Observed arrival · 2026-11-02
A debris-flow risk board for Santiago’s ravines
An independent Chilean tracker estimates debris-flow risk across 15 ravines in Santiago’s precordillera using weather forecasts and satellite imagery.
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●Pro
◎Niche
◉Human
⚑Risk
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- For
- Residents tracking debris-flow risk in Santiago’s foothills
- Worth noticing
- The scale’s examples score two past debris flows at 8.4, a false alarm at 7.7, and a red-alert day without a flow at 7.0.
Field notes
The scale is explicitly probabilistic: each step doubles the estimated odds, and the page anchors its bands to named past conditions. Its examples assign 8.4 to two recorded debris flows, 7.7 to a false alarm, and 7.0 to a red-alert day without a flow; these are presented as model comparisons, not official determinations. The homepage also notes a 111 mm rain day without a storm.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
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