Marine Interpretation Message
Issued by NWS

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000
AGPN40 KWNM 180836
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
136 AM PDT THU SEP 18 2014

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

THE LTST IR SAT IMG HAS CONV CLDS OVR THE NRN WTRS BUT LIGHTNG IS
NOW ONLY OVR THE ERN PARTS OF NRN CAL WTRS. THE RADAR SHOW TSTMS
CELLS OVR THE ERN PARTS OF THE NRN WTRS THINNING OUT. AT 18/06Z
LOW PRES 1000 MB OVR THE NRN CA WTRS HAS A FRNT STRCHNG E THEN
CURVING SW TO PASS OVR THE SRN WTRS. A WKNG FRNT LIES JUST W OF
THE NRN WTRS. THE PRES GRDNT IS NOT ALL THAT TIGHT AND THE MAX OBS
WINDS ARE 25 KT OVR THE CNTRL REGION. THE LATST ASCAT PASS AT
0430Z MISSED MOST OF THE REGION BUT HAD INDC WINDS TO 30 KT OVR
THE CNTRL REGION.

THE ENERGY CURRTLY FEEDING THE LOW PRES OVR THE REGION WILL MOVE
INLAND AND THAT WILL RESULT IN THE WKNG OF THE LOW PRES OVR THE
REGION. THERE IS ANOTHER BAND OF ENRGY UPSTREAM BUT THERE IS ALSO
UPPER LEVEL RIDGING FROM THE S AND THAT WILL PUSH THE ENERGY NE
AND ONLY GET TO THE NRN WTRS. ITS WRATH SHOULD BE FELT OVR THE NRN
WTRS NEXT WEEK AFTER THE FCST PRD.

THE GLBL MDLS ARE STILL IN GUD AGRMNT AND SEE NO NEED TO DEVIATE
FROM THE GFS GDNC. IN THE SHORT TERM LOW PRES WILL MOVE SE OVR THE
WTRS BUT WILL WEAKEN AS HGH PRES APPROACHES FRM THE W. NO MJR
CNHGS IN THE XTNDD PRD EITHER AND SO THE PRES GRDNT SHUD REMAIN
WEAK THRU THE FCST PRD AND SO NO WRNGS IN THE FCST.

.SEAS...THE HGHST SEAS ARE 14 FT OVR THE WRN PARTS OF THE CNTRL
CA WTRS. THE LAST JASON PASS OVR THE REGION WAS AT 2204Z AND IT
MISSED THE REGION WITH HGHST SEAS. THE NWW3 MULTI GRID WV MDLS IS
ON PAR WITH THE OBSVD SEAS PATTERN AND HAS BEEN PERFOMING WELL AND
IS QUITE CONSSTNT AND SO WILL STAY WITH IT. THE SEAS WILL BE
SUBSIDING OVR THE CNTRL WTRS TO 4 FT BY SAT BUT SEAS WILL BUILD IN
FROM THE NW TO 12 FT OVR THE NW PARTS BY SAT.

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

.WARNINGS...PRELIMINARY.

.PZ5 WASHINGTON/OREGON WATERS...
     NONE.

.PZ6 CALIFORNIA WATERS...
     NONE.

$$

.FORECASTER MUSONDA. OCEAN PREDICTION CENTER.



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