PPolySim OS
Use case · powered by Atmospheric Stability

Atmospheric Stability for a jet stream

Simulate a jet stream live in your browser. This runs the real Atmospheric Stability solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

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.

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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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About this simulation

The full Atmospheric Stability tool models a jet stream with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with Atmospheric Stability

Other ways to simulate a jet stream

Frequently asked questions

How do I simulate a jet stream?
Open this page and use the live Atmospheric Stability tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?
Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?
Absolutely — every input is adjustable, and with data import you can drive a jet stream from your own measurements.