

448 

AGPN40 KWNM 030225

MIMPAC



MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN

NWS OCEAN PREDICTION CENTER WASHINGTON DC

725 PM PDT FRI SEP 2 2016



.FORECAST DISCUSSION: MAJOR FEATURES/WINDS/SEAS/SIGNIFICANT

.WEATHER FOR THE NORTH PACIFIC N OF 30N AND E OF 150W.



THE LATEST MODEL GUIDANCE INDICATES THAT HIGH PRES WELL W OF THE

PZ6 WATERS CONTINUES TO COMBINE WITH INLAND LOW PRES TO PRODUCE NW

WINDS UP TO 30 KT OFF THE COAST OF NRN AND CENTRAL CALIFORNIA WITH

THE STRONGEST CONDITIONS W OF POINT ARENA. THESE CONDITIONS WILL

REMAIN IN PLACE THROUGH WED. BY SAT NIGHT AND SUN NIGHT CONDITIONS

WILL COME CLOSE TO GALE FORCE OFF OF NRN CALIFORNIA...BUT FOR NOW

WILL KEEP THE WINDS AT 30 KT ACROSS THE OFFSHORE WATERS. FARTHER

N...ONE WEAK COLD FRONT WILL MOVE ACROSS THE PZ5 WATERS

MON...FOLLOWED BY ANOTHER WEAK FRONT TUE. FOR WIND GRIDS WILL

CONTINUE TO USE THE GFS 10M WINDS THROUGHOUT. THE CURRENT FORECAST

LOOKS REASONABLE AND WILL CONTINUE TO CARRY NO WARNINGS ACROSS THE

OFFSHORE WATERS DURING THE FORECAST PERIOD.



THE NWW3 LOOKS REASONABLE WITH THE SEAS AND WILL BE FOLLOWED

FAIRLY CLOSELY DURING THE FORECAST PERIOD.



EXTRATROPICAL STORM SURGE GUIDANCE...N/A.



-----------------------------------------------------------------

PREVIOUS DISCUSSION...



THE ASCAT PASS FROM 18Z INDICATES WINDS ACROSS THE WA/OR WATERS

ARE GENERALLY 5-15 KT. FURTHER S OVER THE CA WATERS WINDS INCREASE

TO NW 15-25 KT...WITH SMALL AREA OF 30 KT IN THE COASTAL WATERS NR

PT ARENA.



THE FORECAST PATTERN ACROSS THE EPAC HAS BEEN VERY STABLE OVR THE

PAST FEW DAY. THE DRIVING FORCES WILL CONTINUE TO BE A LARGE HIGH

PRES CENTER WELL W OF THE CALIFORNIA WATERS...WHILE A LOW PRES

TROUGH PERSISTS ALONG THE CALIFORNIA COAST. THE STRONGEST WINDS

ARE EXPECTED OVR THE COASTAL WATERS ALONG THE NRN CA CST WHERE

OCCASIONAL GUSTS TO GALE FORCE ARE POSSIBLE. WINDS OVER THE SRN CA

WATERS WILL GRADUALLY DIMINISH OVER THE NEXT FEW DAYS AS THE

GRADIENT WEAKENS OVER THEE REGION. THE 12Z GLOBAL MODELS ARE IN

HTE BEST AGREEMENT THAT THEY HAVE BEEN ALL WEEK WITH VERY LITTLE

DIFFERENCE BETWEEN GFS AND ECMWF THROUGHOUT THE PERIOD. WILL POP

THE WIND GRIDS USING THE GFS.



SEAS...BOTH THE WAM AND ENP INITIALIZED PRETTY WELL ACROSS THE

WATERS AND APPEAR REASONABLE THROUGHOUT. WILL CONTINUE TO POP THE

WAVE GRIDS USING THE ENP THROUGHOUT.



EXTRATROPICAL STORM SURGE GUIDANCE...N/A. 





.WARNINGS...PRELIMINARY.



.PZ5 WASHINGTON/OREGON WATERS...

     NONE.



.PZ6 CALIFORNIA WATERS...

     NONE.



$$



.FORECASTER NOLT/SHAW. OCEAN PREDICTION CENTER.

