"In the 12 hours from 11pm on Monday, there have been a few stations across Hawke's Bay that has seen around 20mm of rain – Wairoa being one of them," he said.
MetService warned that the heavy rain in the Wairoa area may cause streams and rivers to rise rapidly.
A Wairoa District Council spokeswoman said the severe weather may cause hazardous driving conditions, surface flood and possible slips in the district.
According to WeatherWatch, the gale force winds which blasted the Cook Strait on Tuesday morning were due to shift over to the eastern side of the North Island on Tuesday night.
"Gusts will be between 80 and 120km/h in the windiest areas on land and may go even higher in Cook Strait for a time," a WeatherWatch spokeswoman said.
"Winds will ease overnight and into Wednesday morning for the North Island with a much calmer Wednesday coming for many."
A Napier Port spokeswoman said there were no disruptions at any of the ports depots on Tuesday as a result of the weather.
According to Ferris, Napier and Hastings are due to see highs of 18 degrees Celsius on Wednesday, with lows of 13C and 11C respectively.
Wairoa and Waipukurau will be warmer, with expected highs of 20C.