494 homes, farms and businesses have been left without power in the Milford area.
Power is expected to be restored for 63 customers in the Carrowkeel area at 1.30pm and at 14:45pm for 316 customers in Dunmore.
There is no estimated restoration time for the remaining properties.
There were reports this morning of fallen power lines around Dunfanaghy this morning and people are being warned to let ESB handle the faults.
