Large volumes of mud and peat were swept down a hillside in the Orra Mountain area, between Cushendall and Magherahoney, on Saturday.Farmer and eye-witness Dermot McAleese captured the scenes on camera as he checked on his sheep, after heavy downpours for much of the day."It was quite scary actually to see how strong the force of the water was - big chunks the size of cars were sliding down the mountain," he told UTV on Monday.He added that deep cracks had been left in the ground and that the main road in the area had been blocked in places by the debris.One of his sheep was found dead in a crevice created by the landslide and he is continuing to check on the animals in case any more fall into the deep trenches.I've never seen anything like this before and my father has farmed up there for 70 years and he's never experienced anything like this in his life.Dermot McAleeseCo Antrim was particular hard hit by the inclement weekend weather, with 40.8mm of rain recorded in just six hours in Ballypatrick Forest.Among other landslides was one incident which led to the Coast Road being closed between Waterfoot and Carnlough."It's not that unusual to see some heavy - even torrential - downpours in August," Kirk Waite from the Met Office said, explaining that it can be due to the combination of higher temperatures and moisture from the ocean.A similar mixed picture remains for much August, with some fine spells predicted along with more heavy downpours.A yellow alert has been put in place by the Met Office for Co Antrim on Tuesday.According to the Chief Forecaster, the thundery showers will develop throughout the morning and last for much of the day."As is often the case with showers, some places will escape with a dry day," the warning states."However, where they do occur, they could be heavy and prolonged bringing a risk of localised surface water flooding."Rainfall amounts of 15mm per hour are possible with a risk of 25mm in 3 hours."Yellow Warning of Rain for Northern Ireland : County Antrim, County Armagh, County Down, County Fermanagh, Cou... http://t.co/MUX8e37WR2— Met Office warnings (@metofficeNI) August 4, 2014PIC: Dermot McAleese shows how deep the crevices are that were left behind by the landslide in the Orra Mountain area of Co Antrim.