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Severe Storm Outlook Narrative (AC)
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Issued by NWS
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000 ACUS11 KWNS 232033 SWOMCD SPC MCD 232032 TXZ000-232200- MESOSCALE DISCUSSION 0784 NWS STORM PREDICTION CENTER NORMAN OK 0332 PM CDT THU MAY 23 2013 AREAS AFFECTED...PANHANDLE/NWRN TX CONCERNING...TORNADO WATCH 213... VALID 232032Z - 232200Z THE SEVERE WEATHER THREAT FOR TORNADO WATCH 213 CONTINUES. SUMMARY...GREATEST NEAR-TERM POTENTIAL FOR VERY LARGE HAIL...SEVERE WINDS AND MESOCYCLONE TORNADOES SHOULD REMAIN WITH A SUPERCELL CLUSTER IN THE ERN HALF OF THE LUB CWA. ADDITIONAL TSTMS MAY DEVELOP BY 22Z ALONG THE OCCLUDED OUTFLOW/FRONT FARTHER NW IN THE WRN TX PANHANDLE. DISCUSSION...SUPERCELL OVER FLOYD COUNTY HAS PERSISTENTLY MOVED SLOWLY SWD...WHILE ADDITIONAL UPDRAFTS HAVE FORMED SEWD ON THE COOL SIDE OF THE INCREASINGLY DIFFUSE LARGER-SCALE OUTFLOW BOUNDARY. WITH 60S SURFACE DEW POINTS PERSISTING N/E OF THE OUTFLOW ACROSS THE LOW ROLLING PLAINS INTO N-CNTRL TX /SAMPLED BY 20Z FWD RAOB/...AND SURFACE TEMPERATURES S/W OF THE BOUNDARY FROM 95-100 DEG F...LARGE INSTABILITY WILL REMAIN FAVORABLE FOR ALL SEVERE HAZARDS WITH ACTIVITY GRADUALLY SHIFTING S/SEWD. FARTHER NW...INITIAL CONVECTIVE ATTEMPTS HAVE FAILED TO YIELD TSTMS ALONG THE SLOWLY WWD-PROGRESSING OUTFLOW WHICH HAS ESSENTIALLY OCCLUDED WITH THE REMNANT QUASI-STATIONARY FRONTAL ZONE. ALTHOUGH TEMPERATURES ARE NOT QUITE AS WARM AS FARTHER S...REINFORCING OUTFLOW FROM THE SUPERCELL CLUSTERS MAY YIELD SUSTAINABLE CONVECTIVE DEVELOPMENT INTO THE WRN TX PANHANDLE. ..GRAMS.. 05/23/2013 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...OUN...SJT...LUB...AMA...MAF... LAT...LON 34210044 33809969 33189959 32789978 32650017 32530071 32960149 33780214 34380237 35110256 35410245 35550224 35490202 35180199 34620190 34400163 34160095 34210044
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