NWS STORM PREDICTION CENTER NORMAN OK
0301 PM CDT SAT APR 14 2012
AREAS AFFECTED...CNTRL/SWRN KS AND WRN OK
CONCERNING...TORNADO WATCH 165...
VALID 142001Z - 142030Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 165 CONTINUES.
DRYLINE CIRCULATIONS ADJACENT TO A N-S-ORIENTED ZONE OF SFC
CONFLUENCE CONTINUE TO FOSTER THE DEVELOPMENT OF DISCRETE SUPERCELLS
FROM CNTRL/SWRN KS INTO WRN OK. DURING THE NEXT HALF HOUR TO
HOUR...THE HIGHEST THREAT FOR TORNADOES ALONG WITH VERY LARGE HAIL
WILL EXTEND FROM CNTRL/SWRN KS INTO NWRN OK WITH NEWD/ENEWD-TRACKING
SUPERCELLS CURRENTLY IN HODGEMAN/PAWNEE COUNTIES KS...KIOWA COUNTY
KS...HARPER COUNTY OK...AND AN INCIPIENT CONVECTIVE PLUME IN ELLIS
COUNTY. VISIBLE SATELLITE IMAGERY SUGGESTS ADDITIONAL CUMULUS
DEVELOPING NEAR THE DRYLINE TOWARD THE RED RIVER...AND THE
PARTICULARLY DANGEROUS SITUATION TORNADO WATCH 165 HAD EARLIER BEEN
EXTENDED SWD TO THE TX/OK BORDER. WITH DEEP-LAYER SHEAR VECTORS
EXHIBITING A SUBSTANTIAL DRYLINE-ORTHOGONAL COMPONENT AND EFFECTIVE
SRH VALUES OF AROUND 300-500 M2/S2...DISCRETE SUPERCELLS CAPABLE OF
PRODUCING TORNADOES...SOME POSSIBLY STRONG TO VIOLENT...ALONG WITH
VERY LARGE HAIL AND DMGG STRAIGHT-LINE WINDS WILL BE OF CONCERN.
..COHEN.. 04/14/2012
