(Undated) — Forecasters warn Alberto is a still-menacing depression after its Memorial Day landfall, scattering heavy rains around the South amid heightened risks of flash flooding.

Subtropical Storm Alberto made landfall Monday afternoon in the Florida Panhandle and then weakened to a depression overnight as it churned inland.

Though the storm had weakened, forecasters, warn, it still is capable of potentially life-threatening flash floods in coming hours or days as the vast system spreads over much of Alabama and large areas of Georgia – and eventually into Tennessee and the Carolinas.

Authorities did not directly attribute any deaths or injuries immediately to Alberto. But in North Carolina, a television news anchor and a photojournalist were killed Monday when a tree uprooted from rain-soaked ground toppled on their SUV as they covered storms on the fringes of the big, ill-defined system.