New York City Weather Event September 16 2010

NOUS41 KOKX 202102 AAA
PNSOKX
CTZ005>012-NJZ002>006-011-NYZ067>081-222315-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
500 PM EDT MON SEP 20 2010

...TWO TORNADOES AND A MACROBURST CONFIRMED ON SEPTEMBER 16 2010...

...TORNADO CONFIRMED ACROSS NORTHERN BROOKLYN (KINGS COUNTY) NY...

LOCATION...PARK SLOPE IN BROOKLYN (KINGS COUNTY) NY
DATE...SEPTEMBER 16 2010
ESTIMATED TIME...5:33 PM EDT
MAXIMUM EF-SCALE RATING...EF0
ESTIMATED MAXIMUM WIND SPEED...80 MPH
MAXIMUM PATH WIDTH...75 YARDS
PATH LENGTH...2 MILES
BEGINNING LAT/LON...40.67 N / 73.99 W
ENDING LAT/LON...40.69 N /73.96 W
* FATALITIES...0
* INJURIES...0

* THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO
CHANGE PENDING FINAL REVIEW OF THE EVENT(S) AND PUBLICATION IN NWS
STORM DATA.

...SUMMARY...
THE NATIONAL WEATHER SERVICE IN NEW YORK NY HAS CONFIRMED A TORNADO
NEAR PARK SLOPE (BROOKLYN) IN KINGS COUNTY NY ON SEPTEMBER 16 2010.

IN THE NORTHERN PORTION OF PROSPECT PARK...THERE WERE SIGNS OF TREE
DAMAGE THAT CONVERGED TOWARD A WELL DEFINED NARROW PATH. TREE TOPS WERE
TWISTED AND SHEARED OFF. THIS LOCATION WAS BOUNDED BY PROSPECT PARK
WEST...FLATBUSH AVENUE ON THE EAST AND SUBWAY GRAND ARMY PLAZA TO
THE NORTH. THE TORNADO APPEARED TO FORM JUST SOUTHWEST OF THE BROOKLYN
PUBLIC LIBRARY AND LIFTED AROUND 2 MILES NORTHEAST OF PARK SLOPE.

THE TORNADO TRACK WAS BASED ON RADAR SIGNATURES...DAMAGE REPORTS PROVIDED
BY THE NYC OFFICE OF EMERGENCY MANAGEMENT...EYEWITNESS OBSERVATIONS
AND PUBLIC VIDEOS.

THIS INFORMATION CAN ALSO BE FOUND ON OUR WEBSITE AT WEATHER.GOV/NYC.

FOR REFERENCE...THE ENHANCED FUJITA SCALE CLASSIFIES TORNADOES INTO
THE FOLLOWING CATEGORIES:

EF0...WIND SPEEDS 65 TO 85 MPH.
EF1...WIND SPEEDS 86 TO 110 MPH.
EF2...WIND SPEEDS 111 TO 135 MPH.
EF3...WIND SPEEDS 136 TO 165 MPH.
EF4...WIND SPEEDS 166 TO 200 MPH.
EF5...WIND SPEEDS GREATER THAN 200 MPH.

&&

...TORNADO CONFIRMED ACROSS NORTHEAST QUEENS COUNTY NY...

LOCATION...FROM SOUTH OF FLUSHING NORTHEAST ACROSS BAYSIDE
DATE...SEPTEMBER 16 2010
ESTIMATED TIME...5:42 PM EDT
MAXIMUM EF-SCALE RATING...EF1
ESTIMATED MAXIMUM WIND SPEED...100 MPH
MAXIMUM PATH WIDTH...100 YARDS
PATH LENGTH...4 MILES
BEGINNING LAT/LON...40.74 N / 73.84 W
ENDING LAT/LON...40.80 N / 73.76 W
* FATALITIES...1
* INJURIES...1

* THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO
CHANGE PENDING FINAL REVIEW OF THE EVENT(S) AND PUBLICATION IN NWS
STORM DATA.

...SUMMARY...
THE NATIONAL WEATHER SERVICE IN NEW YORK NY HAS CONFIRMED A TORNADO
NEAR FLUSHING/BAYSIDE IN QUEENS COUNTY NY ON SEPTEMBER 16 2010.

IN FLUSHING...

ON BOWNE STREET BETWEEN ROOSEVELT AND 38TH AVENUES...THE THIRD
FLOOR OF A RESIDENTIAL BRICK BUILDING WAS SEVERELY DAMAGED
STRUCTURALLY. LARGE TREE TOPS WERE LYING ON TOP OF BUILDINGS AND
SHOT LIKE PROJECTILES BETWEEN BUILDINGS. SIDES OF HOUSES WERE
PEELED BACK. THERE WAS CLEAR EVIDENCE OF TWISTED METAL ALONG THE
SIDE OF THE BUILDING.

ON WARREN STREET NEAR THE INTERSECTION OF ROOSEVELT AVENUE...A
STEEL FRAMED WATER TOWER WAS BLOWN OVER ON THE ROOF. THERE WAS A
PARTIAL ROOF COLLAPSE ON ANOTHER RESIDENTIAL BUILDING.

BASED ON RADAR SIGNATURES...DAMAGE REPORTS PROVIDED BY THE NYC OFFICE
OF EMERGENCY MANAGEMENT...EYEWITNESS OBSERVATIONS AND PUBLIC VIDEOS...
THE TORNADO TOUCHED DOWN AROUND 2 1/2 MILES SOUTH OF FLUSHING AND LIFTED
1 MILE NE OF BAYSIDE OVER LITTLE NECK BAY.

