636  
WHUS73 KDTX 281957  
MWWDTX  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
357 PM EDT WED JUN 28 2017  
   
..GUSTY SOUTHWEST WINDS DEVELOPING TONIGHT AND THURSDAY OVER
 
 
.LOW PRESSURE DEVELOPING OVER THE WESTERN GREAT LAKES WILL CONTINUE  
TO SUPPORT INCREASING SOUTHERLY WIND OVER MARINE AREAS TONIGHT  
THROUGH THURSDAY. MODERATE SPEED WILL BE MORE COMMON OVER SAGINAW  
BAY AND OVER WESTERN LAKE ERIE WHERE CHANNELING AND ALONGSHORE FLOW  
RESPECTIVELY WILL ENHANCE GUSTS. SMALL CRAFT ADVISORIES ARE IN  
EFFECT OVERNIGHT THROUGH THURSDAY 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 THURSDAY NIGHT INTO FRIDAY. THE WARMER AIR WILL  
FUEL INCREASED THUNDERSTORM ACTIVITY AS LOW PRESSURE OVER THE  
NORTHERN GREAT LAKES THURSDAY DRAGS A DIFFUSE SURFACE TROUGH THROUGH  
THE REGION FRIDAY INTO SATURDAY.  
 
LHZ441-290830-  
/O.EXB.KDTX.SC.Y.0050.170629T0400Z-170630T0200Z/  
PORT AUSTIN TO HARBOR BEACH MI-  
357 PM EDT WED JUN 28 2017  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 PM  
EDT THURSDAY...  
 
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A  
SMALL CRAFT ADVISORY WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO  
10 PM EDT THURSDAY.  
 
* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT  
SUSTAINED WINDS UP TO 22 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 5 FEET.  
 
* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 8 AM EDT THURSDAY  
WITH THE LARGEST WAVES EXPECTED AROUND 10 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.  
 

 
 

 
 
LEZ444-290830-  
/O.EXB.KDTX.SC.Y.0050.170629T0400Z-170629T2000Z/  
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-  
357 PM EDT WED JUN 28 2017  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM  
EDT THURSDAY...  
 
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A  
SMALL CRAFT ADVISORY WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO  
4 PM EDT THURSDAY.  
 
* 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 3  
FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 5 FEET.  
 
* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 7 AM EDT THURSDAY  
WITH THE LARGEST WAVES EXPECTED AROUND 10 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.  
 

 
 

 
 
LHZ421-422-290830-  
/O.EXT.KDTX.SC.Y.0050.170629T0400Z-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-  
357 PM EDT WED JUN 28 2017  
 
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO  
10 PM EDT THURSDAY...  
 
THE SMALL CRAFT ADVISORY IS NOW IN EFFECT FROM MIDNIGHT TONIGHT  
TO 10 PM EDT THURSDAY.  
 
* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY...EXPECT  
SUSTAINED WINDS UP TO 23 KNOTS FROM THE SOUTHWEST WITH GUSTS UP  
TO 30 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 5 AM EDT THURSDAY  
WITH THE LARGEST WAVES EXPECTED AROUND 8 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.  
 

 
 

 
 
BT  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab MI Page Main Text Page