Early-September Tasman System
2 resorts in the path, 37cm at the biggest. Watching — the models see it but do not yet agree closely.
+37CM
Predicted at Mt Olympus
Storm
Sep 6–8
2 resorts in the path
Peak
Sep 6
22cm at Mt Olympus
Predicted
37cm
Mt Olympus
Confidence
Watching
Updated
Sep 6, 06:30 UTC
Snow by day
Sep 5 – Sep 9, with a day either side. For each resort: where the freeze line sits against the mountain, then what falls — snow in cm, rain in mm — and the day read from those two numbers.
Mt Olympusbase 1,430 m · summit 1,880 m
—cm snow
no daily data
Temple Basinbase 1,326 m · summit 1,753 m
—cm snow
no daily data
No daily series on file for these resorts yet.
Rain / snow line
Base to summit for each mountain, with the snow line cut across them.
The system
700mb flow — where the storm is, and what is steering it. Pins sized by forecast total.
72-hour snowfall forecast for the same window.
In the path
Forecast, not observation — none of this has fallen yet. Totals are across the window. We will post what fell when the window closes.
Last updated 2026-09-06 06:30 UTC. SnowSure scans a blend of seven weather models twice daily and flags systems clearing 30cm over 72 hours, three to fourteen days out. This watch opened on 2026-09-02 with 32cm forecast at Mt Olympus.
