Marine Weather Message
Issued by NWS Detroit/Pontiac, MI

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
000
WHUS73 KDTX 131501
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1001 AM EST WED DEC 13 2017

...WIND DECREASING TODAY...

.WINDS AND WAVES WILL SUBSIDE STEADILY EARLY THIS MORNING AND HAVE
ALLOWED GALE WARNING TO EXPIRE. A STORM SYSTEM WILL THEN BRING
MODERATE SNOW FROM ACROSS SOUTHERN LAKE HURON SOUTHWARD TODAY. AS
THIS LOW PRESSURE PASSES TO THE SOUTH, WINDS WILL INCREASE FROM THE
NORTHEAST TONIGHT AND THEN BACK TO NORTHWEST ON THURSDAY. WHILE GALE
CONDITIONS ARE NOT ANTICIPATED, THE STRONG ONSHORE FLOW WILL LEAD TO
BUILDING WAVES AND THE NEED FOR SMALL CRAFT ADVISORIES OVER THE NEAR
SHORE WATERS TONIGHT INTO THURSDAY BEFORE WINDS BACK TO NORTHWEST
AND TAKES THE HIGHER WAVES EAST AWAY FROM THE MICHIGAN SHORE. COLD
AIR WILL HELP PRODUCE BANDS OF LAKE EFFECT SNOW ON LAKE HURON
THURSDAY. ANOTHER SYSTEM WILL HELP BACK THE FLOW TO THE SOUTHWEST
FOR FRIDAY WHILE BRINGING MORE SNOW ACTIVITY TO THE LAKES. AT THIS
TIME, WINDS ARE NOT EXPECTED TO REACH GALES AGAIN AT LEAST THROUGH
THE UPCOMING WEEKEND.

LHZ421-441>443-140315-
/O.CON.KDTX.SC.Y.0096.000000T0000Z-171214T1500Z/
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-
1001 AM EST WED DEC 13 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
THURSDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 24 KNOTS FROM THE NORTHEAST WITH GUSTS
  UP TO 30 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL
  BE 6 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 8 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 11 PM EST
  WEDNESDAY WITH THE LARGEST WAVES EXPECTED AROUND 5 AM EST
  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.

&&

$$

LHZ422-140315-
/O.CON.KDTX.SC.Y.0096.171214T0000Z-171214T1000Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
1001 AM EST WED DEC 13 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 5 AM EST THURSDAY...

* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT
  SUSTAINED WINDS UP TO 22 KNOTS FROM THE NORTH WITH GUSTS UP
  TO 29 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 12 AM EST
  THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 11 PM EST
  WEDNESDAY.

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.

&&

$$

JVC



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.