Marine Weather Message
Issued by NWS Detroit/Pontiac, MI

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400
WHUS73 KDTX 240839
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
339 AM EST SAT FEB 24 2018

...GALES ACROSS LAKE HURON TONIGHT AND SUNDAY...

.HIGH PRESSURE WILL DRIFT EASTWARD ACROSS THE CENTRAL GREAT LAKES
TODAY LEADING TO LIGHT FLOW ACROSS THE LOCAL WATERS. STRONG LOW
PRESSURE DEVELOPING OVER THE CENTRAL PLAINS WILL TRACK NORTHEAST
ACROSS THE NORTHERN GREAT LAKES LATE TONIGHT AND INTO SUNDAY AS IT
RAPIDLY DEEPENS. THE FLOW WILL BECOME EAST/SOUTHEASTERLY AHEAD OF
THE LOW PRESSURE TONIGHT AND RAPIDLY INCREASE TO GALES OVER LAKE
HURON INTO SUNDAY AS THE FLOW SHIFTS SOUTHWEST BEHIND THE DEPARTING
LOW PRESSURE SYSTEM. GALES WILL DIMINISH SUNDAY NIGHT AND INTO
MONDAY AS HIGH PRESSURE RIDGES INTO THE REGION FROM THE SOUTHWEST.

LHZ361-362-242130-
/O.CON.KDTX.GL.W.0010.180225T0300Z-180226T0000Z/
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-
339 AM EST SAT FEB 24 2018

...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 7 PM
EST SUNDAY...

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 36 KNOTS FROM THE EAST 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 EST SUNDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 6 AM 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.

&&

$$

LHZ421-422-441>443-242130-
/O.CON.KDTX.GL.W.0010.180225T1200Z-180226T0000Z/
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-
339 AM EST SAT FEB 24 2018

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 34 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 44
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 7 FEET
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 10 FEET.

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

&&

$$

LHZ363-462>464-242130-
/O.CON.KDTX.GL.W.0010.180225T1200Z-180226T0000Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-
339 AM EST SAT FEB 24 2018

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

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 34 KNOTS FROM THE SOUTHWEST 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 10 AM EST SUNDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 1 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.

&&

$$

MR



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