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 686
< Previous MD         Next MD >
MD 686 graphic

   MESOSCALE DISCUSSION 0686
   NWS STORM PREDICTION CENTER NORMAN OK
   0742 PM CDT SAT MAY 24 2014

   AREAS AFFECTED...PORTIONS OF W-CNTRL AND W TX...SERN NM

   CONCERNING...TORNADO WATCH 181...

   VALID 250042Z - 250145Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 181 CONTINUES.

   SUMMARY...THE POTENTIAL FOR VERY LARGE HAIL AND A TORNADO OR TWO
   WILL PERSIST FROM N OF THE BIG BEND AREA NEWD TO NEAR SJT. THE
   POTENTIAL FOR ADDITIONAL TSTM DEVELOPMENT IS ALSO BEING MONITORED
   ACROSS FAR W TX OVER THE NEXT COUPLE HRS...WHICH MAY MOVE INTO WRN
   PORTIONS OF THE TORNADO WATCH AREA.

   DISCUSSION...AN ARCING TSTM CLUSTER WITH EMBEDDED SUPERCELLS
   DISPLAYING HP CHARACTERISTICS IS PERSISTING FROM N OF 6R6 TO JUST W
   OF SAN ANGELO. A COLD POOL CONTINUES TO BE REINFORCED BY CONVECTION
   DEVELOPING ALONG AND TO THE IMMEDIATE N OF THE BOUNDARY...AND IS
   SLOWLY SAGGING SWD...UNDERCUTTING TSTMS AND LIKELY LIMITING TORNADIC
   POTENTIAL TO A BRIEF TEMPORAL WINDOW. HOWEVER...A TORNADO THREAT
   WILL STILL EXIST...PARTICULARLY WITH QUASI-DISCRETE TSTMS THAT
   INTERACT WITH THE OUTFLOW BOUNDARY. PRIMARY THREAT ATTM APPEARS TO
   BE VERY LARGE HAIL SUPPORTED BY VERY MOIST INFLOW CONDITIONS
   /CHARACTERIZED BY MID-UPPER 60S F DEW POINTS/ AND STEEP MIDLEVEL
   LAPSE RATES. GOLFBALL-SIZED WAS REPORTED IN IRION COUNTY TX WITHIN
   THE PAST HR. 

   FARTHER W...A BAND OF ASCENT ASSOCIATED WITH A VORT LOBE EMANATING
   OUT OF THE SWRN CONUS CLOSED LOW IS PROGRESSING EWD ACROSS CNTRL NM
   AND FAR W TX...RESULTING IN NEW CONVECTIVE DEVELOPMENT FROM JUST E
   OF THE EL PASO AREA NWD TOWARDS THE SACRAMENTO MTNS OF NM. THE SVR
   THREAT WITH THIS ACTIVITY COULD INCREASE WITH EWD PROGRESSION INTO A
   MODIFIED BUT COMPARATIVELY MORE MOIST AND UNSTABLE AIR MASS OVER THE
   HIGH PLAINS.

   ..ROGERS.. 05/25/2014


   ATTN...WFO...EWX...SJT...MAF...

   LAT...LON   29870086 29920181 29880273 30120331 30780326 31420375
               32370407 32910357 32780228 32730168 32130130 31660069
               30920029 29940040 29870086 

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: May 25, 2014
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities