437 
WHUS76 KEKA 152121
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
221 PM PDT Thu Mar 15 2018

PZZ470-475-160530-
/O.NEW.KEKA.SW.Y.0001.180316T0400Z-180316T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
221 PM PDT Thu Mar 15 2018

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT FROM 9 PM
THIS EVENING TO 3 PM PDT FRIDAY...

The National Weather Service in Eureka has issued a Small Craft
Advisory for hazardous seas, which is in effect from 9 PM this
evening to 3 PM PDT Friday. 

* WAVES/SEAS...Westerly building to 10 feet at around 11 seconds
  this evening, and continuing through Friday morning. Westerly
  winds of 10 to 15 kt with higher gusts.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$