Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0340 AM CDT Fri Oct 31 2025 Valid 031200Z - 081200Z ...DISCUSSION... ...Monday/Day 4 to Wednesday/Day 6... West-northwesterly mid-level flow will be in place over the eastern two-thirds of the nation during the early to mid-week. Through this time, surface high pressure will remain dominant from the Great Plains eastward into the eastern U.S. Further west, a mid-level trough is forecast to move into California on Wednesday. Thunderstorms will be possible along the coast of California as the system moves inland. ...Thursday/Day 7 and Friday/Day 8... The West Coast mid-level trough is forecast to move quickly eastward across the Rockies on Thursday. Ahead of the system, isolated to scattered thunderstorms appear most likely Thursday afternoon and evening across parts of the southern and central Plains. A severe threat will be possible with this activity. Ahead of the mid-level trough, a severe threat may again develop over the Ozarks and mid Mississippi Valley on Friday. The severe threat on Thursday and Friday is expected to remain isolated, mainly due to relatively weak instability.
