Several months of rain could fall in some places when a tropical weather surge drenches every Australian state next week.

Weatherzone is forecasting a nationwide soaking that could last for around seven to 10 days.

Some locations could be pelted by months of rain in just a few days, caused by a surge in tropical moisture.

The big wet is expected to begin in Western Australia and spread over central Australia before forming a rainband over southeastern and eastern Australia.

“Rain and thunderstorms will increase over the north of WA this weekend as tropical moisture feeds into a deepening area of low pressure,” says a Weatherzone bulletin.

“This wet and stormy weather will then spread over central Australia on Monday before forming a broad rainband that will drench southeastern and eastern Australia between Tuesday and the end of next week.

“This weather system will cause a nationwide soaking that could last for around seven to 10 days.”

Weatherzone‘s maps show large parts of NSW are looking at accumulated falls upwards of 30 millimetres.

“Some areas in WA and the NT that typically receive 20 to 50 millimetres of rain in September could pick up about 50 to 100 millimetres from this event.”

Weatherzone warned of flooding and potential travel hazards.

“The widespread nature of this rain event also increases the risk of flooding and travel disruptions in multiple states.

“Anyone travelling by road or rail in the next couple of weeks should keep an eye on the latest warnings and road/rail conditions across the country.”