUND -10 DEGREES
ALONG AND NORTH OF INTERSTATE 69 LATE TONIGHT.

&&

.LONG TERM...THURSDAY THROUGH TUESDAY

HIGH AMPLITUDE RIDGE SETTING UP OVER THE WEST COAST WILL RESULT IN
PERSISTENT DEEP TROUGH OVER THE GREAT LAKES THROUGH THE EXTENDED
PERIOD. THE DEFLECTION OF THE POLAR JET TO ALMOST DUE NORTH/SOUTH
WILL SEND A SERIES OF ARCTIC AIRMASSES THROUGH THE REGION THIS
WEEK...EACH FOLLOWING A VORT LOBE ROTATING AROUND THE DEEP UPPER LOW
OVER NORTHEAST CANADA. THE MAIN CONCERN INTO NEXT WEEK WILL BE THE
PERSISTENT COLD...AND WHEN MIXED WITH THE WIND...WIND CHILL VALUES
FALLING BELOW ZERO WITH A FEW OPPORTUNITIES FOR HEADLINES.

FOR THURSDAY...WE WILL BE ENGULFED BY THE FIRST WAVE OF ARCTIC AIR.
A TRAILING TROUGH AXIS TO THE EXITING SFC LOW WILL PRESENT A
CONTINUED CHANCE FOR SOME SNOW FLAKES EARLY IN THE DAY. AN INFLUX OF
DRY AIR FROM RIDGING AT THE SFC AND ALOFT WILL QUICKLY END ANY
LINGERING SHOWERS BY THE AFTERNOON. STRONG CAA WITH NORTHERLY FLOW
GUSTING TO 30MPH WILL QUICKLY ADVANCE THE THERMAL TROUGH INTO THE
REGION. THIS TROUGH WILL BE SPORTING TEMPERATURES AT 850MB/925MB
AROUND -25C/-20C RESPECTIVELY. HIGH TEMPS WILL DROP NEARLY 20
DEGREES FROM WEDNESDAY HIGHS AND WILL RANGE FROM 10-15F. LOW TEMPS
THURSDAY NIGHT WILL FALL INTO THE NEGATIVE SINGLE DIGITS WITH WIND
CHILL VALUES POSSIBLY RANGING FROM 10 TO 20 DEGREES BELOW ZERO. A
WIND CHILL HEADLINE MAY BE NEEDED. ONLY A SLIGHT BOOST TO TEMPS ON
FRIDAY AS WEAK WAA AHEAD OF THE NEXT SHORTWAVE ALLOWS TEMPS TO RISE
SLIGHTLY TO THE MID TEENS.

THE FIRST OF TWO SNOW CHANCES WILL COME LATE FRIDAY AND OVERNIGHT AS
THE WEAK SFC LOW ASSOCIATED WITH A STRONG MID LEVEL WAVE...PASSES
THROUGH THE NORTHERN GREAT LAKES. THE MID LEVEL WAVE WILL SURGE THE
REGION AS A 150+ KNOT JET FLARES UP ACROSS THE OHIO VALLEY LATE
SATURDAY. LOOKING FOR A GENERAL 1-2 INCHES OF ACCUMULATION BY
SATURDAY AS QPF WILL BE ON THE LOW SIDE BUT HEALTHY LL LAPSE RATES
WITH THE CAA AND SATURATION THROUGH -10 TO -20C IN THE COLUMN AND
DECENT FGEN AROUND 700MB WILL HELP PRODUCE SOME ACCUMULATIONS. THIS
WAVE WILL ALSO USHER IN AN EVEN COLDER AIRMASS AS -25C TEMPS
ENCOMPASS THE ENTIRE GREAT LAKES REGION AND DOWN THROUGH THE OHIO
VALLEY. SATURDAY NIGHT TEMPS WILL FALL INTO THE NEGATIVE SINGLE
DIGITS WITH WIND CHILL VALUES POSSIBLY DROPPING TO 15 TO 25 DEGREES
BELOW ZERO. ANOTHER WIND CHILL HEADLINE MAY BE NEEDED FOR SATURDAY
NIGHT THROUGH SUNDAY NIGHT. WINDS WILL RELAX SOME ON SUNDAY
PROVIDING ONLY A SMALL WINDOW OF RELIEF...RELATIVE TO WIND
CHILL...BUT HIGHS IN THE LOW SINGLE DIGITS WITH ANY WIND WILL KEEP
WIND CHILLS DOWN THROUGH THE DAY. THEY WILL DROP FURTHER SUNDAY
NIGHT AS TEMPS AGAIN DROP INTO THE NEGATIVE SINGLE DIGITS.

