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home·artworks·Summer Squall
Summer Squall by Winslow Homer

plate no. 8584

Summer Squall

Winslow Homer, 1904

oil, canvasRealismmarinaoceanwavesrocksboatskystorm

what to study here

It shows how a narrow middle value range, hard-and-soft edge control, and directional foam strokes can make rough water read clearly.

Look at how the picture is organized into three value zones: light foreground, dark water, muted sky. The lightest lights, white foam and cream sand, sit around the darkest darks, the brown rocks, so the foreground carries the strongest contrast and the eye stops there first. From the rocks, the eye moves through white-crested waves in the middle distance and up into a greenish-gray sky. A single dark bird near the top gives a small accent. Study the middle value band: the greenish-gray of water and sky holds most of the canvas together, so the extremes read clearly. Note the edge control. Rocks have hard edges where they meet foam, while wave faces dissolve into soft, broken strokes as they recede. The foam is made of sharp, directional dashes that follow the water's movement, laid over darker water. The sky is looser, with visible horizontal strokes. The horizon sits higher on the right, which tilts the scene slightly. Light comes from the upper left, so check how the foam and sand catch it while the offshore waves stay shadowed.

key decision

The painter kept the greenish-gray middle value band across water and sky and saved the strongest lights and darks for the foreground foam, sand, and rocks. Edges are hard at the rocks and soft in the receding waves.

From the record

Dimensions
61.6 cm high × 76.8 cm wide
Institution
Clark Art Institute
Location
Clark Art Institute
Inception
1904
Materials
oil paint, canvas

Wikidata item Q104773844

from the sources

  • Homer's Summer Squall was inspired by a sudden storm he watched from his studio at Prouts Neck, Maine. clarkart.edu

    “Summer Squall was inspired by a sudden storm Homer observed from his studio at Prouts Neck, Maine.”

  • The thick white brushstrokes represent foaming water surging over and around the flat rock in the foreground. clarkart.edu

    “Thick strokes of white paint suggest the foaming water violently surging over and around the flat rock in the foreground, which in better weather was one of the artist’s favorite fishing spots.”

  • The lone sailboat in the distance heightens the drama of the painting and evokes the human struggle against nature. clarkart.edu

    “The solitary sailboat in the distance enhances the painting’s drama, evoking the human struggle with the forces of nature.”

  • The painting is oil on canvas. clarkart.edu

    “Winslow Homer, Summer Squall , 1904, oil on canvas. Clark Art Institute, 1955.8”

  • The Clark Art Institute's record lists the provenance as passing through M. Knoedler & Co., Morris J. Hirsch, John Levy Galleries and Harold S. Somers before Knoedler sold it to Sterling Clark on 16 June 1923. clarkart.edu

    “[M. Knoedler & Co., New York, 1904]; Morris J. Hirsch, New York (from 1904); [M. Knoedler & Co., New York, 1915]; [John Levy Galleries, New York, 1915]; Harold S. Somers, New York; [M. Knoedler & Co., New York, sold to Clark, 16 June 1923]; Sterling and Francine Clark (1923–55); Sterling and Francine Clark Art Institute, 1955.”

recreation guide

Winslow Homer’s *Summer Squall* (1904) is a seminal work of American Realism, depicting a dramatic maritime scene where a sudden storm threatens a fishing boat. While the specific visual details of this particular canvas are not described in the provided source passages, the recreation must adhere to the principles of optical color theory and oil painting technique documented in the sources. The artwork relies on the 'laws of contrast of colour' to create the illusion of atmospheric depth and the intensity of the squall, rather than merely mixing pigments to match local colors. As noted in the sources, the artist must distinguish between colors inherent to the model and those chosen to harmonize the composition, utilizing simultaneous contrast to enhance the perception of light and shadow (Source 1, Source 2).

estimated time

20-30 hours over 5-7 sessions

materials

4 items

steps

5 in sequence

materials

itempurposemodern equivalent
Oil paints (Ultramarine, Yellow Ochre, White Lead/Titanium, Vermilion, Raw Sienna)Primary palette for mixing sea, sky, and boat tones. Ultramarine and Yellow are key for complementary contrast.—
Canvas (linen or cotton)Support for oil application.—
Oil medium (Linseed oil or stand oil)For glazing and scumbling techniques to build luminosity and atmospheric effects.—
Varnish (optional, for final layer)To unify the surface and protect the paint, as referenced in glazing instructions.—

preparation

surface prep

The canvas should be primed with a traditional oil ground. While the sources do not specify Homer’s exact ground for this piece, the general practice of the period and the need for 'glazing and scumbling' (Source 6) suggests a smooth, absorbent surface that allows for transparent layers. A neutral gray or warm white ground is advisable to facilitate the 'grisaille' or monochrome underpainting method described in Source 6, which helps in establishing tone before applying color.

