Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
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118 ACUS01 KWNS 251222 SWODY1 SPC AC 251221 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0621 AM CST Tue Nov 25 2025 Valid 251300Z - 261200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING FROM EAST-CENTRAL MISSISSIPPI INTO CENTRAL ALABAMA.... ...SUMMARY... Isolated severe storms are possible across parts of the Southeast/Deep South this morning into the early evening hours. A couple tornadoes are possible in parts of eastern Mississippi and central Alabama. ...MS/AL/GA... A progressive mid-level shortwave trough is moving across west TN/northern MS. Strong forcing for ascent ahead of this trough has resulted in a fast-moving line of showers and isolated thunderstorms across northern AL this morning - now moving into northwest GA. These storms are tracking into a progressively less unstable air mass, with surface dewpoints only in the mid 50s. This should limit downdraft penetration to the surface and diminish the risk of gusty/damaging winds in the next couple of hours. In the wake of this activity, southerly low-level winds will allow gradual return of the moist and moderately unstable air mass into east-central MS and central/northern AL. Large-scale forcing will be weak the rest of the day, but pockets of daytime heating may be sufficient for the re-development of scattered thunderstorms by early afternoon. Those storms that form will be in an environment of 20-30 knots of southerly low-level winds and sufficient deep-layer shear to promote transient supercell structures. Therefore have maintained the ongoing SLGT risk, despite weak forcing mechanisms. Gusty winds and a risk of a few tornadoes are the main concern. ..Hart/Dean.. 11/25/2025 $$