Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
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098 ACUS01 KWNS 290050 SWODY1 SPC AC 290048 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0748 PM CDT Mon Sep 28 2026 Valid 290100Z - 291200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR PARTS OF THE WESTERN/CENTRAL DAKOTAS AND CENTRAL HIGH PLAINS... ...SUMMARY... Isolated strong to locally severe storms remain possible this evening across parts of the western/central Dakotas and also the central High Plains. ...Parts of the Dakotas into the central High Plains... Widely scattered strong thunderstorms are ongoing this evening from eastern ND into western SD. While low/midlevel lapse rates are generally weak, relatively rich low-level moisture is supporting MLCAPE of near/above 1000 J/kg, with 25-35 kt of effective shear sufficient for occasional storm organization. Isolated hail and strong to severe gusts cannot be ruled out this evening, though a weakening trend is expected later tonight as convection becomes increasingly elevated with time. Farther south, isolated strong storms are ongoing this evening across parts of northwest NE, and also near the CO/KS border. Occasional supercell structures will be possible through dusk, though modest lapse rates and buoyancy may tend to limit the magnitude of the severe threat. See MCD 2332 for more information regarding the short-term threat in this area. ..Dean.. 09/29/2026 $$