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San Francisco Microclimate 37n 122w

37°N, 122°W · Joan Mitchell · 2026-05-05

san-francisco-microclimate-37n-122w weather artwork
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Creative Rationale

Over the San Francisco Bay Area with its characteristic coastal microclimate, where cool Pacific air meets the warming landmass creating complex atmospheric dynamics. The moderate pressure gradient of 17.6 Pa/cell and high humidity of 78% inspire dense, clustered brushwork with luminous ground showing through, while the cool 14K temperature calls for a palette dominated by steely blues and cool greens rather than hot summer colors. The moderate wind from 280 degrees (west-northwest) creates diagonal energy pulling marks across the composition, and the light precipitation translates to overlapping gestural passages that accumulate in memory-laden clusters.

Atmospheric Data

Date
2026-05-05
Location
37°N, 122°W (San Francisco Microclimate 37n 122w)
Pressure
1015 hPa (gradient: 17.6)
Wind
7.4 m/s from 280°
Temperature
14°C (anomaly: 0.6°C)
Humidity
78%
Precipitation
0.1 mm
Visual Interest Score
7.5

Technical Details

Model
Claude Sonnet 4 via Amazon Bedrock
Artist Inspiration
Joan Mitchell
Weather Source
Open-Meteo API (GFS model)
Format
SVG (2048x2048 viewBox) + PNG
Generated
2026-05-05T17:55:24.057214+00:00
Run ID
2026-05-05-175011-jm

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