Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
120 ACUS02 KWNS 240543 SWODY2 SPC AC 240540 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1240 AM CDT Thu Sep 24 2026 Valid 251200Z - 261200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected tomorrow Friday. ...Synopsis... A nearly stacked, intense low will meander off of the Mid-Atlantic/New England coast while upper ridging in the Plains flattens and an upper trough overspreads the Pacific Northwest tomorrow (Friday). An embedded mid-level impulse will eject into the central Plains, where surface lee troughing and accompanying low-level moisture return will take place. MLCAPE may exceed 1000 J/kg in spots given mid to upper 60s F surface dewpoints. However, widespread clouds and showers, with widely scattered thunderstorms should be present across the Plains through the period, so surface heating will be limited, with poor tropospheric lapse rates expected. As such, the aforementioned buoyancy will be constrained to thin CAPE profiles, amid relatively poor vertical wind shear on a widespread basis. While an instance of severe wind/hail cannot be ruled out over the southern High Plains, the severe threat appears too limited or localized for the confident delineation of severe probabilities this far in advance. ..Squitieri.. 09/24/2026 $$