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 1876
< Previous MD         Next MD >
MD 1876 graphic

   MESOSCALE DISCUSSION 1876
   NWS STORM PREDICTION CENTER NORMAN OK
   0319 PM CDT MON OCT 13 2014

   AREAS AFFECTED...PORTIONS OF SRN IL...WRN KY

   CONCERNING...TORNADO WATCH 535...

   VALID 132019Z - 132145Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 535 CONTINUES.

   SUMMARY...THE SVR-TSTM/TORNADO RISK CONTINUES ACROSS REMAINING-VALID
   PORTIONS OF WW 535.

   DISCUSSION...A SQUALL LINE CONTINUES SPREADING EWD/NEWD...PRECEDED
   BY 67-68F SFC DEWPOINTS AND MODEST DIURNAL HEATING. THIS IS
   SUPPORTING AROUND 500-750 J/KG OF MLCAPE. WHILE SFC PRESSURE FALLS
   ARE MAXIMIZED NEAR THE IA/IL BORDER...PRESSURE FALLS ON THE ORDER OF
   2.0-2.5 MB PER 2 HOURS AHEAD OF THE QLCS -- PERHAPS SOMEWHAT
   DIURNALLY INFLUENCED -- ARE A REFLECTION OF THE LARGE-SCALE ASCENT
   OVERSPREADING THE AREA. THESE FACTORS WILL BREED CONTINUED EWD
   TRANSLATION OF THE OVERALL QLCS AT LARGE INTO THE LATE AFTERNOON.
   DESPITE DEEP MERIDIONAL FLOW SAMPLED BY PAH VWP...THE PRESENCE OF
   45-50 KT OF 0-6-KM BULK SHEAR AND AROUND 30-35 KT OF 0-1-KM BULK
   SHEAR WILL MAINTAIN THE QLCS WITH DMGG WINDS ENHANCED BY
   MESOVORTICES...WHICH WILL ALSO BE CAPABLE OF SUPPORTING TORNADOES.
   PADUCAH BASE RADAR REFLECTIVITY AND VELOCITY DATA CONTINUE TO SHOW
   RELATED LEWP STRUCTURES ALONG THE LINE.

   ..COHEN.. 10/13/2014


   ATTN...WFO...OHX...PAH...ILX...LSX...

   LAT...LON   38958959 39158921 38988868 38388817 36828771 36518826
               36788906 38478967 38958959 

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