Late-September Andes System

1. Day 10·Sep 21·Likely·73cm(-53)

   Late-September Andes System: 72.8cm for Corralco (47.2–123cm)

   Day 10: the window start moved one day later, and totals are down 53cm since the previous entry. The forecast window is now set for 2026-09-24 to 2026-09-26, with Corralco expected to receive 72.8cm, Las Leñas 41.7cm, and Batea Mahuida 38cm. The biggest day for all resorts is projected for September 24, with Corralco leading at 59.8cm. Confidence remains likely at two of the three resorts, while we are watching Batea Mahuida closely as its trend is new.

   Window Sep 24–26 · Corralco

2. Day 9·Sep 20·Likely·126cmFirst prediction

   Late-September Andes System: 125.8cm for Corralco (45.7–205.8cm)

   The prediction for the late-September Andes System, from September 23 to September 27, indicates significant snowfall totals, with Corralco leading at 125.8cm (range 45.7–205.8cm). The overall pattern suggests a favorable setup for snow accumulation across the region. Corralco and Nevados de Chillán are likely to see the most substantial totals, while Cerro Catedral and Las Leñas also stand to benefit. However, Las Araucarias, Cerro Perito Moreno, and Batea Mahuida are currently in a watching phase, with potential for improvement. A shift in the storm's trajectory or intensity could alter these predictions.

   Window Sep 23–27 · Corralco

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.

Enlarge rain / snow line

• LiveCorralcobiggest day 56cm on 24 Sep · on trackPredicted68cm43–116cm across the models
• LiveLas Leñasbiggest day 18cm on 24 Sep · on trackPredicted37cm8–76cm across the models
• Batea Mahuidabiggest day 17cm on 24 Sep · newPredicted29cm0–125cm, models far apart