Wind and slope are the two forces that turn a spot fire into a running crown fire. Adjust both and watch the fire front elongate and race uphill in real time.
Wildfire / Fire SpreadLive
wind + slope driven spread
Controls
Presets
Fire spreads cell to cell, biased downwind and uphill — the two dominant drivers of real wildfire rate-of-spread. Rotate the wind and raise the slope to see how a fire front elongates and races upslope. For training and situational awareness only.
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How it works
This fire-behavior model spreads flame from cell to cell with probabilities biased downwind and upslope — the dominant drivers of real rate-of-spread. Built for wildland fire training, tabletop exercises, and public education. It is a qualitative teaching tool, not a certified fire-behavior prediction system.
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Ask the AI about this model
The math, the assumptions, real-world uses, or a code translation — explained for this exact simulation.
Is this wildfire spread simulator tool really free?▾
Yes. Wildfire / Fire Spread runs entirely in your browser using your device's own compute, so local use is free forever. You only pay Compute Tokens if you scale a job to the cloud.
Do I need to install anything?▾
No. Everything runs client-side in a modern browser — no downloads, no license, no account required to start.
Can I save or share my simulation?▾
Create a free account to save projects, and use a shareable embed or minted DOI to publish a live, interactive version anywhere.
How accurate are the results?▾
The solver uses established numerical methods, but results are for research and educational purposes and should be validated against experiment or professional review before you rely on them.