Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0349 AM CST Mon Dec 15 2025 Valid 181200Z - 231200Z ...DISCUSSION... ...D4/Thursday - Mid-Mississippi Valley and Lower Ohio Valley to the Southeast... Isolated severe storms are possible on Thursday as moisture expands northward ahead of a strong cold front. Forecast soundings show strong shear across the region, but limited instability as 60+ F dewpoints struggle to make it north of I-20. Given the strength of the low-level jet, some damaging wind gusts are possible, but a greater threat is not anticipated due to the aforementioned limited instability. ...D5/Friday - Carolinas to Georgia Coast... Thunderstorms may be ongoing near the Carolina/Georgia coast on Friday morning, but will quickly move into the Atlantic as a cold front advances eastward. In addition, this front will move into the Gulf and push rich moisture well offshore. As a result, thunderstorm potential should be limited for the remainder of the D5 period. ...D6/Sat-D7/Sun - TN Valley into the Southeast... Return flow will resume once again across the western Gulf over the weekend. 60F dewpoints are expected to advect inland across East Texas and Louisiana. This richer moisture may eventually interact with a southeastward moving cold front at the end of D6 and into D7 with some thunderstorm potential. A few stronger storms may be possible if sufficient instability can develop.
