The Hurricane Hunter aircraft of the U.S. National Oceanic and Atmospheric Administration (NOAA) were deployed to Shannon Airport on 22 January, in order to conduct operations studying Storm Éowyn as it approached landfall.

Winds would briefly decrease as the storm's centre passes, primarily affecting Northern Ireland and western Scotland, before intensifying again.

[29][30] Additional areas likely to be affected include Tayside and Fife, Grampian, Highlands and Eilean Siar, Northern Ireland, Orkney and Shetland, southwest Scotland, Lothian Borders, and Strathclyde.

Their advice is clear that potential impacts include danger to life, structural damage to property, and transport and power disruptions".

[34] On 24 January at around 05:00, a wind gust provisionally measured at 183 km/h (114 mph) was recorded at Mace Head in Connemara in County Galway.

[36] Moneypoint weather station (anemometer height 40 m (130 ft) above ground level) measured a 159.8 km/h (99.3 mph) wind gust at 04:10.

The intensity of winds at Ceann Mhása, Belmullet, and Markree caused data interruption to local weather instruments.

[37] At 09:00, 815,000 houses, farms and businesses on the island of Ireland were suffering from power outages, particularly in counties Galway and Mayo and 115,000 homes, mainly in Munster, were without water.

These hubs provide "basic needs such as water, hot food, phone charging, broadband access, shower and clothes washing facilities".

Technicians from Austria, Finland, France, Great Britain, Germany, Netherlands and Norway are assisting with repairs in the hardest-hit areas.

[52] On 5 February 2025, it was announced that a man lost his life when his vital medical devices, including sleep apnea equipment, failed due to power outages during Storm Éowyn, Sinn Féin TD Rose Conway-Walsh told the Dáil.

Conway-Walsh, who had feared such tragedies would occur, stressed the urgency of addressing these risks and offered condolences to the affected families.

[53] Additionally on 5 February, during a Dáil debate on Storm Éowyn, Minister Dara Calleary said the Department of Social Protection had provided €727,792 in payments to those without power.

Sinn Féin's Claire Kerrane criticised the Government for delayed responses, especially in Roscommon and Galway, and called for better protection of power lines.

Other Sinn Féin TDs highlighted ongoing challenges, while Labour leader Ivana Bacik shared the emotional toll on families affected by power outages.

The NECG held a meeting on Sunday (9 February) to coordinate the ongoing restoration of essential services like electricity, water, and telecommunications.

ESB Networks aims to complete most of the reconnections by Sunday (9 February) evening, though some areas will remain without power overnight.

Technicians from Austria, Finland, the UK, Germany, and Norway are assisting alongside 2,500 ESB Networks personnel, partner contractors, and additional support from other regions of Ireland, including experienced retirees.

Study hubs have been set up for students preparing for exams who are struggling with internet access, and these will remain open throughout the week.

Sinn Féin has called for expanded support to include businesses and community groups, alongside a goodwill payment from ESB based on outage duration.

The Government defended its response, stating a comprehensive review will be conducted to improve future resilience, while ESB maintains it does not compensate for outages caused by severe weather.

[4] Storm Éowyn made impact in Scotland on 24 January 2025, leaving around 117,000 homes across the country without power and electricity supply, with wind speeds as high as 164 km/h (102 mph) recorded on the Tay Road Bridge.

At around 14:15, Drumalbin weather station in South Lanarkshire recorded 163 km/h (101 mph), the highest wind gust in Scotland from Storm Éowyn so far.

[62][needs update] Two people suffered injuries from storm related accidents in Scotland,[2] one of whom – a 19-year-old from East Ayrshire – subsequently died.

Swinney also joined a meeting of the Cabinet Office Briefing Rooms which was chaired by the Chancellor of the Duchy of Lancaster, Pat McFadden.

Local authorities – who are responsible for school closures - will be working to ensure all buildings meet the required safety standards to reopen safely to pupils".

[68] Swinney stated that it was "clear the severity of Storm Éowyn will continue into next week and this will have an impact on the speed at which utilities and local services can fully resume".

[67] By the evening of 26 January, the Scottish Government stated that "significant progress" had been made regarding the recovery efforts across the country, but some impacts from the storm were "set to continue".

Approximately 265,000 people had their electricity restored by the evening of the 26 January, with road, ferry and aviation networks returning to "a near normal service".

[52] Places affected were Ysbyty Gwynedd hospital in Bangor and the communities of Bethesda, Tregarth, Llanbedr, Blaenau Ffestiniog and Menai Bridge on Anglesey.