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Will NYC-LI AUG/SEP Peak Of Tornado Season Be Active?


bluewave

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Be interesting to see if there is a return to tornado activity  this August and September after the last tornadoes in 2012?

 

http://www.weather.gov/okx/NewYorkTors

 

SUFFOLK 

9/15/2000
 

SUFFOLK 

7/1/2001
 

SUFFOLK 

7/1/2001

RICHMOND 

10/27/2003
 

NASSAU 

8/12/2005
 
 

NASSAU 

8/25/2006
 

SUFFOLK 

8/25/2006
 

SUFFOLK 

7/18/2007
 

KINGS

8/8/2007
 

RICHMOND 

8/8/2007
 
 

BRONX

7/25/2010
 

KINGS 

9/16/2010
 

QUEENS 

9/16/2010
 

 

QUEENS 

8/28/2011
 

SUFFOLK 

8/28/2011
 

SUFFOLK 

8/10/2012
 

QUEENS 

9/8/2012
 

KINGS 

9/8/2012
 
 
 
 

This paper describes the climatology of tornadoes around New York City (NYC) and Long Island (LI), New York, and the structural evolution of two tornadic events that affected NYC on 8 August 2007 and 16 September 2010. Nearly half (18 of 34 events from 1950 to 2010) of NYC–LI tornadoes developed between 0500 and 1300 EDT, and August is the peak tornado month as compared to July for most of the northeast United States. A spatial composite highlights the approaching midlevel trough, moderate most unstable convective available potential energy (MUCAPE), and frontogenesis along a low-level baroclinic zone. Shortly before the early morning tornadoes on 8 August 2007, a mesoscale convective system intensified in the lee of the Appalachians in a region of low-level frontogenesis and moderate MUCAPE (;1500 J kg21). Warm advection at low levels and evaporative cooling within an elevated mixed layer (EML) ahead of the mesoscale convective system (MCS) helped steepen the low-level lapse rates. Meanwhile, a surface mesolow along a quasi-stationary frontal zone enhanced the warm advection and low-level shear. The late afternoon event on 16 September 2010 was characterized by a quasi-linear convective system (QLCS) that also featured an EML aloft, a surface mesolow just west of NYC, low-level frontogenesis, and a southerly low-level jet ahead of an approaching midlevel trough. The QLCS intensified approaching NYC and generated meso- vortices as the QLCS bowed outward. These cases illustrate the benefit of high-density surface observations, terminal Doppler radars, and sounding profiles from commercial aircraft for nowcasting these events.

 

 

 

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Can anyone post the famous photo (if it is not copyrighted) of a waterspout tornado next to the Statue of Liberty on July 09, 1976,  taken by a tourist in Battery Park and which appeared on front page of the NY Daily News.    This was only days after hundreds of tall ships etc. were in the area for the Bi-Centennial.    Waterspouts also appeared off of Nortons Point, in CI.

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  • 2 weeks later...
Public Information Statement
National Weather Service New York NY
758 PM EDT WED AUG 10 2016

...Weak EF-0 Tornado Confirmed Near Mattituck in Suffolk County
New York...

Location...Mattituck in Suffolk County New York
Date...August 10 2016
Estimated Time...425 PM EDT
Maximum EF-Scale Rating...EF0
Estimated Maximum Wind Speed...70 MPH
Maximum Path Width...40 YARDS
Path Length...0.3 YARDS
* 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 weak
tornado near Mattituck in Suffolk County New York on August 10
2016.

Based on a survey conducted by an NWS Meteorologist, NWS doppler
weather radar data, emergency management, and trained Skywarn
spotters, the National Weather Service confirmed a weak EF0
tornado in Mattituck at 4:25 pm EDT this afternoon.

As a severe thunderstorm moved southeast across eastern Suffolk
County, it produced a small weak short-lived tornado in Mattituck.

Most wind damage was concentrated between Main Road and
New Suffolk Avenue close to the corridor from Cardinal Drive
southeast to Blossom Bend, where the tornado lifted before
reaching New Suffolk Avenue. Wind damage was confined mainly to
trees, where several trees were snapped in half.

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.

$$
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