

429 

WWUS20 KWNS 132228

SEL5

SPC WW 132228

CTZ000-MAZ000-NYZ000-140300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 415

NWS STORM PREDICTION CENTER NORMAN OK

625 PM EDT SUN JUL 13 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTHERN CONNECTICUT

  SOUTHWEST MASSACHUSETTS

  SOUTHEASTERN NEW YORK



* EFFECTIVE THIS SUNDAY EVENING FROM 625 PM UNTIL 1100 PM EDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 85

STATUTE MILES EAST AND WEST OF A LINE FROM 5 MILES EAST OF

PITTSFIELD MASSACHUSETTS TO 10 MILES SOUTHWEST OF POUGHKEEPSIE

NEW YORK.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 413...WW 414...



DISCUSSION...SMALL TSTM CLUSTERS /CONTAINING A COUPLE SUSTAINED

STORMS OR WEAK SUPERCELLS/ EXPECTED TO PERSIST IN ZONE OF ENHANCED

LOW-LVL MOISTURE RETURN/SFC PRESSURE FALLS OVER THE LWR HUDSON VLY.

GIVEN PERSISTENCE OF EXISTING STORMS...MODERATE WLY DEEP SHEAR...AND

BACKED NEAR-SFC FLOW IN THE HUDSON AND CT RVR VLYS...POTENTIAL WILL

EXIST FOR LOCALLY DMGG WIND AND PERHAPS A TORNADO OR TWO THROUGH

MID-EVE.

A SECOND WAVE OF STORMS EVOLVING OVER NRN PA OR S CNTRL NY COULD

AFFECT WRN PARTS OF THE WATCH LATER THIS EVE.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION

VECTOR 27030.





...CORFIDI

