Late-October North Atlantic System
2 resorts in the path, 73cm at the biggest. Likely — the models agree on this one.
+73CM
Predicted at Galdhopiggen
14–148cm across the models
Storm
Oct 25–29
2 resorts in the path
Peak
Oct 25
29cm at Galdhopiggen
Predicted
73cm
Galdhopiggen · 14–148cm across the models
Confidence
Likely
Updated
Oct 24, 00:30 UTC
SnowSure Forecaster
Written from the blend and the model spread · updated Oct 24, 00:30 UTC
Current prediction: 73cm for Galdhopiggen between 2026-10-25 and 2026-10-29, 73cm our central figure. The biggest day is 2026-10-25 at 29cm. Also in the path: Engelberg-Titlis 43cm. Confidence is likely: the models agree on both the window and the magnitude. On day one we said 76cm for Galdhopiggen; 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 7·Oct 24·Likely·73cmLanded
Window open: final prediction 14–148cm for Galdhopiggen
The window opened today. Final prediction: 14–148cm for Galdhopiggen between 2026-10-25 and 2026-10-29, 73cm our central figure. The biggest day is 2026-10-25 at 29cm. Also in the path: Engelberg-Titlis 43cm. We first flagged this 6 days ago at 76cm; the prediction fell 4cm while we watched it. These are the numbers we are now on the hook for. Receipts come from measured snowfall once the window closes, and they are printed beside this call whether they flatter it or not.
Window Oct 25–29 · Galdhopiggen
- Day 6·Oct 22·Likely·73cm(-4)
Day 6: totals down 4cm, 14–148cm for Galdhopiggen
Day 6: totals down 4cm at Galdhopiggen, the window slid 1 day later, 1 dropped out. Current prediction: 14–148cm for Galdhopiggen between 2026-10-25 and 2026-10-29, 73cm our central figure. The biggest day is 2026-10-25 at 29cm. Also in the path: Engelberg-Titlis 43cm. Confidence is likely: the models agree on both the window and the magnitude. On day one we said 76cm from 2026-10-24; that is the number we are measured against. What to watch next: whether the models hold the window, whether the low tracks closer to the core resorts, and the freezing level in the days before it arrives. 3 days to go.
Window Oct 25–29 · Galdhopiggen
- Day 5·Oct 21·Likely·76cmFirst prediction
Watch issued: 27–127cm for Galdhopiggen, 2026-10-24 to 2026-10-29
THE PREDICTION: 27–127cm for Galdhopiggen between 2026-10-24 and 2026-10-29, 76cm our central figure. The biggest day is 2026-10-25 at 31cm. Also in the path: Engelberg-Titlis 62cm, Kitzsteinhorn - Kaprun 37cm. We are watching a significant system for the Alps and wider Europe, 3 days out. Confidence is likely: the models agree on both the window and the magnitude. Resorts nearest the core of the moisture win; totals fall off away from it, and the lowest bases are the first to see rain mixed in. The prediction changes if model agreement loosens, the window slides later, or the freezing level trends higher. We will update this log every scan until the window opens.
Window Oct 24–29 · Galdhopiggen
Snow by day
Oct 24 – Oct 30, 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.
Galdhopiggenbase 1,850 m · summit 2,200 m
73cm snow
Modelled at the summit, 2,200 m
linem
/ raincm · mm
Sat
Oct 24
—
Sun
Oct 25
—
Mon
Oct 26
—
Tue
Oct 27
—
Wed
Oct 28
—
Thu
Oct 29
—
Fri
Oct 30
Dry
no daily series
Engelberg-Titlisbase 1,050 m · summit 2,935 m
43cm snow
Modelled at the summit, 2,935 m
linem
/ raincm · mm
Sat
Oct 24
—
Sun
Oct 25
—
Mon
Oct 26
—
Tue
Oct 27
—
Wed
Oct 28
—
Thu
Oct 29
—
Fri
Oct 30
Dry
no daily series
snowrain low, snow highraindryThe dots are the freeze line — the height where rain turns to snow. Solid: straight from the models. Hollow: estimated from temperature. Above the summit line it rains on the whole mountain; below the base line it snows all the way down. Blue bars are snow in cm, amber bars rain in mm; the totals above are their sums.
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
The prediction is what we said before the snow. The receipt is what actually fell.
What fell
Every watch ends in a public receipt, hit or miss.
- GaldhopiggenWe predicted 73cm. 4cm fell.Miss
- Engelberg-TitlisWe predicted 43cm. 6cm fell.Miss
Last updated 2026-10-25 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 41cm forecast at Galdhopiggen.
