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 1590
< Previous MD         Next MD >
MD 1590 graphic

   MESOSCALE DISCUSSION 1590
   NWS STORM PREDICTION CENTER NORMAN OK
   0907 PM CDT WED AUG 20 2014

   AREAS AFFECTED...CNTRL AND ERN NEB...SERN SD...WRN IA

   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 

   VALID 210207Z - 210430Z

   PROBABILITY OF WATCH ISSUANCE...20 PERCENT

   SUMMARY...AN ISOLATED HAIL STORM IS POSSIBLE THROUGH EARLY
   EVENING...BUT COVERAGE PROBABLY WILL NOT WARRANT A WATCH.

   DISCUSSION...A LEFT-MOVING STORM CAPABLE OF HAIL CONTINUES TO TRAVEL
   NNEWD INTO CNTRL NEB THIS EVENING...WITH OTHER WEAK CELLS RECENTLY
   NOTED ON RADAR FROM NRN NEB INTO SERN SD. THESE CELLS ARE ROUGHLY
   COINCIDENT WITH THE WRN PERIPHERY OF THE LOW-LEVEL JET WHERE SOME
   ENHANCED LIFT DUE TO WARM ADVECTION AND CONVERGENCE EXISTS. 

   A MOIST AND UNSTABLE AIR MASS REMAINS IN PLACE WITH MLCAPE UP TO
   3000 J/KG PER 00Z OAX SOUNDING. HOWEVER...CONVECTIVE INHIBITION IS
   ALSO INCREASING AS THE BOUNDARY LAYER COOLS. 

   THEREFORE...IT APPEARS THE GREATEST THREAT FOR HAIL AND PERHAPS WIND
   WILL BE OVER THE NEXT 1-3 HOURS ACROSS NEB...WITH WEAKER AND MORE
   ELEVATED ACTIVITY LATER THIS EVENING ACROSS SERN SD INTO SWRN
   MN/NWRN IA.

   ..JEWELL/THOMPSON.. 08/21/2014


   ATTN...WFO...FSD...OAX...GID...LBF...

   LAT...LON   41089881 41009973 41340034 41980005 43499880 44079810
               44209707 43849593 42839602 41889761 41089881 

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: August 21, 2014
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities