Metservice has issued a RED wind warning for Christchurch, the most severe weather warning possible.

Residents can expect severe gale northwesterlies gusting 120 km/h in exposed places, but with damaging gusts of 140 km/h late Saturday morning and afternoon.

Note, another period of strong winds is expected from Sunday morning.

A Watch or Orange Warning is likely to be issued Saturday evening, to cover winds during this period.

These winds are expected to produce widespread damage, especially to trees and powerlines and could lift roofs.

Transport and power networks are likely to be significantly impacted, with road closures and power outages.

Conditions will be hazardous for motorists and there is a danger to life from flying debris and falling trees or branches.

Canterbury High Country

Severe gale northwesterlies gusting 130 km/h in exposed places, but with damaging gusts of 150 km/h late Saturday morning and afternoon. Winds are expected to ease late Saturday afternoon but another period of severe gales is expected from Sunday morning and an Orange Warning is likely to be issued Saturday evening to cover this period.

Impact: 

These winds are expected to produce widespread damage, especially to trees and powerlines and could lift roofs. Transport and power networks are likely to be significantly impacted, with road closures and power outages. Conditions will be hazardous for motorists and there is a danger to life from flying debris and falling trees or branches.