A multi-day winter storm targets the central Andes with the principle punch from Wednesday night time by Friday (August 20-22, 2025). Central Chile (Valle Nevado, La Parva, El Colorado, Portillo) and Cuyo (Las Leñas) will stack legit double-digit totals with chilly temps and excessive SLRs by Friday. Additional south (Nevados de Chillán, Corralco) will get a stable storm too, however the early section is denser with greater winds earlier than flipping to colder, lighter snow late Thursday into Friday. Thursday produces good snowboarding in spots, however the headline chase window is Friday.Wish to sustain with the most effective tales and pictures in snowboarding? Subscribe to the brand new Powder To The Individuals e-newsletter for weekly updates.
Key Factors
Good: Snow ranges crash from roughly seven thousand toes Wednesday to close two–three thousand toes by Thursday night time–Friday, turning the storm chilly. Central Chile and Las Leñas run mid-to-upper teenagers SLRs Thursday night time into Friday with lighter winds Friday — traditional blower setup. Temps pattern chilly sufficient to protect snow by the interval.Unhealthy: Thursday is windy in lots of zones (gusts within the mid 30s to low 50s), which might have an effect on carry ops and floor high quality. Early rounds within the south (Chillán/Corralco) are denser with snow ranges flirting with base elevations earlier than the late chilly shot. Patagonia (Catedral/Chapelco) stays on the fringes with small totals and powerful winds at instances.
Each day Forecast + Chase Worthy?
Wednesday, August 20
Not a major chase day. Higher-mountain laps at Nevados de Chillán are the one actual play with about 7–9″ in a single day into Wednesday, but it surely’s denser snow with reasonable winds and marginal snow ranges early. In all places else is within the hint–2″ vary — skip.
Thursday, August 21
Portillo leads for high quality and ops threat with roughly 14–22″ from Wednesday night time plus Thursday daytime, medium-density snow, and reasonable winds.Tres Valles (Valle Nevado / La Parva / El Colorado) construct 9–16″ by finish of day Thursday; snow high quality developments from medium towards lighter, however count on gusty durations that might influence lifts.Secondary: Nevados de Chillán can find yourself 10–16″ by final chair, however stronger winds and earlier denser snow knock high quality down. Corralco runs 7–10″ with related caveats. Las Leñas picks up a primer 4–6″ into Thursday — higher to stage for Friday.
Friday, August 22
Chase right here.Tres Valles explode with 18–32″ from Thursday night time plus Friday daytime, blower snow and colder temps; winds ease versus Thursday.Portillo delivers 14–24″ of sunshine, chilly snow with low winds — high-quality turns.Las Leñas stacks 15–26″ of blower with gentle winds and really chilly temps — wonderful possibility should you’re in Cuyo.Nevados de Chillán additionally posts 14–24″ with lighter Friday winds versus Thursday — robust backup should you’re already south.Corralco provides 8–14″ of principally gentle snow.
Saturday, August 23
Storm tails off. Corralco refreshes 3–7″ and Nevados de Chillán3–5″ with chilly temps and lighter winds — first rate follow-up should you stayed south. Elsewhere, leftovers are minor and never chase-worthy.
Regional Particulars
Central Chile and Cuyo carry the storm’s core power. Valle Nevado / La Parva / El Colorado take a modest begin Wednesday night time (5–9″) then surge Thursday night time (16–27″) with one other 3–5″ Friday as snow ranges crash from close to 7,000 toes Wednesday to 3,700–2,700 toes by late Thursday–Friday. Winds peak Thursday (gusts mid 30s to low 40s) earlier than easing Friday, and SLRs soar into the mid-to-upper teenagers — traditional blower for Friday. Portillo runs related timing: 9–14″ Wednesday night time and 12–20″ Thursday night time with 3–4″ Friday, all with lighter winds than Tres Valles and really chilly temps by Friday — a clear, high-quality goal.Additional south, Nevados de Chillán begins denser (SLR single digits) with snow ranges close to base Tuesday night time–Wednesday, then flips chilly: 11–19″ Thursday night time plus 3–5″ Friday with mid-teens SLRs and easing winds on Friday. Corralco follows go well with with 6–11″ Thursday night time and 2–3″ Friday, then a Saturday refresher 3–7″ below colder temps. In northern Patagonia, Cerro Catedral and Chapelco sit on the sting: small hits (1–3″ most durations) and frequent wind spikes (gusts close to or above 40–55 mph at instances) — marginal for chasing. Las Leñas pops late with 12–20″ Thursday night time and 3–5″ Friday below very chilly temps and light-weight winds, delivering deep, dry turns Friday.
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