Marine Interpretation Message
Issued by NWS

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000
AGPN40 KWNM 010836
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1236 AM PST SUN FEB 1 2015

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

THE 06Z SFC ANALYSIS INDICATED A COLD FRONT OVER THE FAR W
PORTIONS OF THE WA/OR OFFSHORE WATERS EXTENDING SW. HIGH PRES
RIDGE N AND CENTRAL CA WATERS AND FAR NW S CA WATERS. ASCAT AND
RAPID SCAT PASSES FROM LATE SAT EVENING INDICATED WINDS 20 KT OR
LESS OVER THE OFFSHORE AND COASTAL WATERS.

THE 00Z MODELS CONTINUE TO BE IN VERY GOOD AGREEMENT DURING THE
SHORT TERM PERIOD...ROUGHLY FROM TODAY THROUGH 12Z WED. FROM 12Z
WED AND BEYOND...THERE CONTINUE TO BE DIFFERENCES WITH THE
EVOLUTION OF SEVERAL STRONG LOWS FCST TO PASS W OF THE OFFSHORE
WATERS. FOR TODAY THROUGH TUE NIGHT...THE COLD FRONT MENTIONED
ABOVE WILL MOVE ACROSS THE WA/OR/N CA WATERS TODAY WHILE
WEAKENING. ANOTHER WEAK COLD FRONT WILL MOVE ACROSS THE AREA LATER
TONIGHT AND MON. WINDS WILL REMAIN WELL BELOW GALE WITH BOTH OF
THESE FRONTS...WITH THE STRONGEST WINDS EXPECTED OVER THE NW WA
WATERS LATER TONIGHT. LOOKING AHEAD TO 12Z WED AND BEYOND...THE
MODELS DO SEEM TO BE COMING CLOSER TOGETHER COMPARED TO THE PAST
FEW RUNS...ALTHOUGH THERE CONTINUE TO BE SIGNIFICANT DIFFERENCES
WITH SEVERAL LOW PRES SYSTEMS EXPECTED TO REMAIN W OF THE OFFSHORE
WATERS DURING THIS PERIOD. THE INITIAL STRONG LOW WILL PASS W OF
THE AREA WED AND WED NIGHT. THE GFS/CMC ARE REASONABLY CLOSE...AND
APPEAR TO BE DECENT COMPROMISES BETWEEN THE FASTER UKMET AND THE
SLOWER ECMWF. ANOTHER LOW WILL PASS W OF THE AREA THU INTO THU
NIGHT WITH COLD FRONT APPROACHING THE WATERS. EVEN THOUGH THERE
CONTINUE TO BE DIFFERENCES WITH HANDLING OF LOW...THE MODELS ALL
DO INDICATE GALES WITH THE INITIAL SYSTEM WED NIGHT...AND THE
SECOND SYSTEM THU INTO THU NIGHT. WILL POPULATE GRIDS USING THE
GFS 10M WINDS THROUGH THE PERIOD WITH CONFDC ON WARNINGS IN THE
LOW TO MDT RANGE.

.SEAS...THE 06Z SEA STATE ANALYSIS INDICATED THAT ONBSERVED SEAS
CONTINUE TO BE WITHIN A FT OF THE MWW3 MLD VALUES. SINCE WILL BE
USING THE GFS THROUGH THE PERIOD...WILL ALSO POPULATE WAVE GRIDS
USING THE MWW3.

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

.WARNINGS...PRELIMINARY.

.PZ5 WASHINGTON/OREGON WATERS...
.PZZ800...INNER WATERS FROM CAPE FLATTERY TO CAPE SHOALWATER...
     GALE POSSIBLE THU.
.PZZ900...OUTER WATERS FROM CAPE FLATTERY TO CAPE SHOALWATER...
     GALE POSSIBLE WED NIGHT INTO THU.
.PZZ805...INNER WATERS FROM CAPE SHOALWATER TO CAPE LOOKOUT...
     GALE POSSIBLE THU INTO THU NIGHT.
.PZZ905...OUTER WATERS FROM CAPE SHOALWATER TO CAPE LOOKOUT...
     GALE POSSIBLE THU.
.PZZ810...INNER WATERS FROM CAPE LOOKOUT TO FLORENCE OR...
     GALE POSSIBLE THU INTO THU NIGHT.
.PZZ910...OUTER WATERS FROM CAPE LOOKOUT TO FLORENCE OR...
     GALE POSSIBLE WED NIGHT INTO THU.
.PZZ815...INNER WATERS FROM FLORENCE OR TO POINT ST. GEORGE...
     GALE POSSIBLE THU INTO THU NIGHT.
.PZZ915...OUTER WATERS FROM FLORENCE OR TO POINT ST. GEORGE...
     GALE POSSIBLE WED NIGHT INTO THU.

.PZ6 CALIFORNIA WATERS...
.PZZ820...INNER WATERS FROM POINT ST. GEORGE TO POINT ARENA...
     GALE POSSIBLE THU INTO THU NIGHT.
.PZZ920...OUTER WATERS FROM POINT ST. GEORGE TO POINT ARENA...
     GALE POSSIBLE WED NIGHT INTO THU.
.PZZ825...INNER WATERS FROM POINT ARENA TO PIGEON POINT...
     GALE POSSIBLE THU NIGHT.
.PZZ925...OUTER WATERS FROM POINT ARENA TO PIGEON POINT...
     GALE POSSIBLE THU INTO THU NIGHT.
.PZZ930...OUTER WATERS FROM PIGEON POINT TO POINT PIEDRAS BLANCAS...
     GALE POSSIBLE THU NIGHT.

$$

.FORECASTER KOSIER. OCEAN PREDICTION CENTER.


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