If the conditions are right the mold spores could be colonized in 24 to 48 hours.
It is essential to dry the area as quickly as possible following a storm to prevent the growth of mold. In the first 48 hours following the storm, moisture from rain can begin to form colonies, and they will continue to grow as long as the area is still damp. Mold can grow on many materials like ceiling tiles, insulation, cardboard, and wood. It can also grow in paints and drywall.
Mold is particularly harmful to those who suffer from respiratory issues or allergies. It is crucial to act swiftly before mold starts to grow.