Marine Interpretation Message
Issued by NWS

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000
AGNT40 KWNM 251912
MIMATN

MARINE WEATHER DISCUSSION FOR N ATLANTIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
312 PM EDT MON MAY 25 2015

.FORECAST DISCUSSION: MAJOR FEATURES/WINDS/SEAS/SIGNIFICANT
.WEATHER FOR THE NORTH ATLANTIC OCEAN W OF 50W FROM 30N TO 50N.

SUMMARY...A QUIET WX PATTERN IS EXPCTD TO PREVAIL OVER THE OFSHR
WTRS THRU THE FCST PRD. LATEST AVAIL ASCAT PASSES FROM 1410Z TO
1414Z SHOW LIGHT WINDS ACROSS THE CSTL/OFSHR WTRS. A HI PRES
RIDGE WILL PERSIST OVER THE NT2 AREA THRU THE ENTIRE FCST PRD. A
WARM FNT WILL PASS NW OF THE NT1 WTRS LATER TODAY AND TONITE. A
SERIES OF LOWS WILL PASS N OF THE NT1 AREA TUE THRU WED. A WEAK
COLD FNT WILL MOVE SE AND APRCH THE NT1 AREA THU...THEN DSIPT NEAR
THE MAINE COAST THU NITE. A STGR COLD FNT WILL MOVE SE AND APRCH
THE NEW ENG AND NEW JERSEY COAST SAT AFTN...THEN MOVE SE ACROSS
THE NT1 AND NRN NT2 WTRS LATE SAT AND SAT NITE.

MODELS...THE 12Z MED RNG MDLS ARE IN GUD OVERALL AGREEMNT THRU
THE FCST PRD...EXCEPT 12Z GEM/NOGAPS BECOME SIGNIF SLOWER WITH
THE MAIN WX FTRS FOR FRI THRU SAT NITE AND LOOK LIKE OUTLYER SOLNS
DURING THIS TIMEFRAME. ALSO THE 12Z GFS 30M LOOKS OVERDONE WITH
THE SW FLOW IN THE GULF OF MAINE ON WED...THEN AGAIN FRI NITE AND
SAT. WILL USE THE REPRESENTATIVE 12Z GFS 10M SOLN TO POPULATE THE
WIND GRIDS THRU THE FCST PRD. AM NOT PLANNING TO MAKE ANY SIGNIF
CHANGES TO THE CURRENT FCST TREND.

.SEAS...THE 12Z MULTIGRID WAVEWATCH III MDL AND 12Z ECMWF WAM BOTH
INITIALIZED WELL OVER THE OFSHR ZONES. THERE ARE SOME MOSTLY MINOR
DIFFS BTWN THE TWO MDLS OVER THE NT1 AREA DURING THE THU THRU SAT
NITE PRD...SO WILL BE USING A 50/50 BLEND OF THE 12Z MWW3/ECMWF WAM
TO SMOOTH OUT THE MDL DIFFS.

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

.WARNINGS...PRELIMINARY.

.NT1 NEW ENGLAND WATERS...
     NONE.

.NT2 MID ATLC WATERS...
     NONE.

$$

.FORECASTER SCOVIL. OCEAN PREDICTION CENTER.



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