ZCZC SPCSWOD48 ALL ACUS48 KWNS 110813 SPC AC 110813 Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0313 AM CDT Tue Aug 11 2026 Valid 141200Z - 191200Z ...DISCUSSION... Considerable uncertainty remains regarding the exact frontal position, but strong storms will be possible in its vicinity. Most guidance depicts rising midlevel heights and modest deep-layer flow/shear in the vicinity of the frontal zone, which may tend to keep the severe threat isolated. However, details regarding timing of any shortwave troughs and position of the primary frontal zone remain quite uncertain. Predictability remains quite low regarding the extent to which stronger deep-layer flow impinges upon favorable instability, but at least isolated severe potential may eventually develop from parts of the north-central CONUS into the Mid-Atlantic and Carolinas.