ZCZC SPCSWOMCD ALL ACUS11 KWNS 080303 SPC MCD 080303 OKZ000-TXZ000-080400- Mesoscale Discussion 0202 NWS Storm Prediction Center Norman OK 0903 PM CST Thu Mar 07 2024 Areas affected...Southern High Plains Concerning...Severe Thunderstorm Watch 31... Valid 080303Z - 080400Z The severe weather threat for Severe Thunderstorm Watch 31 continues. SUMMARY...Scattered convection will linger across mainly the northern/central portions of ww31 this evening. DISCUSSION...Surface front is gradually advancing south across the southern High Plains this evening but convection has not developed along this boundary to any degree across northwest OK. Most robust convection has gradually weakened, partially due to weaker buoyancy due to onset of nocturnal cooling. Additionally, 1km AGL flow has gradually veered and this is not particularly advantageous given the decreasing instability. 00z sounding from OKC exhibited steep lapse rates, but PW values are seasonally low around 3/4". With boundary-layer decoupling it may become increasingly difficult to maintain organized severe updrafts. While an isolated hail report can not be ruled out, overall trends suggest severe threat will remain marginal from this point forward. ..Darrow.. 03/08/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...FWD...OUN...SJT...LUB...MAF... LAT...LON 31070142 36979900 36989700 31079956 31070142 NNNN