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Equatorial Atlantic 15n 40w

15°N, 40°W · Helen Frankenthaler · 2026-08-13

equatorial-atlantic-15n-40w weather artwork
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Creative Rationale

Over the equatorial Atlantic Ocean west of Cape Verde, where tropical waters meet steady trade winds, the atmospheric conditions create a scene of warm, humid transparency with gentle movement. The high humidity of 86% calls for deeply translucent color washes that layer and overlap like watercolor on wet paper, while the moderate wind from the northeast spreads these color fields in flowing, organic directions. The warm temperature and significant pressure gradient inspire golden ochres and salmon pinks to pool and flow across the canvas, with the absence of precipitation keeping the color fields soft and diffused rather than creating deep saturated pools.

Atmospheric Data

Date
2026-08-13
Location
15°N, 40°W (Equatorial Atlantic 15n 40w)
Pressure
1014.2 hPa (gradient: 40.07)
Wind
10.6 m/s from 68°
Temperature
25.4°C (anomaly: 6.9°C)
Humidity
86%
Visual Interest Score
33.4

Technical Details

Model
Claude Sonnet 4 via Amazon Bedrock
Artist Inspiration
Helen Frankenthaler
Weather Source
Open-Meteo API (GFS model)
Format
SVG (1920x1920 viewBox) + PNG
Generated
2026-08-13T06:09:38.714165+00:00
Run ID
2026-08-13-060044

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