Here's what you need to know for Thursday and Friday
Public transport across Ireland is set to be heavily disrupted on Thursday, as the country prepares for expected 'blizzard-like conditions'.
A status red weather warning has been issued for the entire country into Friday afternoon.
Officials are urging people to stay indoors when the warning is in effect.
A large amount of transport services have already been cancelled amid the forecast of severe weather.
Dublin Bus says none of its services will be operating tomorrow.
Last departures to and from the city centre will be at 7.00pm this evening (Wednesday).
In a statement, the transport company said: "Due to the latest forecast issued by Met Éireann and information received from the National Emergency Co-ordination Committee, Dublin Bus will not be in a position to operate any services tomorrow, Thursday 29 February.
"We apologise for the inconvenience caused however this decision has been made in the interest of the safety of customers and our employees."
There will also be no Bus Éireann services in Leinster and Munster.
Irish Rail services will wind down from noon tomorrow, and will remain closed for at least 24 hours.
Rail Service outlook following NECG meeting & @MetEireann info: (3/3)— Iarnród Éireann (@IrishRail) February 28, 2018
Thurs 1st March lunchtime onwards : all rail services will close tomorrow between 12.00hrs & 14.00hrs (details ASAP) and remain closed to 12.00hrs Fri at least #BeastFromTheEast
Luas will be running limited services in the morning.
From 12.00pm, trams will be withdrawn, and a full suspension will be in effect from 2.00pm.
Service Information: Thursday, 1st March— Luas (@Luas) February 28, 2018
Luas will operate services from 5.30am with a frequency of 30 minutes until 12 noon. At 12 noon trams will be withdrawn with full suspension from 2pm. All updates available here: https://t.co/GkL4FmFo1J #StormEmma
Airline passengers have seen hundreds of flights cancelled or diverted.
Aer Lingus says it expects to operate the vast majority of short haul services on Thursday morning.
It also says it is "planning to operate" all services to and from North America.
But the carrier adds that it plans to cease all operations by 3.00pm on Thursday.
Aer Lingus says it will post further updates on arrangements for Friday, but cautions: "Forecasts suggest that operations may not be possible on Friday morning or afternoon."
Ryanair says it expects "further flight delays and cancellations" at airports on Thursday.
It is advising customers to check the status of their flight at Ryanair.com before making their way to the airport.
All flights to/from Dublin Airport have been cancelled for Wednesday - and the carrier says "some flights" have been cancelled for Thursday.
Ryanair passengers can get more information here
Additional reporting: Jack Quann