Storm Erik is expected to peak over Donegal this Friday, bringing gusts of 130km/h and flooding risks.
The county is under a Status Orange wind warning from 9am today until 6am on Saturday.
Storm Erik developed in the mid-Atlantic on Thursday and is tracking over the north-west of Ireland today, having the most impact on Donegal, Mayo and Galway.
Met Eireann has warned that a combination of very high seas and high winds will lead to coastal flooding.
The highest winds will be in exposed coastal areas. Southwest to west winds will reach mean speeds of 65 to 80 km/h with some severe or damaging gusts of 110 to 130 km/h.
The Road Safety Authority (RSA) is asking road users to exercise caution while using the roads.
Donegal County Council has issued the following emergency contact details: