soundings-mcp 🛰️

A Model Context Protocol (MCP) server for fetching, analyzing, and visualizing RAOB (Rawinsonde Observation) upper-air sounding data.

Features

• Station Search: Find the nearest balloon launch site by city name or GPS coordinates.

• Thermodynamic Analysis: Automated calculation of SBCAPE, SBCIN, and LCL heights using MetPy.

• Skew-T Visuals: Generates full Log-P diagrams with temperature, dewpoint, and parcel paths.

• Cloud Integration: Automatically uploads plots to S3-compatible storage for easy sharing with LLMs.

Related MCP server: Aviation Weather MCP Server

Prerequisites

• Python 3.10+

• S3-Compatible Storage: AWS S3, Cloudflare R2, or Backblaze B2.

• Railway Account: For cloud hosting (supports SSE transport).

Environment Variables

Configure these in your Railway dashboard:

• S3_BUCKET_NAME: Your bucket name.

• S3_ENDPOINT_URL: Your S3 endpoint (e.g., https://s3.amazonaws.com).

• AWS_ACCESS_KEY_ID: Your access key.

• AWS_SECRET_ACCESS_KEY: Your secret key.

Installation (Local Development)

1. Clone the repo: git clone https://github.com/your-username/soundings-mcp.git

2. Install dependencies: pip install -r requirements.txt

3. Run locally: python main.py

Usage with Claude Desktop

Add this to your claude_desktop_config.json:

{
  "mcpServers": {
    "soundings": {
      "type": "sse",
      "url": "https://your-railway-app-url.up.railway.app/sse"
    }
  }
}