A Moderate Risk of Severe Thunderstorms is forecast for Sun (05/11)

   DAY 2 CONVECTIVE OUTLOOK CORR 1
   NWS STORM PREDICTION CENTER NORMAN OK
   1238 PM CDT SAT MAY 10 2014

   VALID 111200Z - 121200Z

   ...THERE IS A MDT RISK OF SVR TSTMS ACROSS PARTS OF IA...ERN
   NEB...NW MO AND KS...

   ...THERE IS A SLGT RISK OF SVR TSTMS ACROSS PARTS OF THE SRN
   PLAINS...CNTRL PLAINS....MID-MO VALLEY AND MID TO UPPER MS VALLEY...

   CORRECTED TO REMOVE SECOND HEADLINE

   ...SUMMARY...
   SEVERE WEATHER OUTBREAK WITH MANY TORNADOES AND VERY LARGE HAIL
   POSSIBLE SUNDAY AND SUNDAY NIGHT ACROSS PARTS OF THE CENTRAL PLAINS
   AND MID MISSOURI VALLEY. SEVERE STORMS WILL ALSO BE LIKELY IN THE
   SOUTHERN PLAINS.

   ...MID-MO VALLEY/CNTRL PLAINS...
   AN UPPER-LEVEL TROUGH WILL MOVE ACROSS THE FOUR CORNERS REGION
   SUNDAY AS DIFFLUENT SOUTHWEST MID-LEVEL FLOW REMAINS IN PLACE ACROSS
   THE CNTRL STATES. AT THE SFC...A COLD FRONT WILL ADVANCE SEWD ACROSS
   THE CNTRL PLAINS AS A WARM FRONT MOVES NWD ACROSS THE MID MO VALLEY.
   A CLUSTER OF THUNDERSTORMS MAY BE ONGOING IN THE MID MO VALLEY
   SUNDAY MORNING ON THE NOSE OF THE LOW-LEVEL JET. HOWEVER...MOST OF
   THE WARM SECTOR SHOULD REMAIN UNDISTURBED THROUGH EARLY SUNDAY
   AFTERNOON AS MODERATE TO STRONG INSTABILITY DEVELOPS. BY LATE
   AFTERNOON...NUMEROUS THUNDERSTORMS SHOULD INITIATE ALONG THE WARM
   FRONT FROM IA EXTENDING SWWD ALONG THE COLD FRONT INTO SE NEB AND
   CNTRL KS. DUE TO THE VERY UNSTABLE AIRMASS...STRONG DEEP LAYER SHEAR
   AND IMPRESSIVE LOW-LEVEL SHEAR...AN OUTBREAK OF SEVERE STORMS WITH
   MANY TORNADOES WILL BE POSSIBLE ACROSS THE REGION SUNDAY AND SUNDAY
   NIGHT.

   FORECAST SOUNDINGS FOR 00Z/MON ACROSS THE MODERATE RISK AREA FROM
   DES MOINES IA SWWD TO TOPEKA KS SHOW IMPRESSIVE SHEAR PROFILES
   COUPLED WITH STRONG INSTABILITY. THE NAM IS FORECASTING MLCAPE IN
   THE 2000 TO 3000 J/KG RANGE WITH 0-6 KM SHEAR OF 40 TO 50 KT. IN
   ADDITION...LONG LOOPED HODOGRAPHS RESULT IN 0-3 KM STORM RELATIVE
   HELICITIES OF 350 TO 500 M2/S2 SUGGESTING THE ENVIRONMENT WILL BE
   FAVORABLE FOR SUPERCELLS AND TORNADOES. SEVERAL STRONG OR LONG-TRACK
   TORNADOES APPEAR POSSIBLE ACROSS THE REGION AS THE LOW-LEVEL JET
   RAPIDLY BECOMES FOCUSED LATE SUNDAY AFTERNOON INTO SUNDAY EVENING.
   SUPERCELLS SHOULD BE ACCOMPANIED WITH LARGE HAIL AND WIND DAMAGE.
   HAILSTONES GREATER THAN 2 INCHES IN DIAMETER WILL BE POSSIBLE WITH
   THE MORE DOMINANT SUPERCELLS.