Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0335 AM CST Tue Jan 13 2026 Valid 161200Z - 211200Z ...DISCUSSION... A persistent eastern U.S large-scale upper-level trough is forecast to remain in place through the Day 4 to 8 period. As a result, northwesterly mid-level flow is forecast over much of the continental U.S. In response, multiple cold air intrusions are expected to take place across the central and eastern U.S. This will keep a relatively dry and cold airmass over much of the nation through early next week. For this reason, conditions will be unfavorable for thunderstorms in most areas, and a severe threat is not forecast in the Day 4 to 8 period.
