"By Wednesday we shift to a southeasterly which will be pretty gusty.
"It will be quite a strong southeasterly during the morning and that will gradually ease away towards the latter part of the day but for a lot of the day it's looking like it's a 25 knot southeasterly."
"As it starts off the day, it will be very, very windy, quite strong. There will be some rain at the start of the day but that should clear up and the weather itself should be relatively dry."
Crabtree said Monday would be "quite awful" for Auckland and Northland.
"It's a low system and it mainly hangs around the Upper North Island for Monday, Tuesday, so rain and windy conditions for Northland, Auckland, Coromandel, Bay of Plenty, and quite wet for Waikato down towards Taranaki and central areas, although it might be slightly less windy."
Gisborne and Hawke's Bay would start to get quite wet on Tuesday and Wednesday.
"The lower North Island will be wet and windy but less rain and more rain, that's the worry there."
Temperature wise, although the humidity would remain it wouldn't be as noticeable due to the strong winds.
The South Island appeared to sidestep the brunt of the system with just a few showers lingering around southern and eastern areas tomorrow before becoming dry on Tuesday.