Late-October Andes System
1 resort in the path, 32cm at the biggest. Watching — the models see it but do not yet agree closely.
+32CM
Predicted at Corralco
2–63cm across the models
Storm
Oct 26–28
1 resort in the path
Peak
Oct 28
20cm at Corralco
Predicted
32cm
Corralco · 2–63cm across the models
Confidence
Watching
Updated
Oct 17, 18:30 UTC
SnowSure Forecaster
Written from the blend and the model spread · updated Oct 17, 18:30 UTC
Current prediction: 32cm for Corralco between 2026-10-26 and 2026-10-28, 32cm our central figure. The biggest day is 2026-10-28 at 20cm. Corralco is the only resort clearing our threshold so far. Confidence is watching: the signal has crossed our threshold but the models still disagree on how much. On day one we said 32cm for Corralco; that is the number we are measured against. These figures are re-read from the latest model blend; each entry in the log keeps what we said at the time.
Forecast log
Every entry, newest first. Nothing is overwritten.
- Day 1·Oct 17·Watching·32cmFirst prediction
Forecast: 32.2cm for Corralco Oct 26–28, range 2–62.5cm
The prediction for the late-October Andes system indicates Corralco could see 32.2cm of snow over the window from October 26 to 28, with a range of 2–62.5cm. Current patterns suggest a favorable setup for snowfall in the region, though confidence remains low as we monitor evolving data. Corralco stands to gain the most from this event, while other resorts are not currently included in this forecast. Changes in atmospheric conditions or model outputs could significantly alter these totals, so we will continue to track developments closely.
Window Oct 26–28 · Corralco
Snow by day
Oct 25 – Oct 29, 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.
Corralcobase 1,440 m · summit 2,400 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 2026-10-18 00:30 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 2026-10-17 with 32cm forecast at Corralco.
