Marine Interpretation Message
Issued by NWS

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000
AGPN40 KWNM 300919
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
219 AM PDT TUE SEP 30 2014

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

LATEST SCAT PASS FROM 05Z INDICATES MAINLY NW WINDS 10-20 KT
ACROSS ENTIRE OFFSHORE WATERS...ALTHOUGH LARGE SWATH OF MISSING
DATA OVR MUCH OF CA WATERS. LARGE SWATH OF 25-30 KT WINDS ARE
OCCURING OVR GLFAK W OF 140W IN BROAD NW FLOW. SEAS IN THAR AREA
ARE ALSO RUNNING A FEW FT HIGHER THATN WW3. RECENT OBS SHOW WAVE
HGTS GENERALLY 5-9 FT OVER WATERS. THE OVERALL PATTERN HASNT
CHANGED MUCH DURING THE PAST SEVERAL DAYS...AND THE FORECAST FROM
ALL THE MODELS ARE PRETTY CONSISTANT AND IN GOOD AGREEMENT
THROUGHOUT THE PERIOD. THE PROBLEM OF THE DAY WILL OCCUR ALONG THE CENTRAL
AND NRN CA CST OVER THE NEXT DAY OR SO AS THE GRADIENT IS EXPECTED
TO TIGHTEN AND PRODUCE MARGINALLY GALE CONDITIONS ACROSS PTNS OF
THE INNER CA OFFSHORE WATERS. WHEN POP THE GRIDS WILL USE THE 10M
GFS THROUGHOUT THE PERIOD...THE EXCEPTION BEING OVR THREE OF THE
INNER CA OFFSHORE WATERS WHERE THE GRADIENT WILL BE THE STRONGEST.
ACROSS THAT REGION I WILL USE A 50/50 BLEND OF THE 10M GFS AND 30M
GFS...IN ORDER TO BUMP UP THE WINDS A BIT. WILL ALSO FURTHER
INCREASE WINDS SLIGHTLY IN ORDER TO REACH GALE OVER THAT AREA. THE
WAVE OUTPUT FROM THE WW3 GENERALLY LOOKS PRETTY GOOD THROUGHOUT
AND LITTLE ADJUSTMENTS ARE NEEDED.

EXTRATROPICAL STORM SURGE GUIDANCE...N/A.

.WARNINGS...PRELIMINARY.

.PZ5 WASHINGTON/OREGON WATERS...
     NONE.

.PZ6 CALIFORNIA WATERS...
.PZZ820...INNER WATERS FROM POINT ST. GEORGE TO POINT ARENA...
     GALE TONIGHT INTO WED.
.PZZ825...INNER WATERS FROM POINT ARENA TO PIGEON POINT...
     GALE TONIGHT INTO WED.
.PZZ830...INNER WATERS FROM PIGEON POINT TO POINT PIEDRAS BLANCAS...
     GALE TONIGHT.

$$

.FORECASTER SHAW. OCEAN PREDICTION CENTER.


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