

245 

AGNT40 KWNM 151906

MIMATN



MARINE WEATHER DISCUSSION FOR N ATLANTIC OCEAN

NWS OCEAN PREDICTION CENTER WASHINGTON DC

306 PM EDT MON AUG 15 2016



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

.WEATHER FOR THE NORTH ATLANTIC OCEAN W OF 50W FROM 30N TO 50N.



THE MOST RECENT ASCAT PASS SHOWS MAINLY LIGHT WINDS ACROSS THE

OFFSHORE WATERS...LESS THAN 15 KT. THE RIDGE AXIS EXTENDS E/W

ALONG 33N OVER THE WATERS. SEAS ARE GENERALLY 2-4 FT ACROSS THE

ENTIRE AREA. THE PROGRESSIVE UPR LEVEL PATTERN WILL CONTINUE OVER

THE NRN WATERS DURING THE NEXT 3 DAYS AS THE RIDGE AXIS PERSISTS

ACROSS THE SRN REGION. ON DAYS 3-5 A S/WV WILL MOVE E OVER THE

WATERS WHILE WEAKENING THE UPR RIDGE. DAYS 5 AND 6 WILL BRING A

BUILDING RIDGE TO THE NRN AND CENTRAL WATERS.



THE 12Z GLOBAL MODELS ARE IN VERY GOOD AGREEMENT THROUGH 00Z

THU...THEN BEGIN TO DIVERGE SLIGHTLY...MAINLY DUE THE THE

POSITION OF A FRONTAL BNDRY AND ASSOCIATE WAVE THAT MOVES OFF THE

CST. THE UKMET AND THE GFS ARE IN THE BEST AGREEMENT THROUGH 18Z

FRI...THEREFOR WILL POP THE WIND GRIDS USING THE 10M GFS THROUGH

THEN. AFTER 18Z FRI...THE ECMWF AND UKMET ARE MORE SIMILAR...WHILE

THE GFS IS THE OUTLIER. WILL POP THE WIND GIRDS USING THE ECMWF

FROM 21Z FRI THROUGH THE REMAINDER OF THE 7 DAY PERIOD.



SEAS...THE WW3 AND WAM WERE BOTH INITALIZED WELL. WILL POP THE

WAVE GRIDS USING THE CORRESPONDING WIND GRIDS TO MATCH.



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



.WARNINGS...PRELIMINARY.



.NT1 NEW ENGLAND WATERS...

     NONE.



.NT2 MID ATLC WATERS...

     NONE.



$$



.FORECASTER SHAW. OCEAN PREDICTION CENTER.

