Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
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457 ACUS11 KWNS 182133 SWOMCD SPC MCD 182132 NCZ000-SCZ000-GAZ000-182300- Mesoscale Discussion 1680 NWS Storm Prediction Center Norman OK 0432 PM CDT Thu Jul 18 2024 Areas affected...eastern/southern NC to the SC Midlands Concerning...Severe Thunderstorm Watch 554... Valid 182132Z - 182300Z The severe weather threat for Severe Thunderstorm Watch 554 continues. SUMMARY...Sporadic tree damage should persist through about dusk with strong gusts from 40-60 mph. DISCUSSION...An arcing broken convective band with loose multicell clustering is ongoing from northeast NC westward to central NC and then southwestward into upstate SC. Outflow attendant to the more westward portion of the band has pushed south of the stronger mid-level flow over southern VA per area VWPs. As such, overall organizational potential should remain weak, but might be slightly better across southern NC as convection upstate overspreads the southward-sinking outflow in the southern NC Piedmont. With a fairly uniform plume of moderate buoyancy characterized by MLCAPE of 1500-2000 J/kg, sporadic strong gusts capable of tree damage will remain possible, before convection likely weakens after sunset. ..Grams.. 07/18/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...AKQ...MHX...RAH...ILM...CAE...GSP... LAT...LON 36267586 35667565 34917692 34377813 33887945 33088174 33858256 35098083 35528013 35587930 35437785 36177643 36267586