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 908
< Previous MD         Next MD >
MD 908 graphic

   MESOSCALE DISCUSSION 0908
   NWS STORM PREDICTION CENTER NORMAN OK
   0458 PM CDT FRI MAY 31 2013

   AREAS AFFECTED...WCNTRL THROUGH CNTRL AND NERN OK

   CONCERNING...TORNADO WATCH 262...

   VALID 312158Z - 312330Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 262 CONTINUES.

   SUMMARY...STORMS WILL UNDERGO A RAPID INCREASE IN ORGANIZATION AND
   INTENSITY OVER WCNTRL AND SWRN OK. THE STORMS ARE EXPECTED TO MATURE
   INTO SUPERCELLS AND BECOME CAPABLE OF PRODUCING VERY LARGE HAIL AND
   STRONG TORNADOES AS THEY MOVE EWD AND ENEWD TOWARD CNTRL OK THIS
   EVENING.

   DISCUSSION...EARLY THIS EVENING A COLD FRONT EXTENDS FROM ERN KS
   SWWD THROUGH NWRN OK THEN WWD INTO THE NRN TX PANHANDLE. A DRYLINE
   EXTENDS FROM WRN TX NWD INTO WRN OK WHERE IT INTERSECTS THE DRYLINE.
   TRENDS IN SATELLITE IMAGERY SHOW CUMULUS CONGESTUS INCREASING WITHIN
   THE MORE DEEPLY MIXED REGIME NEAR THE DRYLINE ACROSS SWRN OK AND THE
   FIRST STORMS ARE INITIATING ALONG THE DRYLINE/FRONT INTERSECTION
   NEAR WATONGA. THE ATMOSPHERE DOWNSTREAM IS VERY UNSTABLE WITH 4000+
   J/KG MLCAPE WITH DEWPOINTS IN THE LOW 70S AND VERY STEEP LAPSE RATES
   ALONG WITH EFFECTIVE SHEAR IS AROUND 50 KT. LOW LEVEL HODOGRAPHS ARE
   NOT PARTICULARLY LARGE...BUT WINDS NEAR THE SFC ARE BACKED TO SSELY
   ACROSS CNTRL-WCNTRL OK...AND HODOGRAPHS WILL GRADUALLY INCREASE IN
   SIZE AS THE LLJ STRENGTHENS. THIS ENVIRONMENT WILL SUPPORT EXPLOSIVE
   THUNDERSTORM DEVELOPMENT WITH STORMS RAPIDLY ORGANIZING INTO
   SUPERCELLS CAPABLE OF PRODUCING VERY LARGE HAIL AND STRONG TORNADOES
   AS THEY MOVE ENEWD THROUGH THE VERY MOIST AND UNSTABLE WARM SECTOR
   NEXT FEW HOURS.

   ..DIAL.. 05/31/2013


   ATTN...WFO...TSA...OUN...

   LAT...LON   34209866 35269857 36109796 36999650 36899524 35979525
               34009655 34209866 

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: September 21, 2020
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities