Crops in the soil and outdoor containers need clear plastic or polythene overhead protection to keep off excessive rainfall as well as to raise the temperature a little.

Such flooding generally occurs as a result of excessive rainfall, excessive snowmelt, excessive runoff, levee failure or a combination of these sources.

Easterly (tropical) waves during this season occasionally bring excessive rainfall, while infrequent hurricanes may be accompanied by unusually heavy amounts.

Typhoons frequent the island, which can lead to excessive rainfall.

Throughout the state, excessive rainfall caused many rivers to overflow.