Gale Warning 5, NWS Detroit, MI

192 
WHUS73 KDTX 112100
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
400 PM EST THU JAN 11 2018

...NORTHERLY GALES AND FREEING SPRAY TONIGHT THROUGH FRIDAY NIGHT...

.GUSTS TO NORTH NORTHWEST GALES WILL DEVELOP ACROSS LAKE HURON 
TONIGHT AS COLDER AIR SPREADS ACROSS THE WATERS. GALE WARNINGS 
REMAIN IN EFFECT. IN ADDITION A HEAVY FREEZING SPRAY WARNING HAS 
BEEN ISSUED TO COINCIDE WITH MOST OF THE GALE WARNING 
AREA...INCLUDING THE NEARSHORE ZONES. MAXIMUM WAVES HEIGHTS AROUND 
10 FEET WILL BE COMMON ALONG THE EXPOSED AND ICE FREE WATERS ALONG 
THE THUMB. WINDS AND WAVES WILL DIMINISH AS COLD HIGH PRESSURE 
SETTLES OVER THE WATERS FOR THE WEEKEND. WINDS WILL RAMP UP AGAIN 
EARLY NEXT WEEK AS A CLIPPER MOVES THROUGH THE GREAT LAKES REGION.

LHZ441>443-462>464-120900-
/O.CON.KDTX.GL.W.0005.180112T0800Z-180113T1200Z/
/O.NEW.KDTX.UP.W.0003.180112T1500Z-180113T1200Z/
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-
400 PM EST THU JAN 11 2018

...GALE WARNING REMAINS IN EFFECT FROM 3 AM FRIDAY TO 7 AM EST
SATURDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 10 AM FRIDAY TO
7 AM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
HEAVY FREEZING SPRAY WARNING WHICH IS IN EFFECT FROM 10 AM FRIDAY
TO 7 AM EST SATURDAY. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 10 AM FRIDAY TO 7 AM 
  EST SATURDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 32 KNOTS FROM THE NORTH WITH GUSTS UP TO 39 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 8 PM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 2 PM EST FRIDAY. 

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

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

&&

$$

LHZ362-363-120900-
/O.CON.KDTX.GL.W.0005.180112T0500Z-180113T1200Z/
/O.NEW.KDTX.UP.W.0003.180112T1500Z-180113T1200Z/
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-
400 PM EST THU JAN 11 2018

...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM
EST SATURDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 10 AM FRIDAY TO
7 AM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
HEAVY FREEZING SPRAY WARNING WHICH IS IN EFFECT FROM 10 AM FRIDAY
TO 7 AM EST SATURDAY. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 10 AM FRIDAY TO 7 AM 
  EST SATURDAY. 

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE NORTH WITH GUSTS UP TO 42 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 11 AM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 12 PM EST FRIDAY. 

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

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

&&

$$

LHZ361-120900-
/O.CON.KDTX.GL.W.0005.180112T0500Z-180112T1500Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
400 PM EST THU JAN 11 2018

...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM
EST FRIDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 28 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 39 
  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 3 AM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 4 AM EST FRIDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

DRK

504 
WHUS73 KDTX 120900
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
400 AM EST FRI JAN 12 2018

....NORTHERLY GALES AND FREEING SPRAY TONIGHT THROUGH FRIDAY NIGHT...

.NORTH NORTHWEST WINDS WITH GUSTS TO NEAR 40 KNOTS GALES WILL 
SPREAD SOUTH ACROSS LAKE HURON AS AN ARCTIC FRONT MOVES ACROSS 
THE GREAT LAKES RESULTING IN GALE WARNINGS THAT WILL LAST THROUGH 
SATURDAY MORNING. DUE TO THE FRIGID TEMPERATURES RETURNING TO THE 
REGION, A HEAVY FREEZING SPRAY WARNING IS ALSO IN EFFECT TO GO 
ALONG WITH THE GALE WARNING. AREAS IN THE WARNINGS ARE 
CENTRAL AND SOUTHERN LAKE HURON AND THE NEARSHORE ZONES ALONG THE
NORTHERN AND EASTERN THUMB. WINDS WILL BEGIN TO DECREASE THROUGH 
SATURDAY AFTERNOON AS A COLD ARCTIC HIGH PRESSURE TAKES HOLD. A 
CLIPPER SYSTEM TRACKING THROUGH THE GREAT LAKES EARLY NEXT WEEK 
WILL BRING THE NEXT CHANCE FOR INCREASED WINDS ACROSS THE LAKES.

LHZ441>443-462>464-122100-
/O.CON.KDTX.GL.W.0005.000000T0000Z-180113T1200Z/
/O.CON.KDTX.UP.W.0003.180112T1500Z-180113T1200Z/
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-
400 AM EST FRI JAN 12 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST SATURDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 7 AM EST SATURDAY...

