Wettest twenty-four hours in two months

The thermometer on Saturday eased upwards, under a cloudy sky that produced bands of drizzle, to 10.9C being 3C above average. However, the deep depression just to the west of Ireland on Saturday arrived with a vengeance during the evening. An intense and narrow rain band produced the first measurable rainfall at 20.20 but at 21.30 was extremely heavy falling at a rate of 110mm/hour, briefly. The temperature began to fall after 20.30 with a low of 4.8C (+2.5C) at 06.37 on Sunday. The strong gusts of wind peaked at 35mph during the rainstorm.

The daily rainfall total was 24.3mm, which was the wettest day since 1st November (28.7mm). The additional rainfall took the monthly rainfall total to 130.6mm, which is 141% of the 39-year average and the wettest December since 2013 (157mm) – at the moment with one day to go.

Sunday revealed brief breaks in the cloud initially but the rain radar indicated much showery activity approaching our area as the day progresses.

The depression that has been to the west of Ireland will progress eastwards to be over the Irish Sea by noon this will see the wind increase and the showery activity also increase. The central pressure was an extremely low pressure yesterday of 967mb. The barometric pressure here at 08.00 was 986.6mb with a low of 985.5mb just before dawn.

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