underdrawing

The sources do not provide specific details on Homer’s underdrawing for *Summer Squall*. However, consistent with the Realist tradition and the emphasis on 'promptly and surely' imitating light modifications (Source 2), a light, loose underdrawing in charcoal or thinned oil is likely. The focus should be on capturing the dynamic movement of the waves and the boat’s tilt rather than rigid linear precision.

underpainting

A monochrome underpainting (grisaille) is recommended, as described in Source 6. This involves painting the composition in black, white, and ultramarine (or a neutral gray) to establish the 'chiaro-scuro' and tonal values. This step is crucial for 'mentally extracting the red and yellow colours' and focusing on the structural light and shadow before introducing the full color palette (Source 6).

color palette

Ultramarine Blue

Pure Ultramarine

Sky and deep sea shadows. Used to create complementary contrast with orange/yellow tones in the boat or highlights.

Yellow Ochre / Raw Sienna

Yellow Ochre mixed with White or Black for tonal variation

Highlights on waves, boat hull, and atmospheric haze. Complements the blue sky/sea.

White (Lead or Titanium)

Pure White

Foam, cloud highlights, and lightening tones. Note: Adding white can shift hue towards blue in reds/oranges, so correction may be needed (Source 3).

Vermilion / Red Ochre

Vermilion mixed with White or Black

Warm accents on the boat or sails, if present. Used sparingly to create contrast with blue/green surroundings.

composition

The sources do not describe the specific composition of *Summer Squall*. However, Homer’s general practice involves dramatic, dynamic arrangements that emphasize the power of nature. The composition likely utilizes strong diagonal lines (the boat, the waves) to convey movement. The artist should aim for 'great effects' where 'many small ones resulted from them' (Source 1), focusing on the overall impact of the squall rather than minute details.

step by step

underdrawing→underpainting→first pass→refining→finishing

underdrawing

  1. step 01

    Lightly sketch the main forms: the boat, the waves, and the horizon line. Focus on the dynamic tilt of the boat and the direction of the wind.

    Tip — Keep lines light to allow for adjustments. Do not overwork the drawing.

    Loose sketching

underpainting

  1. step 02

    Apply a monochrome underpainting using black, white, and ultramarine. Establish the basic light and shadow patterns (chiaro-scuro).

    Tip — Focus on tonal values. This layer should be dry before proceeding to color glazing (Source 6).

    Grisaille

first pass

  1. step 03

    Begin applying color glazes. Start with the sky and sea, using thin layers of ultramarine and yellow ochre. Use the principle of simultaneous contrast: place blue next to yellow to enhance the intensity of both (Source 8).

    Tip — Ensure the underpainting is dry. Glazes should be transparent to allow the tonal structure to show through.

    Glazing

refining

  1. step 04

    Add highlights and details to the boat and waves. Use scumbling (semi-opaque paint) for foam and lighter areas. Adjust hues by adding complementary colors to neutralize or darken without shifting hue undesirably (Source 3).

    Tip — Watch for hue shifts when adding white to reds/oranges; correct with adjacent colors if needed (Source 3).

    Scumbling

finishing

  1. step 05

    Review the overall harmony. Ensure that the 'colors inherent to the nature of the object' are balanced with chosen colors for atmospheric effect (Source 1). Adjust any areas where the contrast is too weak or too strong.

    Tip — Step back frequently to assess the 'simultaneous contrast' effects. The eye may be fatigued, so take breaks (Source 2).

    Harmonization

critical techniques

Simultaneous Contrast

Placing complementary colors (e.g., blue and orange/yellow) next to each other to enhance their intensity and create visual vibration. This is crucial for depicting the bright highlights against the dark storm clouds and sea.

Glazing and Scumbling

Using transparent glazes to build depth and luminosity, and semi-opaque scumbles for highlights and texture. This method allows for a rich, layered effect that mimics the complexity of natural light.

