A secondary band of rain and squalls is just about to move into northern New Zealand.

Head weather analyst Philip Duncan says the rain band is now moving in to the western coastline between Waikato and Auckland.  “This second band of rain does bring the risk of more damaging winds either in the form of a tornado or heavy downburst”.

“The bursts of wind can come out of the sky like a freight train – it’s loud, scary and dangerous”.

Mr Duncan says the Waikato region will be most vulnerable to the isolated heavy wind and downpours over the next hour or two and estimates winds could go from a few km/h to over 130km/h in a “matter of seconds” in some isolated pockets.

Meanwhile the front that brought chaos to Cambridge this morning is now moving across the Bay of Plenty region.