Weather Radar#

This skill provides a way to generate a composite animated GIF showing current and historical weather radar data overlaid on a real geographic base map (OpenStreetMap). It fetches real-time radar layers from RainViewer.

How to Use#

When the user asks for a weather radar map or animated cloud GIF for a location, run the Python script scripts/generate_radar.py to create the animation. It outputs a composite 3x3 tile grid (768x768 pixels).

Executing the script#

First, look up the latitude and longitude of the requested city or use the provided coordinates. If no city is specified, default to the user's known location or a sensible default.

bash

# Example for Beijing
python scripts/generate_radar.py --lat 39.9042 --lon 116.4074 --zoom 7 --out /home/ubuntu/.openclaw/workspace/radar_map.gif

Parameters:

• --lat: Latitude of the center point (float)
• --lon: Longitude of the center point (float)
• --zoom: Zoom level (default: 7). Note: Zoom 7 is optimal for weather systems. Higher zooms (like 9 or 10) often result in empty/missing radar tiles from the API.
• --frames: Number of frames to animate (default: 8, representing roughly the last 80 minutes).
• --out: Output path for the generated GIF image (must end in .gif).

Sending the result#

After generating the radar_map.gif, send it to the user using the message tool with action="send", asDocument=true, and the filePath parameter set to the output image path.

Dependencies#

The script requires requests and Pillow. If they are not installed, run pip install requests Pillow before executing the script.