The number of customers affected by the storm will grow Wednesday as the storm -- which strengthened as it neared the coast -- moves slowly onto land and across a large swath of South Texas served by American Electric Power Co's Texas utility, said spokesman Larry Jones.
"It's likely going to be a long day," Jones said.
Dolly was upgraded to Category 2, with winds of 100 mph as it slowed Wednesday morning before making landfall, the National Hurricane Center said.
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