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SPC Sep 20, 2026 Day 4-8 Severe Weather Outlook

Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0323 AM CDT Sun Sep 20 2026 Valid 231200Z - 281200Z...DISCUSSION... Upper ridging will persist over the central U.S. through the forecast period, with a meandering upper trough evolving into a cut-off upper low off of the Mid-Atlan...

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