Hue Correction

When lightening colors with white, adding a small amount of an adjacent color to prevent unwanted hue shifts (e.g., adding orange to red-white mixtures).

common pitfalls

  • →Adding black to darken colors, which can cause undesirable hue shifts (e.g., yellows shifting greenish). Instead, use complementary colors to neutralize and darken (Source 3).
  • →Overworking the paint, losing the 'vitality' of the medium. The goal is expression, not mere deception (Source 4).
  • →Ignoring the effects of simultaneous contrast, leading to flat or muddy colors. Colors must be adjusted based on their surroundings (Source 1, Source 2).
  • →Applying glazes over wet underpainting, which can muddy the colors. Ensure layers are dry (Source 6).

what the sources don't tell us

Where the corpus is silent, we say so rather than guess. These are the gaps a complete recreation guide would normally cover that our source passages don't.

  • ·Specific visual details of *Summer Squall* (e.g., exact position of the boat, number of figures, specific wave patterns) are not described in the sources and must be inferred from the actual artwork or general knowledge of Homer’s work.
  • ·Homer’s specific palette choices for this painting are not detailed in the sources; the suggested palette is based on general oil painting practices and the color theory principles provided.
  • ·The exact medium and varnish used by Homer are not specified; modern equivalents are suggested.

grounded in

The technical procedure in this guide traces to the following classical art-instruction texts.

  • Laws of Contrast of Colour↗

    • 6. Put beside each other two flat tints... — applied to Understanding simultaneous contrast and chiaroscuro effects.
    • 315. As to the advantages the painter will find in it... — applied to Perceiving and imitating light modifications.
  • The Practice and Science of Drawing↗

    • XX MATERIALS — applied to Understanding the role of the medium and avoiding mere deception.
  • The Practice of Oil Painting↗

    • COLOURING A MONOCHROME — applied to Glazing and scumbling techniques, grisaille underpainting.
  • The Science of Painting↗

    • 4. When two colours separated by more than two others... — applied to Enhancing color intensity through complementary juxtaposition.

cross-referenced from

Named facts about this artwork and artist were checked against these reference pages.

  • Wikipedia: Color theory↗

    • Color theory — part 6 — applied to Mixing colors, avoiding hue shifts with black/white, using complements.

Read more about the corpus on the sources page and how the guides are built on the methods page.

read from the painting

observed from the image, not the label
6 dominant colors, measured

what the eye sees

Light enters from the upper left, striking the white foam and sand in the foreground while leaving the offshore waves in deep shadow. The composition anchors on a cluster of dark, striated rocks in the immediate foreground—these are your visual stopping point and the painting's gravitational center. Behind them, churning waves with white crests move from left to right across the middle distance, and the eye travels upward through them toward a brooding, greenish-gray sky where a single dark bird cuts across near the top. The entire scene tilts slightly, with the horizon line higher on the right, which creates compositional tension.

value structure

Your darkest darks live in two places: the deep brown rocks in the foreground and the near-black troughs between waves in the middle distance. The lightest lights are reserved for the white foam caps and the cream-colored sand around the rocks. Between these extremes sits a crucial middle value band—the greenish-gray water and sky that unifies most of the composition. When you squint, you see three clear zones: light foreground (rocks and sand), dark water (middle), and muted sky (top).

observed palette and mixes

  • #e5ece7

    Titanium White with a touch of Yellow Ochre

    Foam crests on the large wave, the brightest sand around the rocks, and highlights catching the wave faces

  • #27251e

    Prussian Blue mixed with Burnt Umber and a hint of black

    The deepest shadows in the rock formation and the darkest wave troughs

  • #484a3b

    Payne's Gray with Prussian Blue and Yellow Ochre

    The dominant mid-tone water throughout the middle distance and the green-tinted storm clouds

  • #bcbeb8

    Titanium White, Yellow Ochre, and a touch of Payne's Gray

    The transitional sand tones and lighter undersides of wave faces

  • #626456

    Burnt Umber, Prussian Blue, and Yellow Ochre in equal measure

    The striations and weathered texture on the rocks, and the darker sand shadows

edges and brushwork

Edges here are intentionally varied: the rocks have hard, defined edges where they meet the foam, but the wave faces dissolve into soft, broken strokes as they recede. The foam itself is rendered with sharp, directional marks that follow the water's movement—you'll see horizontal dashes of white layered over darker water. The sky is loose and atmospheric, with visible brushstrokes that blend horizontally, while the rocks demand more deliberate, structural mark-making that respects their geological planes.

a working sequence

  1. 01

    Establish the horizon and major divisions

    Lightly sketch the horizon line—it runs roughly through the middle-upper third of the composition, slightly higher on the right. Mark the foreground rock cluster as a dark mass below, and indicate the approximate wave positions with light horizontal guidelines. Use a thin mix of Payne's Gray and Prussian Blue on a small round brush to place these reference lines.