* WIND AND WAVES: DURING THE GALE WARNING, EXPECT SUSTAINED 
  WINDS UP TO 32 KNOTS FROM THE NORTH WITH GUSTS UP TO 39 
  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 8 PM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 4 PM EST FRIDAY. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 10 AM THIS MORNING 
  TO 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
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 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.

&&

$$

LHZ362-363-122100-
/O.CON.KDTX.GL.W.0005.000000T0000Z-180113T1200Z/
/O.CON.KDTX.UP.W.0003.180112T1500Z-180113T1200Z/
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-
400 AM EST FRI JAN 12 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST SATURDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 7 AM EST SATURDAY...

* WIND AND WAVES: DURING THE GALE WARNING, EXPECT SUSTAINED 
  WINDS UP TO 31 KNOTS FROM THE NORTH WITH GUSTS UP TO 42 
  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 11 AM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 10 AM EST FRIDAY. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 10 AM THIS MORNING 
  TO 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
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 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.

&&

$$

LHZ361-121500-
/O.CON.KDTX.GL.W.0005.000000T0000Z-180112T1500Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
400 AM EST FRI JAN 12 2018

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

* WIND AND WAVES: DURING THE GALE WARNING, EXPECT SUSTAINED 
  WINDS UP TO 28 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 38 
  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 4 AM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 3 AM EST FRIDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

DG

934 
WHUS73 KDTX 122058
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
358 PM EST FRI JAN 12 2018


LHZ441>443-462>464-130900-
/O.CON.KDTX.GL.W.0005.000000T0000Z-180113T1200Z/
/O.CON.KDTX.UP.W.0003.000000T0000Z-180113T1200Z/
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-
358 PM EST FRI JAN 12 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST SATURDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 7 AM EST
SATURDAY...

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 7 AM EST SATURDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED 
  WINDS UP TO 33 KNOTS FROM THE NORTH 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 ARE EXPECTED AROUND 3 PM EST FRIDAY 
  WITH THE LARGEST WAVES EXPECTED AROUND 4 PM EST FRIDAY. 

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

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

&&

$$

LHZ362-363-130900-
/O.CON.KDTX.GL.W.0005.000000T0000Z-180113T1200Z/
/O.CON.KDTX.UP.W.0003.000000T0000Z-180113T1200Z/
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-
358 PM EST FRI JAN 12 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST SATURDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 7 AM EST
SATURDAY...

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 7 AM EST SATURDAY.

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

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

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

&&

$$

CB

937 
WHUS73 KDTX 130842
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
342 AM EST SAT JAN 13 2018

...NORTHERLY GALES TO GRADUALLY SUBSIDE THIS MORNING...

.NORTH NORTHWESTERLY WINDS WILL GRADUALLY WEAKEN WITH TIME TODAY AS 
HIGH PRESSURE BUILDING EASTWARD FROM THE NORTHERN PLAINS SLACKENS 
THE PRESSURE GRADIENT. ELEVATED SEAS AND WIND GUSTS APPROACHING 30 
KNOTS AT TIMES WILL STILL BE POSSIBLE FOR MUCH OF THE DAY ACROSS 
SOUTHERN LAKE HURON, BUT SHOULD REMAIN BELOW GALE FORCE. CONTINUED 
FILTERING IN OF COLD AIR OVER ICE FREE AREAS OF LAKE HURON WILL LEAD 
TO AREAS OF FREEZING SPRAY WHICH MAY BE MODERATE TO POSSIBLY HEAVY 
AT TIMES. WINDS WILL DECREASE BELOW 20 KNOTS TONIGHT AND INTO 
SUNDAY, BECOMING SOUTHWEST AHEAD OF A CLIPPER LOW PRESSURE SYSTEM 
THAT WILL TRACK ACROSS SOUTHERN MICHIGAN SUNDAY NIGHT INTO MONDAY. 
INCREASING WINDS ARE EXPECTED WITH THE ARRIVAL OF THE CLIPPER 
SYSTEM, ESPECIALLY ACROSS NORTHERN AND CENTRAL SECTIONS OF THE LAKE 
HURON BASIN.

LHZ441>443-462>464-131600-
/O.EXT.KDTX.GL.W.0005.000000T0000Z-180113T1600Z/
/O.EXT.KDTX.UP.W.0003.000000T0000Z-180113T1600Z/
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 JAN 13 2018

...GALE WARNING NOW IN EFFECT UNTIL 11 AM EST THIS MORNING...
...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT UNTIL 11 AM EST
THIS MORNING...

