Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0227 AM CST Sat Dec 14 2024 Valid 171200Z - 221200Z ...DISCUSSION... An upper trough over the High Plains vicinity Day 4/Tue morning will deepen and track east to the MS Valley by Day 5/Wed, and to the Atlantic coast by Day 6/Thu. As this occurs, a cold front will move across the south-central and southeast states, pushing offshore the Gulf and Atlantic coasts by late Day 5/Wed into early Day 6/Thu. While thunderstorm potential will be possible with this system, severe potential appears limited, given weak instability and deep-layer flow oriented parallel to the surface boundary (leading to more anafrontal processes). With the strong front moving well into the Gulf of Mexico, boundary-layer moisture will remain scant heading into the end of the forecast period, and severe-thunderstorm potential is expected to remain low Days 7-8/Fri-Sat.