A Status Orange wind warning is in effect across the country as Storm Bram tracks northwards.
There have been some incidents of flooding and fallen tress, particularly in the south of the country where the storm first made landfall.
Dungarvan and Tramore in Co Waterford experienced some flooding this morning as did the quays in Cork city at high tide around 9am.
Services at Waterford train station were suspended for a time due to tidal flooding on the line but have since resumed.
Some 22,000 homes and businesses are without power, predominantly in counties Cork, Tipperary, Wexford, Limerick and Kildare.
Further power outages can be expected throughout the day, ESB Networks said.
The Department of Education confirmed that while the vast majority of schools opened today as scheduled, around 70 schools, predominantly located in coastal areas in the west of Ireland, decided to close.
Watch: Storm Bram brings flooding to Cork city
While no major incidents may have occurred so far, the message from officials is that further strong winds are forecast this afternoon and evening and people should continue to take the appropriate precautions.
Meanwhile, a number of flights have been cancelled at Dublin, Cork and Shannon airports while ferry sailings have also been affected as Storm Bram makes landfall.
The first Status Orange wind warning came into effect at 7am for counties Carlow, Kilkenny, Wexford, Wicklow, Cork, Kerry, Limerick, Tipperary and Waterford. It will remain in place until 4pm.
A second Status Orange wind warning for Cavan, Monaghan, Clare, Dublin, Kildare, Laois, Longford, Louth, Meath, Offaly and Westmeath, as well as all of Connacht came into effect at 11am. It will remain in place until 7pm.
Meanwhile, the alert for Donegal came into effect at 2pm and will remain in place until 9pm.
Follow live: 22,000 without power as dozens of flights cancelled
Met Éireann is warning of the potential for flooding of low-lying coastal areas, especially during high tide as well as wave overtopping.
It said travel conditions may be difficult and is warning that debris or loose objects may be displaced.
An Amber wind alert is also in place for counties Antrim, Fermanagh, Tyrone and Derry and will remain in effect until 7pm.
Waves spilled over onto the road in Tramore, Co Waterford
Flooding caused a road closure on Wandesford Quay in Cork city this morning
The UK Met Office said the storm will bring a “spell of extremely strong winds” that may lead to significant disruption.
A Yellow wind alert for counties Antrim, Armagh, Down, Fermanagh, Tyrone and Derry came into effect at 9am and will remain in place until 10pm.
A Status Red Marine Warning has also been issued for western and southern coastal areas today.
The warning is from Carnsore Point to Roche’s Point to Loop Head from 9am; and from Loop Head to Ceann Iorrais (Erris Head) to Malin Head from noon.
A Status Orange storm warning has been issued for all other coastal areas and on the Irish Sea.
73 flights cancelled at Dublin Airport, further cancellations expected
A spokesperson for Dublin Airport said 73 flights have been cancelled while further cancellations are possible later today.
Media Relations Manager at daa Graeme McQueen said that the situation has gotten worse and that more issues are expected as the afternoon progresses, particularly in relation to flights between the UK and Ireland.
The airport has advised passengers to contact their airline directly for updates regarding the status of their flight.
Watch: Flooding and strong waves as Storm Bram hits Waterford
A spokesperson for Shannon Airport said two flights were cancelled this morning and a small number of additional services are experiencing delays.
A number of ferry sailings have also been cancelled today due to adverse weather conditions with passengers advised to check with their ferry operator for the latest information and details regarding alternative sailings.
Met Éireann has warned that there was a “significant chance” Storm Bram would bring coastal flooding along the south and west coasts at high tide this morning, and along the east coast during the afternoon.
The forecaster also said the situation will be exacerbated by any rain falling on already saturated ground.
There was flooding on Wandesford Quay in Cork city around 8am this morning.
People are being advised to take the necessary precautions and allow extra time for travel today.