

975 

WWUS20 KWNS 031818

SEL1

SPC WW 031818

CTZ000-DEZ000-MAZ000-MDZ000-MEZ000-NHZ000-NJZ000-NYZ000-PAZ000-VTZ00

0-CWZ000-040200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 391

NWS STORM PREDICTION CENTER NORMAN OK

215 PM EDT THU JUL 3 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  CONNECTICUT

  DELAWARE

  MASSACHUSETTS

  EASTERN MARYLAND

  WESTERN MAINE

  NEW HAMPSHIRE

  NEW JERSEY

  EASTERN NEW YORK

  EASTERN PENNSYLVANIA

  VERMONT

  COASTAL WATERS



* EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 215 PM UNTIL

  1000 PM EDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS

    TO 75 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE

  A TORNADO OR TWO POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80

STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH OF

BERLIN NEW HAMPSHIRE TO 35 MILES SOUTH OF WILMINGTON DELAWARE.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU1).



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 389...WW 390...



DISCUSSION...TSTMS EXPECTED TO INCREASE IN COVERAGE AND STRENGTH

WITH CONTINUED SFC HEATING E OF NNE-MOVING UPR OH VLY SHORTWAVE

TROUGH. WHILE BUOYANCY OVER THE REGION IS SLIGHTLY REDUCED COMPARED

TO YESTERDAY...SWLY DEEP SHEAR IS SOMEWHAT STRONGER. OVERALL SETUP

APPEARS FAVORABLE FOR SCTD SUSTAINED STORMS...INCLUDING OCCASIONAL

SUPERCELL STRUCTURES. THE CONVECTION WILL YIELD LOCALLY DMGG

WIND...MARGINALLY SVR HAIL...AND PERHAPS A TORNADO OR TWO...AND

SHOULD MERGE INTO SEVERAL SMALL CLUSTERS/BANDS BY LATE IN THE DAY.



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION

VECTOR 23035.





...CORFIDI

