Observed arrival · 2026-09-13
Sembrando Lluvia: a radar experiment over Colombia
An open Spanish-language investigation into whether public radar and satellite data can identify clouds suitable for seeding over Colombia’s drought-stressed Salvajina watershed.
Field notes
The project narrows its analysis to the upper Cauca watershed feeding the Salvajina reservoir, where three radar beams reportedly cross the relevant 0 to -10 °C layer about 55 kilometres from Cerro Munchique. Its sample covers 63,825 scans from May through September 2026, including a 57 dBZ cell observed at 17:15 on 5 September. The page distinguishes this evidence from proposed next steps: real-time feeds, satellite and terrain integration, permits, classification, and randomized testing.
Observed signals
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Editorial observations of this landing page, not a rating.
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