Wind & motion

Tornado Valley

A twisting column of air. A little valley in its path.

0trees & roofs lost

0pieces in motion

Crossing the valley

Storm strength 1.5× Wind radius 4.5 Travel speed 1.0×

Interaction

Drag to orbit · Scroll to zoom · Right-drag to pan

Try ¼× as the funnel reaches the farm. Restart with the same seed to compare a stronger storm. Scene only hides the controls for recording.

An illustrative wind model, not a weather forecast. Fences and terrain remain fixed.

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Tornado Valley

Follow a twisting funnel through a little valley. Steer its path, change the wind, and watch trees fall and debris spiral into the air.

A grey tornado beneath low storm clouds crossing a green valley dotted with pine trees and farm buildings.

Enable JavaScript in a browser with WebGL 2 to run this interactive simulation.

A tornado is a rotating column of air reaching from a storm cloud to the ground. Follow one through this small valley.

Air circles the funnel, draws inward, and rises. Loose pieces can spiral upward before falling back to the ground.
Trees and roofs accumulate damage when local wind is strong enough. Each has its own resistance, so some survive a close pass.
Storm strength changes the wind force. Wind radius changes how wide its strongest winds reach. Travel speed changes how long each place is exposed.
Steer tornado lets you tap a destination on the ground. Follow the valley returns to the automatic route. The storm fades after about a minute of simulated time.

Try this: Watch the farm at ¼×. Restart with the same seed, raise Storm strength, and compare the damage. Scene only hides the controls; Escape or Show controls brings them back. This is an illustrative model, not a weather forecast. Terrain and fences remain fixed; buildings lose their roofs and leave low walls.