Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
762 ACUS48 KWNS 120843 SWOD48 SPC AC 120841 Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0341 AM CDT Sat Sep 12 2026 Valid 151200Z - 201200Z ...DISCUSSION... In the wake of a vigorous short wave perturbation and associated surface cyclone accelerating northeast of the upper Great Lakes into the higher latitudes, a lingering near-surface frontal zone across the lower Great Lakes and Ohio Valley into the central Great Plains may provide a focus for occasional thunderstorm development into the middle to latter portion of next week. However, this may largely remain beneath the northern periphery of initially prominent mid/upper ridging slowly beginning to retrograde from the Southeast toward the Southwestern international border area. Forcing for ascent and destabilization may not support more than rather isolated and/or marginal severe thunderstorm potential, and even latest available AI guidance generally suggests that this limited potential will wane by late week into next weekend. ..Kerr.. 09/12/2026