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Dublin: 13 °C Saturday 15 August, 2020

Weatherwatch: Risk of flash floods in Munster, with heavy rain nationwide

Whatever happened to Leaving Cert weather? If you have a hatch, it’s time to batten it down.

We hate to burst your post-Bank Holiday bubble, but...
We hate to burst your post-Bank Holiday bubble, but...
Image: Mark Stedman/Photocall Ireland

A VERY WET SPELL of weather that began overnight will continue right through Thursday, and may continue into Friday morning.

An area of low pressure moving up from the south will bring heavy rain and strong winds right across the country, bringing with it heavy rainfall for a 36-to-40-hour period.

The rain, which was already making its presence felt along the south coast last night, extended further north overnight with rainfall totals rising, especially in Munster.

By rush hour this morning, the rain will turn heavy in Dublin, Leinster and Connacht. This rain will eventually push up into the north and northwest with heavy bursts likely here during the morning and into the afternoon.

The intensity of the rainfall will decrease by the late afternoon, but it will remain persistent with the fronts returning southwards across Ireland later on during Thursday evening and the first part of Friday morning.

Totals of 25 to 50 millimetres (one to two inches) can be expected, but may be higher in parts of Munster. This will lead to flooding in places with rivers swelling and surface water on roads.

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Meanwhile, winds from the south-east – later moving easterly and north-easterly – will lash the east coast with gusts of up to 60kmh for some time, while the south-western coast can expect winds potentially of up to 70 to 80kmh.

In summary, then: a cold, wet and windy day, with maximum temperatures of 11 to 14°C.

Karl Mehlhorn is the founder of the Irish Weather Network. Follow on Twitter @Irelandsweather.

  • Met Éireann has issued a weather warning, forecasting rainfall of between 25-45mm in Leinster and Ulster, rising to 35-60mm in Connacht and Munster – and possibly up to 90mm in some places.

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