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Hurricane Sandy OBS


SquatchinNY

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upton disagrees....they think strongest gusts occur when winds switch to S-SE after landfall.

Bill G on at Upton pointed that out to me this morning in another thread. I had not noticed it before that but definitely as I posted a bit earlier thats a potentially troublesome period this evening. The soundings are much more unstable but again less rain and darkness perhaps could help...could.

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Looks like a hurricane here in Colts Neck. Tremendous roaring of the trees right now. Gusted to 46mph thus far.

Same here. Gusts over 60 mph.

that is an area where the storm isnt underforming

. What were you expecting from this storm? A lot of areas are getting it hard right now. The strongest winds are yet to come.

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ALL NWP IN PRETTY CLOSE

AGREEMENT ON DEVELOPMENT AND PLACEMENT OF A BAND OF VERY STRONG

925 MB WINDS OF 70-90 KT TO THE NORTH OF THE CYCLONE BY LATE

AFTERNOON OVER OUR CWA...ESPECIALLY ACROSS COASTAL SECTIONS. A

SHALLOW MIXED LAYER BELOW THAT...IN COMBINATION WITH POSSIBLE

GRAVITY WAVE DUCTING JUST NORTH OF A WARM FRONT DEVELOPING TO THE

NORTHEAST OF SANDY...COULD ALLOW A LARGE PORTION OF THESE STRONG

WINDS TO MIX DOWN...ESPECIALLY IN HEAVIER RAIN...SO AT LEAST

OCCASIONAL GUSTS 60-75 MPH EXPECTED IN NE-E FLOW DURING MID TO

LATE AFTERNOON BEFORE THE STORM MAKES LANDFALL.

OF EVEN GREATER CONCERN IS A SECOND BAND OF FCST 925 MB WINDS OF

SIMILAR STRENGTH ON THE SE FLANK OF THE CYCLONE THAT SHOULD ROTATE

UP INTO THE CWA DURING AND JUST AFTER LANDFALL THIS

EVENING...INITIALLY IMPACTING SOUTHERN CT AND LONG ISLAND...THEN

TRANSLATING WESTWARD INTO NYC METRO AND THE LOWER HUDSON VALLEY.

STEEPENING LOW LEVEL LAPSE RATES IN THIS QUADRANT OF THE STORM

AS CAA BEGINS JUST OFF THE DECK...BUT AS LOW LEVEL WAA

CONTINUES...SHOULD LEAD TO EVEN MORE EFFICIENT MOMENTUM

TRANSFER...WITH THE STRONGEST WINDS EXPECTED ALONG THE SOUTH

SHORES OF LONG ISLAND AND CT WHERE WINDS COULD GUST 80 TO PERHAPS

90 MPH. THERE MAY BE A LOW END TORNADO THREAT ACROSS EASTERN

CT/LONG ISLAND DURING THIS TIME VIA STRONG LOW LEVEL HELICITY AND

DEVELOPMENT OF MARGINAL LOW LEVEL CAPE...NOT ENOUGH FOR THUNDER

INITIALLY BUT ENOUGH FOR LOW-TOPPED CONVECTION THAT COULD STRETCH

ROTATING UPDRAFTS AND/OR TAP INTO HIGHER MOMENTUM ALOFT.

This is why people crying bust are in for a reality check.

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ALL NWP IN PRETTY CLOSE

AGREEMENT ON DEVELOPMENT AND PLACEMENT OF A BAND OF VERY STRONG

925 MB WINDS OF 70-90 KT TO THE NORTH OF THE CYCLONE BY LATE

AFTERNOON OVER OUR CWA...ESPECIALLY ACROSS COASTAL SECTIONS. A

SHALLOW MIXED LAYER BELOW THAT...IN COMBINATION WITH POSSIBLE

GRAVITY WAVE DUCTING JUST NORTH OF A WARM FRONT DEVELOPING TO THE

NORTHEAST OF SANDY...COULD ALLOW A LARGE PORTION OF THESE STRONG

WINDS TO MIX DOWN...ESPECIALLY IN HEAVIER RAIN...SO AT LEAST

OCCASIONAL GUSTS 60-75 MPH EXPECTED IN NE-E FLOW DURING MID TO

LATE AFTERNOON BEFORE THE STORM MAKES LANDFALL.

