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 389
< Previous MD
MD 389 graphic

   MESOSCALE DISCUSSION 0389
   NWS STORM PREDICTION CENTER NORMAN OK
   0616 PM CDT WED APR 23 2014

   AREAS AFFECTED...PORTIONS OF NW AND N-CENTRAL KS INTO CENTRAL AND
   ERN NEB

   CONCERNING...SEVERE THUNDERSTORM WATCH 87...

   VALID 232316Z - 240015Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 87
   CONTINUES.

   SUMMARY...SEVERE THUNDERSTORMS WILL CONTINUE JUST AHEAD OF THE COLD
   FRONT THE NEXT FEW HOURS. AS THE STORMS TRACK E-NE...THE MAIN
   THREATS WILL CONTINUE TO BE STRONG WINDS AND HAIL. A MARGINAL THREAT
   MAY EXTEND JUST TO THE NORTH AND EAST OF WW 87 TOWARD THE MISSOURI
   RIVER IN NE AND ERN NEB.

   DISCUSSION...THUNDERSTORMS WERE BECOMING MORE NUMEROUS ALONG AND
   JUST AHEAD OF THE COLD FRONT FROM NW KS INTO CENTRAL NEB. THE SEVERE
   THREAT SHOULD CONTINUE FOR A FEW MORE HOURS AS DEEP LAYER FORCING
   FOR ASCENT ASSOCIATED WITH SHORTWAVE IMPULSE NOW EJECTING ACROSS
   WESTERN NEB OVERSPREADS THE REGION IN CONJUNCTION WITH LOW LEVEL
   CONVERGENCE ALONG THE SEWD ADVANCING COLD FRONT. ADEQUATE
   INSTABILITY AND STRONG DEEP LAYER SHEAR SHOULD BE SUFFICIENT TO
   SUSTAIN UPDRAFTS AND MAINTAIN SEVERE STORMS THE NEXT FEW HOURS.
   STEEP LOW TO MIDLEVEL LAPSE RATES AND A DRY SUB-CLOUD LAYER WILL
   SUPPORT STRONG WINDS AND LARGE HAIL POTENTIAL. 

   AS STORMS TRACK FURTHER EAST...INSTABILITY BECOMES QUITE LIMITED AND
   DEEP LAYER SHEAR WEAKENS IN ADDITION TO INCREASING INHIBITION DUE TO
   DIURNAL COOLING. THIS SHOULD LIMIT SEVERE POTENTIAL ACROSS NE/ERN
   NEBRASKA. A DOWNSTREAM WW IS NOT ANTICIPATED BUT TRENDS WILL BE
   MONITORED FOR POSSIBLE LOCAL EXTENSION IF NEEDED.

   ..LEITMAN/HART.. 04/23/2014


   ATTN...WFO...FSD...OAX...TOP...ICT...GID...LBF...DDC...GLD...

   LAT...LON   38690154 40020023 41029935 41899849 42379771 42599707
               42569637 42329597 41739595 40619660 38659836 38279870
               38260081 38240156 38690154 

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: April 23, 2014
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities