509 WHUS73 KDTX 281507 MWWDTX URGENT - MARINE WEATHER MESSAGE NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 1007 AM EST TUE NOV 28 2017 ...ELEVATED WINDS AND WAVES THIS AFTERNOON AND EVENING... .LOW LEVEL SOUTHWEST WINDS ATOP A SHALLOW STABLE LAYER OVER THE LAKES WILL STRENGTHEN DURING THE COURSE OF THE MORNING. THIS STABLE LAYER WILL KEEP THE WINDS NEAR THE LAKE SURFACE BACKED A LITTLE MORE TOWARD THE SOUTH AND WILL SUPPRESS PEAK GUSTS TO AROUND 30 KNOTS OR LESS OVER THE OPEN WATERS OF LAKE HURON. THE WINDS WILL SLOWLY VEER MORE TOWARD THE SOUTH-SOUTHWEST DURING THE COURSE OF THE MORNING WITH THE APPROACH OF A COLD FRONT FROM THE NORTHWEST. THIS WILL SUPPORT BUILDING WAVES ACROSS SAGINAW BAY, THEREBY LEADING TO HAZARDOUS CONDITIONS FOR SMALL CRAFT. THE COLD FRONT WILL ADVANCE ACROSS LAKE HURON THIS AFTERNOON AND EVENING BEFORE TRACKING ACROSS LAKE ERIE OVERNIGHT. THE PASSAGE OF THE FRONT WILL BE MARKED BY A GRADUAL VEERING OF THE WINDS TO THE NORTHWEST OVERNIGHT INTO WEDNESDAY MORNING. DEEPENING OVER-LAKE MIXING DEPTHS WILL OCCUR OVERNIGHT TONIGHT INTO WEDNESDAY MORNING AS POST FRONTAL COLD AIR ADVECTION OCCURS. THE GRADIENT WINDS WITHIN THE NORTHWEST FLOW WILL SUPPORT AN UPTICK IN WIND SPEEDS OVERNIGHT, FOLLOWING A WEAKENING IN WIND SPEEDS WITH FROPA THIS AFTERNOON. THERE IS A POTENTIAL FOR GUSTS ON THE NORTHERN AND CENTRAL PORTIONS OF LAKE HURON TO REACH OR EXCEED 30 KNOTS LATE TONIGHT/EARLY WED MORNING. THE BREVITY OF ANY GALE FORCE WIND GUSTS SUGGESTS HOLDING OFF ON THE ISSUANCE OF A GALE WARNING. WINDS AND WAVES WILL THEN DECREASE DURING THE DAY WEDNESDAY INTO WEDNESDAY NIGHT AS HIGH PRESSURE EXPANDS ACROSS THE REGION AND RELAXES THE SFC GRADIENT. LCZ460-LEZ444-282100- /O.EXA.KDTX.SC.Y.0086.000000T0000Z-171128T2100Z/ LAKE ST CLAIR- MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI- 1007 AM EST TUE NOV 28 2017 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A SMALL CRAFT ADVISORY WHICH IS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON. * WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT SUSTAINED WINDS UP TO 19 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 27 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 12 PM EST TUESDAY WITH THE LARGEST WAVES EXPECTED AROUND 10 AM EST TUESDAY. 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. && $$ LHZ441>443-282100- /O.CON.KDTX.SC.Y.0086.000000T0000Z-171128T2100Z/ PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI- PORT SANILAC TO PORT HURON MI- 1007 AM EST TUE NOV 28 2017 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... * WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT SUSTAINED WINDS UP TO 22 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 25 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 5 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 7 FEET. * TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 12 PM EST TUESDAY WITH THE LARGEST WAVES EXPECTED AROUND 10 AM EST TUESDAY. REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS. && $$ LHZ421-290000- /O.CON.KDTX.SC.Y.0086.000000T0000Z-171129T0000Z/ OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER SAGINAW BAY- 1007 AM EST TUE NOV 28 2017 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT SUSTAINED WINDS UP TO 23 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 27 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 10 AM EST TUESDAY WITH THE LARGEST WAVES EXPECTED AROUND 12 PM EST TUESDAY. 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. && $$ LHZ422-290000- /O.CON.KDTX.SC.Y.0086.000000T0000Z-171129T0000Z/ INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI- 1007 AM EST TUE NOV 28 2017 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT SUSTAINED WINDS UP TO 22 KNOTS FROM THE SOUTHWEST WITH GUSTS UP TO 26 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 4 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 5 FEET. * TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 11 AM EST TUESDAY WITH THE LARGEST WAVES EXPECTED AROUND 10 AM EST TUESDAY. REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS. && $$ CB