229  
WHUS73 KDTX 241356  
MWWDTX  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
956 AM EDT SUN JUN 24 2018  
   
..ELEVATED WAVES TODAY
 
 
.BROAD AND DIFFUSE LOW PRESSURE WILL CONTINUE TO DEPART TO THE EAST  
OF THE REGION TODAY AS HIGH PRESSURE BUILDS IN ITS WAKE. A  
TIGHTENING PRESSURE GRADIENT WILL LEAD TO MODERATE NORTHEASTERLY  
FLOW ACROSS MUCH OF THE LOCAL WATERS, AND ESPECIALLY ACROSS CENTRAL  
AND SOUTHERN LAKE HURON INCLUDING SAGINAW BAY. GUSTS WILL APPROACH  
25 KNOTS AT TIMES TODAY ACROSS THE LAKE HURON NEARSHORE WATERS  
LEADING TO HAZARDOUS CONDITIONS FOR SMALL CRAFT. SCATTERED SHOWERS  
WILL CONTINUE TO BE POSSIBLE FOR MUCH OF TODAY AS LOW-LEVEL MOISTURE  
LINGERS. DRIER WEATHER WILL MOVE IN ON MONDAY WITH SLIGHTLY  
DIMINISHED NORTHEASTERLY FLOW BELOW 20 KNOTS AS THE HIGH PRESSURE  
CRESTS OVER THE REGION. WINDS WILL VEER SOUTHEASTERLY TUESDAY AS A  
LOW PRESSURE SYSTEM AND ATTENDANT WARM FRONT APPROACH THE REGION  
FROM THE UPPER MISSISSIPPI RIVER VALLEY. THIS SYSTEM WILL BRING  
INCREASING CHANCES FOR SHOWERS AND THUNDERSTORMS FOR THE MIDWEEK  
PERIOD.  
 
LHZ421-422-242000-  
/O.EXT.KDTX.SC.Y.0041.180624T1400Z-180624T2000Z/  
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-  
956 AM EDT SUN JUN 24 2018  
 
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT THIS  
AFTERNOON...  
 
THE SMALL CRAFT ADVISORY IS NOW IN EFFECT UNTIL 4 PM EDT THIS  
AFTERNOON.  
 
* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY, EXPECT  
SUSTAINED WINDS UP TO 18 KNOTS FROM THE NORTHEAST WITH GUSTS  
UP TO 20 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 3 PM EDT SUNDAY  
WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EDT SUNDAY.  
 
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>443-250200-  
/O.EXT.KDTX.SC.Y.0041.180624T1800Z-180625T0200Z/  
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-  
PORT SANILAC TO PORT HURON MI-  
956 AM EDT SUN JUN 24 2018  
 
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 2 PM THIS AFTERNOON TO  
10 PM EDT THIS EVENING...  
 
THE SMALL CRAFT ADVISORY IS NOW IN EFFECT FROM 2 PM THIS  
AFTERNOON TO 10 PM EDT THIS EVENING.  
 
* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY, EXPECT  
SUSTAINED WINDS UP TO 16 KNOTS FROM THE NORTH WITH GUSTS UP  
TO 20 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 2 PM EDT SUNDAY  
WITH THE LARGEST WAVES EXPECTED AROUND 9 PM EDT SUNDAY.  
 
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  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab MI Page Main Text Page