Schools in areas under status red or orange weather warnings are being advised to not open tomorrow ahead of the arrival of Storm Barra.
Status red wind warnings have been issued for three counties so far - Clare, Cork and Kerry.
Status orange wind warnings are in place for Dublin, Limerick, Louth, Waterford, Galway, Mayo, Wexford, Wicklow and east Meath.
The Department of Education says it's advising schools to stay closed tomorrow due to the "significant nature" of the storm.
They said: "Met Éireann has advised that there is a strong possibility that the status of parts of these counties currently in status orange are likely to change and escalate to status red.
"The Department is advising that all schools covered by the Red Alert and Orange warning from Met Éireann should not open tomorrow, 7 December.
"All schools should keep up-to-date with the current weather warnings which are carried on all national and local news bulletins and in particular any change in the status warning for their area."
Colleges, universities and further education facilities are also being told to stay shut tomorrow.
A number of COVID-19 test and vaccination centres in impacted counties are also closing tomorrow, with full details on the HSE website.
The storm's expected to lead to extremely windy weather across the country tomorrow, as well as heavy rain and even snow in some areas.
Gardaí are advising that all unnecessary travel should be avoided in the red and orange counties while the warnings are in place.
They said Limerick and Galway are also expected to go to 'status red' warning, while Dublin, Wicklow and Kildare are also likely to be 'severely impacted' by the storm tomorrow morning.
