Marine Interpretation Message
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
000
AGNT40 KWNM 281903
MIMATN

MARINE WEATHER DISCUSSION FOR N ATLANTIC OCEAN
NWS OCEAN PREDICTION CENTER WASHINGTON DC
303 PM EDT WED SEP 28 2016

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

THERE WAS AN ASCAT PASS AT 1345Z JUST ALG OR E OF THE NRN MID
ATLC WTRS ASSOC WITH LOW PRES THAT WAS MOVG NE FM THE CNTRL AND
NRN MID ATLC. THERE WERE A FEW 35 KT ALG OR S OF THE WM FNT WHICH
WERE RAIN- FLAGGED.

A STNRY FNT XTNDS NE TO SW ACRS FM THE SERN AREAS OF THE NEW
ENGLAND INTO THE NWRN AREAS OF THE NRN MID ATLC WTRS NR THE MOUTH
OF THE CHESAPEAKE BAY EARLY THIS AFTN. MDLS HAV LOW PRES MOVG E OF
THE NRN MID ATLC LATER TNGT AND BECOMG MUCH STGR WELL E OF THE
AREA THU NGT AND FRI. STGST WINDS TO 35 KT SHUD STAY OVR THE SERN
QUAD AND OVR A SMALL AREA OF THE N QUAD THIS AFTN INTO EARLY TNGT.
FOR THE GRIDS WL CONT TO FAVOR THE GFS AND ITS OUTPUT WITH SOME
MODIFICATIONS. FAIRLY STG HIGH PRES BUILDS IN FM THE N OVR THE
NEW ENGLAND INTO THE NRN MID ATLC WTRS TO THE N AND NW OF THE
STALLED FNT. MDLS LOOK SMLR TO EARLIER GUID WITH GALES DVLPG BY
EARLY THU NGT E OF THE NJ COAST. THE UKMET LOOKS STGR WITH THE
NELY WINDS TO GALE FORCE AS THE STG HIGH PRES MOVS TO THE S. THE
HIGH PRES AREA BECOMS WKR BY FRI AFTN AND FRI NGT...AND PASSES TO
THE E OF THE NRN OFFSHR WTRS SAT. THE STALLED FNT GRADUALLY RETURNS
TO THE N OVR THE NEW ENGLAND WTRS SAT NGT AND SUN WITH LOW PRES
DVLPG ON THE FNT. THE GFS/GEM ARE QUICKER WITH STRENGTHENING THE
DVLPG LOW AS IT PASSES E OF THE AREA WHILE THE UKMET/ECMWF ARE WKR
AND FURTHER S AND SE WITH A TRACK. THE GEM IS SLOWER WITH MOVG
HIGH PRES TO THE SE AND IS CLOSER TO THE UKMET/ECMWF. PREFER THE
MORE SRN TRACK OFFERED BY THE UKMET/ECMWF AND WL USE THIS SCENARIO
WITH THE GRIDS.

SEAS... THE WWIII AND ECWMF WAM ARE SHOWING A FEW DIFFS INIT. THE
ECMWF WAM IS HIGHER WITH THE SEAS ASSOC WITH THE LOW PRES NOW
LIFTING NE OVR THE NRN MID ATLC. HAV NOT SEEN ANY JASON PASSES TO
VERIFY WHETHER HIGHER SEAS ARE OCCURRING. WL LIKELY FAVOR THE
WWIII AND BOOST SEAS INIT OVR THE SE QUAD OF THE LOW PRES. BY LATE
THU AND THU NGT THE WWIII/ECMWF WAM ARE IN CLOSE AGRMT. BY LATE
SAT INTO MON NGT WL LEAN MORE TOWARDS THE ECMWF WAM.

.EXTRATROPICAL STORM SURGE GUIDANCE...THE 12Z GUID SHOWS A SURGE
OF 2 FT OR SO ALONG THE NEW JERSEY COAST INTO LONG ISLAND LATER
THU INTO FRI IN ASSOCIATION WITH THE STG E TO NELY WINDS FM THE GFS
WHICH LOOKS RSNBL.



.WARNINGS...PRELIMINARY.

.NT1 NEW ENGLAND WATERS...
.ANZ810...SOUTH OF NEW ENGLAND...
     GALE FRI.
.ANZ815...SOUTH OF LONG ISLAND...
     GALE THU NIGHT INTO FRI.

.NT2 MID-ATLANTIC WATERS...
.ANZ820...HUDSON CANYON TO BALTIMORE CANYON...
     GALE THU NIGHT INTO FRI.
.ANZ905...THE GREAT SOUTH CHANNEL TO THE HAGUE LINE...
     GALE TODAY INTO TONIGHT.
.ANZ910...EAST OF THE GREAT SOUTH CHANNEL AND SOUTH OF 39N...
     GALE TODAY.

$$

NOTE: ON OCTOBER 06, 2016...THE NWS FTPMAIL SERVICE WILL DISABLE
THE CURRENT EMAIL ADDRESS. THE NEW EMAIL ADDRESS IS LIVE NOW.
PLEASE TRANSITION TO IT AS SOON AS POSSIBLE TO AVOID A SERVICE
DISRUPTION.

NEW EMAIL ADDRESS...NWS.FTPMAIL.OPS@NOAA.GOV
/ALL LOWER CASE LETTERS/

FOR THE SERVICE CHANGE NOTICE...PLEASE GO TO
HTTP://WWW.NWS.NOAA.GOV/OS/NOTIFICATION/SCN16-37FTPMAIL.HTM
/ALL LOWER CASE LETTERS/

.FORECASTER ROWLAND. OCEAN PREDICTION CENTER.



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.