Met Éireann issue weather advisory as storm 'deepens' and bears down on Ireland

Met Éireann has issued a weather advisory and is highly likely to release full weather warnings over a potential named storm this week, the forecaster has said.

The advisory has been issued for the entire country but the west of the country is likely to bear the brunt of the low pressure system sweeping towards Ireland.

"Exceptionally high supermoon spring tides with coastal flooding possible. Wind warnings expected Saturday night and into Sunday," the advisory states.

“There is still a lot of uncertainty in the details at this time, but the potential is there for strong winds and therefore a named storm on Saturday night into Sunday,” Liz Walsh, Met Éireann Meteorologist said.

Met Éireann also released a full commentary on the potentially wild weather heading for our shores.

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"This Friday, a brief period of heavy rain and strong winds across the country is expected," it said.

"We are monitoring another low-pressure system which could undergo rapid deepening on Saturday with the potential for strong winds and potentially a named storm; however, uncertainty still exists about this event.

"Additionally, we are currently in one of the highest Spring tides of the year and this, tied in with any strong winds and high waves will increase the risk of coastal flooding."

Going into further detail, the commentary said: "The Jet Stream is expected to become very active across the Atlantic later this week and into this weekend which allowing it to pick up low-pressure systems and deepen them as they cross the Atlantic.

"The first low pressure system of interest is currently off the coast of Newfoundland, (Canada) as of Wednesday 16th October, and this system will undergo a period of deepening as it tracks towards Iceland by Friday night.

"Even though the low itself won’t impact us directly, an associated active frontal system will move eastwards over Ireland on Friday. All areas are likely to see a brief period of heavy rain and strong winds during the day on Friday.

"We are currently in one of the highest Spring tides of the year and unusually high tides mean coastal flooding is possible. These exceptionally high Spring tides are due to the current proximity of the moon to the earth leading to an increased gravitational pull. Given the high astronomical tides any strong winds and high waves will increase the risk of coastal flooding, especially along Atlantic coasts," it added.

A second low pressure system is causing more concern among forecasters.

"Our meteorologists’ gaze is also turning towards a different area of low pressure, which will be developing in the western North Atlantic, about 500 nautical miles southwest of Nova Scotia," the statement from Met Éireann read.

"This low-pressure system is expected to travel quickly eastwards over the Atlantic this weekend. Current guidance suggests that this low will be on the southern side of the Jet Stream on Friday and will then cross over to the northern left exit region of the Jet Stream on Saturday. This system is then expected to undergo a period of rapid deepening, creating a storm depression as it swings up to the northwest of Ireland around Saturday night or Sunday morning.

"Updated information can be expected as the situation evolves and we analyse model data," Met Éireann concluded.