Marine Interpretation Message
Issued by NWS

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000
AGPN40 KWNM 040343
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
843 PM PDT MON AUG 3 2015

.FORECAST DISCUSSION: MAJOR FEATURES/WINDS/SEAS/SIGNIFICANT
.WEATHER FOR THE NORTH PACIFIC N OF 30N AND E OF 150W.

BROAD AREA OF HIGH PRES W OF THE WA/OR OFFSHR WTRS WL BE BUILDING
EWD OVR THE WTRS TNGT THRU THU NGT...WHILE GRADUALLY SHIFTING SWD
TO THE W OF THE OR/NRN CA WTRS. STGST WINDS THIS EVENING ARE ALG
THE NERN AREAS OF THE WA WTRS...AND ACRS THE SRN CA WTRS OVR THE
ERN AREAS WHERE WINDS WERE NW TO 25 KT. THESE STGR WINDS WL
PERSIST INTO EARLY TUE OVR THESE AREAS WITH WINDS INCRSG TO 25 KT
ALG THE SERN AREAS OF OR INTO NRN CA TUE AS TROF BEGINS TO DVLP
ALG THE COAST. MDL GUID LOOKS SMLR WITH TRENDS AND THERE ARE NO
CHANGES PLANNED FOR THE GRIDS THIS EVENING. WL USE THE PREV GRIDS
WHICH LOOK RSNBL AND WL REEVALUATE WHEN 00Z MDL GUID COMES IN.
GALES EVENTUALLY DVLP LATER THU AND THU NGT OVR THE SERN OR INTO
NRN CA WTRS. MDLS ARE NOT PARTICULARLY STG WITH GALES WITH CONFDC
NOT HIGH ATTM ALTHO HIGH PRES GRADUALLY BECOMS STGR.



-----------------------------------------------------------------
PREVIOUS DISCUSSION...

TYPICAL SUMMER PATTERN EXPECTED TO CONTINUE ACROSS THE E PAC THE
NEXT FEW DAYS. A HIGH PRES RIDGE W OF THE PZ6 WATERS CONTINUES TO
COMBINE WITH INLAND LOW PRES OVER THE SW U.S. TO PRODUCE NW WINDS
UP TO 25 KT OFF THE COAST OF SRN CALIFORNIA. CONDITIONS OFF OF SRN
CALIFORNIA WILL SLOWLY DIMINISH THROUGH TUE AND THEN THE STRONGEST
CONDITIONS WILL SHIFT N TO THE AREA W OF CAPE MENDOCINO BY WED.
STILL EXPECT MINIMAL GALES TO DEVELOP OFF OF SRN OREGON/NRN
CALIFORNIA BY LATE THU AND THU NIGHT. CONDITIONS WILL THEN
DIMINISH BY SAT. MEANWHILE...WEAK LOW PRES ACROSS THE NRN PZ6
WATERS WILL SLOWLY WEAKEN TODAY AND TONIGHT...THEN DISSIPATE TUE.
CURRENT WARNINGS LOOK REASONABLE AND FEW CHANGES SHOULD BE NEEDED
ON THE NEXT OFFSHORE FORECAST.

THE ENP VERSION OF THE NWW3 LOOKS REASONABLE WITH THE SEAS AND
WILL CONTINUE TO BE FOLLOWED FAIRLY CLOSELY DURING THE FORECAST
PERIOD.

EXTRATROPICAL STORM SURGE GUIDANCE...N/A.




.WARNINGS...PRELIMINARY.

.PZ5 WASHINGTON/OREGON WATERS...
.PZZ815...INNER WATERS FROM FLORENCE OR TO POINT ST. GEORGE...
     GALE POSSIBLE THU INTO THU NIGHT.

.PZ6 CALIFORNIA WATERS...
.PZZ820...INNER WATERS FROM POINT ST. GEORGE TO POINT ARENA...
     GALE POSSIBLE THU INTO THU NIGHT.

$$

.FORECASTER ROWLAND/NOLT. OCEAN PREDICTION CENTER.



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