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NOUS41 KOKX 172323 CCA
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CTZ005>012-NJZ002-004-006-103>108-NYZ067>075-078>081-176>179-151328-

PUBLIC INFORMATION STATEMENT...UPDATED TORNADO PATH LENGTH AND 
DAMAGE NARRATIVE 
NATIONAL WEATHER SERVICE NEW YORK NY 
828 PM EST SUN NOV 14 2021

...NWS DAMAGE SURVEY FOR 11/13/2021 TORNADO EVENT...

...EF1 TORNADO CONFIRMED IN SHIRLEY TO MANORVILLE, NY...

OVERVIEW...A NATIONAL WEATHER SERVICE STORM SURVEY TEAM CONFIRMED AN 
EF1 TORNADO IN SHIRLEY, NY. A TORNADO LIKELY TOUCHED DOWN JUST 
SOUTHWEST OF FRANCINE PLACE AND MASTIC BLVD, TRAVELLING EAST 
NORTHEAST ALONG THE LONG ISLAND RAILROAD TRACKS AND ADJACENT 
BACKYARDS. NUMEROUS OAK, MAPLE AND PINE TREES WERE UPROOTED AND 
LAYING IN A NORTHERLY DIRECTION. SEVERAL TREES WERE ALSO SNAPPED AT 
THE TRUNK OR HAD LARGE BRANCHES SHEARED OFF ALONG THIS PATH. IN 
ADDITION, MINOR ROOF AND SIDING DAMAGE WAS OBSERVED FOR SEVERAL 
HOUSES, AS WELL AS LEAF SPLATTER ON SOUTH AND EAST SIDES. THE DAMAGE 
SWATH AT THIS POINT WAS ONLY ABOUT 25 YARDS WIDE. THE TORNADO THEN 
HOOKED NORTHEAST OVER THE LIDL SUPERMARKET (SOUTHWESTERN CORNER OF 
THE SHOPPING CENTER COMPLEX), FLIPPING OVER A 5 TON AIR HANDLER UNIT 
ON THE ROOF, BEFORE TEARING OFF THE PARAPET AND COLLAPSING THE 
COVERED WALKWAY OF THE CHIPOTLE MEXICAN GRILL ON THE NORTHEAST 
CORNER OF THE SHOPPING CENTER. DAMAGE PATH REMAINED ABOUT 25 YARDS, 
BUT DAMAGE WAS CONSISTENT WITH EF1 WINDS OF 95 TO 105 MPH.

PUBLIC VIDEO SHOWED THE APPARENT TORNADIC CIRCULATION LIFTING 
NORTHEAST ACROSS THE INTERSECTION OF WILLIAM FLOYD PARKWAY AND 
MONTAUK HIGHWAY TOWARDS THE APPLEBEES SHOPPING CENTER, WITH DEBRIS 
BEING THROWN IN ONE DIRECTION THEN ANOTHER. SIDING AND SHINGLES FROM 
THE CHIPOTLE WERE THROWN NORTHEAST ABOUT 250 YARDS ACROSS THIS 
INTERSECTION AND INTO THE APPLEBEES SHOPPING CENTER. OTHER THAN THE 
DEBRIS, SOME SMALL TREES WERE UPROOTED IN THE PARKING LOT AND LAYING 
TO THE NORTHEAST AND FLASHING WAS RIPPED OFF THE SOUTH SIDE OF THE 
APPLESBEES AND UNOCCUPIED ADJACENT RETAIL STORE. THE TORNADIC 
CIRCULATION MAY HAVE BRIEFLY LIFTED AT THIS POINT, WITH ABOUT A 50 
YD SWATH OF 65 TO 75 MPH STRAIGHT LINE WINDS ACROSS THIS SHOPPING 
CENTER.

THE TORNADIC CIRCULATION THEN TOUCHED DOWN ONCE AGAIN TO THE 
NORTHEAST OF THE APPLEBEES SHOPPING CENTER. LIFTING THE ENTIRE ROOF 
OFF A 2 STORY MULTI FAMILY RESIDENCE ON THE CORNER OF GRAND AVENUE 
AND MCGRAW STREET. THE ROOF WAS TOSSED AS FAR AS 150 YARDS TO THE 
NORTH, INTO THE BACKYARD OF NEIGHBORING HOUSES TO THE NORTH ON GRAND 
AVENUE. ONE SECTION OF THIS ROOF, ACTUALLY IMPALED ITSELF INTO THE 
SIDE OF THE NEIGHBORING HOUSE TO THE NORTH, AND MADE SUCH A STRONG 
IMPACT THAT IT SKEWED THE VERTICAL STRUCTURE OF THAT HOUSE. BASED ON 
THE EXTENT OF STRUCTURAL DAMAGE TO THESE HOUSES, AND ADJACENT 50 YD 
SWATH OF UPROOTED, SNAPPED OR SHEARED LARGE TREES, THIS DAMAGE WAS 
CONSISTENT WITH EF1 WINDS OF AROUND 110 MPH. THE TORNADO STRENGTH 
LIKELY PEAKED AT THIS POINT. THE ENTIRETY OF THE EF1 TORNADIC DAMAGE 
PATH TO THE SOUTHWEST AND NORTHEAST OF MONTAUK HIGHWAY WAS AROUND 
1/4 MILE.

