The national weather agency, IPMA, has placed all of mainland Portugal on alert until Monday for heavy rain accompanied by winds of up to 100 kmh (60 mph).

With rivers already swollen and the soil waterlogged, Portugal's civil protection service warned the fresh rainfall could cause flash flooding in urban areas and trigger landslides and rockfalls.

Storm Kristin's hurricane-force winds struck central and northern Portugal overnight Tuesday, causing flooding and property damage and disrupting travel. It also tore down about 5,800 trees across Portugal.

Prime Minister Luis Montenegro on Thursday declared a state of calamity, one peg below a state of emergency, for the hardest-hit areas, giving authorities the power to enforce safety measures and coordinate emergency responses.

He has called a cabinet meeting for Sunday to address the recovery plans for affected areas and response measures to the fresh rain, his office said in a statement.

Some 198,000 customers were still without power Saturday afternoon, mainly in the Leiria district of central Portugal, according to power company E-Redes.

A 73-year-old man died Saturday after falling from a roof while replacing tiles in the town of Batalha near Leiria, local officials said.

Leiria mayor Goncalo Lopes appealed for volunteers to help repair damaged roofs before more rain arrives Sunday.