HIGH PRESSURE WILL RETURN TO START THE NEXT WORK WEEK. HIGH
TEMPERATURES WILL RECOVER SOME EACH DAY AS UPPER LEVEL RIDGING TRIES
TO BUILD INTO THE REGION BUT LOWS WILL REMAIN IN THE SINGLE DIGITS.

&&

.MARINE...

SOUTHERLY WINDS WILL STRENGTHEN TODAY...GUSTING TO AROUND 20
KNOTS...AHEAD OF A COLD FRONT THAT WILL DROP THROUGH THE REGION THIS
EVENING. WINDS WILL SWITCH AROUND TO THE NORTH OVERNIGHT...AND WITH
THE ADDED INSTABILITY FROM THE ARCTIC AIRMASS...WILL INCREASE TO
GALE FORCE ACROSS MUCH OF LAKE HURON. THE PREVIOUS GALE WATCH HAS
BEEN UPGRADED TO A GALE WARNING FOR TONIGHT THROUGH THURSDAY FOR
WINDS UP TO 40 KNOTS. IN ADDITION...A HEAVY FREEZING SPRAY WARNING
HAS BEEN ISSUED FOR THE OPEN WATERS OF CENTRAL LAKE HURON. HIGH
PRESSURE WILL BUILD BACK INTO THE REGION THURSDAY NIGHT AND FRIDAY
WHICH WILL LESSEN THE PRESSURE GRADIENT AND ALLOW WINDS TO RELAX FOR
A PERIOD. A SECOND ROUND OF ARCTIC AIR WILL BRING A RENEWED INCREASE
IN NORTHERLY WINDS ON SATURDAY WHICH MAY AGAIN LEAD TO HEADLINES
FOR GALES.

&&

.AVIATION...ISSUED 1201 AM EST WED FEB 11 2015

STRATOCU OFF LAKE ERIE EXPANDED NORTHWARD OVER THE DTW CORRIDOR BY
MIDNIGHT LEAVING THE QUESTION OF HOW FAR NORTH THE CLOUDS CAN REACH
BEFORE LOW LEVEL FLOW TURNS MORE TOWARD THE SOUTH...AND EVENTUALLY
SOUTHWEST BEFORE SUNRISE. THE 00Z DTX UPPER AIR SOUNDING INDICATES A
LOW LEVEL INVERSION FAVORABLE FOR A STEADY NORTHWARD SPREAD OF THE
CLOUD PATTERN WHICH SHOULD AT LEAST BRUSH FNT BEFORE BEING SHUNTED
INTO THE THUMB. CEILING WILL BE BORDERLINE IFR/MVFR DEPENDING ON
TERMINAL ELEVATION WITH HIGHER STATIONS SUCH AS YIP AND PTK HANGING
JUST INTO IFR. FARTHER NORTH...VFR CONDITIONS ARE EXPECTED EVEN IF
SOME FLURRIES CAN OCCUR IN THE TRI CITIES AREA ON THE LEADING EDGE
OF WARMER AIR. SNOW WILL THEN OVERSPREAD SE MICHIGAN MORE
CONVINCINGLY DURING THE LATE MORNING THROUGH AFTERNOON AND BRING A
PERIOD OF IFR VISIBILITY...BUT WITH ACCUMULATION RUNNING LESS THAN 1
INCH. CEILING WILL REMAIN IFR WITH SOME FOG FOR A FEW HOURS AFTER
THE SNOW ENDS AND WHILE THE COLD FRONT MOVES THROUGH THE
REGION...GIVING WAY TO MVFR DURING WEDNESDAY EVENING IN COLDER
NORTHWEST WIND.

