160  
WHUS74 KBRO 230856  
MWWBRO  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE BROWNSVILLE TX  
356 AM CDT TUE OCT 23 2018  
 
...STRONG WINDS AND HIGH SEAS CONTINUE OFFSHORE THE LOWER TEXAS  
COAST THIS MORNING...  
 
.PERSISTENT LOW PRESSURE OVER THE WESTERN GULF OF MEXICO WILL  
INTERACT WITH HIGH PRESSURE OVER INLAND TEXAS TODAY, LEADING TO  
STRONG WINDS AND HIGH SEAS OFFSHORE THE LOWER TEXAS COAST. THE  
ADVERSE MARINE CONDITIONS ARE LIKELY TO PERSIST THROUGH LATE THIS  
WEEK.  
 
GMZ150-155-170-175-231700-  
/O.CON.KBRO.SC.Y.0036.000000T0000Z-181024T0000Z/  
/O.NEW.KBRO.SW.Y.0006.181024T0000Z-181024T1100Z/  
COASTAL WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM-  
COASTAL WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM-  
WATERS FROM PORT MANSFIELD TO THE RIO GRANDE EXTENDING FROM 20 TO  
60 NM-  
WATERS FROM BAFFIN BAY TO PORT MANSFIELD EXTENDING FROM 20 TO  
60 NM-  
356 AM CDT TUE OCT 23 2018  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS  
EVENING...  
...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT FROM 7 PM  
THIS EVENING TO 6 AM CDT WEDNESDAY...  
 
THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A SMALL  
CRAFT ADVISORY FOR HAZARDOUS SEAS, WHICH IS IN EFFECT FROM 7 PM  
THIS EVENING TO 6 AM CDT WEDNESDAY.  
 
* WINDS...GENERALLY NORTH AT 15 TO 25 KNOTS.  
 
* SEAS...5 TO 7 FEET NEARSHORE AND 7 TO 9 FEET OFFSHORE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 20 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.  
 
A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE  
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID  
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING  
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK  
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.  
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.  
 

 
 

 
 
CASTILLO  
 
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