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 282141
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
241 PM PDT SAT MAR 28 2015

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

PER THE 18Z OPC SFC ANALYSIS A WARM FRONT WAS OVER THE ERN OR
WATERS WHILE A HIGH PRES RIDGE WAS OVER THE REST OF THE PZ6
WATERS. AVAILABLE 1827Z ASCAT HIRES PASS INDICATED STRONGEST AREA
OF WINDS...20 T0 30 KT...WERE IN THE WRN OR/WA WATERS JUST AHEAD
OF A COLD FRONT...AND IN THE CENTRAL CA OFFSHORE WATERS IN N/NW
FLOW.

12Z GLOBAL GUIDANCE WAS IN FAVORABLE AGREEMENT OVER THE PERIOD SO
GENERALLY FAVORED 12Z GFS. COLD FRONT MOVES INTO THE PZ5 WATERS
TONIGHT...STALLS W/LOW PRES DEVELOPING SW OF THE AREA ALONG THE
FRONT SUN NIGHT...MOVING NE JUST TO THE NW OF THE AREA MON. USED
30M GFS WINDS AHEAD OF THE FRONT...CONTINUING MENTION OF GALES IN
THE NW PZ5 WATERS SUN NIGHT. ONCE THE FRONT CLEARS MON NIGHT A
HIGH PRES RIDGE BUILDS IN AND BECOME THE MAIN FEATURE THROUGH THE
REST OF THE PERIOD OVER THE PZ5 WATERS...THOUGH A WEAK LOW PRES
TROUGH MOVES THROUGH TUE NIGHT. OVER THE SRN PZ6 WATERS CONCERN
REMAINS INCREASING WINDS TOWARDS MIDWEEK AS A LOW PRES TROUGH
ALONG THE CA COAST STRENGTHENS WHILE INTERACTING W/A HIGH PRES
RIDGE OVER THE WATERS. GLOBAL GUIDANCE IS ALL IN GENERAL AGREEMENT
W/THIS SCENARIO W/THE 12Z GFS/ECMWF/UKMET/CMC IN AGREEMENT
SUGGESTING RISK OF GALES TO PARTS OF THE OFFSHORE WATERS. FAVORED
30M GFS WINDS LATE TUE NIGHT INTO THU WHEN THE TROUGH IS EXPECTED
TO BE AT ITS STRONGEST. THIS RESULTS IN CONTINUED MENTION OF GALES
IN PARTS OF THE SRN CA WATERS AS WELL.

.SEAS...FAVORED 12Z NWW3 OVER THE PERIOD.


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


.WARNINGS...PRELIMINARY.

.PZ5 WASHINGTON/OREGON WATERS...
.PZZ900...OUTER WATERS FROM CAPE FLATTERY TO CAPE SHOALWATER...
     GALE SUN NIGHT.
.PZZ905...OUTER WATERS FROM CAPE SHOALWATER TO CAPE LOOKOUT...
     GALE SUN NIGHT.

.PZ6 CALIFORNIA WATERS...
.PZZ830...INNER WATERS FROM PIGEON POINT TO POINT PIEDRAS BLANCAS...
     GALE POSSIBLE WED NIGHT.
.PZZ835...INNER WATERS FROM POINT PIEDRAS BLANCAS TO SANTA CRUZ ISLAND, CA...
     GALE POSSIBLE TUE NIGHT INTO THU.
.PZZ840...INNER WATERS FROM SANTA CRUZ ISLAND, CA TO SAN CLEMENTE ISLAND, CA...
     GALE POSSIBLE TUE NIGHT INTO THU.

$$

.FORECASTER HOLLEY. 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.