Marine Interpretation Message
Issued by NWS

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000
AGPN40 KWNM 251518
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
718 AM PST THU DEC 25 2014

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

STRONG HIGH PRES CURRENTLY W OF THE NRN PZ6 WATERS IS COMBINING
WITH INLAND LOW PRES TO PRODUCE N TO NW WINDS UP TO 35 KT ACROSS
PORTIONS OF THE PZ6 WATERS. THESE GALES ARE STILL EXPECTED TO
CONTINUE INTO TONIGHT BEFORE WEAKENING ON FRI. BY FRI NIGHT MAINLY
LIGHT WINDS ARE EXPECTED ACROSS MOST OF THE OFFSHORE WATERS. LOW
PRES WILL THEN DROP SE ACROSS VANCOUVER ISLAND SAT WITH MINIMAL
GALES DEVELOPING ACROSS THE WASHINGTON OFFSHORE WATERS. THE GALES
WILL THEN CONTINUE INTO SUN. A LOW PRES TROF WILL THEN DEVELOP
ALONG THE W COAST OF THE U.S. BY MON WITH WINDS INCREASING TO NEAR
GALE FORCE ACROSS SRN PORTIONS OF THE PZ5 AND NRN PORTIONS OF THE
PZ6 WATERS BY MON NIGHT. CURRENT WARNINGS LOOK REASONABLE AND FEW
CHANGES SHOULD BE NEEDED ON THE NEXT OFFSHORE FORECAST.

THE WAVEWATCH LOOKS REASONABLE WITH THE SEAS AND WILL BE FOLLOWED
FAIRLY CLOSELY DURING THE FORECAST PERIOD.

EXTRATROPICAL STORM SURGE GUIDANCE...N/A.

-----------------------------------------------------------------
PREVIOUS DISCUSSION... COMPLMNTS OF THE SEASON...THE IR SAT IMG
STILL SHOWS A LINE OF CONVCTV CLDS ACRS THE SRN WTRS THAT ARE
ASCCTD WITH A FRNT THERE BUT NO LIGHTNG. THE RADAR ALSO HAS NO
INDC OF TSTMS OVR THE REGION. AT 0600Z HGH PRES 1036 MB NR 40N140W
HAS A STRNG RIDGE ACRS THE REGION. INLAND LOW PRES NR OR/NV/CA
AREA XTNDS A CLD FRNT ACRS CA INTO THE FAR SRN WTRS. THE PRES
GRDNT IS FAIRLY TIGHT OVR THE REGION AND MAX OBS WINDS ARE 35 KT
OVR THE ERN PARTS OF THE CNTRL WTRS. BUOY 46002 W OREGON HAS WINDS
TO 25 KT AT 06Z. THE LATST R-SCAT PASS AT 0540Z HAS HGR WINDS OVR
THE ERN PARTS FO THR CNTRL WTRS.

THE GLBL MDLS HV CONTINUED TO INITIALIZWE WELL AND SEE NO NEED TO
DEVIATE FROM THE PREVIOUS FCST AND SO WILL STAY WITH GFS. IN THE
SHORT TERM THE HGH PRES WILL SHIFT E BUT WILL STILL REMAIN TO THE
W OF THE WTRS. THE PRES GRDNT WILL REMAIN TIGHT. THE HGH WILL
WEAKEN AND ALLOW THE WINDS TO DIMINISH TO BELOW GALE FORCE AND
WILL REMAIN THAT WAY IN THE XTNDD PRD.

.SEAS...THE HGST SEAS ARE CONFINRD TO THE ERN PARTS OF THE NRN
REGION WITH PEAKS AT 18 FT.

EXTRATROPICAL STORM SURGE GUIDANCE...N/A.


.WARNINGS...PRELIMINARY.

.PZ5 WASHINGTON/OREGON WATERS...
.PZZ800...INNER WATERS FROM CAPE FLATTERY TO CAPE SHOALWATER...
     GALE POSSIBLE SAT NIGHT.

.PZ6 CALIFORNIA WATERS...
.PZZ820...INNER WATERS FROM POINT ST. GEORGE TO POINT ARENA...
     GALE POSSIBLE MON NIGHT.
.PZZ825...INNER WATERS FROM POINT ARENA TO PIGEON POINT...
     GALE EARLY TODAY INTO TONIGHT.
.PZZ830...INNER WATERS FROM PIGEON POINT TO POINT PIEDRAS BLANCAS...
     GALE EARLY TODAY INTO TONIGHT.
.PZZ835...INNER WATERS FROM POINT PIEDRAS BLANCAS TO SANTA CRUZ ISLAND, CA...
     GALE EARLY TODAY.
.PZZ840...INNER WATERS FROM SANTA CRUZ ISLAND, CA TO SAN CLEMENTE ISLAND, CA...
     GALE EARLY TODAY.

$$

.FORECASTER NOLT/MUSONDA. OCEAN PREDICTION CENTER.



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