Ireland is set for strong winds, snow and freezing temperatures in the next 72 hours, according to Met Éireann, which has issued a yellow weather warning.
Gusts of up to 110km/h are expected along all coastal areas today ahead of Storm Caroline's passage over the North West and North towards Scotland on Thursday.
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A yellow "be aware" weather warning is in place for the region, which runs from 8am on Thursday until just before midnight.
The weather is expected to turn wet and windy on Wednesday, especially across the north and west of the United Kingdom, before the gales hit on Thursday.
Severe weather warnings for savage 80mph gusts, torrential rain, icy conditions and eight inches of snow have been issued by the forecaster.
"Scattered snow showers will occur later Thursday, Thursday night and into Friday".
Met Eireann last issued a snow warning for Donegal last month when temperatures plunged to -2C on Thursday, November 23, leading to some snowfall on high ground housing estates in towns like Letterkenny.
Disruption to travel is likely, with rail and ferry cancellations possible.
"Large waves are expected and beach material may be thrown onto coastal roads, sea fronts and properties".
As Caroline clears, the winds will swing round to the north, bringing colder air and the return to more wintry conditions.
Offaly is now covered by a fresh snow-ice warning from Met Éireann.
The Met Office said: "Any snow showers will be most frequent over northern and western parts, and perhaps the east coast, but at times may become more widespread". Temperatures will fall to between minus 2 and plus 2 degrees, with frost and icy patches.