Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0252 AM CST Tue Jan 20 2026 Valid 231200Z - 281200Z ...DISCUSSION... An arctic airmass will settle across much of the CONUS east of the Rockies on Days 4-5/Fri-Sat. Resulting strong high pressure and cold/dry/stable conditions will persist over much of the country throughout the period. However, some thunderstorm potential could develop across portions of the Gulf Coast states/Southeast on Days 4-6/Fri-Sun as a surface cold front progresses east/southeast. Modified Gulf moisture will be in place near the immediate Gulf Coast. Warm advection in the low-levels could result in isolated thunderstorms near or just to the cool side of the cold front Friday afternoon across parts of TX, spreading east/northeast across the Southeast through Saturday and early Sunday. Instability should remain weak as better moisture remains offshore, and due to convection becoming undercut by the cold front.
