Skip Navigation Links weather.gov 
NOAA logo-Select to go to the NOAA homepage NOAA's National Weather Service   Select to go to the NWS homepage
Storm Prediction Center
navigation bar left  
  navigation bar end cap


 
USA.gov is the U.S. Government's official Web portal to all Federal, state and local government Web resources and services.

Mesoscale Discussion 1665
< Previous MD         Next MD >
MD 1665 graphic

   MESOSCALE DISCUSSION 1665
   NWS STORM PREDICTION CENTER NORMAN OK
   0529 PM CDT TUE SEP 02 2014

   AREAS AFFECTED...ERN PENNSYLVANIA...NEW JERSEY...SERN NEW YORK

   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 

   VALID 022229Z - 030000Z

   PROBABILITY OF WATCH ISSUANCE...40 PERCENT

   SUMMARY...BRIEF VIGOROUS THUNDERSTORM ACTIVITY COULD IMPACT MUCH OF
   THE URBAN CORRIDOR FROM PHILADELPHIA TO NEW YORK CITY BETWEEN NOW
   AND 00-02Z.  THE ENVIRONMENT SEEMS ONLY MARGINALLY CONDUCIVE...AT
   BEST...TO SEVERE WIND GUSTS...BUT OCCASIONAL STRONG GUSTS COULD
   NEVERTHELESS PRODUCE LOCALIZED WIND DAMAGE.

   DISCUSSION...THE LEADING EDGE OF CONVECTIVE OUTFLOW ADVANCING
   NORTHEAST OF THE CENTRAL APPALACHIANS REMAINS A FOCUS FOR RENEWED
   THUNDERSTORM DEVELOPMENT IN THE PRESENCE OF WEAK CONDITIONAL
   INSTABILITY AND 30-40 KT SOUTHWESTERLY LOWER/MID TROPOSPHERIC FLOW. 
   ALTHOUGH SUBSTANTIVE UPSCALE GROWTH OF ACTIVITY CURRENTLY SEEMS
   UNLIKELY...AT LEAST A NARROW LINE OF STORMS MAY CONTINUE TO EVOLVE
   DURING THE NEXT FEW HOURS.  THIS ACTIVITY COULD IMPACT MUCH OF THE
   PHILADELPHIA METROPOLITAN AREA WITH CLOUD TO GROUND
   LIGHTNING...BRIEF HEAVY RAIN AND GUSTY WINDS SHORT AFTER 23Z...AND
   PERHAPS THE GREATER NEW YORK CITY AREA NEAR/SHORTLY AFTER 01Z.

   ..KERR/EDWARDS.. 09/02/2014


   ATTN...WFO...OKX...ALY...PHI...BGM...CTP...LWX...

   LAT...LON   41567655 41957612 42137471 41477357 40777329 39397448
               39207570 39457622 39907603 40807616 41567655 

Top/All Mesoscale Discussions/Forecast Products/Home
Weather Topics:
Watches, Mesoscale Discussions, Outlooks, Fire Weather, All Products, Contact Us

NOAA / National Weather Service
National Centers for Environmental Prediction
Storm Prediction Center
120 David L. Boren Blvd.
Norman, OK 73072 U.S.A.
spc.feedback@noaa.gov
Page last modified: September 02, 2014
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities