The Storm Prediction Center (SPC), NOAA’s National Weather Service, warned Tuesday (Nov. 25) of isolated severe thunderstorms for parts of the Southeast and Deep South, with the threat lasting from the morning into the early evening hours.
Forecasters say a few tornadoes are possible, especially in eastern Mississippi and central Alabama, where conditions may support rotating storms for a short time.
A fast-moving line of storms is weakening
A fast-moving line of showers and isolated thunderstorms crossed northern Alabama early Tuesday before moving into northwest Georgia.
However, the storms are entering an area of limited instability, with surface dew points only in the mid-50s, reducing the potential for damaging gusty winds in the morning.
Afternoon rebuilding
As the earlier storms move through, southerly winds are expected to bring slightly wetter and more unstable air back into east-central Mississippi and central/northern Alabama.
Although large-scale forcing is weak, daytime heating may produce scattered thunderstorms in the early afternoon.
Supercell potential
Any storms that do form will develop in an environment with 20-30 knot low level southerly winds and enough deep layer shear to support transient supercell structures.
The SPC says this setting preserves the need for moderate risk despite weaker enforcement mechanisms.
Gusty winds and a few tornadoes remain the main concern.
