Motorists are being urged to take extra care on the roads and drive to the conditions as steady rain continues to fall in the region.

MetService said that the storm which caused surface flooding in Napier yesterday, will track south and bring strong southerly winds and short bursts of very heavy rain across the Wairoa District.

Hawke's Bay Civil Defence Emergency Management Group Manager Ian Macdonald said while they did not expect any major river flooding, smaller streams were likely to rise rapidly and cause surface flooding and slips, as seen in Napier yesterday.

"The wind may also be an issue, with gusty southerlies creating hazardous conditions and potentially blowing trees and branches onto roads."

He said because we have had no rain for some time, roads may also be slippery with a build-up of oil and grease.

"If heading towards Wairoa or Gisborne people should consider delaying travel until Friday unless it is essential."

"Don't drive through flood waters, and keep up to date with weather forecasts throughout the day," Mr Macdonald said.