Cork city has been hit by flooding with the worst winds expected from 11am across Cork and Kerry and later tonight in Mayo and Galway.
Six weather alerts are in place, with a Status Red wind warning for Cork and Kerry that has been active from 6am remaining place until 9pm.
“Due to a combination of high waves, storm surge and high tide, coastal flooding is expected, and disruption to power and travel are likely,” the alert states, while Clare will be under a Status Red from 4pm.
In all three counties, wind speeds in excess of 80 km/h with severe or damaging gusts in excess of 130km/h have been forecast by Met Éireann.
The weather warnings will be in place until 9pm tonight, when these counties will enter a Status Orange wind warning, which will remain in place until 6am tomorrow morning.
Status Orange wind warnings will also be in place for Limerick, Waterford, Galway, Mayo, Wexford, Dublin, Louth, Wicklow and East Meath.
A Status Yellow wind warning will be in place for all of Ireland until 6pm tomorrow.
Fallen power lines have already affected supply to thousands of people, mainly along the southern and western coasts, it has been reported.
Meanwhile, schools and colleges in all counties covered by Status Red and Orange weather warnings remain closed.
The Minister for Education Norma Foley told Morning Ireland that orange zones have the potential to become red warning areas at various points throughout the day.
Bus Éireann also announced that school transport services in counties covered by the Red and Orange warnings are also cancelled, while all services in Cork, Kerry and Clare have been temporarily suspended.
However, all scheduled Dublin Bus services are currently operating as normal.
Gardaí are advising that all unnecessary travel should be avoided in the red and orange counties while the warnings are in effect.
The Road Safety Authority said people should avoid any travel in areas where a red warning is in place.
The Coast Guard has also appealed to all mariners and coastal communities to be mindful of the severe weather warnings.
They are also appealing to anybody considering any form of coastal or open water recreation to be mindful of the risk posed by forecasted storm conditions.
A number of Covid-19 test and vaccination centres in impacted counties are also closing with full details on the HSE website.
The UK Met Office has also issued a Status Yellow wind warning for Northern Ireland and said strong winds are expected to affect most areas with the potential for travel disruption.
People are also being advised to remain aware of the potential dangers once the storm has passed – with road users potentially having to seal with flooded roads and downed pylons, lines, trees, branches, and other debris which could block roads.