Flash flooding has caused damage to homes and businesses in Donegal and across the north-west.
ozens of people had to be rescued from their homes by emergency services in the county, as well as in Tyrone and Derry.
One-third of the average total monthly rainfall for August fell in a single hour
in parts of the north on Saturday evening.
In Northern Ireland, Castlederg monitoring station, in west Tyrone, recorded rainfall of 30mm in the hour between 7pm and 8pm, the Met Office said as householders continued to clean up following widespread flooding and destruction.
The Northern Ireland Fire and Rescue Service (NIFRS) fielded 106 emergency calls between just after 7pm on Saturday until 1.30am yesterday morning, with firefighters responding to 49 incidents, including rescuing one person from a vehicle and five trapped in flooded properties.
No further flood call-outs were reported up to yesterday evening despite a yellow weather remaining in place and the rain continuing to drench parts of the region.
Teams from the Department for Infrastructure responded to almost 300 calls and provided assistance to affected residents and businesses throughout the night. It is estimated that more than 8,000 sandbags were deployed
In total, the rain gauge at Castlederg recorded rainfall of 44.4mm in the 24-hour period from 10pm on Friday. That represents half the average total for the month. A further 10mm was recorded through early yesterday evening at the same station.
Castlederg councillor Steven Edwards said: “I’ve visited and spoken to a number of homeowners and businesses across the Derg who have been impacted by flooding.
“Apocalyptic levels of rain and surface water for many. My heart goes out to them all.”
While the west, mostly within the Derry and Strabane District Council area, was soaked the worst, far above average rainfall was also recorded on the north coast, with the Giant’s Causeway station registering 24.2mm.