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Tropical South America 15s 70w

15°S, 70°W · Sam Francis · 2026-03-20

tropical-south-america-15s-70w weather artwork
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Creative Rationale

Above the high Andes of southern Peru and Bolivia, where extreme altitude creates an atmospheric environment of intense cold and very low pressure, the weather data reveals a landscape of crystalline air and ethereal moisture. The remarkably low sea-level pressure reading suggests we're witnessing conditions at extraordinary elevation, while the 94% humidity and gentle precipitation create a gossamer veil across the mountain peaks. I've interpreted this as a Sam Francis-inspired composition where pools of saturated blues and whites gather at the edges like frozen breath, with delicate splatters representing the light precipitation dancing through the thin, luminous air of the altiplano.

Atmospheric Data

Date
2026-03-20
Location
15°S, 70°W (Tropical South America 15s 70w)
Pressure
637.5 hPa (gradient: 336.03)
Wind
2.1 m/s from 313°
Temperature
5.8°C (anomaly: 6.9°C)
Humidity
94%
Precipitation
0.2 mm
Visual Interest Score
46.8

Technical Details

Model
Claude Sonnet 4 via Amazon Bedrock
Artist Inspiration
Sam Francis
Weather Source
Open-Meteo API (GFS model)
Format
SVG (1024x2048 viewBox) + PNG
Generated
2026-03-20T06:01:59.543842+00:00
Run ID
2026-03-20-060044

License: CC BY-NC-ND 4.0. Attribution: James Tannahill / art.jamestannahill.com. No commercial use or derivatives without permission.