Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
778 ACUS03 KWNS 051905 SWODY3 SPC AC 051904 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0104 PM CST Fri Dec 05 2025 Valid 071200Z - 081200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not currently expected on Sunday. ...Synopsis... Within a broad, large-scale trough covering much of the central/eastern CONUS, a low-amplitude shortwave is forecast to move from the southern Great Plains into the Southeast on Sunday. In response to this system, some low-level moisture return is possible into parts of the upper TX coast and southern LA, in advance of an approaching cold front. However, persistent surface ridging will tend to keep the richer Gulf moisture mostly suppressed offshore. Early-day elevated convection will be possible across parts of the Gulf Coast, to the north of the primary baroclinic zone. Convective showers may develop later in the day across parts of LA and southern MS along/ahead of the approaching cold front, though forecast soundings currently suggest that this convection may not be sufficiently deep for lightning production. Farther east, thermodynamic profiles may become at least marginally supportive of thunderstorm development across parts of the FL Peninsula and Keys. Isolated diurnal storm development cannot be ruled out near any sea breeze boundaries and a remnant baroclinic zone across the peninsula, though large-scale forcing will be limited. Late in the period, thunderstorms over the Gulf may approach parts of the FL Panhandle and Keys. While some increase in deep-layer shear is possible with time, generally weak lapse rates and modest buoyancy are currently expected to limit the organized-severe threat. ..Dean.. 12/05/2025 $$