So Wednesday... I admit I was a bit caught off guard by the last sentence in this afternoons AFD
A slow moving frontal boundary will approach our region late Tuesday
and pass through the region on Wednesday. Shower activity will
increase ahead of the boundary Tuesday evening and become more
widespread on Wednesday. Debris clouds from morning convection will
likely limit afternoon temperatures to the 80s but CAPE is still
forecast to be between 1500 and 2500. PW`s are expected to remain
elevated above 2 inches with storm motions becoming low around 5
knots later in the afternoon on Wednesday. Based on model soundings
and guidance, the slowest storm motion along with the best lift will
occur later in the afternoon on Wednesday and into the evening
periods. The combination of high PW`s, low storm motion, CAPE above
2000 and the forcing from the front will lead to a threat for SVR
weather and a bigger threat for flooding on Wednesday. The main
limited factor on the SVR threat will be a lack of good shear which
should prevent long lasting supercells.