Weatherin2D/2D-Weather-Sandbox-Extra ? reverse-engineered prompt

Build me a browser based 2D weather sandbox that lets me play with a realtime storm simulation in the troposphere.

I want to see clouds form, grow, move, and produce precipitation that can look like particles or smooth rain curtains. It should feel interactive, so I can change things like temperature, moisture, wind, and other storm settings, then watch the weather respond. Include a simple on screen control panel, a sounding style chart or graph for the atmosphere, keyboard and mouse controls, and a way to save and load scenarios.

Make it run in the browser with a clean visual style, realistic looking sunlight and cloud shading, and keep it fast enough to simulate on the fly. If you can, include lightning and some basic multiplayer or shared local testing support too. Use current docs online if you need to, and keep it easy to run locally with one command.