Flights in and out of Wellington have resumed as sea fog that has been causing disruptions to services for two days has moved off.
Scores of flights were cancelled or delayed due to the fog, which began creeping into southern areas of the capital from about 5pm on Thursday.
The fog first rolled in on Wednesday night, forcing 29 stranded travellers to bed down at the airport terminal and causing dozens of flights then and on Thursday morning to be cancelled, affecting thousands.
The fog started to return early in the evening, causing more delays. By 10pm it had cleared, and no flights have been disrupted since an 8.35pm arrival from Blenheim had to be cancelled.
Forecaster David Miller from the MetService said the fog was caused by warm, moist air moving over cold waters in the Cook Strait.
"What happened tonight was the depth of moisture in the atmosphere wasn't as high as it was yesterday. The wind's sort of died out, the sea fog broke up and pushed back into Cook Strait."
Fog also shrouded the entrance to Wellington harbour and ships going in and out are being forced to sound their foghorns.
Mr Miller said the fog would not be returning on Friday.