  2. 02

    Block in the sky and establish atmospheric tone

    Mix a muted greenish-gray using Prussian Blue, Yellow Ochre, and Payne's Gray. Using a large flat brush, loosely fill the entire upper two-thirds, working around your horizon line. Leave it broken and uneven—don't blend to smoothness. The sky should feel heavier and more turbulent on the left side where the storm clouds gather darkest.

  3. 03

    Lay in the water's dominant value

    Use the same greenish-gray from the sky, but push it slightly darker by adding more Prussian Blue and Burnt Umber. Block in all the water between the horizon and the foreground rocks with a flat brush, working in horizontal strokes. This middle-tone water is your anchor—everything else will relate to it. Don't worry about waves yet; you're just establishing the base.

  4. 04

    Build the rock structure and shadow

    Mix your darkest dark: Prussian Blue, Burnt Umber, and a touch of black. Using a medium round brush, carefully paint the rock cluster in the foreground, respecting the visible striations and planes you see. Note how the rocks have a warm brown tone on their upper surfaces (add Yellow Ochre to your dark mix for these faces) and deeper, cooler shadows in the crevices. Build this deliberately—the rocks are your anchor point and must feel solid.

  5. 05

    Define the wave structure and white foam

    Mix a pale but slightly warm white using Titanium White with just a touch of Yellow Ochre. With a small round brush, paint the prominent white foam line that crests across the large wave in the middle distance—use short, directional dashes that follow the wave's energy. Then add white highlights to the face of the nearest wave, the crest of the wave behind it, and scatter smaller foam marks across the darker water. Keep edges sharp where foam meets dark water.

  6. 06

    Model the wave faces and create dimensionality

    Use a mix of Prussian Blue and Payne's Gray (no brown) for the cooler, sunlit wave faces; this creates contrast with the warm-toned rocks. Paint the visible wave faces with diagonal strokes that suggest their curved surfaces. Notice the greenish cast in the wave transparencies—add a touch of Yellow Ochre to your blue-gray mix for these zones. The waves should feel three-dimensional, receding away from the viewer.

  7. 07

    Soften and integrate the water surfaces

    Step back and assess. Using a flat brush with a dry-ish mix of your water tones, gently blur some edges where foam meets darker water, but preserve hard edges in key places (around the main foam crest). Add darker troughs between waves using very dark green-gray. The water should feel turbulent but readable—not overworked.

  8. 08

    Refine the foreground sand and surrounding light

    Paint the sand around and between the rocks with a warm cream tone—Titanium White with Yellow Ochre and a whisper of Burnt Umber. Make this lighter than the water but darker than pure white foam. Use a small round brush to work around the rock edges, letting some white foam splash over the rocks' upper surfaces. This creates the sense of water action at the shore.

  9. 09

    Final atmosphere and the distant bird

    Add the small dark bird silhouette in the upper right sky using a tiny round brush and very dark gray (Payne's Gray with a touch of black). Then step back: add final accent darks in the deepest rock crevices and water troughs if needed. Soften the sky slightly with a dry brush to suggest wind and storm movement. The painting is complete when the rocks feel weighty, the foam crests sing out, and the entire scene feels alive with movement.

where studies of this painting go wrong

  • Overblending the water—this painting's power comes from visible, directional brushstrokes. Resist the urge to smooth everything. The water should read as turbulent, not polished.
  • Making the rocks too uniform in color. These have real geological complexity: warm brown highlights on top, cool dark shadows in crevices, and visible striations that suggest layered stone. Treat them architecturally, not as a blob.
  • Lighting the foam inconsistently. The foam is caught in strong directional light from the upper left. All foam casts shadows where it folds or recedes—pure white is reserved for the crests and spray, not every bit of white water.
  • Losing the atmosphere in the sky and water. The greenish-gray tone is not a neutral gray—it's full of color and feeling. Keep it slightly warm (Yellow Ochre, Burnt Umber notes) in some passages and cool (Prussian Blue) in others so it vibrates.
  • Placing the bird too prominently or too small. It's a tiny accent—a gesture, not a detail. It should read as a dark speck from a normal viewing distance, adding drama without dominating.

measured difficulty

beginner friendliness
value contrast
palette complexity
compositional simplicity
brushwork visibility

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