It's been another nervous night for West Coasters, with a red heavy rain warning remaining in place

Westport residents were urged to self-evacuate last night, with more severe weather expected today.

Work to clear away a large slip blocking the Seddonville settlement hasn't been possible during the night.

But Buller district controller Chris Hawker says Emergency Management haven't received any more major reports, other than surface flooding.

He says the heavy rain expected around 3am hasn't eventuated - but the rivers are still slowly rising in some areas.