Marine Interpretation Message
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
AGPN40 KWNM 272037
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1237 PM PST TUE JAN 27 2015

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

THE 18Z SFC ANALYSIS INDICATED A WEAK LOW PRES OVER THE SRN OREGON
OFFSHORE WATERS...WITH STATIONARY FRONT EXTENDING NE AND SW FROM
THE LOW. HIGH PRESSURE RIDGE EXTENDED FROM THE WA WATERS SW. AN
ASCAT PASS FROM 1730Z WITH LIMITED COVERAGE OVER THE CENTRAL AND
SRN CA WATERS INDICATED WINDS 15 KT OR LESS. A RAPID SCAT PASS
FROM EARLIER TUE MORNING WITH COVERAGE OVER NEARLY ALL OF AREA
ALSO INDICATED WINDS 15 KT OR LESS.

THE 12Z MODELS WERE IN VERY GOOD AGREEMENT THROUGH MUCH OF THE
FCST PERIOD...THOUGH BY LATE SAT THE MODELS BEGIN TO GO IN
DIFFERENT DIRECTIONS. FOR THE PERIOD FROM TONIGHT THROUGH SAT
MORNING...THE FCST IS STRAIGHT FORWARD WITH HIGH PRES RIDGE
PERSISTING OVER THE WATERS WHILE TROUGH STRENGTHENS SLIGHTLY OVER
THE CA COAST. FOR SAT NIGHT THROUGH SUN NIGHT...THE GFS INDICATES
A STRONG LOW APPROACHING THE NRN OFFSHORE WATERS...WHILE THE
ECMWF/GEM ARE FURTHER W. PLAN ON POPULATING GRIDS USING THE 10M
GFS WINDS THROUGH 09Z SAT. FROM 12Z SAT AND BEYOND...WILL POPULATE
USING THE 12Z ECMWF WINDS. NO WARNING HEADLINES WILL BE NEEDED
THROUGH THE PERIOD.

.SEAS...THE 18Z SEA STATE ANALYSIS INDCATED THAT OBSERVED SEAS
COTNINUE TO MATCH UP WELL WITH THE MWW3/ECMWF WAM WAVE VALUES.
WILL USE THE MWW3 TO POPULATE GRIDS THROUGH 09Z SAT...THEN WILL
TRANSISTION TO ECMWF WAM WAVE HEIGHTS FOR THE REMAINDER OF THE
PERIOD.

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

.WARNINGS...PRELIMINARY.

.PZ5 WASHINGTON/OREGON WATERS...
     NONE.

.PZ6 CALIFORNIA WATERS...
     NONE.

$$

.FORECASTER KOSIER. OCEAN PREDICTION CENTER.


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.