"We're ready to go if we need to, we've got all our crews ready."
He said Unison was particularly concerned about the forecast for strong wind.
"If the forecast strong winds continue to build, we could be looking at outages unfortunately."
He said rural areas were the most at risk.
"The hill areas, rural areas, we will be keeping a close eye on."
The weather had already caused isolated power outages across the region, with the largest occurring on Wednesday, where 370 people lost power in the northern part of Hawke's Bay.
Currently, about 29 people are without power on Dartmoor Road, on the outskirts of Napier.
"The outage there was caused by a slip, which has brought down a whole lot of debris and some trees and stuff like that."