The National Emergency Coordination Group for Severe Weather has urged people to stay indoors until the Status Red weather alert is withdrawn this evening.
The warning came into place at 4pm on Thursday and will remain in force until 6pm today.
Transport across the country came to a standstill yesterday with all services cancelled by the afternoon.
There will be no Dublin Bus, Luas, Dart or Iarnród Éireann services today.
Despite all flights being cancelled until Saturday morning, Dublin Airport remains open and crews are working to clear snow from the apron and taxiway.
All of the schools and colleges will remain closed today too.
The HSE has cancelled all outpatient appointments and non-urgent surgeries for today.
It said that the National Ambulance Service is prioritising emergency calls.
They say: “We are asking people to consider if they have an absolute emergency situation before calling for an ambulance. If you do need to call an ambulance please know or have your Eircode to hand.”
All post offices were closed by 1pm yesterday and will not reopen until Saturday morning.
A spokesperson for An Post said social welfare payments will be safe and secure for people to collect once the bad weather is over.
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