Heavy rainfall is possible across southern Iowa and northern Missouri overnight. There is a potential for several inches of rain to fall in a short time, which could lead to flash flooding. Flash flooding at night is particularly dangerous.
A band of heavy rain will fall across southern Iowa or northern Missouri overnight. Within this band, several inches of rainfall will be likely. There is a potential for this rain to fall in just a few hours. This could lead to dangerous flash flooding.
Withing the heavy rain band, rapid rises on streams and rivers are expected. Some roadways may be affected which is particularly dangerous at night. Anyone planning outdoor activities or traveling through southern Iowa tonight, should closely monitor the latest weather updates and potential warnings.