A Status orange wind warning is in place for the whole country this morning due to Storm Ciara.
The warning is in effect until midday, with gusts of up to 130 kilometres per hour expected.
There's a significant risk of coastal flooding, especially along western and northwestern coasts.
Storm Ciara is also affecting power - with thousands of homes and businesses experiencing a loss of supply this morning - including over 400 customers in the Ballyhaunis area without power.
ESB Networks says it's working to repair faults as quickly as possible.
Mayo County Council crews have been out through the night, dealing with flooding in many areas including: Pontoon, Balla, Bohola, Swinford, Kilkelly, Kiltimagh, Kinaff, Brackloon, Hollymount, Ballina, Castlebar, Charlestown. Belmullet.
Crews will continue to respond to issues today as they arise.
Mayo County council encourage the public to exercise extreme caution during the period of this orange weather warning
Updates will continue to be made on mayo county council social media channels.
Fallen trees are reported in several locations of Co Roscommon, while in Sligo, there's severe flooding on the Geevagh to Ballymote road.
The Mayo ladies football match today is one victim of the severe weather.
The Lidl NFL round 3 game between Mayo and Waterford, due to be played in Swinford, has been postponed due to the inclement weather.
The Mayo V Meath Allianz league game is going ahead, following a pitch inspection in Navan this morning.