Marine Weather Message
Issued by NWS Detroit/Pontiac, MI

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000
WHUS73 KDTX 222048
MWWDTX

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
348 PM EST WED FEB 22 2017

...AREAS OF DENSE FOG TO PERSIST TONIGHT...

.WARM AND MOIST SOUTHWESTERLY FLOW OVER THE COLDER WATERS IS
PRODUCING ARES OF LOW STRATUS AND FOG,  MOSTLY OVER THE NORTHERN
HALF OF LAKE HURON.  LOW PRESSURE WILL SLIDE ACROSS THE STRAITS
REGION LATE TONIGHT BEFORE EXITING NORTHEAST OF LAKE HURON BY
DAYBREAK THURSDAY. THE RESULT WILL BE A VEERING OF THE WINDS TO THE
NORTHWEST, BRINGING DRIER AIR ACROSS THE LAKE AND THEREBY SCOURING
OUT LINGERING FOG.  SOME LIGHT RAIN SHOWERS MAY ACCOMPANY THIS SYSTEM

DEEPENING LOW PRESSURE IS FORECAST TO MOVE FROM IOWA TO NORTHERN
MICHIGAN ON FRIDAY. EASTERLY WINDS WILL INCREASE ACROSS LAKE HURON
IN RESPONSE. THERE IS FAIRLY HIGH PROBABILITY THAT GUSTS ACROSS THE
NORTHERN AND CENTRAL PORTIONS OF THE LAKE WILL REACH 30 KNOTS, WITH
A CHANCE FOR SOME GALE FORCE WIND GUSTS. GUSTY WINDS WILL THEN ENSUE
FRIDAY NIGHT INTO SATURDAY AS THE SYSTEM LIFTS NORTHEAST OF THE
REGION, WITH A BETTER CHANCE FOR GALE FORCE GUSTS WITH A LONGER
DURATION.

LHZ421-422-222200-
/O.EXP.KDTX.MF.Y.0004.000000T0000Z-170222T2100Z/
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-
348 PM EST WED FEB 22 2017

...DENSE FOG ADVISORY WILL EXPIRE AT 4 PM EST THIS AFTERNOON...

THE DENSE FOG ADVISORY WILL EXPIRE AT 4 PM EST THIS AFTERNOON.

$$

LHZ361>363-230915-
/O.CON.KDTX.MF.Y.0004.000000T0000Z-170223T1200Z/
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-
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
348 PM EST WED FEB 22 2017

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THURSDAY...

* EXPECT DENSE FOG WITH VISIBILITIES OF ONE QUARTER OF A MILE OR
  LESS UNTIL 7 AM EST THURSDAY.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE
REDUCED TO LESS THAN ONE MILE. INEXPERIENCED MARINERS, ESPECIALLY
THOSE OPERATING SMALLER VESSELS, SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

MR



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