FOR DTW... BORDERLINE IFR/MVFR CEILING IN STRATOCU OFF THE WEST END
OF LAKE ERIE WILL LINGER THROUGH THE NIGHT. THE UNCERTAINTY LIES
WITH WHEN IT MAY BE PUSHED NORTH OR IF NEW CLOUDS WILL DEVELOP ON
THE LEADING EDGE OF WARMER AIR AFTER SUNRISE. FOR NOW...PLAN TO GIVE
THE STRATOCU A CHANCE TO GET PUSHED NORTH AS THE WIND ABOVE THE
SURFACE TURNS SOUTHWEST BY 12Z. THE NEXT CONCERN IS SNOW THAT WILL
BRING IFR VISIBILITY RESTRICTION BUT ONLY ABOUT A HALF INCH OF
ACCUMULATION BEFORE ENDING TOWARD THE LATTER PORTION OF THE
AFTERNOON.

//DTW THRESHOLD PROBABILITIES...

* HIGH FOR CEILING BELOW 5000 FT TONIGHT...HIGH AFTER 18Z WEDNESDAY.

* HIGH CONFIDENCE PRECIPITATION TYPE WILL BE SNOW WEDNESDAY.

&&

.DTX WATCHES/WARNINGS/ADVISORIES...
MI...NONE.
LAKE HURON...GALE WARNING FROM 5 AM TO 10 PM EST THURSDAY FOR LHZ462>464.

     GALE WARNING FROM 5 AM TO 4 PM EST THURSDAY FOR LHZ421-441>443.

     HEAVY FREEZING SPRAY WARNING FROM 10 PM THIS EVENING TO 10 PM EST
     THURSDAY FOR LHZ362-363.

     GALE WARNING FROM 1 AM TO 10 PM EST THURSDAY FOR LHZ363.

     GALE WARNING FROM 10 PM THIS EVENING TO 10 PM EST THURSDAY FOR
     LHZ362.

LAKE ST CLAIR...NONE.
MICHIGAN WATERS OF LAKE ERIE...NONE.
&&

SHORT TERM...KURIMSKI
LONG TERM....DRK
MARINE.......DRK
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
343 PM EST TUE FEB 10 2015

MIZ047>049-053>055-112045-
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-
343 PM EST TUE FEB 10 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
MICHIGAN.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A WEAK LOW PRESSURE SYSTEM WILL TRACK THROUGH NORTHERN MICHIGAN
WEDNESDAY...PULLING A COLD FRONT THROUGH THE AREA LATE WEDNESDAY
AND WEDNESDAY NIGHT. THIS COULD PRODUCE AROUND AN INCH OF SNOWFALL
THROUGH THIS TIME.

DANGEROUS WIND CHILLS WILL BE POSSIBLE THURSDAY AND THURSDAY NIGHT
AND AGAIN ON SATURDAY AS SEVERAL ROUNDS OF ARCTIC AIR SWEEP
THROUGH THE AREA. WIND CHILL VALUES MAY FALL TO 10 TO 20 DEGREES
BELOW ZERO DURING THESE PERIODS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

MIZ060>063-068>070-075-076-082-083-112045-
SHIAWASSEE-GENESEE-LAPEER-ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-
WASHTENAW-WAYNE-LENAWEE-MONROE-
343 PM EST TUE FEB 10 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
MICHIGAN.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

DANGEROUS WIND CHILLS WILL BE POSSIBLE THURSDAY AND THURSDAY NIGHT
AND AGAIN ON SATURDAY AS SEVERAL ROUNDS OF ARCTIC AIR SWEEP
THROUGH THE AREA. WIND CHILL VALUES MAY FALL TO 10 TO 20 DEGREES
BELOW ZERO DURING THESE PERIODS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-112045-
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-
343 PM EST TUE FEB 10 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A GALE WATCH IS IN EFFECT LATE WEDNESDAY NIGHT AND THURSDAY FOR
THE CENTRAL AND SOUTHERN LAKE HURON. REFER TO THE LATEST MARINE
FORECASTS FOR DETAILS.

.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 (ALL LOWER CASE).

MR