Remote towns across the Kimberley recorded heavy rainfall over the weekend as ex-Tropical Cyclone Luana crossed the Western Australian coast and tracked inland.

The system weakened to a tropical low after crossing the Dampier Peninsula on Saturday afternoon, but the Bureau of Meteorology says it continues to generate widespread rainfall as it moves south-east through the region.

Rainfall totals through Sunday were significant across parts of the Kimberley.

Derby recorded around 190 millimetres of rain over a 24-hour period, while nearby sites and communities across the Dampier Peninsula and northern Kimberley saw widespread falls between 100 and more than 200 millimetres, according to Bureau observations.

The Bureau has warned the remnants of ex-Tropical Cyclone Luana are expected to continue producing rain as the system moves further inland, with parts of interior WA likely to be affected into the middle of the week.

A Severe Weather Warning remains current for damaging winds and heavy rainfall across parts of the Kimberley, while a Flood Watch has been issued for several catchments, raising the risk of river rises, road closures and isolated communities.

Authorities have urged residents to remain cautious even as winds ease, warning that saturated ground could lead to flash flooding in low-lying areas.

People in affected areas are advised to monitor conditions and stay up to date with the latest warnings through the Bureau of Meteorology website or the BOM Weather app.