Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0346 AM CST Sun Jan 11 2026 Valid 141200Z - 191200Z ...DISCUSSION... A persistent large-scale upper-level trough is forecast to remain in the eastern U.S. during the Day 4 to 8 period. This pattern will be favorable for repeated cold air intrusions into the lower forty-eight states from mid to late week. Cold and dry surface high pressure will dominate across much of the nation, making conditions unfavorable for thunderstorm development.
