By Akhtar Soomro DALORI BALA, Pakistan (Reuters) -Residents in a hilltop village in northwest Pakistan described how raging waters and rocks had swept through their homes after a cloudburst, as authorities said on Tuesday the toll from floods in the region over the past five days had risen to 365.

The sudden and intense weather event is almost impossible to forecast and often leads to deadly flash-flooding and landslides

Sudden floods triggered by heavy rains have killed more than 200 people across parts of Pakistan, India-administered Kashmir and Nepal, authorities have said, as scores of people remain missing.

According to the National Disaster Agency, the intensity of this year's monsoon is about 50% to 60% higher than last year.

Authorities have warned of more deluges and possible landslides between now and Tuesday. Heavy monsoon rains have lashed the country since June and killed more than 600.

More than 150 people are missing in northwest Pakistan, the head of the provincial disaster authority said Sunday, after flash floods that have killed at least 344 people in the country.

Khyber Pakhtunkhwa government's MI-17 helicopter had taken off from Peshawar for Bajaur when contact was lost over Mohmand tribal district, according to initial reports.