

643 

AGPN40 KWNM 220323

MIMPAC



MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN

NWS OCEAN PREDICTION CENTER WASHINGTON DC

823 PM PDT SUN AUG 21 2016



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

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



NO CHANGES IN STORE FOR THE UPCOMING EVE UPDATE. VERY SIMPLE AND

FAMILIAR PATTERN TO PERSIST TONIGHT AND NEXT SEVERAL DAYS AS EPAC

HIGH PRES COMBINES WITH COASTAL LOW PRES TROF TO CREATE PERSISTENT

N TO NW FLOW OVER MOST OF THE OPC AOR. NO WIND WARNINGS WILL BE

NEEDED AND NONE ARE EXPECTED IN THE SOON TO BE ARRIVING 00Z DATA.

STRONG WINDS - AS USUAL - EXPECTED TO BE CONFINED TO WITHIN THE

COASTAL ZNS OR WITHIN 60 NM OF LAND. 



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PREVIOUS DISCUSSION...



AT 18Z A COLD FRONT WAS OVER THE SE WA/NRN OR WATERS W/A HIGH PRES

RIDGE OVER THE REST OF THE OPC OFFSHORE WATERS. 1920Z ASCAT HIRES

PASS REVEALED 20-25 KT WINDS OVER THE WA/OR WATERS W/5-10 KT OVER

THE CENTRAL CA WATERS. W/12Z GUIDANCE IN GOOD

AGREEMENT...CONTINUING THE CONSISTENCY SEEN IN THE 00Z RUNS

FAVORED POPULATING GRIDS W/12Z GFS 10M WINDS THROUGH THE PERIOD.

HIGH PRES ANCHORED W OF THE OFFSHORE WATERS WILL EXTEND ITS RIDGE

OVER THE REGION THROUGH THE PERIOD W/A LOW PRES TROUGH

STRENGTHENING OVER CA WED NIGHT INTO THURS LEADING TO AN INCREASE

IN WINDS OVER THE WA/OR/NRN CA WATERS WED NIGHT THROUGH FRI NIGHT.



.SEAS...FAVORED 50/50 BLEND OF 12Z NWW3/ECMWF WAM OVER 5 DAY

PERIOD.



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







.WARNINGS...PRELIMINARY.



.PZ5 WASHINGTON/OREGON WATERS...

     NONE.



.PZ6 CALIFORNIA WATERS...

     NONE.



$$



.FORECASTER COLLINS/HOLLEY. OCEAN PREDICTION CENTER.

