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 1449
< Previous MD         Next MD >
MD 1449 graphic
   
   MESOSCALE DISCUSSION 1449
   NWS STORM PREDICTION CENTER NORMAN OK
   1257 PM CDT THU JUN 30 2011
   
   AREAS AFFECTED...SRN/SERN WY...CNTRL/NCNTRL/NERN CO...NEB PNHDL
   
   CONCERNING...SEVERE POTENTIAL...WATCH LIKELY 
   
   VALID 301757Z - 301900Z
   
   STRONG-SEVERE THUNDERSTORMS WITH DAMAGING WINDS AND LARGE HAIL WILL
   BE LIKELY THROUGH THE AFTERNOON.  STORMS WILL SPREAD ENE FROM SCNTRL
   WY AND WRN CO TO THE HIGH PLAINS BY MID-AFTERNOON AND A WEATHER
   WATCH WILL BE LIKELY...GREATER THAN 80 PERCENT FOR PARTS OF THE
   AREA.
   
   STRONG PV-ANOMALY WAS CENTERED OVER SCNTRL UT AT 18Z AND WILL MOVE
   INTO WRN CO THIS AFTERNOON.  STRONG LARGE-SCALE ASCENT SPREADING
   DOWNSTREAM TOWARD THE HIGH PLAINS COUPLED WITH VERY STEEP LAPSE
   RATES AND 1000 J/KG MLCAPES WILL LIKELY AID IN MAINTENANCE AND
   FORMATION OF TSTMS ACROSS THE DISCUSSION AREA THIS AFTERNOON.  
   
   DEEP SWLY TROPOSPHERIC FLOW ALONG BASE OF THE SYSTEM /50-60 KTS AT
   500 MB/ WILL BE FAVORABLE FOR THE HIGH-BASED STORMS TO BOW WITH
   DAMAGING WINDS A THREAT.  HOWEVER...DIURNAL UPSLOPE FLOW EAST OF THE
   DIVIDE WILL ACT TO ENHANCE THE VERTICAL SHEAR AND
   LONGER-LIVED...HIGH-BASED SUPERCELLS WILL BE POSSIBLE ACROSS SERN
   WY...NEB PNHDL AND NERN CO AMID SLIGHTLY STRONGER BUOYANCY/LOW-LEVEL
   MOISTURE.  HERE...LARGE HAIL WILL BE AN ADDITIONAL THREAT BEFORE
   COLD POOLS BEGIN TO DOMINATE.
   
   ..RACY.. 06/30/2011
   
   
   ATTN...WFO...LBF...PUB...BOU...CYS...RIW...GJT...
   
   LAT...LON   38240722 40360687 40850686 41050707 41160898 41430924
               41860939 42330836 42800675 43280542 43090438 42660359
               42310281 41710243 40890316 39370470 38410571 38240722 
   
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 30, 2011
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities