658  
WHGM70 PGUM 290636  
MWWGUM  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE TIYAN GU  
436 PM CHST WED MAR 29 2017  
 
PMZ151>154-292100-  
/O.CAN.PGUM.SC.Y.0006.000000T0000Z-170330T1200Z/  
/O.CON.PGUM.SC.Y.0007.000000T0000Z-170330T1200Z/  
GUAM COASTAL WATERS-ROTA COASTAL WATERS-TINIAN COASTAL WATERS-  
SAIPAN COASTAL WATERS-  
436 PM CHST WED MAR 29 2017  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CHST  
THURSDAY...  
 
A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CHST  
THURSDAY.  
 
EAST WINDS OF 20 TO 25 KNOTS WILL PERSIST THROUGH THURSDAY  
NIGHT. IN ADDITION...SEAS WILL INCREASE TO 7 TO 9 FEET...AND  
COULD REACH 10 FEET AT TIMES OVER THE MARIANAS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS  
ARE EXPECTED TO PRODUCE WAVE CONDITIONS HAZARDOUS TO SMALL CRAFT.  
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER  
VESSELS...SHOULD AVOID SAILING IN THESE CONDITIONS.  
 
MARINERS SHOULD USE EXTRA CAUTION WHEN ENTERING OR LEAVING HARBOR  
CHANNELS, AND AVOID SHOALING AREAS. THESE LONG PERIOD SWELL CAN  
SHARPEN INTO LARGE BREAKING WAVES AND EASILY CAPSIZE EVEN LARGER  
VESSELS.  
 

 
 

 
 
ZIOBRO  
 
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