Marine Interpretation Message
Issued by NWS

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AGNT40 KWNM 310658
MIMATN

MARINE WEATHER DISCUSSION FOR N ATLANTIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
258 AM EDT SUN AUG 31 2014

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

TRANQUIL WEATHER WILL CONTINUE ACROSS THE WRN ATLC FOR THE NEXT SEVERAL
DAY. MODELS REMAIN IN EXCELLENT AGREEMENT THROUGH THE
FORECAST...EXCEPT FOR A SMALL DFFRCN ON DAY FIVE. STRONGEST WINDS
OF THE FCST ARE FCST TO OCCUR THIS AFTN AND TNGT AHEAD OF ADVNCNG
COLD FRONT OVER THE NRN WATERS. THE GFS AND ECMWF INCRS THE SW
FLOW TO 25 KT N OF 40N AND ELSEWHERE TO 20 KT N OF BALT CANYON.
WINDS TNGT IN THE NW GULF OF MAINE ARE SLGTLY CLOSER TO THE GFS
10M VERSUS THE 30M WINDS. WILL STAY WITH POPULATED WITH THE 10M
WINDS AS THESE ARE USUALY MORE REPRESENTATIVE IN SRLY FLOWS.

MODELS AGREE ON WEAK BOUNDRY PUSHING SE INTO THE GULF OF MAINE
LATE TNGT AND MON...THEN WASHING OUT MON NGT INTO TUE. NEXT FRONT
WILL APPRCH FM THE W TUE AND IS FCST TO MOVE OFF THE COAST N OF
CAPE MAY BY 12Z WED...WITH A SUBTLE SHIFT OF WIND DRCTN FM W TO
NW...WHILE WINDS RMN LGT. FRONT WILL PUSH S TO NR CAPE HATTERAS BY
12Z THU. THEN MODELS DISSAGREE SLGTLY...AS THE GFS IS ALONE IN
MAINTAINING HIGH OVER MID ATLC RGN WHILE THE ECMWG/UKMET/GEM ALL
TAKE THE SFC HIGH OFFSHORE...ALLOWING FOR A RETURN SW FLOW OVR THE
GULF OF MAINE THU NGT. USE USE THE ECMWF AFT 90418Z.


.SEAS...THE MULTIGRID WAVEWATCH INITILIZED WELL...EXCEPT SEAS OVR
THE GULF OF MAINE ARE ABOUT A FT OVR THE MODEL. WAVE GUIDANCE
LOOKS REASONABLE...AGREES WELL WITH THE ECMWF WAM...AND WILL BE
FOLLOWED FAIRLY CLOSELY.


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


.WARNINGS...PRELIMINARY.

.NT1 NEW ENGLAND WATERS...
     NONE.

.NT2 MID ATLC WATERS...
     NONE.

$$

.FORECASTER PROSISE. OCEAN PREDICTION CENTER.


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