Storm waves crashing against a harbour wall

Storm Hannah

On Thursday 25th April an area of low pressure off the coast of Canada began to journey east across the Atlantic towards the UK. Mid-way across the ocean on Friday 26th the low began to rapidly deepen, and that afternoon Met Éireann named it Storm Hannah, issuing a Red Wind alert for the southwest of Ireland – the highest level in the Irish warning system. A Yellow warning for wind was also issued by the Met Office for Wales and much of England. The low centre tracked through Ireland and across the north of England through Friday evening and overnight into Saturday. Western coasts saw the strongest winds, with a maximum wind gust of 82mph recorded at Aberdaron in Gwynedd, Wales, but strong winds also occurred over large parts of Northern Ireland and the southern half of England. Meanwhile heavy showers of rain also affected Wales and Northern Ireland. This unsettled start to the weekend was in stark contrast to the sunshine and warmth that many people experienced over the previous Easter Holiday weekend.

Storm Hannah Impacts

In Ireland over 32,000 properties lost power, along with several thousand more in Wales. Roads and railways were blocked due to fallen trees and the M48 Severn Bridge was closed for a time. Numerous recreational events on Saturday across England, Wales and Ireland were cancelled due to strong winds.

Site Name Area Max Gust (mph)
Aberdaron Wales 82
Pembrey Sands Wales 78
Capel Curig Wales 78
Mumbles Head Wales 77
Aberporth Wales 74
Mildford Haven Wales 73
Needles England 66
Avonmouth England 60
Valley Wales 60