THE TORNADO WOULD THEN MAKE ITS WAY NORTH ACROSS SUNRISE HIGHWAY, 
SKIPPING ITS WAY NORTHEAST FOR THE NEXT 4 1/2 MILES, WITH AREAS OF 
DAMAGE CONSISTENT WITH AN EF0. ON ITS PATH IT CONTINUED NORTHEAST 
THROUGH BROOKHAVEN CALABRO AIRPORT, FLIPPING OVER OR SHIFTING A FEW 
SMALL SINGLE ENGINE PLANES. THEREAFTER IT MOVED NORTHEAST THROUGH 
PANCHO DRIVE, TITMUS DRIVE, ABBOT AVE, AND BURNEY BLVD JUST TO THE 
EAST NORTHEAST OF THE AIRPORT. SEVERAL LARGE TREES WERE UPROOTED, 
TRUNKS SNAPPED OR BRANCHES SHEARED IN AN APPROXIMATELY 50 YD PATH, 
WITH ACCOMPANYING MINOR ROOF, SIDING AND FENCING DAMAGE IN THIS 
AREA. THE TORNADO LIKELY SKIPPED NORTH TO THE INTERSECTION OF BARNES 
ROADS AND MORICHES-MIDDLE ISLAND ROAD WITH A SMALL AREA OF 
ADDITIONAL TREE DAMAGE, BEFORE MAKING A FINAL NEARLY MILE LONG AND 
50 YD WIDE TORNADO DAMAGE PATH NORTHEAST ACROSS PINE HILLS GOLF 
COURSE, AND THEN THROUGH THE NEIGBORHOODS OF FORESTON CIRCLE, EAGLE 
LANE, NESTLEDOWN AVENUE, WADING RIVER ROAD, TUPELO STREET AND THEN 
ACROSS TO THE INTERSECTION OF SILAS WOODS ROAD AND SOUTH STREET 
BEFORE FINALLY LIFTING. SEVERAL DOZENS OF LARGE HARD AND SOFT WOOD 
TREES WERE UPROOTED AND LAYING IN A NORTHERLY OR NORTHEAST 
DIRECTION, AS COMPARED TO THE EAST NORTHEAST DIRECTION OF STORM 
MOVEMENT. IN ADDITION, NUMEROUS TREE TOPS WERE COMPLETED SHEARED TO 
STUBS AND TREE TRUNKS SNAPPED. MINOR ROOF AND SIDING DAMAGE WAS 
OBSERVED FOR NUMEROUS HOUSES ALONG THIS PATH, WITH SEVERAL FENCES 
AND CHIMNEYS DESTROYED. A LARGE NORTH/SOUTH FACING CAMPER ON TUPELO 
DRIVE WAS ROLLED WESTWARD ONTO ITS SIDE. THE DESCRIBED ONE MILE 
LONG, 50 YD WIDE CONVERGENT TORNADIC DAMAGE PATTERN WAS CONSISTENT 
WITH AN EF1 TORNADO WITH 85 TO 95 MPH WINDS, AND WAS FLANKED TO THE 
SOUTHEAST BY A 500 YD PATH OF SCATTERED TREE AND POWERLINE DAMAGE 
AND MINOR STRUCTURAL DAMAGE CONSISTENT WITH 65 TO 75 MPH 
SOUTHWESTERLY STRAIGHT LINE WINDS. 

THE NWS WOULD LIKE TO THANK SUFFOLK COUNTY FIRE RESCUE AND EMERGENCY 
SERVICES, NEW YORK STATE DIVISION OF HOMELAND SECURITY AND EMERGENCY 
SERVICES LONG ISLAND SECTOR, AND NEW YORK STATE POLICE IN ASSISTING 
IN THE SURVEY AND HELPING FORMULATE THIS PRELIMINARY DAMAGE 
ASSESSMENT.

START LOCATION...SHIRLEY, SUFFOLK COUNTY, NY
END LOCATION...MANORVILLE, SUFFOLK COUNTY, NY
DATE...NOVEMBER 13, 2021
ESTIMATED TIME...3:42 PM TO 3:50 PM
MAXIMUM EF-SCALE RATING...EF1
ESTIMATED MAXIMUM WIND SPEED...110 MPH
MAXIMUM PATH WIDTH...50 YARDS 
PATH LENGTH...5.3 MILES
BEGINNING LAT/LON...40.798227, -72.871182 
ENDING LAT/LON...40.853652, -72.810073
* FATALITIES...0
* INJURIES...0

EF SCALE: THE ENHANCED FUJITA SCALE CLASSIFIES TORNADOES INTO THE
FOLLOWING CATEGORIES:

EF0...WEAK......65 TO 85 MPH
EF1...WEAK......86 TO 110 MPH
EF2...STRONG....111 TO 135 MPH
EF3...STRONG....136 TO 165 MPH
EF4...VIOLENT...166 TO 200 MPH
EF5...VIOLENT...>200 MPH

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

  US Dept of Commerce
  National Oceanic and Atmospheric Administration
  National Weather Service
  1325 East West Highway
  Silver Spring, MD 20910
  Page Author: NWSChat Administration Team
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