Met Éireann says Storm Atiyah is forecast to produce strong winds and heavy rain through to Monday morning.
There are several weather warnings in place - including a red wind warning for Kerry.
The forecaster says west to southwest winds veering northwest will reach average speeds in excess of 80km/h - with gusts in excess of 130km/h for a time later.
It says extreme caution is advised, especially near the coast and on high ground.
"Due to a combination of high seas and storm surge there is a possibility of coastal flooding", it says.
The red alert is in place from 4.00pm until 7.00pm.
Status Red - Wind warning issued for Kerry.
Valid from 16:00 Sun 08-Dec-2019 until 19:00 Sun 08-Dec-2019 pic.twitter.com/IfaASSWGJk— Met Éireann (@MetEireann) December 8, 2019
Kerry County Council has met with An Garda Síochána and the Health Service Executive (HSE).
The council is advising people to stay indoors for the duration of the red warning - and to stay away from exposed coastal areas.
Response agencies are on standby in Kerry to respond to emergencies resulting from the storm.
Status yellow winds will affect the rest of the country.
Winds will increase further reaching orange level for Donegal, Galway, Leitrim, Mayo, Sligo, Clare, Cork, Kerry and Limerick.
A yellow wind warning will continue for the rest of the country.
See a detailed weather forecast here
A spell of heavy rain was forecast for all areas on Saturday evening, and will be followed by squally heavy showers during Sunday.
Our Atlantic chart shows precipitation and pressure forecast in 6 hour intervals for the next 7 days.https://t.co/9Giuj4CR5m
The national forecast and the national outlook for the next few days is available here. https://t.co/9gKN6SVok4 pic.twitter.com/eBxKJ7z52A— Met Éireann (@MetEireann) December 8, 2019
The National Directorate for Fire and Emergency Management (NDFEM) says its severe weather team have been monitoring Storm Atiyah, with Met Éireann, as it moves towards Ireland.
NDFEM have been in contact with local authorities, and standard emergency response and coordination arrangements - as well as public information messaging - have been activated.
The NDFEM has also contacted the Department of Transport, which will relay the current warnings to transport operators.
The Coast Guard is issuing public safety advice for all coastal areas.
This storm will coincide with neap tides along the west coast.
But based on the current forecast, the Office of Public Works (OPW) says it does not foresee "significant coastal flooding."
And the NDFEM has also linked with ESB Networks, which are on standby to respond to any damage to the supply network arising from Storm Atiyah.
Gardaí are advising cyclists, motorcyclists and pedestrians to be aware of the danger posed by high winds as they are particularly vulnerable.
"Drivers of high sided vehicles should take all necessary precautions and pay attention to the warnings.
"We ask people living near coastal, cliff and waterway areas, particularly those with children, to be extra cautious considering the gusty winds forecast", Gardaí say.
Track the storm live below:
