MD 1496 CONCERNING SEVERE THUNDERSTORM WATCH 438… FOR SRN KS/NRN OK
MESOSCALE DISCUSSION 1496 NWS STORM PREDICTION CENTER NORMAN OK 0947 PM CDT TUE JUL 23 2013 AREAS AFFECTED...SRN KS/NRN OK CONCERNING...SEVERE THUNDERSTORM WATCH 438... VALID 240247Z - 240345Z THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 438 CONTINUES. SUMMARY...MCS IS EXPECTED TO EXPAND AND SPREAD SEWD OVER THE NEXT FEW HOURS. DISCUSSION...CONSIDERABLE AMOUNT OF CONVECTION HAS EVOLVED ACROSS SRN KS THIS EVENING WITHIN ZONE OF WEAK WARM ADVECTION. EARLIER ACTIVITY THAT INITIATED NEAR THE SFC LOW WITHIN DEEPLY MIXED ENVIRONMENT OVER SWRN KS HAS WEAKENED WITH LOSS OF DAYTIME HEATING. AS A RESULT...IT APPEARS THE GREATEST CONCENTRATION OF STORMS WILL BE FOCUSED ALONG A NW-SE CORRIDOR FROM ROUGHLY ICT-TUL. AN UPWARD EVOLVING MCS WILL CONTINUE TO EXPAND IN AREAL COVERAGE ACROSS SCNTRL/SERN KS OVER THE NEXT FEW HOURS AND SPREAD INTO NRN/NERN OK. 00Z SOUNDING AT OUN EXHIBITED A VERY UNSTABLE PROFILE WITH MUCAPE IN EXCESS OF 5000 J/KG AND PW VALUES APPROACHING 2 INCHES. VERY DAMAGING WINDS MAY OCCUR WITH LEADING EDGE OF MATURING MCS...IN ADDITION TO LARGE HAIL. ..DARROW.. 07/24/2013 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...SGF...TSA...ICT...OUN...GID...DDC... LAT...LON 39439954 37409473 34659472 36699955 39439954
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