Woodman-Haynes said there had been thunder and lightning in the area when they had set off to the local gas station to get pies and some cigarettes.
Isabella had been sleeping but the loud bang woke her and she began screaming.
Traill slowed to about 15km and Woodman-Haynes said she held her arm over her face to shield her eyes as they slowly drove home and bumped up a rough road to the farm where they live.
The family moved from Wellington to Northland two weeks ago and were loving the mild winter temperatures and weather until yesterday.
Traill is a farm assistant on a dairy farm while Woodman-Haynes is relieve milking, calf rearing and looking after two young children.
The car is her only transport and she was trying to urgently find a replacement windscreen.
Today's weather forecast was for a fine day with northerly breezes with the mercury expected to rise to 18C. Tomorrow the outlook is not so good with rain expected around noon with cloudy periods and chances of a shower later in the day.
Strengthening northerly winds would turn westerly in the afternoon. The story was pretty much the same for Kaitaia, Paihia and Dargaville.
The marine outlook for Northland coastal areas was rising Sunday morning northerly 35 knots with very rough seas, changing Sunday evening westerly 25 knots.