National Weather Service Portland OR
8:14 PM Thursday October 19.
.SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR IN EFFECT THROUGH FRIDAY AFTERNOON, IN THE MAIN CHANNEL, COMBINED SEAS 19 FEET TONIGHT SUBSIDING TO 15 FEET FRIDAY. HOWEVER, SEAS WILL TEMPORARILY BUILD TO 20 FEET WITH DURING THE EBB AROUND with breakers during the strong ebb around 6:30 pm friday evening.