Marine Interpretation Message
Issued by NWS

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000
AGNT40 KWNM 210709
MIMATN

MARINE WEATHER DISCUSSION FOR N ATLANTIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
209 AM EST SUN DEC 21 2014

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



SUMMARY...A HI PRES RIDGE WILL BUILD OFSHR TODAY...THEN SHIFT NE
ACROSS THE NRN NT2 AND NT1 WTRS TONITE THRU TUE. DVLPG LOW PRES
OFF THE GEORGIA COAST WILL DRIFT N NEAR THE COAST TODAY INTO
TUE...THEN DSIPT NEAR THE NEW JERSEY COAST TUE NITE. THE LOW WILL
PULL A WARM FRONT N ACROSS THE NT2 WTRS TODAY THRU TUE. THE WARM
FRONT WILL LIFT N OVER THE NT1 WTRS TUE NITE THRU WED NITE. A STG
COLD FRONT WILL MOVE OFF THE SE COAST LATER WED...CONT E OFF THE
MID ATLC COAST WED NITE...THEN PASS E ACROSS ALL OF THE OFSHR WTRS
THU. ANOTHER RIDGE WILL MOVE E INTO THE AREA LATE THU AND THU
NITE.

MODELS...THE 00Z MED RNG MDLS ARE IN GUD OVERALL AGREEMENT ACROSS
THE OFSHR WTRS THRU WED. MINOR TIMING DIFFS REGARDING PASSAGE OF A
STG COLD FRONT WED NITE INTO THU...WITH THE 00Z GFS SLOWER WITH
THE COLD FNT THAN THE OTHER MDLS. SO WILL USE 00Z GFS TO POPULATE
THE WIND GRIDS THRU WED...THEN USE THE 00Z ECMWF THEREAFTER AS ITS
TIMING OF THE FRONT FITS IN BETTER WITH THE PREV FCST AND THE
OVERALL CONSENSUS OF THE MDLS. AM NOT PLANNING TO MAKE ANY SIGNIF
CHANGES TO THE CURRENT FCST TREND.

.SEAS...THE 00Z MULTIGRID WW3 MDL AND 00Z ECMWF WAM BOTH
INITIALIZED WELL OVER THE OFSHR WTRS. THE MWW3 WILL BE USED FOR
TODAY THRU WED...BEFORE SWITCHING TO THE ECMWF WAM FOR THE WED
NITE THRU THU NITE PRD.

.EXTRATROPICAL STORM SURGE GUIDANCE...ESTOFS AND ETSS MDL GUIDANCE
LOOKS REASONABLE THRU MOST OF THE FCST PRD...SINCE AM NOT DEVIATING
MUCH FROM THE GFS MDL WINDS THRU WED. WITH ONLY MINOR TIMING DIFFS
AS NOTED ABOVE REGARDING PASSAGE OF THE STG COLD FRONT FOR LATER
WED AND WED NITE...NO SIGNIF IMPACTS ON THE SURGE MDLS IS EXPCTED.

.WARNINGS...PRELIMINARY.

.NT1 NEW ENGLAND WATERS...
.ANZ800...GULF OF MAINE...
     GALE POSSIBLE WED NIGHT INTO THU.
.ANZ805...GEORGES BANK WEST OF 68W...
     GALE POSSIBLE WED NIGHT.
.ANZ900...GEORGES BANK EAST OF 68W...
     GALE POSSIBLE WED NIGHT INTO THU.
.ANZ810...SOUTH OF NEW ENGLAND...
     GALE POSSIBLE WED NIGHT.
.ANZ815...SOUTH OF LONG ISLAND...
     GALE POSSIBLE WED NIGHT.

.NT2 MID ATLC WATERS...
.ANZ820...HUDSON CANYON TO BALTIMORE CANYON...
     GALE POSSIBLE WED NIGHT.
.ANZ915...HUDSON CANYON TO THE GREAT SOUTH CHANNEL...
     GALE POSSIBLE WED NIGHT.
.ANZ920...BALTIMORE CANYON TO THE GREAT SOUTH CHANNEL...
     GALE POSSIBLE WED NIGHT.
     GALE POSSIBLE THU NIGHT.
.ANZ905...THE GREAT SOUTH CHANNEL TO THE HAGUE LINE...
     GALE POSSIBLE WED NIGHT INTO THU.
.ANZ910...EAST OF THE GREAT SOUTH CHANNEL AND SOUTH OF 39N...
     GALE POSSIBLE WED NIGHT INTO THU.
.ANZ825...INNER WATERS FROM BALTIMORE CANYON TO CAPE CHARLES LIGHT...
     GALE POSSIBLE WED NIGHT.
.ANZ828...INNER WATERS FROM CAPE CHARLES LIGHT TO CURRITUCK BEACH LIGHT...
     GALE POSSIBLE WED NIGHT.
.ANZ925...OUTER WATERS FROM BALTIMORE CANYON TO HATTERAS CANYON...
     GALE POSSIBLE WED NIGHT.
     GALE POSSIBLE THU NIGHT.
.ANZ830...INNER WATERS FROM CURRITUCK BEACH LIGHT TO CAPE HATTERAS...
     GALE POSSIBLE WED NIGHT.
.ANZ833...INNER WATERS FROM CAPE HATTERAS TO CAPE FEAR...
     GALE POSSIBLE WED INTO WED NIGHT.
.ANZ930...OUTER WATERS FROM HATTERAS CANYON TO CAPE FEAR...
     GALE POSSIBLE WED NIGHT.
.ANZ835...INNER WATERS FROM CAPE FEAR TO 31N...
     GALE POSSIBLE WED INTO WED NIGHT.
.ANZ935...OUTER WATERS FROM CAPE FEAR TO 31N...
     GALE POSSIBLE WED NIGHT.

$$

.FORECASTER SCOVIL. OCEAN PREDICTION CENTER.



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