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Hurricane Sandy - LIVE - Meteorological Discussion


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Product: Air Force Vortex Message (URNT12 KNHC)

Transmitted: 29th day of the month at 19:46Z

Aircraft: Air Force Aircraft (Last 3 digits of the tail number are 308)

Storm Number & Year: 18L in 2012

Storm Name: Sandy (flight in the North Atlantic basin)

Mission Number: 24

Observation Number: 10

A. Time of Center Fix: 29th day of the month at 19:17:00Z

B. Center Fix Coordinates: 38°29'N 73°45'W (38.4833N 73.75W)

B. Center Fix Location: 71 miles (115 km) to the SSE (149°) from Atlantic City, NJ, USA.

C. Minimum Height at Standard Level: 870m (2,854ft) at 850mb

D. Estimated (by SFMR or visually) Maximum Surface Wind: 59kts (~ 67.9mph)

E. Location of the Estimated Maximum Surface Wind: 77 nautical miles (89 statute miles) to the NNW (348°) of center fix

F. Maximum Flight Level Wind Inbound: From 59° at 101kts (From the ENE at ~ 116.2mph)

G. Location of Maximum Flight Level Wind Inbound: 75 nautical miles (86 statute miles) to the NNW (348°) of center fix

H. Minimum Sea Level Pressure: 941mb (27.79 inHg)

I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 10°C (50°F) at a pressure alt. of 1,524m (5,000ft)

J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 19°C (66°F) at a pressure alt. of 1,527m (5,010ft)

K. Dewpoint Temp (collected at same location as temp inside eye): 17°C (63°F)

K. Sea Surface Temp (collected at same location as temp inside eye): Not Available

L. Eye Character: Not Available

M. Eye Shape: Not Available

N. Fix Determined By: Penetration, Radar, Wind, Pressure and Temperature

N. Fix Level: 850mb

O. Navigational Fix Accuracy: 0.02 nautical miles

O. Meteorological Accuracy: 1 nautical mile

Remarks Section - Remarks That Were Decoded...

Maximum Flight Level Wind: 101kts (~ 116.2mph) in the north quadrant at 18:54:00Z

Remarks Section - Additional Remarks...

FIXED NEAR TIP OF CONVECTIVE FEATURE

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Been 70-81 mph on LI so far.

Widespread 70mph over NY/NJ/MA/CT/RI

http://forecast.weat...BOX&product=PNS

http://forecast.weat...OKX&product=PNS

http://forecast.weat...on=3&glossary=0

Couple above hurricane force. NYC/LI has seen worst so far. NJ will pick up in the next 2 hours

Thanks, guys. Curious to see where the highest winds end up occurring in relation to the center's track.

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What have been the winds at official reporting stations? Any noteworthy reports?

All official stations are between 55-60mph gusts right now. Harvey Cedars mesonet station hit 75mph a little over an hour ago and Seaside Heights hit 71mph.

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"Eyewall" (for lack of a better term) appears to be becoming better defined per Dover radar, right offshore Cape May. Looks like there might be some kind of misovorticies trying to develop in there. Hopefully they fall apart before moving inland.

post-378-0-32610700-1351544752_thumb.png

458 PM EDT MON OCT 29 2012

...OCCASIONAL DAMAGING WIND GUSTS OF 70-90 MPH EXPECTED ACROSS THE

NEW YORK CITY METROPOLITAN AREA...LONG ISLAND...AND SOUTHERN

CONNECTICUT...THROUGH 8 PM...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED WINDS UP TO 110 MPH

BETWEEN 1500 AND 3000 FEET. SOME OF THESE VERY STRONG...DAMAGING

WINDS WILL OCCASIONALLY REACH THE SURFACE...PRODUCING GUSTS OF

70-90 MPH ACROSS THE NEW YORK CITY METROPOLITAN AREA...LONG

ISLAND...AND SOUTHERN CONNECTICUT THROUGH 8 PM. THE GUSTS TO THESE

LEVELS WILL BE MORE FREQUENT OVER SOUTHEASTERN CONNECTICUT AND

LONG ISLAND THAN OVER THE NEW YORK CITY METRO AREA.

GUSTS OF THIS MAGNITUDE WILL DOWN NUMEROUS TREES...INCLUDING LARGE

ONES. HIGH RISE BUILDINGS ARE ALSO SUSCEPTIBLE TO DAMAGE WITH

THESE GUSTS. PERSONS ARE URGED TO REMAIN SHELTERED IN A STURDY

BUILDING DUE TO THE THREAT OF FALLING TREES...LARGE LIMBS AND

FLYING DEBRIS.

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000

URNT12 KNHC 292106

VORTEX DATA MESSAGE AL182012

A. 29/20:51:00Z

B. 38 deg 41 min N

073 deg 57 min W

C. 850 mb 903 m

D. 69 kt

E. 197 deg 69 nm

F. 272 deg 88 kt

G. 201 deg 55 nm

H. 944 mb

I. 2 C / 1525 m

J. 19 C / 1838 m

K. 12 C / NA

L. NA

M. NA

N. 12345 / 8

O. 0.02 / 2.5 nm

P. AF308 2418A SANDY OB 17

MAX FL WIND 101 KT N QUAD 18:54:00Z

CLIMBED 1000 FT JUST PRIOR TO CTR FIX

VIGOROUS STRONG BAND OF CONVECTION VERY NEAR CTR

COLD TEMPS SOUTH OF STORM WARMED BEGINNING 30 NM SOUTH OF CTR

;

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PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE NEW YORK NY

531 PM EDT MON OCT 29 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...

..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....

..REMARKS..

0500 PM NON-TSTM WND GST EATONS NECK 40.95N 73.39W

10/29/2012 M82 MPH SUFFOLK NY MESONET

MESONET

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From Mount Holly:

SANDY IS SUCH AN ANOMALOUS SYSTEM THAT THE 12Z MODEL SUITE COMES NO

WHERE CLOSE TO RESOLVING THE TRUE INTENSITY OF THE MINIMUM CENTRAL

LOW PRESSURE. GRANTED THE MODELS, OVER THE PAST FEW DAYS, HAVE HARD

A TIME WITH THE DEEPENING OF THE MASS FIELDS, BUT GIVEN THE RECENT

SAMPLING OF THE SYSTEM THROUGH RECON FLIGHTS AND NUMEROUS EAST COAST

SOUNDINGS, THEY STILL FALL NEARLY 10MB TOO HIGH.

To the Mets on here, is the anomaly OF Sandy so extreme (-9SD from normal for MSLP for example) that the model parameters were never intended to go to those extremes?? In other words, does Sandy fall outside the yardsticks when building a model, or should every possible outcome be modeled??

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A friend of mine-- who I chased Irene with-- is out and about in W Suffolk County (on Long Island), and he's just not impressed with the winds-- says they really haven't been too strong. So the Eaton's Neck gusts are really surprising!

P.S. He has seen some downed trees and a snapped power pole.

This storm is weird. Watching both the Philly and NYC ABC stations, there are places where it is much, much, much worse than Irene. There are also places where it isn't as bad.

Different storms, different attitudes.

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A friend of mine-- who I chased Irene with-- is out and about in W Suffolk County (on Long Island), and he's just not impressed with the winds-- says they really haven't been too strong. So the Eaton's Neck gusts are really surprising!

P.S. He has seen some downed trees and a snapped power pole.

The winds, at least in NYC, are a lot more impressive now than with Irene.
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