Here is a look at the new Day One Convective Outlook issued by the SPC…
It generally goes from Centre to Birmingham to Clanton to Lanett.
Overnight runs of the NAM and the early morning runs of the RUC models do show some instability (up to about 500 j/kg of CAPE for BHM by noon, LI slightly negative at -1 to -2) and a tremendous amount of shear (up to 400 m2/s2.
This could be another one of those low instability, high shear days where low topped supercells can cause some big problems.
A squall line is moving through Mississippi. Ahead of this line, any supercell storms which do manage to form could become severe and even produce tornadoes today.
Stay close to a reliable source of severe weather information throughout the day as this weather situation unfolds.
