Marine Interpretation Message
Issued by NWS

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000
AGNT40 KWNM 230727
MIMATN

MARINE WEATHER DISCUSSION FOR N ATLANTIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
327 AM EDT THU OCT 23 2014

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

NOTE: 00Z ECMWF WAM NOT AVAIL PAST TAU-06 IN AWIPS/GFE ATTM.

SUMMARY...NUMEROUS OBS IN THE GLF OF MAINE ARE RPTG NE FLOW OF 35
TO 40 KT AND SEAS UP TO 21 FT...WHILE OBS OFF THE NRN MID ATLC
CST ARE RPTG N TO NE WINDS OF 25 TO 35 KT AND SEAS IN THE 9 TO 13
FT RNG. ASCAT PASS AT 0221Z SHOWED A SWATH OF MARG GALES IN N TO
NW FLOW NEAR THE MID ATL CST.

STRONG LOW PRES OFF THE MID ATLC CST WILL PASS NE ACROSS THE NT1
AREA TODAY INTO EARLY FRI WHILE DEEPENING...THEN MOVE OFF TO THE
NE LATER FRI THRU SAT. A STRONG COLD FRONT WILL APPROACH THE COAST
LATER SAT...THEN PASS SE ACROSS THE OFSHR WATERS SAT NITE INTO SUN
NITE. ANOTHER LOW IS EXPCTD TO PASS SE OF BERMUDA ARND SAT OR
SUN. A HI PRES RIDGE WILL BUILD SE INTO THE SRN NT2 WTRS SUN
NITE...THEN SPREAD OVER ALL OF THE REMAINING OFSHR WATERS MON AND
MON NITE.

MODELS...THE 00Z MED RNG MDLS ARE IN VRY GUD OVERALL AGREEMNT
ACROSS THE OFSHR WTRS THRU THE FCST PRD WITH ONLY VRY MINOR
PATTERN AND TIMING DIFFS NOTED. THE MED RNG MDLS ARE AGREED THAT A
LOW WILL EMERGE FROM THE TROPICS AND PASS SE OF BERMUDA ON SAT OR
SUN...BUT ATTM THEY ARE IN POOR AGREEMNT CONCERNING TIMING OF THIS
LOW. 00Z GFS 30M KEEPS MARG GALES IN THE GLF OF MAINE AND OFF THE
MID ATLC CST TODAY...WHILE THE 00Z ECMWF/UKMET CAP THE MAX WINDS
AT 30 KT IN THESE AREAS. BUT THE 00Z GFS 30M APRS TO BE
INITIALIZING BETTER THAN THE OTHER MDLS WITH THE WIND SPEEDS.
SINCE THE GFS HAS BEEN A VRY CONSISTENT AND REPRESENTATIVE MDL
SOLN OVER THE PAST FEW DAYS...THE 00Z GFS 30M WILL BE USED THRU
THE FCST PRD FOR THE WIND GRIDS. AM NOT PLANNING TO MAKE ANY
SIGNIF CHANGES TO THE CURRENT FCST TREND.

.SEAS...SINCE THE 00Z GFS 30M IS BEING USED FOR THE WIND GRIDS
THRU THE FCST PRD...THE 00Z MWW3 WILL BE USED FOR THE SEA HT
GRIDS FROM TODAY THRU SAT NITE. A 50/50 BLEND OF THE 00Z MWW3/12Z
ECMWF WAM WILL BE USED FOR SUN THRU MON NITE TO SMOOTH OUT DIFFS
BTWN THE MDLS OVER THIS TIMEFRAME.

.EXTRATROPICAL STORM SURGE GUIDANCE...ESTOFS INDICATES ABOUT A ONE
FOOT POS SURGE ARND CAPE COD BAY AND LONG ISLAND SOUND FOR TODAY
WITH THE STRONG NORTHEASTERLY FLOW.


.WARNINGS...PRELIMINARY.

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

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

$$

.FORECASTER SCOVIL. OCEAN PREDICTION CENTER.



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