The Billings National Weather Service has issued a Flash Flood Warning for North Central Carbon County until 4:30 a.m. Wednesday.
Storms with rainfall rates of 1 to 2 inches per hour have been observed in the warned area.
Rockvale, Joliet, Fromberg, Edgar and Silesia could all experience flash flooding.
Heavy rain is expected to persist overnight and into Wednesday.
Streams, creeks, ditches and rivers may all experience a rapid water rise and flooding.