Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
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580 ACUS01 KWNS 251916 SWODY1 SPC AC 251915 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0115 PM CST Tue Nov 25 2025 Valid 252000Z - 261200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH LATE EVENING FROM EAST CENTRAL MISSISSIPPI ACROSS CENTRAL ALABAMA... ...SUMMARY... Isolated severe storms are possible from east central/southeast Mississippi across central Alabama into northwest Georgia through late evening. A couple of tornadoes, isolated wind damage and isolated large hail will all be possible. ...20z Update.. Only minor adjustments were made to extend the Slight Risk further southeast across southern Alabama with this update in alignment with recent trends. Occasional rotating cells are noted on radar across central/southern Alabama over the last couple of hours. Daytime heating will continue across this region with occasional stronger cell development expected through the afternoon. VAD profiles from BMX, MXX continue to show favorable low-level curvature of hodographs, indicative of SRH rich environments supporting rotating cells. A couple of tornadoes, isolated wind damage, and isolated large hail remain possible. See previous discussion below for more information. ..Thornton.. 11/25/2025 .PREV DISCUSSION... /ISSUED 1026 AM CST Tue Nov 25 2025/ ...MS/AL/GA through late evening... A weakening midlevel trough will continue to eject east-northeastward from the TN Valley to the Appalachians, in advance of an amplifying trough from the northern Plains to the upper MS Valley. An associated/weak surface cold front will move southeastward across LA/MS/AL, though the majority of the convective threat today will be focused along a residual outflow boundary from east central MS into central AL. Low-level recovery into northeast AL/northwest GA will depend on some clearing of clouds/rain, which is uncertain. Along and south of this boundary, that is being loosely reinforced by ongoing convection, warming surface temperatures into the 70s with mid-upper 60s dewpoints will contribute to MLCAPE of 1000-1500 J/kg. Forcing for ascent will linger into the afternoon and support additional thunderstorm development, and there will be sufficient deep-layer vertical shear for a couple of supercells. Low-level shear/hodograph curvature will be greatest along the residual outflow (per the BMX VWP) through the afternoon, and then low-level flow will weaken by this evening. A couple of tornadoes and isolated wind damage/large hail will be possible this afternoon into this evening. $$