800  
WHUS76 KEKA 190242  
MWWEKA  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE EUREKA CA  
642 PM PST THU DEC 18 2025  
 
PZZ450-191045-  
/O.EXP.KEKA.SC.Y.0136.000000T0000Z-251219T0300Z/  
/O.CON.KEKA.GL.W.0057.251219T0300Z-251219T1700Z/  
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-  
642 PM PST THU DEC 18 2025  
   
..GALE WARNING REMAINS IN EFFECT UNTIL 9 AM PST FRIDAY
 
   
..SMALL CRAFT ADVISORY WILL EXPIRE AT 7 PM PST THIS EVENING
 
 
* WHAT...SOUTH WINDS 20 TO 30 KT WITH GUSTS UP TO 40 KT AND SEAS  
8 TO 12 FEET EXPECTED.  
 
* WHERE...PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM.  
 
* WHEN...UNTIL 9 AM PST FRIDAY.  
 
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS SEAS WHICH COULD  
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.  
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR SEVERE CONDITIONS.  
 

 
 

 
 
PZZ470-191045-  
/O.CON.KEKA.GL.W.0057.000000T0000Z-251219T1700Z/  
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-  
642 PM PST THU DEC 18 2025  
   
..GALE WARNING REMAINS IN EFFECT UNTIL 9 AM PST FRIDAY
 
 
* WHAT...SOUTHWEST WINDS 20 TO 30 KT WITH GUSTS UP TO 45 KT AND  
SEAS 10 TO 14 FEET.  
 
* WHERE...PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM.  
 
* WHEN...UNTIL 9 AM PST FRIDAY.  
 
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS SEAS WHICH COULD  
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.  
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR SEVERE CONDITIONS.  
 

 
 

 
 
PZZ475-191045-  
/O.CON.KEKA.SC.Y.0138.251219T0600Z-251219T1700Z/  
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-  
642 PM PST THU DEC 18 2025  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING  
TO 9 AM PST FRIDAY...  
 
* WHAT...SOUTH WINDS 15 TO 25 KT WITH GUSTS UP TO 35 KT AND SEAS  
8 TO 10 FEET EXPECTED.  
 
* WHERE...CAPE MENDOCINO TO PT ARENA 10 TO 60 NM.  
 
* WHEN...FROM 10 PM THIS EVENING TO 9 AM PST FRIDAY.  
 
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER  
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.  
 

 
 

 
 
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