OF EVEN GREATER CONCERN IS A SECOND BAND OF FCST 925 MB WINDS OF

SIMILAR STRENGTH ON THE SE FLANK OF THE CYCLONE THAT SHOULD ROTATE

UP INTO THE CWA DURING AND JUST AFTER LANDFALL THIS

EVENING...INITIALLY IMPACTING SOUTHERN CT AND LONG ISLAND...THEN

TRANSLATING WESTWARD INTO NYC METRO AND THE LOWER HUDSON VALLEY.

STEEPENING LOW LEVEL LAPSE RATES IN THIS QUADRANT OF THE STORM

AS CAA BEGINS JUST OFF THE DECK...BUT AS LOW LEVEL WAA

CONTINUES...SHOULD LEAD TO EVEN MORE EFFICIENT MOMENTUM

TRANSFER...WITH THE STRONGEST WINDS EXPECTED ALONG THE SOUTH

SHORES OF LONG ISLAND AND CT WHERE WINDS COULD GUST 80 TO PERHAPS

90 MPH. THERE MAY BE A LOW END TORNADO THREAT ACROSS EASTERN

CT/LONG ISLAND DURING THIS TIME VIA STRONG LOW LEVEL HELICITY AND

DEVELOPMENT OF MARGINAL LOW LEVEL CAPE...NOT ENOUGH FOR THUNDER

INITIALLY BUT ENOUGH FOR LOW-TOPPED CONVECTION THAT COULD STRETCH

ROTATING UPDRAFTS AND/OR TAP INTO HIGHER MOMENTUM ALOFT.

Until we get some honest rain bands set up I have a hard time believing this LLJ hype. it hasn't happened in past noreasters where we've been promised hurricane force winds.

Also I'd like to add first hurricane force wind gust in NJ at Harvey Cedars at 3:55 with a 75mph gust.

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Please, stop. I'm on a phone so I can't report you, but I'll take the word of trained mets over you.

Until we get some honest rain bands set up I have a hard time believing this LLJ hype. it hasn't happened in past noreasters where we've been promised hurricane force winds.

Also I'd like to add first hurricane force wind gust in NJ at Harvey Cedars at 3:55 with a 75mph gust.

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From okx on social media:

Some hurricane force wind gusts being reported near the Long Island coast. 81 MPH at Plum Island and 74 MPH at Eatons Neck. A 70 MPH wind gust was recently reported at Groton, CT and Stonington, CT. Expect these wind gusts to continue and also increase across Long Island, southern Connecticut, NYC, NE NJ and the Lower Hudson Valley.

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Not a bad estimate..maybe a little north of there...but contrary to the belief of some posters it has little to no effect on what happens in NYC whether she makes landfall in ACY or a little south of there.

It does with rain John. If the landfall was up towards Sandy Hook, like models has a couple days ago, we would've had the rain as well.

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Thank you....Ditto in my area. I dont think ive seen, heard, felt anything near 60MPH gusts...there arent even branches down here...

I think its too early to say this before the evening. Picking up here big time and power outagesd are growing. The surge is starting to build into NY Harbor. The harbor is in condition zulu (closed) till wed morning the earliest

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Not a bad estimate..maybe a little north of there...but contrary to the belief of some posters it has little to no effect on what happens in NYC whether she makes landfall in ACY or a little south of there.

100 percent disagree, if it made landfall in sandy hook vs cape may its a world of difference in sensible weather for NYC

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SREFs just went bonkers with sustained 10m winds after the SE wind shift...over 50mph on many models and the mean between 40 and 50 mph. Terrible news for mostly everyone given the soundings showing better ability to mix and momentum transfer...and the timing of these southeast gales into NY Harbor and S Long Island at high tide.

f09.gif

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