Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
203 ACUS48 KWNS 250826 SWOD48 SPC AC 250824 Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0324 AM CDT Fri Sep 25 2026 Valid 281200Z - 031200Z ...DISCUSSION... Upper troughing over the Interior West, containing multiple smaller impulses, will gradually progress eastward to the Plains states through the middle of the week (Days 5-7/Tuesday-Thursday) before another mid-level trough approaches the central U.S. by next weekend. Deterministic medium-range guidance consensus depicts the development of a surface low over the southern Plains around Day 6/Wednesday, accompanied by seasonal low-level moisture return. However, guidance also depicts a poor overlap of vertical wind shear with the moist axis, likely inhibiting greater severe potential, in agreement with calibrated ML/AI guidance consensus. As such, no probabilities were introduced this outlook. ..Squitieri.. 09/25/2026