termidar 🌦️

Real-time weather radar in your terminal!

Video:

Screen.Recording.2025-07-30.at.12.35.27.PM.mov

Features

• 🎯 Real-time weather radar - Fetches live NEXRAD data
• 🌍 ZIP code lookup - Enter any US ZIP code
• 🎬 Animated radar loop - Watch weather patterns move
• 🔄 Auto-refresh - Updates every 5 minutes
• ⚡ Interactive controls - Play, pause, navigate frames
• 🌈 Precipitation intensity - Color-coded from light to severe

Installation

From Source

# Clone the repository
git clone https://github.com/N-Erickson/termidar.git
cd termiradar

# Build and install
go install

# Or run directly
go run main.go

Requirements

• Go 1.19 or higher
• Terminal with Unicode support
• Internet connection for radar data

Usage

termidar

Controls

Key	Action
Enter	Submit ZIP code
Space	Play/Pause animation
← / →	Previous/Next frame
+ / -	Increase/Decrease speed
R	Refresh radar data
ESC	Return to ZIP input
Q	Quit

Supported ZIP Codes

termidar works with any valid US ZIP code. Some examples:

• 10001 - New York, NY
• 60601 - Chicago, IL
• 98101 - Seattle, WA
• 33101 - Miami, FL
• 90210 - Beverly Hills, CA
• 02108 - Boston, MA
• 75201 - Dallas, TX
• 80202 - Denver, CO

How It Works

termidar fetches real weather radar data from multiple sources:

1. Iowa State University Mesonet - NEXRAD radar imagery
2. RainViewer API - Global precipitation data
3. NWS API - Radar station information

The radar images are processed and converted to ASCII art for terminal display, with color-coded precipitation intensity:

• 🟢 Light precipitation
• 🟡 Moderate precipitation
• 🟠 Heavy precipitation
• 🔴 Severe precipitation

Development

Building

# Get dependencies
go mod download

# Build binary
go build -o termidar

# Run tests
go test ./...

Architecture

• Bubble Tea - Terminal UI framework
• Lipgloss - Styling and layout
• Image processing - Converts radar PNGs to terminal display
• Concurrent updates - Separate timers for animation, sweep, and refresh

License

MIT License - see LICENSE file for details

Acknowledgments

• Charm for the amazing Bubble Tea framework
• Iowa State University for radar data access
• RainViewer for precipitation API
• National Weather Service for weather data

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