THE HEAVY FREEZING SPRAY WARNING IS NOW IN EFFECT UNTIL 11 AM EST
THIS MORNING. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 11 AM EST THIS 
  MORNING. 

THE GALE WARNING IS NOW IN EFFECT UNTIL 11 AM EST THIS MORNING. 

* WIND AND WAVES: DURING THE GALE WARNING, EXPECT SUSTAINED 
  WINDS UP TO 38 KNOTS FROM THE NORTH 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 3 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 3 AM EST 
  SATURDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A 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
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.

&&

$$

LHZ362-363-131600-
/O.EXT.KDTX.UP.W.0003.000000T0000Z-180113T1600Z/
/O.CON.KDTX.GL.W.0005.000000T0000Z-180113T1200Z/
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-
342 AM EST SAT JAN 13 2018

...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT UNTIL 11 AM EST
THIS MORNING...
...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING...

THE HEAVY FREEZING SPRAY WARNING IS NOW IN EFFECT UNTIL 11 AM EST
THIS MORNING. 

* EXPECT HEAVY FREEZING SPRAY TO OCCUR UNTIL 11 AM EST THIS 
  MORNING. 

* WIND AND WAVES: DURING THE GALE WARNING, EXPECT SUSTAINED 
  WINDS UP TO 29 KNOTS FROM THE NORTH 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 3 AM EST 
  SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 3 AM EST 
  SATURDAY. 

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A 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
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.

&&

$$

DG

955 
WHUS73 KDTX 131457
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
957 AM EST SAT JAN 13 2018


LHZ441>443-462>464-131600-
/O.CAN.KDTX.GL.W.0005.000000T0000Z-180113T1600Z/
/O.CAN.KDTX.UP.W.0003.000000T0000Z-180113T1600Z/
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-
957 AM EST SAT JAN 13 2018

...GALE WARNING IS CANCELLED...
...HEAVY FREEZING SPRAY WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS CANCELLED THE
HEAVY FREEZING SPRAY WARNING. THE GALE WARNING HAS BEEN
CANCELLED. 

$$

LHZ362-363-131600-
/O.CAN.KDTX.UP.W.0003.000000T0000Z-180113T1600Z/
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-
957 AM EST SAT JAN 13 2018

...HEAVY FREEZING SPRAY WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS CANCELLED THE
HEAVY FREEZING SPRAY WARNING. 

$$

DRK

Area Forecast Discussion
National Weather Service Detroit/Pontiac MI
315 AM EST Thu Jan 11 2018

.DISCUSSION...

Record warmth today as strong and deep southwest flow persists over
Lower Michigan. Stronger winds in the low levels has also limited
fog, despite snow pack still hanging on. Snow cover will continue to
dissipate, and with RAP indicating 925 mb temps reaching 12 C this
afternoon, expecting highs in the 55 to 60 degree range. Chicago was
56 degrees as of 2 AM.

Record highs for Thursday Jan 11...

Detroit 66 (1890) Flint 56 (1975) Saginaw 55 (1975)

In addition, with temperatures currently in the 40s, the high
minimum temperatures for Jan 11th will also be in jeopardy,
ultimately depending on timing of the fropa tonight, but suspect the
records will be broken.

Detroit 38 (1885) Flint 36 (2013) Saginaw 35 (2013)

The warmth will be shorted lived however, as arctic air is already
surging through Minnesota, and will spill over into southeast
Michigan late tonight-Friday morning.

Full amplitude upper level trough over central North America today
will remain progressive and slide East. The stronger southern wave
rounding the base over southern Texas maintains some linkage with
the northern stream, and thus should be just a bit too far east to
have much of an impact on our weather before the upper level energy
coming out of the Rockies interacts with the system and lifts it
northeast on Friday, as 00z Euro indicating the surface and 500 MB
height fall center tracking near/through the Washington DC area
tonight.

Northern stream trough axis over upper Mississippi River Valley
around midnight will move over central Lower Michigan Friday
Afternoon. Surface front looks to be moving through southeast
Michigan after Midnight. PW values in excess of 1 inch this evening
will support widespread rain showers, as mid level lapse rates are
even descent with showalter index falling toward zero.

With low level cold air rapidly surging in late tonight, dropping
temperatures below freezing by 12z Friday, a rapid freeze up on
untreated roads is possible as temperatures fall into the 20s.
Upper level pv advection/Mid level FGEN flare up Friday morning
expected to support a short transition to sleet/freezing rain with
more prolonged snow, producing just a couple inches of accumulation
before shutting off Friday afternoon. Excellent cold advection and
good mixing within the arctic airmass during Friday should support
gusts to 30 mph with no problem.

