As the impact of Storm Emma is being felt across the country, here is what we know so far.

• A Status Orange snow-ice warning is in place for Munster, Leinster, Cavan and Monaghan until midday tomorrow.
   
•  A Status Yellow snow-ice warning is in place for Connacht and Donegal until midday tomorrow.
   
• With widespread treacherous conditions around the country, people are urged not to travel unless it is absolutely necessary or an emergency. 

• The National Emergency Coordination Group said conditions will remain difficult, as it remains extremely cold with accumulations of snow and ice, and many roads remain impassible.
   
• Limited Irish Rail services have resumed this afternoon. 

• A full DART service has resumed in Dublin after flooding between Dún Laoghaire and Blackrock receded.

• The Luas Red Line operating a very limited service between Red Cow and The Point from 2.30pm.

• Flight operations are expected to resume at airports today with some delays and cancellations. Cork Airport has re-opened. Dublin Airport is open and operational, although passengers are advised to check with their airline before travelling. Shannon Airport has also reopened today.

• Temperatures will stay around freezing in northern parts but further south they will rise to values between 3-6C.

• Where possible schools and third-level institutions will re-open on Monday, with decisions to be made at a local level. 

• An Post has said wherever possible, post offices are open today subject to road conditions, safety and logistics but it expects that local conditions in the orange weather alert zones will prevent many post offices from opening. Social welfare payments due for payment in recent days can be collected next week when road conditions are less dangerous for customers.

• Bus Éireann commenced all expressway services from midday, and all local commuter routes are subject to assessment, while some Dublin Bus services resumed from midday. They hope to have most services up and running by evening.

• The Irish Coast Guard and the RNLI have issued a joint call for people to exercise caution and remain vigilant around the coast and near rivers. High tides, onshore easterly winds and a sharp rise in river levels could pose a significant risk to public safety.

• ESB has said around 12,000 homes, businesses and farms are still without power this afternoon. The majority of these customers, around 11,000 - are in the south-east.

• Irish Water has said that up to 10,000 customers are without water supply. 16,000 have been issued with a boil water notice but that includes 13,400 who were already issued with notices before the bad weather.

• The Road Safety Authority has urged motorists to remove all snow from their vehicle before starting their journey, as well as to stay vigilant and drive slowly.