Marine Interpretation Message
Issued by NWS

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000
AGNT40 KWNM 281156
MIMATN

MARINE WEATHER DISCUSSION FOR N ATLANTIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
756 AM EDT SAT MAR 28 2015

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

SUMMARY...DVLPG LOW PRES WILL MOVE NE ACROSS THE NE NT2 WTRS
TODAY...THEN MOVE OFF TO THE NE AND INTENSIFY THIS EVNG AND
TONITE. A TROF WILL FORM OVER THE NRN NT2 WTRS TONITE...THEN MOVE
SE OF THE NT2 AREA SUN. A HI PRES RIDGE WILL BUILD OFSHR SUN AND
SUN NITE...THEN PASS SE ACROSS THE NT2 WTRS MON. A COLD FRONT WILL
PASS E ACROSS THE OFSHR WTRS MON AND MON NITE. ANOTHER TROF WILL
MOVE SE OVER THE NT1 WTRS TUE AND TUE NITE. ANOTHER DVLPG LOW WILL
MOVE SE TO THE MID ATLC COAST TUE NITE...PASS E OVER THE NRN NT2
WTRS WED...THEN MOVE OFF TO THE NE WHILE INTENSIFYING LATE WED AND
WED NITE. ANOTHER RIDGE WILL BUILD OFSHR LATE WED AND WED NITE.

MODELS...THE MED RNG MDLS ARE IN VRY GUD OVERALL AGREEMNT ACROSS
THE OFSHR WTRS FOR TODAY THRU TUE...SO THE REPRESENTATIVE GFS 30M
WILL BE USED TO POPULATE THE WIND GRIDS FOR THIS TIMEFRAME. THE
GFS IS AN OUTLYER SOLN FOR THE LATE TUE THRU WED NITE PRD...SINCE
IT IS SIGNIF FASTER THAN THE OTHER MED RNG MDLS WITH THE DVLPG
LOW. WILL USE THE ECMWF FOR THE LATE TUE THRU WED NITE PRD...SINCE
IT IS A GUD MEDIAN SOLN FOR THAT TIMEFRAME AND HAS VRY GUD SUPPORT
FROM THE LATEST WPC MED RNG FCSTR GUIDANCE.

.SEAS...THE MULTIGRID WW3 AND ECMWF WAM BOTH INITIALIZED WELL
ACROSS THE OFSHR WTRS. THESE MDLS ARE IN VRY GUD AGREEMNT THRU
TUE...SO WILL JUST USE THE MWW3 FOR THE SEA HT GRIDS DURING THIS
PRD. MWW3 IS A FEW FEET HIGHER OVER THE NRN NT2 WTRS ON TUE
NITE...THEN ECMWF WAM IS HIGHER OVER THE ERN NT2 WTRS WED AND WED
NITE. WILL GO WITH A 50/50 BLEND OF THE MWW3/ECMWF WAM TO SMOOTH
OUT THE MDL DIFFS.

.EXTRATROPICAL STORM SURGE GUIDANCE...ESTOFS HAS BEEN FCSTG A NEG
SURGE OF 1.0 TO 1.5 FT ALONG THE SE COAST THAT WILL DIMINISH THIS
MRNG. ESTOFS FCSTS ANOTHER NEG SURGE OF 1.0 TO 1.5 FT ALONG THE
MID ATLC COAST MON NITE INTO TUE. THE ETSS HAS CORRESPONDING NEG
SURGE VALUES OF 1.0 FT OR LESS.

.WARNINGS...PRELIMINARY.

.NT1 NEW ENGLAND WATERS...
.ANZ900...GEORGES BANK EAST OF 68W...
     GALE TODAY.
.ANZ815...SOUTH OF LONG ISLAND...
     GALE POSSIBLE MON.

.NT2 MID ATLC WATERS...
.ANZ820...HUDSON CANYON TO BALTIMORE CANYON...
     GALE POSSIBLE MON.
     GALE POSSIBLE TUE NIGHT.
.ANZ915...HUDSON CANYON TO THE GREAT SOUTH CHANNEL...
     GALE SUN.
     GALE POSSIBLE MON.
     GALE POSSIBLE TUE NIGHT.
.ANZ920...BALTIMORE CANYON TO THE GREAT SOUTH CHANNEL...
     GALE TODAY INTO SUN NIGHT.
     GALE POSSIBLE MON INTO WED.
.ANZ905...THE GREAT SOUTH CHANNEL TO THE HAGUE LINE...
     GALE TODAY.
     GALE POSSIBLE MON NIGHT INTO TUE.
.ANZ910...EAST OF THE GREAT SOUTH CHANNEL AND SOUTH OF 39N...
     GALE TODAY.
     GALE SUN NIGHT.
     GALE POSSIBLE MON INTO WED.
.ANZ825...INNER WATERS FROM BALTIMORE CANYON TO CAPE CHARLES LIGHT...
     GALE POSSIBLE MON INTO MON NIGHT.
     GALE POSSIBLE TUE NIGHT.
.ANZ828...INNER WATERS FROM CAPE CHARLES LIGHT TO CURRITUCK BEACH LIGHT...
     GALE POSSIBLE MON INTO MON NIGHT.
     GALE POSSIBLE TUE NIGHT.
.ANZ925...OUTER WATERS FROM BALTIMORE CANYON TO HATTERAS CANYON...
     GALE EARLY TODAY INTO TODAY.
     GALE SUN INTO SUN NIGHT.
     GALE POSSIBLE MON INTO MON NIGHT.
     GALE POSSIBLE TUE NIGHT.
.ANZ830...INNER WATERS FROM CURRITUCK BEACH LIGHT TO CAPE HATTERAS...
     GALE POSSIBLE MON.
.ANZ930...OUTER WATERS FROM HATTERAS CANYON TO CAPE FEAR...
     GALE EARLY TODAY.
     GALE POSSIBLE MON NIGHT.
.ANZ935...OUTER WATERS FROM CAPE FEAR TO 31N...
     GALE EARLY TODAY.

$$

.FORECASTER SCOVIL. OCEAN PREDICTION CENTER.



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