Marine Weather Message
Issued by NWS Detroit/Pontiac, MI

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000
WHUS73 KDTX 290809
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
409 AM EDT THU JUN 29 2017

...GUSTY WINDS EXPECTED TODAY OVER THE CENTRAL GREAT LAKES...

.THE REGION WILL REMAIN UNDER A MODERATE SOUTHERLY WIND TODAY, AS LOW
PRESSURE SLOWLY TRACKS ACROSS THE UPPER PENINSULA. THESE SPEED WILL
BE MAGNIFIED OVER SAGINAW BAY AND OVER WESTERN LAKE ERIE, WHERE
CHANNELING AND ALONGSHORE FLOW RESPECTIVELY WILL ENHANCE GUSTS.
SMALL CRAFT ADVISORIES ARE IN EFFECT THROUGH THIS EVENING FOR THESE
AREAS AS WELL AS FOR PORT AUSTIN TO HARBOR BEACH AROUND THE TIP OF
THE THUMB. THIS WIND PATTERN WILL BRING IN WARMER AND MORE UNSTABLE
AIR INTO THE REGION BEFORE EASING TONIGHT INTO FRIDAY. THE WARMER
AIR WILL FUEL INCREASED THUNDERSTORM ACTIVITY AS LOW PRESSURE OVER
THE NORTHERN GREAT LAKES DRAGS A DIFFUSE SURFACE TROUGH THROUGH THE
REGION FRIDAY INTO SATURDAY.

LHZ442-443-292030-
/O.EXA.KDTX.SC.Y.0050.000000T0000Z-170630T0200Z/
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-
409 AM EDT THU JUN 29 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY WHICH IS IN EFFECT UNTIL 10 PM EDT THIS
EVENING.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 19 KNOTS FROM THE SOUTH WITH GUSTS UP TO
  30 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 4 AM EDT
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 6 AM 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.

&&

$$

LCZ460-292030-
/O.EXA.KDTX.SC.Y.0050.000000T0000Z-170630T0200Z/
LAKE ST CLAIR-
409 AM EDT THU JUN 29 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
SMALL CRAFT ADVISORY WHICH IS IN EFFECT UNTIL 10 PM EDT THIS
EVENING.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 19 KNOTS FROM THE SOUTHWEST WITH GUSTS UP
  TO 30 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 2
  FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 2 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 11 AM EDT
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 7 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.

&&

$$

LEZ444-292030-
/O.EXT.KDTX.SC.Y.0050.000000T0000Z-170630T0200Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
409 AM EDT THU JUN 29 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT UNTIL 10 PM EDT THIS
EVENING.

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 19 KNOTS FROM THE SOUTHWEST WITH GUSTS
  UP TO 31 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 4 AM EDT
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 7 AM 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.

&&

$$

LHZ421-422-441-292030-
/O.CON.KDTX.SC.Y.0050.000000T0000Z-170630T0200Z/
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-
409 AM EDT THU JUN 29 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 23 KNOTS FROM THE SOUTH WITH GUSTS UP
  TO 32 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 5
  FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 7 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 4 AM EDT
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 9 AM 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.

&&

$$

HLO



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