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hurricane sandy thread #2


forkyfork

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The duration of the storm is very concerning, Nam looks a bit slower but it is the Nam, it's still outside of its accurate window but it doesn't look too shabby compared to the other models right now. Looking more likely that Sandy will move further east initially before sharply hooking back left, scary stuff.

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I'm shocked that they shifted the track so far West. They really are hugging those tropical models tightly. None of the globals are as far south as this latest track. This is even well south of the 12z ECMWF track. Assuming that the track is nearly a straight line from VA beach to Baltimore.

205618W5_NL_sm.gif

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NAM looks like a landfall in central Suffolk County. But it goes waaaaay out there before getting captured. Crazy winds for all of Long Island/NYC it seems on this run, plus deluging rain.

NAM looks like a pitcher with a hell of a curve ball

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Wow... Snippet from Upton's most recent AFD:

CONFIDENCE CONTINUES TO INCREASE THAT THE LOCAL AREA WILL BE

AFFECTED BY SIGNIFICANT IMPACTS FROM SANDY. THE HURRICANE MODELS

CONTINUE A CONCENTRATED CLUSTERING OF LANDFALL BETWEEN EASTERN

LONG ISLAND TO THE TIP OF THE DELMARVA PENINSULA...WITH THE 12Z/26

OPERATIONAL MODEL CLUSTERING ON LANDFALL FROM NYC TO SE NEW

ENGLAND...AND 12Z GEFS FAIRLY TIGHTLY CLUSTERED FROM SOUTHERN NJ TO

EASTERN LI WITH LANDFALL. THE MODELS VARY IN TIMING OF LANDFALL

BETWEEN MONDAY AND TUESDAY.

HAVE KEPT TIMING AND TRACK OF FORECAST CONSISTENT THE LATEST NHC

GUIDANCE...TAKING THE CENTER OF SANDY INTO THE SOUTHERN

NJ/DELMARVA COAST LATE MON NIGHT/TUE MORNING...WITH THE STORM

EXPECTED TO BE TRANSITIONING TO A DANGEROUS POST-TROPICAL BY THE

TIME OF LANDFALL. IT HAS TO BE EMPHASIZED...THAT ALTHOUGH THE

STORM IS EXPECTED TO TRANSITION TO POST-TROPICAL BEFORE

LANDFALL...IT WILL BE A LARGE AND DANGEROUS STORM FOR THE

NORTHEAST/MID ATLANTIC.

BASED ON ABOVE...CONFIDENCE IS INCREASING IN SIGNIFICANT IMPACTS

TO THE REGION...IN THE FORM OF HEAVY RAINFALL AND RESULTANT

URBAN...SMALL STREAM...AND RIVER FLOODING...HIGH WINDS CAUSING

WIDESPREAD DOWNING OF TREES AND POWER LINES...AND SIGNIFICANT

SHORELINE IMPACTS FROM COASTAL FLOODING AND BEACH EROSION.

IN TERMS OF SENSIBLE WEATHER...THE LIKELIHOOD FOR RAIN IS EXPECTED

TO INCREASE FROM SW TO NE DURING THE DAY SUNDAY AS WE BEGIN TO SEE A

GRADUAL INCREASE IN MOISTURE INFLUX AND DEEP LAYERED LIFT. THE

WINDOW FOR HEAVIEST RAIN IS STILL A BIT UNCERTAIN AS IT WILL DEPEND

ON EXACT TIMING AND TRACK OF THE SANDY AND INTERACTION WITH INTENSE

JET/SHORTWAVE ENERGY...BUT SEVERAL INCHES OF RAIN ARE POSSIBLE

ANYWHERE FROM SUNDAY NIGHT THROUGH TUESDAY. SEE THE HYDROLOGY

SECTIONS FOR MORE ON THE FLOODING POTENTIAL. AS FOR WINDS...THEY

INCREASE FROM THE E/NE ON SUNDAY BETWEEN SANDY AND HIGH PRESSURE

TO THE N. WINDS OF 15 TO 25 MPH AND GUSTS WELL INTO THE 30S ARE

LIKELY BY SUNDAY AFTERNOON AND THEN CONTINUING INTO MONDAY. THE

STRONGEST WINDS WILL BE COINCIDENT WITH THE CLOSEST APPROACH AND

LANDFALL OF SANDY...LATE MONDAY THROUGH TUE...WITH THE POTENTIAL

FOR SPEEDS OF 40-50G70-80MPH...SLIGHTLY HIGHER IN ELEVATED

LOCATIONS. IF THESE WINDS ARE REALIZED...THE COMBINATION OF EVENT

DURATION...SATURATED GROUNDS...AND PARTIAL TO FULL FOLIAGE

TREES...WOULD CAUSE WIDESPREAD DOWNING OF TREES AND POWER

LINES...CAUSING DISRUPTION TO POWER AND POSSIBLY TRANSIT FOR

SEVERAL DAYS. THESE WINDS WILL ALSO RESULT IN SIGNIFICANT COASTAL

IMPACTS...DETAILED IN THE TIDES AND COASTAL FLOODING SECTIONS.

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I don't think it's that far south. It would mean a landfall just south of Cape May or Delaware...similar to 11am advisory

I'm shocked that they shifted the track so far West. They really are hugging those tropical models tightly. None of the globals are as far south as this latest track. This is even well south of the 12z ECMWF track. Assuming that the track is nearly a straight line from VA beach to Baltimore.

205618W5_NL_sm.gif

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I'm shocked that they shifted the track so far West. They really are hugging those tropical models tightly. None of the globals are as far south as this latest track. This is even well south of the 12z ECMWF track. Assuming that the track is nearly a straight line from VA beach to Baltimore.

Exactly that map makes it kind of hard to tell where landfall would occur. As you stated if we assume that track is a straight line then it seems so far south. Perhaps they drew it that way as they may not have full confidence on the exact landfall position (nor should we this early in such a complex storm setup)

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Up here its extremely saturated.. We haven't seen the sun in a week and every night has been misty w/ on and off lgt rain. Long duration would matter simply cause the longer the winds are "high" the longer it will take for them to start repairs. They will NOT attempt restorations during the storm.

The misty rain couldn't possibly have anywhere near the effect of the pre-Irene rains last August, or for that matter the pre-October blizzard rains for the preceding two and one half months. KNYC had close to 40" of rain, including the October blizzard, between approximately August 7, 2011 and October 31, 2011. Thankfully, the period since then has been pretty dry.
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