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Area Forecast Discussion
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000
FXUS61 KOKX 220732
AFDOKX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW YORK NY
332 AM EDT MON SEP 22 2014

.SYNOPSIS...
A COLD FRONT CONTINUES EAST OF THE AREA TODAY WITH HIGH PRESSURE
BUILDING IN FROM THE WEST. THE HIGH PRESSURE REMAINS IN CONTROL OF
THE WEATHER THROUGH THE WEEKEND. 

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
A COLD FRONT WILL CLEAR EAST OF THE AREA THIS MORNING AS THE DEEP 
UPPER TROUGH SLOWLY PIVOTS EAST THROUGH THE DAY. ANY LINGERING 
SHOWERS AND PATCHES OF FOG THIS MORNING WILL QUICKLY DISSIPATE BY 
SUNRISE AND THE PASSAGE OF THE FRONT. HIGH PRESSURE AT THE SURFACE 
THEN QUICKLY BUILDS IN FROM THE WEST TODAY.

WITH THE SUBSIDENCE BUILDING IN...SKIES WILL CLEAR WITH JUST 
SCATTERED MID LEVEL CLOUDS THIS AFTERNOON. CAA BEHIND THE COLD FRONT 
COUPLED WITH A TIGHTENING PRESSURE GRADIENT AS THE HIGH APPROACHES 
WILL LEND TO GUSTY WINDS TODAY...20-25MPH AT THE HIGHEST THIS 
AFTERNOON. 

VERY LITTLE CHANGE IN THE TEMPERATURES TODAY WITH A GENERAL 
MAV/MET/GMOS BLEND USED. WITH THE UPPER TROUGH OVER THE AREA AND A 
COOL NW FLOW...HIGHS WILL BE BELOW NORMAL...MIDDLE 60S TO LOWER 70S. 

THERE IS A MODERATE RISK OF RIP CURRENTS TODAY AT ATLANTIC OCEAN
FACING BEACHES. 

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM TUESDAY/...
PRESSURE GRADIENT SLACKENS OVERNIGHT AS HIGH PRESSURE BUILDS OVER
THE AREA. WITH MOSTLY CLEAR SKIES AND LIGHT WINDS...LOW TEMPS WILL
BE ABLE TO DROP INTO THE LOWER 40S FOR INTERIOR LOCATIONS AND
RANGE TO THE LOWER 50S NEAR THE NYC METRO...QUITE BELOW NORMAL FOR
THIS TIME OF YEAR.

EVEN WITH THE BASE OF AN UPPER TROUGH TO THE NORTH OF THE AREA ON 
TUESDAY...LITTLE MOISTURE IS IN PLACE TO PROVIDE FOR MANY CLOUDS. 
EXPECTING A MOSTLY SUNNY SKY AND LIGHT NW-N FLOW. 

MAV/MET/GMOS BLEND AGAIN WORKED WELL FOR TEMPS. HIGHS ON TUESDAY 
WILL BE NEAR TO SLIGHTLY BELOW NORMAL.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
STRONG HIGH PRESSURE BUILDS INTO THE REGION TUESDAY NIGHT AND 
WEDNESDAY...EVENTUALLY LIFTING NORTH OF THE REGION WEDNESDAY NIGHT 
AND THURSDAY. THIS HIGH WILL PROVIDE THE REGION WITH FAIR AND DRY 
CONDITIONS THROUGH THE MAJORITY OF THE LONG TERM PERIOD. 

THE 00Z MODEL GUIDANCE HAS STARTED TO HINT AT A LOW PRESSURE SYSTEM 
DEVELOPING OFF THE SOUTHEAST COAST AND PASS SOUTH AND EAST OF LONG 
ISLAND THURSDAY INTO THURSDAY NIGHT. FOR NOW...THINKING THE HIGH 
WILL BE STRONG ENOUGH TO KEEP THE PRECIPITATION ASSOCIATED WITH THIS 
LOW SOUTH OF THE REGION. 

HIGH PRESSURE RE-ESTABLISHES ITSELF BACK OVER THE REGION FOR THE END 
OF THE WEEK...WITH CONTINUED DRY CONDITIONS. 

TEMPERATURES THROUGH THE LONG TERM WILL REMAIN NEAR NORMAL THROUGH 
THURSDAY...THEN RISE ABOVE NORMAL FOR THE END OF THE WEEK AND 
WEEKEND. 