Long fetched northerly flow developing over Lake Huron Friday Night,
with 850 mb temps lowering to around -23 C draws concern for the
eastern Thumb region, specifically Port Huron. Intensity of the
band(s) is probably the main question mark, as models are in pretty
good agreement indicating prolonged 925 mb omega/convergence set up
along the shoreline. Nam soundings at Port Huron indicating
inversion heights at or just above 4 kft, with about 25 J/kg of Cape
intersecting the DGZ, with a 3 kft layer of super-saturation with
respect to ice. Seems like there is a localized 2 to 4 inch
potential assuming the band remains persistent.

Highs stuck in the teens Saturday with 850 mb temps in negative
lower twenties. Euro indicating 1038 MB high pressure center
developing Saturday night on top of the CWA and looks like there is
good chance for mins around and below zero across much of the area.

Slight warming on Sunday, 850 mb temps rising to between -14 C
to -18 C, ahead of a clipper system which looks to be swinging
through on Monday, delivering a reinforcing shot of cold air for
Tuesday. Looks like there is around 1.5 g/kg of specific humidity at
the 850 MB level, and with excellent snow to liquid ratios, 1 to 3
inches of accumulation looks likely, ultimately dependent on the
track of the system of course.

&&

.MARINE...

Very mild south flow will continue over Lake Huron and Lower
Michigan today and set up strong stability over marine areas. This
will cap wind gusts below 30 knots across the open waters of central
Lake Huron and limit wave growth. The mild air will also lead to
areas of fog, drizzle, and rain showers before the an arctic front
approaches tonight. Expect a transition from rain to wintry mix to
snow as the front moves southward. Cold air rushing in behind the
front will then deepen the mixed layer over the water and promote
northerly gales beginning after midnight on the north end and
spreading to the south end of Lake Huron by sunrise Friday. Expect
gales to then last through Friday night over the south half of the
lake. Gale warnings are now in effect for the nearshore and open
waters. Winds and waves will be on the decrease Saturday as arctic
high pressure expands across the region and holds through Sunday.

&&

.HYDROLOGY...

Very mild air over the region will produce record or near record
high temperatures in the mid and upper 50s today. This will result
in rapidly melting snow before rain showers become widespread
tonight. The combination of runoff from melting snow today and
increased rainfall tonight on top of frozen ground could lead to
ponding of water on roads and other prone areas. Creeks and streams
around the region could also become elevated due to runoff. Total
rainfall is expected to be in the 0.25 to 0.5 inch range before
changing over the snow late tonight.

&&

.PREV DISCUSSION...
Issued at 1200 AM EST Thu Jan 11 2018

AVIATION...

Extensive lower stratus will remain prevalent through the period as
warm, moist S-SW flow persists. Recent improvement in observations
from PTK northward lends increasing confidence for cigs to remain at
IFR or greater going forward. Across the Detroit corridor, shallow
low level dry air advection proving adequate in lifting conditions
into VFR, with little model support now to suggest anything lower
than MVFR going forward this morning. Diminishing fog component as
well, thanks to a moderate gradient flow. Strength of southwest flow
just off the surface will support an extended period of low level
wind shear, peaking at 50 kts near 1500 ft agl for a time tonight
and early Thursday.

For DTW...A higher based cloud deck now expected to remain the
primary condition /MVFR to lower VFR/, but with cigs still prevalant
below 5000 ft. A component of fog no longer expected.  Little
variation in conditions then expected through the day Thursday.

//DTW THRESHOLD PROBABILITIES...

* High for ceiling at or below 5000 ft through Thursday.

&&

.DTX WATCHES/WARNINGS/ADVISORIES...
MI...NONE.
Lake Huron...Gale Warning from 3 AM Friday to 7 AM EST Saturday for LHZ441>443-
     462>464.

     Gale Warning from midnight tonight to 10 AM EST Friday for LHZ361.

     Gale Warning from midnight tonight to 7 AM EST Saturday for LHZ362-
     363.

Lake St Clair...NONE.
Michigan waters of Lake Erie...NONE.
&&

DISCUSSION...SF
MARINE.......BT
HYDROLOGY....BT
AVIATION.....MR

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

Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
326 PM EST Wed Jan 10 2018

MIZ047>049-053>055-060>063-068>070-075-076-082-083-112030-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
326 PM EST Wed Jan 10 2018

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...Thursday through Tuesday

A strong cold front tracking through the area late Thursday night
into Friday morning will cause rain to change to snow before ending
early Friday afternoon, with a couple inches of accumulation
possible. In addition, as the rain to snow changeover occurs, a
brief period of sleet and freezing rain is not out of the question.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-112030-
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-
326 PM EST Wed Jan 10 2018

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...Thursday through Tuesday

A gale watch is in effect Thursay night through Friday night. Please
refer to the 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.

SC