ZCZC SPCSWOMCD ALL ACUS11 KWNS 270306 SPC MCD 270306 KYZ000-TNZ000-ARZ000-MSZ000-270430- Mesoscale Discussion 0901 NWS Storm Prediction Center Norman OK 1006 PM CDT Tue Jun 26 2018 Areas affected...Northeast AR...MO Bootheel...western TN/KY Concerning...Severe Thunderstorm Watch 226... Valid 270306Z - 270430Z The severe weather threat for Severe Thunderstorm Watch 226 continues. SUMMARY...Although a locally strong wind gust cannot be ruled out across and just east of the remaining portion of WW 226 in western Tennessee and western Kentucky, the overall severe-weather threat will continue to diminish through the late evening. A new severe thunderstorm watch issuance is not needed east of WW 226. DISCUSSION...Trends in mosaic radar imagery this evening showed a long-lived, forward-propagating MCS had moved into western portions of KY and TN during the latter part of the evening. Short-term guidance suggests this band of storms should reach central KY and middle TN after midnight. However, an overall weakening trend, as already noted in much of the leading band of storms, given the deceleration in forward speed and weakening storm intensities, will persist and preclude the need for a new watch. The further increase in surface-based inhibition and greater boundary-layer stability with eastward extent are key factors limiting the severity of storms into the early overnight. ..Peters.. 06/27/2018 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LMK...OHX...PAH...MEG... LAT...LON 35339102 36178843 36818745 37548678 36978641 36378713 35528792 35058800 35018973 34989033 35209101 35339102 NNNN