25 counties have been issued with a Status Orange alert.
Met Éireann has issued a Status Orange low temperature and ice warning for 25 counties, including all of Munster and Connacht.
The only county in the Republic of Ireland not under a Status Orange warning is Donegal.
The warning takes effect from 8 pm on Tuesday until 10 am on Wednesday and will be reissued from 6 pm on Wednesday until 11 am on Thursday.
The forecaster warns of ‘extremely cold’ conditions with widespread severe frost, ice, and lying snow.
Hazardous travelling conditions, travel disruptions, and animal welfare concerns are expected.
A Status Yellow low temperature and ice warning remains in place nationwide until Friday.
Power outages persist, with 10,000 homes without electricity. Around 25,000 households remain without water, and 27,000 are at risk, with Cork, Limerick, Kerry, Tipperary, and Dublin worst affected.
Uisce Éireann advises insulating exposed pipes, protecting outdoor taps, and conserving water to prevent freezing and damage during the cold spell.
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