Marine Interpretation Message
Issued by NWS

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693
AGPN40 KWNM 291510
MIMPAC

MARINE WEATHER DISCUSSION FOR N PACIFIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
810 AM PDT THU SEP 29 2016

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

NO SIGNIFICANT CHANGES TO THE FORECAST ANTICIPATED AT THIS TIME.

SEAS...ENP VERSION OF WAVEWATCH WITHIN A FOOT OR TWO OF CURRENT
OBS.

-----------------------------------------------------------------
PREVIOUS DISCUSSION...

THE 06Z SFC ANALYSIS INDICATED LOW PRES NW OF THE WA/OR OFFSHORE
WATERS WITH TROUGH EXTENDING S. WEAK TROUGH EXTENDED N ALONG THE
CA COAST. ASCAT PASSES FROM LATE WED EVENING MISSED MAJORITY OF
THE OFFSHORE/COASTAL WATERS...HOWEVER THE ASCAT DATA SUPPLEMENTED
WITH SHIP/BUOY OBS DEPICTED SEVERAL AREAS OF 20 TO 25 KT WINDS
OVER THE SRN WA/NRN OR WATERS AND OVER THE SRN OR/N CA WATERS.

THE 00Z MODELS ARE IN VERY GOOD AGREEMENT DURING THE FCST
PERIOD...WITH THE 00Z GFS/ECMWF INDICATING VERY FEW DIFFERENCES
WITH SFC FEATURES THROUGHOUT. SEVERAL LOW PRES AREAS WILL MOVE SE
ACROSS THE WA/OR WATERS BEFORE WEAKENING AND EVENTUALLY
DISSIPATING TODAY THROUGH SUN EVENING. THE FIRST LOW MENTIONED
ABOVE WILL MOVE ACROSS THE WA/OR WATERS TODAY INTO FRI...WITH
SECOND LOW MOVING INTO THE WA WATERS SAT MORNING THEN TRACKING SE
SE INTO THE OR WATERS SAT NIGHT/SUN. WINDS WILL REMAIN WELL BELOW
GALE THRESHOLD WITH BOTH LOWS. AT THE SAME TIME...WEAK HIGH PRES
RIDGE WILL HOLD ACROSS THE CA WATERS...THOUGH RIDGE WILL WEAKEN
OVER N CA WATERS SAT INTO SUN. THEN LOOKING AHEAD TO SUN NIGHT
THROUGH MON NIGHT...A COLD FRONT WILL MOVE INTO THE WA/OR/N CA
WATERS WHILE WEAKENING. THE UKMET IS SLIGHTLY FASTER WITH THIS
FRONT WHILE THE GFS/ECMWF ARE VERY CLOSE WITH THE TIMING OF FRONT.
ONCE AGAIN...WINDS WILL REMAIN BELOW GALE WITH THIS FRONT. IN
SUMMARY...GIVEN THE VERY GOOD AGREEMENT BETWEEN THE 00Z GFS/ECMWF
PLAN ON USING THE 00Z GFS 10M WINDS THROUGHOUT.

.SEAS...THE 06Z SEA STATE ANALYSIS INDICATED THAT OBSERVED SEAS
CONTINUE TO BE WITHIN A FT OF THE MWW3 FCST VALUES. SIMILAR TO
WIND GRIDS...PLAN ON USING THE MWW3 VALUES THROUGHOUT WITH VERY
GOOD SUPPORT FROM ECMWF WAM.

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


.WARNINGS...PRELIMINARY.

.PZ5 WASHINGTON/OREGON WATERS...
     NONE.

.PZ6 CALIFORNIA WATERS...
     NONE.

$$

NOTE: ON OCTOBER 06, 2016...THE NWS FTPMAIL SERVICE WILL DISABLE
THE CURRENT EMAIL ADDRESS. THE NEW EMAIL ADDRESS IS LIVE NOW.
PLEASE TRANSITION TO IT AS SOON AS POSSIBLE TO AVOID A SERVICE
DISRUPTION.

NEW EMAIL ADDRESS...NWS.FTPMAIL.OPS@NOAA.GOV
/ALL LOWER CASE LETTERS/

FOR THE SERVICE CHANGE NOTICE...PLEASE GO TO
HTTP://WWW.NWS.NOAA.GOV/OS/NOTIFICATION/SCN16-37FTPMAIL.HTM
/ALL LOWER CASE LETTERS/

.FORECASTER ACHORN/KOSIER. OCEAN PREDICTION CENTER.



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