PPolySim OS
Earth & First Responders Pack · Multi-Solver

Wildfire Risk Map

Fuel, weather, spread. This multi-solver chains 2 solvers into a single guided workflow — run each step in order and carry the result forward.

Workflow steps
  1. fire-spread
  2. atmospheric-stability
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Wildfire / Fire SpreadLive

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.

▶ Run in Python

Data Inspector

Cells burned0
Wind15 @ 90°
Slope10°

Governing equation

Reading this result: Moderate wind and slope: the fire spreads roughly outward, with a gentle bias downwind and uphill.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

2

Atmospheric Stability

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Atmospheric Stability (CAPE)Live

Controls

Presets

When a rising air parcel stays warmer than its surroundings, it keeps accelerating upward — the fuel for thunderstorms. The pink area between the parcel and environment curves is CAPE, the convective available potential energy. Large CAPE means tall, violent storms; a stable profile suppresses them. This is the core of severe-weather forecasting.

▶ Run in Python

Data Inspector

CAPE (approx)18150 J/kg
Forecastsevere storms
Lapse rate7.5 °C/km

Governing equation

Reading this result: Steep environmental lapse (7.5 °C/km) keeps the parcel far warmer than its surroundings all the way up — huge CAPE fuels tall, violent updrafts.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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More in the Earth & First Responders pack

Frequently asked questions

What is the Wildfire Risk Map multi-solver?
Wildfire Risk Map is a guided workflow that chains 2 individual PolySim solvers into one end-to-end analysis, piping each result into the next step.
Is it free to use?
Yes. Every step runs entirely in your browser using real numerics — no install, no account, no cloud cost. Custom or private solver packs are available as a paid service.