Scottish Power say that more than 500 homes are without power in the Holywell and Llangollen areas of north east Wales. They say engineers are trying to reconnect them but are struggling to due to closed roads.
The company says there are a number of other 'pockets' of disruption.
They hope that power can be reconnected by the end of the day.
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A yellow warning for snow and ice on Thursday night and Friday has been issued.
Some wintry showers and staying windy with a significant wind chill and widespread frost developing
Mark Whincup, 50, was well known in North Wales for his magic displays at children's parties and pantomime appearances.