SPC 0100Z Day 1 Outlook
DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0745 PM CDT MON APR 30 2012 VALID 010100Z - 011200Z ...THERE IS A SLGT RISK OF SVR TSTMS FROM WRN TX INTO OK AND SRN KS... ...THERE IS A SLGT RISK OF SVR TSTMS FROM NRN KS INTO OH AND WRN PA AND WV... ...KS/OK/TX... NUMEROUS CLUSTERS OF SUPERCELLS WERE ONGOING AS OF 0040Z. ONE CLUSTER WITH NOTABLE MESOCYCLONES WAS MOVING INTO S CNTRL KS...ALONG THE WARM FRONT. HAIL AS WELL AS TORNADOES AND DAMAGING WINDS WILL BE POSSIBLE.OTHER DEVELOPMENT WAS OCCURRING OVER NERN OK ON THE WARM FRONT. FOR MORE INFORMATION SEE MESOSCALE DISCUSSION 637. ANOTHER CLUSTER WAS OVER THE ERN TX PANHANDLE WITH VERY LARGE HAIL. ALL THESE STORMS SHOULD CONTINUE GENERALLY EWD ACROSS AN UNSTABLE AND UNCAPPED WARM SECTOR. THE 00Z OUN SOUNDING SHOWED ZERO CIN AND 2550 MLCAPE. LOW LEVEL VEERING WINDS WILL ONLY INCREASE THIS EVENING. STORMS OVER THE TX PANHANDLE WILL MOST LIKELY AFFECT SWRN OK AS HODOGRAPHS FAVOR RIGHT MOVERS...BUT SOME CELLS COULD PERSIST AND/OR SPLIT INTO CNTRL OK OVERNIGHT. LARGE HAIL...WIND...AND ISOLATED TORNADOES WILL BE POSSIBLE. FARTHER S...SEVERAL CLUSTERS OF DRYLINE STORMS PERSIST WITH LARGE HAILERS OVER NW TX AND A SMALL MCS WITH WIND AND HAIL ACROSS THE LOWER PECOS RIVER/RIO GRANDE REGION ...OH...KY...WRN PA...WV... SOMEWHAT LOOSELY ORGANIZED BAND/CLUSTERS OF STORMS WERE MOVING RAPIDLY EWD ACROSS WRN OK AND CNTRL KY AS OF 00Z...IN ASSOCIATION WITH A SHORTWAVE TROUGH AND EMBEDDED IN STRONG MEAN WLY FLOW. THE AIR MASS AHEAD OF THIS ACTIVITY REMAINS UNSTABLE AND EXPERIENCED FULL HEATING DURING THE DAY. WITH AMPLE DEEP LAYER SHEAR AND EXISTING COLD POOLS...SOME THREAT IS EXPECTED TO PERSIST FOR SEVERAL MORE HOURS. HAIL IS MOST LIKELY OVER KY AND WV...WITH A WIND THREAT AREA-WIDE. ..JEWELL.. 05/01/2012
via SPC Forecast Products http://www.spc.noaa.gov/products/outlook/day1otlk_0100.html
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