Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0343 AM CDT Sun Oct 26 2025 Valid 291200Z - 031200Z ...DISCUSSION... Severe potential is low through the extended forecast period. A strong upper trough and jet over the central US will merge with a broad upper low over the eastern US midweek. At the same time, ridging will develop over the West, as the flow pattern aloft amplifies significantly. This will drive strong northwesterly flow across the central CONUS. An associated cold front will sweep through the central and eastern US before moving offshore D4/Wed. As the front moves offshore, a deep coastal low is expected to develop and could promote isolated thunderstorm activity along the East Coast or south FL late this week and into the weekend. However, the persistent eastern US troughing and strong surface high pressure behind the cold front will favor much cooler, drier and more stable surface conditions across the CONUS. Thus, thunderstorm chances are low with little severe risk through the extended forecast period.
