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Saturday 17 March 2018

Heavy thundery downpours to hit tomorrow as aftermath of Hurricane Gert makes landfall

Met Éireann is forecasting heavy rain
Met Éireann is forecasting heavy rain

Cillian Sherlock

We’re set for a few days of tropical feeling air thanks to the aftermath of the Altantic Hurricane Gert, bringing with it humid conditions of higher temperatures and heavier rain.

“The main thing involved in this event is to recognise it’s not a wind event and it’s not a storm. It’s basically just a rain event and there will be some heavy, thundery bursts of rain,” according to Met Éireann forecaster Liz Walsh.

“But in some places people will find that it feels mild, heading into the low 20s by day. If you get clearance and get some sunshine it’ll feel remarkably pleasant,” Ms Walsh added.

We will have bright and sunny spells today with some cloudy periods will see highest temperatures of 15 to 18 degrees.

 “There are a few showers around but they should die out in the afternoon for a dry late afternoon and evening,” she said.

While it is feeling cool this morning from a fresh north-westerly breeze this is due to turn around to less cool south-westerly winds.

Lowest temperatures tonight of 9 to 12 degrees, staying mostly dry with rain developing in the southwest before dawn.

“The air will really feel extra tropical but we won’t feel that until nearly dawn tomorrow,” Ms Walsh added.

Tomorrow, this change is set to move over Munster in the morning where it will feel mild amid spells of heavy rain.

The rain will become more widespread over Munster by noon before establishing itself over most areas by the early evening, bringing some heavy thundery falls of rain. Top temperatures of 16 to 19 degrees.

“There’s still some uncertainty with regards to where it’ll fall the heaviest. At the moment it looks like Ulster, Connacht and west Munster are in the firing line, especially areas on higher ground,” Ms Walsh added.

It appears there will be around 20-24mm of rain across the country while some inland parts of Munster and south Leinster may see only half that with only one thunderstorm.

“I am sure it is going to feel milder than it is now and progressively milder through Sunday,” she said.

On Sunday night the rain will be heavy and thundery especially over Connacht and west Ulster with some local spot flooding and lowest temperatures of 12 to 15 degrees.

Monday will continue to be humid with general top temperatures of 17 to 19 degrees although any areas in sunny breaks may see up to 21 degrees.

“On Monday it might feel ‘fierce mild’ - like something said on Father Ted,” she added.

The west and northwest will see heavy rain while Leinster and east Munster may see some sunny spells developing.

Lowest temperatures of 13 to 14 degrees expected for a close overnight on Monday, with some mist and drizzle.

The dry sunny spells will be interspersed yet again with showery rain on Tuesday but will feel close and humid in temperatures reaching the low twenties in any sunshine.

Wednesday and Thursday will be fresh and breezy with highest temperatures of 16 to 19 degrees.

Ms Walsh said tropical cyclone activity can mean forecasting models become more unreliable, and with Tropical Storm Harvey brewing in the Caribbean the uncertainty may continue.

“It’s coming together, we’re more sure of areas expecting heaviest rainfall,” she added.

She said that this spell of weather will fall back after Wednesday.

“This is an episode lasting Monday and Tuesday mainly. I think after Wednesday we’ll go back to less tropical feeling air,” she said.

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