Marine Weather Message
Issued by NWS Detroit/Pontiac, MI

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000
WHUS73 KDTX 282040
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
340 PM EST WED JAN 28 2015

...GALE FORCE WINDS POSSIBLE THURSDAY NIGHT ON LAKE HURON...

.SOUTH-SOUTHEASTERLY WINDS WILL BE ON THE INCREASE TONIGHT AS LOW
PRESSURE APPROACHES FROM THE WEST. THE RESULTING WARM AIR ADVECTION
WILL INHIBIT THE DEGREE OF MIXING OVER THE LAKES. SO ALTHOUGH MODEL
SOLUTIONS SUGGEST GALE FORCE WINDS DOWN TO 1K FT...THE SHALLOW
STABLE LAYER OVER THE LAKES WILL INHIBIT THE POTENTIAL FOR GALE
FORCE WIND GUSTS TO OCCUR OVER A PERIOD GREATER THAN THREE HOURS.
THIS SUGGESTS THAT A GALE WARNING FOR TONIGHT WILL NOT BE NEEDED.
ALTHOUGH FREQUENT GUSTS TO 30 KNOTS ARE EXPECTED...MAINLY LATE
TONIGHT THROUGH THURS MORNING. WINDS WILL DECREASE THURS AFTERNOON
AS THE SURFACE LOW TRACKS OVERHEAD AND THEN VEER TO THE WEST-
NORTHWEST LATE THURS AS THE LOW HEADS EAST OF LAKE HURON. ARCTIC AIR
WILL THEN INFILTRATE THE REGION WITH THE DEPARTURE OF THE SFC LOW.
THIS WILL BOOST MIXING DEPTHS OVER THE LAKE AND WILL SUPPORT GALE
FORCE WINDS GUSTS THURS NIGHT INTO FRIDAY MORNING AND LAKE HURON
BEFORE THE GRADIENT WEAKENS SUBSTANTIALLY FRI AFTERNOON.

LHZ361-290845-
/O.EXT.KDTX.GL.A.0005.150130T0000Z-150130T1000Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
340 PM EST WED JAN 28 2015

...GALE WATCH NOW IN EFFECT FROM THURSDAY EVENING THROUGH LATE
THURSDAY NIGHT...

THE GALE WATCH IS NOW IN EFFECT FROM THURSDAY EVENING THROUGH
LATE THURSDAY NIGHT.

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS
  UP TO 32 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 42 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 10 PM THURSDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 11 PM THURSDAY.

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.

&&

$$

LHZ362-363-421-441>443-462>464-290845-
/O.CON.KDTX.GL.A.0005.150130T0000Z-150130T1700Z/
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-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-
340 PM EST WED JAN 28 2015

...GALE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH
FRIDAY MORNING...

* WIND AND WAVES: DURING THE GALE WATCH...EXPECT SUSTAINED WINDS
  UP TO 34 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 43 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 1 AM FRIDAY WITH
  THE LARGEST WAVES EXPECTED AROUND 2 AM FRIDAY.

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.

&&

$$

SC


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