THIS INFORMATION CAN ALSO BE FOUND ON OUR WEBSITE AT WEATHER.GOV/NYC.

FOR REFERENCE...THE ENHANCED FUJITA SCALE CLASSIFIES TORNADOES INTO
THE FOLLOWING CATEGORIES:

EF0...WIND SPEEDS 65 TO 85 MPH.
EF1...WIND SPEEDS 86 TO 110 MPH.
EF2...WIND SPEEDS 111 TO 135 MPH.
EF3...WIND SPEEDS 136 TO 165 MPH.
EF4...WIND SPEEDS 166 TO 200 MPH.
EF5...WIND SPEEDS GREATER THAN 200 MPH.

&&

...MACROBURST /STRAIGHT LINE WIND DAMAGE/ CONFIRMED NEAR
MIDDLE VILLAGE AND FOREST HILLS IN QUEENS COUNTY NY...

LOCATION...MIDDLE VILLAGE/FOREST HILLS IN QUEENS COUNTY NY
DATE...SEPTEMBER 16 2010
ESTIMATED TIME...5:40 PM EDT
ESTIMATED MAXIMUM WIND SPEED...125 MPH
MAXIMUM PATH WIDTH...5 MILES
PATH LENGTH...8 MILES
* FATALITIES...0
* INJURIES...0

* THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO
CHANGE PENDING FINAL REVIEW OF THE EVENT(S) AND PUBLICATION IN NWS
STORM DATA.

...SUMMARY...
THE NATIONAL WEATHER SERVICE IN NEW YORK NY HAS CONFIRMED A
MACROBURST /STRAIGHT LINE WIND DAMAGE/ NEAR MIDDLE VILLAGE IN QUEENS
COUNTY NY ON SEPTEMBER 16 2010.

THE PATH OF THE MACROBURST WAS FROM MIDDLE VILLAGE TO FOREST HILLS.

IN FOREST HILLS...

AT MACDONALD PARK...A FIELD OF TREES WERE SHEARED OFF WHICH COMPLETELY
DEMOLISHED THIS PARK. MANY WHOLE TREES AND LARGE BRANCHES WERE DOWNED
IN A DIVERGENT PATTERN. THIS WAS A CLEAR SIGNATURE OF MACROBURST WIND
DAMAGE. THIS AREA WAS BOUNDED BY QUEENS BLVD. AND 69TH ROAD TO THE NORTHEAST
NEAR THE INTERSECTION OF YELLOWSTONE BLVD.

JUST SOUTHWEST OF THE LONG ISLAND EXPRESSWAY ALONG 63RD AVENUE AND NEAR
THE INTERSECTIONS OF REEVES AVENUE AND 146TH STREET AND PLACE...MANY
HUGE HEALTHY 36 INCH DIAMETER TREES FELL IN NEARLY THE SAME DIRECTION
IN NARROW ROADS. DOWNED TREES DESTROYED MANY CARS AND MADE ENTRIES TO
HOUSES IMPASSABLE. WIDESPREAD TREE DAMAGE MADE MANY SECONDARY AND TERTIARY
ROADS IMPASSABLE.

MANY WHOLE TREES AND LARGE BRANCHES WERE DOWNED NEAR QUEENS COLLEGE...
ALONG DARTMOUTH STREET IN FOREST HILLS GARDEN AND ALONG PARK DRIVE
EAST IN KEW GARDEN HILLS.

THIS INFORMATION CAN ALSO BE FOUND ON OUR WEBSITE AT WEATHER.GOV/NYC.

FOR REFERENCE...
A MACROBURST IS A CONVECTIVE DOWNDRAFT WITH AN AFFECTED OUTFLOW AREA
OF AT LEAST 2 1/2 MILES WIDE AND PEAK WINDS LASTING BETWEEN 5 AND 20
MINUTES. INTENSE MACROBURSTS MAY CAUSE TORNADO-FORCE DAMAGE OF UP TO
EF3 INTENSITY. STRAIGHT-LINE WINDS ARE GENERALLY ANY WIND THAT IS
NOT ASSOCIATED WITH ROTATION...USED MAINLY TO DIFFERENTIATE THEM
FROM TORNADIC WINDS.

&&

THIS WAS A WIDESPREAD SIGNIFICANT SEVERE WEATHER EVENT THAT IMPACTED
PARTS OF METRO NEW JERSEY...NEW YORK CITY...WESTERN LONG ISLAND AND
SOUTHWEST AND SOUTH CENTRAL CONNECTICUT.

IT WAS NOT POSSIBLE FOR THE NATIONAL WEATHER SERVICE TO VISIT ALL
IMPACTED AREAS. AS A LINE OF SEVERE THUNDERSTORMS SWEPT EAST ACROSS
THE REGION...HIGH WINDS ALSO PRODUCED WIND DAMAGE ACROSS PARTS OF
BOTH NORTHERN AND SOUTHERN STATEN ISLAND...FAIRFIELD AND NEW HAVEN
COUNTIES IN CONNECTICUT AND IN NASSAU COUNTY NY.

THE NATIONAL WEATHER SERVICE THANKS THE NYC OFFICE OF EMERGENCY
MANAGEMENT FOR ALL OF THEIR SUPPORT INCLUDING THE PROVISION OF
COORDINATION...CONDUCT AND SECURITY CLEARANCE FOR THE NWS TO
COMPLETE THIS SURVEY.

$$

38/02