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Tropical South America 15s 70w

15°S, 70°W · Norman Lewis · 2026-08-25

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

Over the high Andes of Peru near the border with Bolivia, at extreme altitude where atmospheric pressure drops to a fraction of sea level, cold thin air carries gentle winds across the sparse landscape. The extremely low pressure creates dense congregations of calligraphic marks that mass like crowds seeking shelter, while the bitter cold drives the palette toward stark whites and silver against deep blue-black grounds. The moderate humidity softens these gestural marks with atmospheric veiling, and the light wind sets them drifting slowly across the canvas in processional bands.

Atmospheric Data

Date
2026-08-25
Location
15°S, 70°W (Tropical South America 15s 70w)
Pressure
639.8 hPa (gradient: 336.79)
Wind
1.8 m/s from 29°
Temperature
4.9°C (anomaly: 13.7°C)
Humidity
66%
Visual Interest Score
45.2

Technical Details

Model
Claude Sonnet 4 via Amazon Bedrock
Artist Inspiration
Norman Lewis
Weather Source
Open-Meteo API (GFS model)
Format
SVG (2560x1440 viewBox) + PNG
Generated
2026-08-25T06:02:11.839004+00:00
Run ID
2026-08-25-060044

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