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WeatherMatrix
© 2002 WeatherMatrix.Net - Redistribution
Prohibited. Usage logged.
From: Jesse Ferrell (WeatherMatrix) (jesse{at}weathermatrix.net)
Date: Thu Oct 30 2003 - 20:38:09 EST
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE UPTON NY
...A WEAK F0 TORNADO TOUCHED DOWN IN THE BULLSHEAD AREA OF STATEN
ISLAND LATE MONDAY AFTERNOON...
A WEAK TORNADO DEVELOPED ALONG THE LEADING EDGE OF A LINE OF HEAVY
SHOWERS AND THUNDERSTORMS DURING MONDAY AFTERNOON...OCTOBER 27TH...
IN THE BULLSHEAD AREA OF STATEN ISLAND.
THE NATIONAL WEATHER SERVICE SKYWARN COORDINATOR FOR NEW YORK CITY
AND A REPRESENTATIVE FROM THE NEW YORK CITY OFFICE OF EMERGENCY
MANAGEMENT VISITED THE BULLSHEAD AND WILLOWBROOK AREAS THIS MORNING.
THEY PERFORMED A DAMAGE ASSESSMENT OF BOTH AREAS.
IN THE BULLSHEAD AREA...THEY OBSERVED ROTATIONAL TREE DAMAGE ON
MORANI AND LEONA STREETS...BOUND BY RICHMOND AVE. TO THE WEST AND
VICTORY BLVD. TO THE EAST. AT LEAST 8 TREES WERE UPROOTED AND 2
OTHERS DAMAGED. SOME ALUMINUM SIDING WAS RIPPED OFF THE SIDES OF
2 HOUSES. A METEOROLOGIST OBSERVED THAT THE REAR END OF TWO CARS
MOVED FROM THEIR PARKED POSITION INTO THE MIDDLE OF THE ROAD. AN
EYEWITNESS ACTUALLY SAW A TORNADO FROM HIS DRIVEWAY IN THIS AREA
BETWEEN 420 AND 425 PM. THE DAMAGE OCCURRED IN A 1 TO 2 BLOCK AREA.
BASED ON THIS INFORMATION...THE NATIONAL WEATHER SERVICE HAS
CLASSIFIED THIS AS AN F0 TORNADO...WITH AN ESTIMATED PATH WIDTH OF
50 FEET...A PATH LENGTH OF ONE TENTH OF A MILE...AND ESTIMATED WIND
SPEEDS OF AROUND 70 MPH. THE LAST TORNADO TO HIT STATEN ISLAND WAS
AN F1 TORNADO ON OCTOBER 28TH OF 1995 AT 545 AM.
IN THE WILLOWBROOK AREA...THEY OBSERVED TREE DAMAGE ON BUCHANAN AVE.
NEAR THE INTERSECTION OF WESTWOOD AVE. AT 391 BUCHANAN AVE...A 30
FOOT PINE TREE WAS DOWNED AND ANOTHER TREE WAS UPROOTED. AN
EYEWITNESS AT 396 BUCHANAN AVE. SAW A SWIRLING COLUMN OF AIR AT 428
PM...THAT LASTED ABOUT 10 SECONDS AND MOVED NORTHEAST. BASED ON
MINIMAL DAMAGE THAT OCCURRED...THIS HAS BEEN CLASSIFIED AS A
GUSTNADO.
GUSTNADOES ARE SMALL VORTICES WHICH SOMETIMES FORM ALONG STRONG GUST
FRONTS. THEY ARE SMALLER VORTICES THAN TORNADOES...BUT THEY CAN
CAUSE SIGNIFICANT DAMAGE TO LIGHTWEIGHT STRUCTURES AND TREES.
ATMOSPHERIC ENVIRONMENTAL CONDITIONS WERE FAVORABLE FOR THE
DEVELOPMENT OF GUSTNADOES AND WEAK TORNADOES. LOW LEVEL WIND SHEAR
WAS STRONG AHEAD OF THE APPROACHING COLD FRONT. SOUTH WINDS AT THE
SURFACE RAPIDLY INCREASED AS THEY BECAME SOUTHWEST ABOVE THE
SURFACE. NATIONAL WEATHER SERVICE RADAR DID NOT DETECT A MESOCYCLONE
WITH A TORNADO OVER STATEN ISLAND AND CANNOT DETECT A GUSTNADO THAT
SPINS UP FROM THE GROUND BENEATH THE BASE OF THE CLOUD.
-- =================================================================== Jesse Ferrell - Meteorologist / Webmaster / Founder - WeatherMatrix 7000 Weather Enthusiasts Can't Be Wrong! www.weathermatrix.net[Non-text portions of this message have been removed]
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