More than 1,000 residents near Didcot were left without electricity this morning after high winds damaged power lines.
Residents in Blewbury, Aston Tirrold and East Hendred suffered a power cut before 7am after a high-voltage line was damaged in Cholsey near Wallingford.
Winds of up to 80mph hit the Cornish coast and more severe weather is expected, although Oxfordshire will escape the worst of the storm, according to the Met Office.
Denis Kirby, a spokesman for Southern Electric, said engineers were working to get supplies switched back on, and the majority of the 1,000 homes have now been re-connected.
Drivers were advised to take care after high winds brought down trees, partially blocking a number of roads across the county, including Haddon Hill, Didcot.
A fallen tree also closed Challow Road between Wantage and King Alfred School, and another partially blocked Kirtlington crossroads near Kidlington.
The A415 crossroads at Clifton Hampden was also partially blocked due to a fallen tree.
The severe weather conditions meant traffic was slow between junctions 10 and 11, Ardley and Banbury on the M40, and between junctions six and seven, Lewknor and Great Milton.
The Highways Agency has urged drivers, particularly those of high-sided vehicles to take extra care.
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