Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0357 AM CST Wed Dec 17 2025 Valid 201200Z - 251200Z ...DISCUSSION... Southerly low-level flow will return to the southern Plains on D4/Saturday. This will bring 60sF dewpoints to east Texas and much of Louisiana with weak destabilization anticipated. A few storms may be possible across Louisiana on Saturday night, but shear will be weak. Minimal vertical shear combined with limited forcing and only weak instability will preclude any severe weather threat. Isolated thunderstorm activity is possible from D5/Sunday through the first half of next week from East Texas and Louisiana into the Ozarks and into the Midwest as slight enhancements of the low-level jet promote isentropic ascent. Through this period, low to mid 60s dewpoints will progressively advance farther inland. However, instability should remain weak as mid-level heights build and mid-level temperatures warm. Therefore, despite the inland moisture early next week, severe weather potential remains low due to weak instability, weak forcing, and building heights aloft.
