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 1073
< Previous MD         Next MD >
MD 1073 graphic

   MESOSCALE DISCUSSION 1073
   NWS STORM PREDICTION CENTER NORMAN OK
   0806 PM CDT WED JUN 18 2014

   AREAS AFFECTED...WRN/CNTRL PA...SRN/ERN OH...NRN WV...MD
   PANHANDLE...EXTREME NRN VA...FAR NERN KY

   CONCERNING...SEVERE THUNDERSTORM WATCH 326...

   VALID 190106Z - 190200Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 326
   CONTINUES.

   SUMMARY...SEMI-ORGANIZED CONVECTIVE LINE CONTINUES TO PROGRESS EWD
   ACROSS OH AND WRN PA...WITH ISOLATED DISCRETE TSTM DEVELOPMENT
   OCCURRING AHEAD OF THE LINE. PRIMARY THREAT APPEARS TO BE DMGG WIND
   GUSTS...WHILE HAIL MAY ALSO ACCOMPANY THE MORE DISCRETE ACTIVITY. A
   NEW DOWNSTREAM WW MAY BE NEEDED WITHIN THE NEXT HR TO INCLUDE PARTS
   OF NRN WV...CNTRL PA...THE MD PANHANDLE...AND EXTREME NRN VA.

   DISCUSSION...RECENT RADAR MOSAIC IMAGERY SHOWS SEMI-CONTINUOUS
   CONVECTIVE LINE AND ACCOMPANYING COLD POOL EXTENDING FROM NEAR LUK
   NEWD TO FKL AS OF 0045Z. OBSERVATIONS SUGGEST STRONG-MARGINALLY SVR
   WIND GUSTS ARE ACCOMPANYING THIS LINE...CONSISTENT WITH NUMEROUS
   REPORTS OF DOWNED TREES. DISCRETE TSTMS ARE ALSO DEVELOPING AHEAD OF
   THE LINE ACROSS WRN/CNTRL PA...AND ARE EXHIBITING OCCASIONAL
   POTENTIAL FOR LARGE HAIL IN ADDITION TO STRONG WIND GUSTS. 

   00Z SOUNDING FROM PBZ SAMPLED A VERY MOIST/UNSTABLE AIR MASS...WITH
   MLCAPE VALUES EXCEEDING 2000 J/KG AND 20-30 KT OF NEARLY UNIFORM WLY
   DEEP-LAYER FLOW. ENVIRONMENT REMAINS FAVORABLE FOR SUSTENANCE OF
   CONVECTION DESPITE THE IMMINENT ONSET OF DIURNAL
   COOLING...ESPECIALLY S OF A QUASI-STATIONARY BOUNDARY BISECTING PA
   WHICH DELINEATES A SLIGHTLY WARMER/MORE MOIST BOUNDARY LAYER TO THE
   S. EXTENT/MAGNITUDE OF THE DOWNSTREAM DMGG WIND THREAT WILL CONTINUE
   TO BE PREDICATED ON THE DEGREE OF ORGANIZATION CONVECTION CAN
   MAINTAIN...AND MAY REQUIRE A NEW WW DOWNSTREAM FROM WW 326 WITHIN
   THE NEXT HR...TO INCLUDE PARTS OF CNTRL PA...WV...THE MD
   PANHANDLE...AND EXTREME NRN VA.

   ..ROGERS/EDWARDS.. 06/19/2014


   ATTN...WFO...CTP...LWX...PBZ...RLX...CLE...JKL...ILN...

   LAT...LON   40357648 39187811 38488016 38238209 38258301 38538399
               38968425 39838368 40738109 41537991 41937899 41907853
               41407667 40357648 

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: June 19, 2014
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities