A moody, atmospheric depiction of a rainbow over the New York City skyline, painted in the expressive, gestural style of the Ashcan School.

John French Sloan, a central figure of the Ashcan School, captured the atmospheric conditions of early twentieth-century New York with a distinct focus on the city's changing light. In this work, the artist depicts a fleeting meteorological event over the urban skyline. The composition is dominated by a dark, brooding sky that contrasts with the illuminated buildings below. A faint rainbow arches across the upper left, providing a subtle counterpoint to the industrial density of the scene.

Sloan utilised a loose, gestural brushwork that prioritises the mood of the moment over precise architectural detail. The palette relies on deep, moody blues and greys for the storm clouds, which shift into warmer, ochre tones where the light strikes the city structures. A prominent red form in the foreground suggests the presence of a train or industrial machinery, grounding the ethereal quality of the weather in the gritty reality of the metropolis. This painting reflects the artist's interest in the everyday life of the city, moving away from the polished academic styles of the era to embrace a more direct, observational approach.

By focusing on the intersection of natural phenomena and urban development, Sloan provides a view of New York that feels both immediate and transient. The work avoids romanticising the city, instead presenting it as a place of constant motion and shifting atmosphere. The application of paint is rapid and confident, allowing the viewer to sense the speed at which the artist worked to capture the scene before the light changed. This piece remains a representative example of the Ashcan School's dedication to documenting the American urban experience during a period of rapid expansion.