National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
WHUS73 KDTX 191944
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
344 PM EDT THU APR 19 2018

...NORTHWEST WINDS SLOWLY DECREASE TONIGHT...

NORTHWEST WINDS GUSTING TO 25 KNOTS OR SLIGHTLY GREATER OVER MUCH
OF LAKE HURON THIS AFTERNOON WILL SLOWLY DECREASE TONIGHT AS HIGH
PRESSURE BUILDS INTO THE CENTRAL GREAT LAKES TOMORROW, LEADING TO
LIGHT AND VARIABLE WINDS OVER THE WEEKEND. SMALL CRAFT ADVISORIES
CONTINUE FOR THE SOUTHERN LAKE HURON WAVES THROUGH FRIDAY
MORNING, AS WAVES DO NOT FALL BELOW 4 FEET UNTIL FRIDAY AFTERNOON.

LIGHT SOUTHERLY WINDS EARLY NEXT WEEK AS HIGH PRESSURE SLIDES OFF
THE EAST COAST.

LHZ422-192045-
/O.EXP.KDTX.SC.Y.0021.000000T0000Z-180419T2000Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
344 PM EDT THU APR 19 2018

...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 PM EDT THIS AFTERNOON...

THE SMALL CRAFT ADVISORY WILL EXPIRE AT 4 PM EDT THIS AFTERNOON.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY, EXPECT
  SUSTAINED WINDS UP TO 13 KNOTS FROM THE NORTH WITH GUSTS UP
  TO 19 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 EDT
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EDT
  THURSDAY.

$$

LHZ421-441>443-200745-
/O.CON.KDTX.SC.Y.0021.000000T0000Z-180420T2000Z/
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-
344 PM EDT THU APR 19 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT FRIDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY, EXPECT
  SUSTAINED WINDS UP TO 22 KNOTS FROM THE NORTH WITH GUSTS UP
  TO 28 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 PM EDT
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EDT
  THURSDAY.

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.

&&

$$

JD