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Mesoscale Discussion 1361 |
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MESOSCALE DISCUSSION 1361
NWS STORM PREDICTION CENTER NORMAN OK
0440 PM CDT WED JUN 22 2011
AREAS AFFECTED...NJ...SE NY...NEW YORK CITY...SW CT
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 222140Z - 222315Z
A SEVERE THREAT WILL MOVE EWD ACROSS NRN NJ...FAR SE NY...NEW YORK
CITY AND SRN CT OVER THE NEXT FEW HOURS. WIND DAMAGE AND HAIL WILL
BE THE PRIMARY THREATS. WW ISSUANCE REMAINS POSSIBLE ACROSS THIS
AREA LATE THIS AFTERNOON.
A CLUSTER OF SEVERE STORMS IS CURRENTLY ONGOING IN FAR ERN PA AND NJ
LOCATED A WARM FRONT AND AXIS OF MODERATE INSTABILITY. THE STORMS
ARE ASSOCIATED WITH A SUBTLE SHORTWAVE TROUGH AND SPEED MAX ANALYZED
BY THE RUC AT 700 MB FROM THE MID-ATLANTIC NEWD ALONG THE ATLANTIC
COAST INTO THE NEW YORK CITY AREA. THE SPEED MAX IS HELPING TO
ENHANCE DEEP LAYER SHEAR PROFILES WITH REGIONAL WSR-88D VWPS SHOWING
35 TO 40 KT OF 0-6 KM SHEAR. THIS SHEAR ENVIRONMENT SHOULD SUPPORT
SUPERCELL DEVELOPMENT ESPECIALLY CONSIDERING THE STORMS ARE
DISCRETE. AS THE STORMS MOVE EWD ACROSS THE NEW YORK CITY AREA LATE
THIS AFTERNOON INTO EARLY THIS EVENING...HAIL AND WIND DAMAGE WILL
BE THE PRIMARY SEVERE THREATS.
..BROYLES.. 06/22/2011
ATTN...WFO...OKX...ALY...PHI...
LAT...LON 40577330 40947300 41267294 41447307 41607359 41527424
41397462 40887500 40537512 40067513 39847500 39757487
39717440 40137387 40577330
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