

779 

AGPN40 KWNM 200852

MIMPAC



MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN

NWS OCEAN PREDICTION CENTER WASHINGTON DC

152 AM PDT SAT AUG 20 2016



.FORECAST DISCUSSION: MAJOR FEATURES/WINDS/SEAS/SIGNIFICANT

.WEATHER FOR THE NORTH PACIFIC N OF 30N AND E OF 150W.



THE ASCAT PASS FROM 0545Z SHOWS A SWATH OF 20-30 KT WINDS ORIENTED

NE-SW FROM VANISL ACROSS ERN PTNS OF THE WA/OR WATERS...REMAINING

W OF THE NRN CA WATERS. E OF 127W THE WINDS BECOME LIGHT AND

VARIABLE. FURTHER S...NEAR PT CONCEPTION THE WINDS BECOME MORE

NWRLY 10-15 KT. THE ALTIMETER PASS FROM 03Z INDICATES SEAS ACROSS

THE CENTRAL CA WATERS 5-7 FT...WITH MAX OBS 11 FT RPT BY BUOY

46002 AT 08Z.



THE OVERALL FCST HASNT CHANGED MUCH OVER THE PAST SEVERAL DAYS AS

THE PATTERN HAS BEEN CONSISTANT AND VERY STABLE. ALL OF THE 00Z

GLOBAL MODELS ARE IN GOOD AGREEMENT WITH ONLY MINOR DIFFERENCES IN

THE WIND SPEED...MAINLY DUE TO THE POSITION OF THE STRONGEST PRS

GRADIENT. A RIDGE AXIS WILL CONTINUE W OF THE WATERS...SHIFTING

W...THEN BUILDING E AGAIN LATER IN THE WEEK TOWARDS THE WA/OR

WATERS. A WEAK LOW PRES TROUGH WILL PERSIST ALONG THE CA CST FOR

MUCH OF THE WEEK. LATER IN THE WEEK AS HIGH PRES BUILDS E TOWARDS

THE WA/OR WATERS WINDS WILL INCREASE ALONG THE NRN CA CST IN THE

REGION OF THE STRONGEST GRADIENT. THE COASTAL ZONES ARE LIKELY TO

EXPERIENCE THE STRONGEST WINDS...ALTHOUGH ATTM I AM NOT EXPECTING

ANY GALE WINDS...ALTHOUGH BRIEF PERIODS OF LOCALIZED WINDS TO 35

KT CANT BE RULED OUT DAYS 3-5 IN THE COASTAL ZONE ALONG EXTREME

NW CA AND SW OREGON CSTS. WILL POP THE WIND GRIDS USING THE 10M

GFS THROUGHOUT THE 7 DAY PERIOD.



SEAS...BOTH THE WAM AND ENP INITIALZIED WELL ACROSS THE REGION AND

BOTH MODELS APPEAR REASONABLE. WILL POP THE WAVE GRIDS USING A

50/50 BLEND OF THE TWO MODELS THROUGH 21Z WED...THEN TRANSITION

TO THE ENP FOR THE REMAINDER OF THE WEEK.



.EXTRATROPICAL STORM SURGE GUIDANCE...N/A.



.WARNINGS...PRELIMINARY.



.PZ5 WASHINGTON/OREGON WATERS...

     NONE.



.PZ6 CALIFORNIA WATERS...

     NONE.



$$



.FORECASTER SHAW. OCEAN PREDICTION CENTER.