&&

.AVIATION /08Z MONDAY THROUGH FRIDAY/...
COLD FRONT PUSHES EAST EARLY THIS MORNING...WITH HIGH PRESSURE
GRADUALLY BUILDING INTO THE REGION FROM THE WEST TONIGHT.

WNW WINDS IN WAKE OF FRONT EARLY THIS MORNING...INCREASE AND
BECOME GUSTY AFTER DAYBREAK WITH ISOLD GUSTS TO 30KT. WINDS
GENERALLY WILL WAVER BETWEEN 290 AND 320 MAG DURING THE DAY. FOR
CITY TERMINALS...WINDS SHOULD AVERAGE JUST RIGHT OF 310 MAG THIS
MORNING...THEN COULD BACK A TO LEFT OF 310 MAG AT KJFK/KEWR THIS
AFTERNOON AHEAD OF TROUGH APPROACH. WINDS AND GUST SUBSIDE THIS
EVENING...VEERING GENERALLY RIGHT OF 310 MAG.

IFR CIGS ACROSS KGON...BECOMES VFR BEHIND THE FRONT BY 08Z. A FEW
-SHRA WITH FRONT. OTHERWISE...VFR TODAY WITH SCT-BKN 4-5KFT CU
THIS AFTERNOON.

.OUTLOOK FOR 06Z TUE THROUGH THU...
.LATE MON NIGHT...VFR. NW WINDS DIMINISHING.
.TUE...VFR WITH LGT WINDS.
.WED...MVFR CIGS AROUND 3000FT POSSIBLE. ENE WINDS 5-15KT.
.THU...VFR WITH LGT NE FLOW.

&&

.MARINE...
WAVEWATCH IS CURRENTLY 2-3 FT TOO HIGH WITH BOTH WAVE HEIGHTS AND
SWELL...WITH THE SWELL PEAKING THROUGH ABOUT 12Z TODAY. SEAS WILL
STILL INCREASE THROUGH THE AFTERNOON WITH OCEAN SEAS REACHING
6-8FT BY 18Z AS AN OFFSHORE LOW CONTINUES TO TRACK NORTHEAST AWAY
FROM THE AREA. WIND ALSO INCREASES THIS AFTERNOON BEHIND A COLD
FRONT AND GUSTS TO 25KT ARE EXPECTED ON THE OCEAN WATERS. NO
CHANGES WERE MADE TO THE EXISTING SCA IN PLACE. OCCASIONAL GUSTS
TO 25 KT ARE ALSO POSSIBLE ON THE OTHER WATERS BUT CONFIDENCE TOO
LOW TO ISSUE A SCA.

SEAS DECREASE THROUGH THE NIGHT WITH WINDS AND WAVES FALLING BELOW 
SCA CRITERIA BY TUESDAY MORNING. CONDITIONS WILL REMAIN BELOW
SMALL CRAFT LEVELS ON WEDNESDAY. MODEL GUIDANCE IS SHOWING THE
POSSIBILITY OF A DEVELOPING LOW PRESSURE SYSTEM DEVELOPING WELL
SOUTH OF OUR WATERS AND PASSING SOUTH AND EAST OF LONG ISLAND
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT.

THERE IS SOME UNCERTAINTY TO THE INTENSITY AND TRACK OF THE LOW. 
GUIDANCE IS INDICATING A STRONG PRESSURE GRADIENT BETWEEN THE LOW AND 
HIGH PRESSURE NORTH OF THE REGION...WHICH SHOULD BUILD SEAS TO 
SMALL CRAFT LEVELS. HAVE UNDERCUT WAVEWATCH BY A LITTLE DUE TO THE 
UNCERTAINTY OF THIS EVENT. 

SUB-SCA CONDITIONS RETURN FOR THE WEEKEND.




&&

.HYDROLOGY...
DRY CONDITIONS EXPECTED THROUGH THE WEEKEND. 


&&

.OKX WATCHES/WARNINGS/ADVISORIES...
CT...NONE.
NY...NONE.
NJ...NONE.
MARINE...SMALL CRAFT ADVISORY UNTIL 8 PM EDT THIS EVENING FOR ANZ355.
     SMALL CRAFT ADVISORY UNTIL 6 AM EDT TUESDAY FOR ANZ350-353.

&&

$$
SYNOPSIS...BC/LN
NEAR TERM...LN
SHORT TERM...LN
LONG TERM...BC
AVIATION...NV
MARINE...BC/LN
HYDROLOGY...LN









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