State Highway 94 is closed between Hollyford Road and Donne River.
Natural avalanches have been crossing the road since the weekend, the Milford Road Alliance advised today.
"Further control work during suitable weather is needed on major avalanche paths prior to clearing the road."
Heavy snow was blocking the highway near the west portal of the Homer Tunnel today and the road was expected to remain closed today and tomorrow.
Heavy rain and strong winds are forecast in the area from this evening.
Volatile weather over the next few days could bring further disruptions, increased avalanche hazard and road closures, Milford Road Alliance said.
A road snowfall warning is in place for SH94 rom 4am until 9pm on Tuesday.
MetService said snow showers were expected to affect the road, where up to 4cm may accumulate above 800 metres, with lesser amounts down to 600 metres.
Road snowfall warnings have also been issued for the Crown Range Road, linking Queenstown and Wānaka and the Lindis Pass (SH8) on Tuesday.
Snow showers may affect these alpine roads.
Meanwhile, a strong wind watch is in place for Fiordland and inland parts of Southland and Otago from 10pm today until 6am tomorrow.
Northwest winds may approach severe gale in exposed places.
Forecast for Homer Tunnel area
Today: A few showers developing this afternoon, turning to heavy rain from this evening. Northwesterly winds becoming strong in the evening.
Tuesday: Heavy rain, turning to snow showers above 600m early in the morning. Possible thunder. Strong north-west winds changing to south-west.
Wednesday: Showers turning to rain.
Thursday: Heavy rain turning to snow.
Friday: Snow showers.
Saturday: Snow showers.
- ODT Online
