Public Information Statement
Issued by NWS Upton, NY

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PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
555 AM EDT THU APR 28 2016

...THIS IS SEVERE WEEK AWARENESS WEEK...

THIS STATEMENT COVERS TORNADOES IN THE TRI STATE AREA.

A TORNADO IS A RAPIDLY ROTATING COLUMN OF AIR...EXTENDING DOWN
FROM A CLOUD WITH A CIRCULATION THAT REACHES THE GROUND.

TORNADOES DEVELOP FROM SEVERE THUNDERSTORMS. CLIMATOLOGICALLY...THEY
OCCUR MOST FREQUENTLY DURING THE LATE AFTERNOON AND EARLY EVENING
FROM JUNE THROUGH AUGUST. HOWEVER...THEY CAN OCCUR AT ANYTIME OF
DAY. THEY OFTEN DEVELOP AND DISSIPATE RAPIDLY.

THEIR INTENSITIES ARE USUALLY WEAK IN OUR REGION...EF 0 AND EF 1 ON
THE ENHANCED FUJITA...OR EF...SCALE...REPRESENTING WIND SPEEDS FROM
65 TO 110 MPH. THEIR PATH LENGTH AND WIDTH ARE USUALLY SMALL IN OUR
AREA AS WELL. MOST WEAK TORNADOES OCCUR WITHIN AREAS OF RAIN...
MAKING THEM DIFFICULT TO SPOT.

HOWEVER...THE AREA ON OCCASION DOES EXPERIENCE A SIGNIFICANT
TORNADO...ONE RATING EF 2 OR HIGHER. THE STRONGEST TORNADO TO IMPACT
THE TRI-STATE WAS AN F4 TORNADO WITH ESTIMATED WINDS OF 207-260 MPH
IN HAMDEN CONNECTICUT ON JULY 10 1989. AUGUST 8 2007 WAS THE LAST
TIME THERE WAS AN EF2 TORNADO IN THE TRI-STATE. THIS TORNADO MOVED
THROUGH THE BAY RIDGE SECTION OF BROOKLYN WITH ESTIMATED WINDS OF
111 TO 135 MPH.

THE NUMBER OF TORNADOES CONFIRMED BY THE NWS SINCE 1950...

12 IN NEW YORK CITY
30 ON LONG ISLAND
26 IN THE LOWER HUDSON VALLEY
40 IN SOUTHERN CONNECTICUT...AND
28 IN NORTHEASTERN NEW JERSEY.

THE NWS STORM PREDICTION CENTER IN NORMAN OKLAHOMA ISSUES TORNADO
WATCHES...WITH A LEAD TIME OF UP TO SIX HOURS. A TORNADO WATCH MEANS
THAT WEATHER CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF
TORNADOES IN AND AROUND A DEFINED AREA.

OUR NWS OFFICE IN LONG ISLAND NY ISSUES TORNADO WARNINGS USING A
COMBINATION OF WEATHER RADAR AND OBSERVATIONS FROM LAW ENFORCEMENT
AND VOLUNTEER SKYWARN SPOTTERS TO ISSUE WARNINGS. TAKE IMMEDIATE
PROTECTIVE ACTION TO SAVE YOUR LIFE.

TOMORROW WE WILL COVER FLASH FLOODS.

$$



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