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 182
< Previous MD         Next MD >
MD 182 graphic

   MESOSCALE DISCUSSION 0182
   NWS STORM PREDICTION CENTER NORMAN OK
   0608 PM CDT WED MAR 12 2014

   AREAS AFFECTED...PORTIONS OF VA/NC AND EASTERN MD TO DE/SOUTHERN NJ

   CONCERNING...SEVERE THUNDERSTORM WATCH 28...

   VALID 122308Z - 130045Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 28
   CONTINUES.

   SUMMARY...SEVERE THUNDERSTORM WATCH 28 CONTINUES UNTIL 02Z /10PM
   EDT/. AS A LINE OF CONVECTION SPREADS EASTWARD THIS
   EVENING...DAMAGING WINDS REMAIN A POSSIBILITY ACROSS THE NC
   PIEDMONT/NORTHEAST NC AND EASTERN VA/MD...ALONG WITH DE/SOUTHERN NJ.

   DISCUSSION...A RELATIVELY WELL-ORGANIZED LINE OF CONVECTION WILL
   CONTINUE TO MAKE A STEADY EASTWARD PROGRESSION ACROSS EASTERN
   PORTIONS OF NC/VA/MD INTO DE/SOUTHERN NJ...WITH PARTICULARLY
   WELL-ORGANIZED STRUCTURES INCLUDING EMBEDDED BOWS/LEWP ORGANIZATION
   AND CLOUD-GROUND LIGHTNING ACROSS THE NORTH-CENTRAL NC PIEDMONT/FAR
   SOUTH-CENTRAL VA AS OF 2300Z. A 53 KT WIND GUST WAS MEASURED AT
   GREENSBORO NC EARLIER /AROUND 2121Z/ WITH THIS CONVECTION. 

   CONVECTIVE LINE-PRECEDING INSTABILITY WILL REMAIN QUITE
   MARGINAL...ESPECIALLY WITH NORTHWARD EXTENT NEAR THE STEADILY
   DEEPENING SURFACE LOW ACROSS SOUTHEAST PA AND NJ AND THE STRONG
   PRIMARY PRESSURE FALL-RISE COUPLET. REGARDLESS...60S F SURFACE
   TEMPERATURES AND MIDDLE 50S F SURFACE DEWPOINTS WILL REMAIN ADEQUATE
   FOR AN ISOLATED DAMAGING WIND RISK...EVEN IN THE RELATIVE ABSENCE OF
   CLOUD-GROUND LIGHTNING...GIVEN THE STRENGTH OF THE DEEP-LAYER WIND
   FIELD. THIS IS ESPECIALLY THE CASE WITH AS MUCH AS 40-50 KT WINDS
   WITHIN THE LOWEST 2-3 KM PER REGIONAL WSR-88D VWP DATA.

   ..GUYER.. 03/12/2014


   ATTN...WFO...PHI...AKQ...MHX...LWX...RAH...

   LAT...LON   35597963 36467853 37547754 38957695 39597646 39457497
               38757494 37497597 36087637 35177831 35597963 

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: March 13, 2014
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities