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 1305
< Previous MD         Next MD >
MD 1305 graphic

   MESOSCALE DISCUSSION 1305
   NWS STORM PREDICTION CENTER NORMAN OK
   0752 PM CDT MON JUL 07 2014

   AREAS AFFECTED...CENTRAL AND SE NEB...NE KS...SW IA...NRN MO

   CONCERNING...SEVERE THUNDERSTORM WATCH 399...400...

   VALID 080052Z - 080215Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   399...400...CONTINUES.

   SUMMARY...CONVECTIVE TRENDS CONTINUE TO INCREASE THIS EVENING...WITH
   AN ATTENDANT UPTICK IN DAMAGING WIND THREAT ACROSS S-CNTRL INTO SE
   NEB...NE KS...SW IA AND NRN MO. WHILE DAMAGING WINDS AND HAIL WILL
   BE THE MAIN THREATS...ISOLATED...BRIEF TORNADOES WILL BE POSSIBLE AS
   WELL.

   DISCUSSION...THE DAMAGING WIND THREAT WILL INCREASE THIS EVENING
   ACROSS SERN PORTIONS OF WW 399 AND INTO WW 400 AS CAPPING ISSUES
   THAT PREVIOUSLY WERE INHIBITING CONVECTION OVER ERN NEBRASKA EARLIER
   THIS AFTERNOON BEGIN TO ERODE AS MIDLEVEL TEMPERATURES COOL WITH THE
   APPROACH OF UPSTREAM SHORTWAVE TROUGH. THIS IS EVIDENT IN AN UPWARD
   TREND IN STORM INTENSITY OVER THE LAST 30-60 MINUTES AS THEY MOVE
   TOWARD A MORE UNSTABLE...WEAKLY CAPPED ENVIRONMENT AS NOTED IN THE
   00Z TOP RAOB. ADDITIONALLY...AGITATED CU HAS DEVELOPED JUST AHEAD OF
   THE LINE IN CENTRAL NEBRASKA AND N-CNTRL KS WITH SOME STRONGER
   ECHOES ASSOCIATED WITH THIS DEVELOPMENT ALSO NOW APPARENT ON
   RADAR...FURTHER EVIDENCE THAT THE ENVIRONMENT IS BECOMING MORE
   CONDUCIVE TO MORE ROBUST UPSCALE DEVELOPMENT. 

   ADDITIONALLY...VWP DATA FROM EAX AND TWX SUGGEST BACKED LOW LEVEL
   FLOW VEERING WITH HEIGHT...RESULTING IN 0-1 KM SRH VALUES
   APPROACHING 100-150 M2/S2. WHILE DAMAGING STRAIGHT-LINE WINDS WILL
   BE THE MAIN THREAT...LOW LEVEL HODOGRAPHS WILL SUPPORT EMBEDDED
   MESOVORTEX DEVELOPMENT WITH AN ATTENDANT RISK OF BRIEF/ISOLATED
   TORNADOES.

   ..LEITMAN.. 07/08/2014


   ATTN...WFO...SGF...DMX...EAX...OAX...TOP...GID...LBF...GLD...

   LAT...LON   42069904 40569308 39849241 38899267 38669306 38609343
               38639376 38829536 39719951 40740000 41370013 41759973
               42069904 

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: July 08, 2014
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities