Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
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842 ACUS01 KWNS 250055 SWODY1 SPC AC 250054 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0754 PM CDT Fri Jul 24 2026 Valid 250100Z - 251200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS SOUTH-CENTRAL/EASTERN ND INTO NORTHERN MN AND EXTREME NORTHEAST SD... ...SUMMARY... Severe thunderstorms capable of large hail, damaging winds, and a tornado risk remain possible this evening across portions of North Dakota into northern Minnesota and extreme northeast South Dakota. ...ND into northern MN... Scattered supercells are ongoing this evening across northern MN, while a small storm cluster (with occasional embedded supercell structures) is moving eastward across southeast ND and extreme northeast SD. MLCAPE of 2000-3000 J/kg and effective shear of 40-50 kt will continue to provide a favorable environment for organized storms through the evening, though some increase in CINH is expected with time. Ongoing supercell structures will continue to pose a threat of large hail and localized severe gusts, and some tornado threat may persist through at least dusk, given increasing low-level shear/SRH (as observed on the KMVX VWP). Any upscale growth could be accompanied by localized swaths of greater severe-wind threat. An eventual weakening trend is expected late tonight, as CINH continues to increase with time and buoyancy decreases with southeastward extent. See MCD 1726 and MCD 1727 for more information. ...Elsewhere... High-based convection may continue to pose a threat for localized strong to severe gusts across parts of the southern Rockies and High Plains, southeast AZ, and the northern Great Basin into parts of ID/western WY/southwest MT though the evening. Weak deep-layer flow/shear should continue to limit potential for a more organized severe threat. ..Dean.. 07/25/2026 $$