Once the low pressure system forms, it's expected to move northwest through conducive environmental conditions, hurricane forecasters said at 1 p.m. Thursday. The disturbance had no chance of forming into a tropical depression or storm within the next two days Thursday afternoon and a 20% chance of forming in the next week.

Torrential downpours won't be limited to Florida's coast. Forecasters warned massive Hurricane Helene could bring flooding to several states.