@velocibot/mcp-marine-weather

MCP tool for marine weather forecasts using the NOAA Weather API (api.weather.gov).

Features

• Current marine conditions (temperature, wind speed/direction)
• Multi-day forecast periods
• Active marine weather warnings and alerts
• Filters alerts for marine-relevant events (storms, wind, surf, coastal flooding)
• No API key required (uses NOAA public API)

MCP Server Configuration

Add to your MCP client configuration:

{
  "mcpServers": {
    "marine-weather": {
      "command": "npx",
      "args": ["-y", "@velocibot/mcp-marine-weather"]
    }
  }
}

Or if installed globally:

{
  "mcpServers": {
    "marine-weather": {
      "command": "mcp-marine-weather"
    }
  }
}

Tool: marine_forecast

Input: | Parameter | Type | Required | Description | |-----------|--------|----------|--------------------------| | lat | number | yes | Latitude (-90 to 90) | | lon | number | yes | Longitude (-180 to 180) |

Example - BVI Waters:

{
  "lat": 18.4286,
  "lon": -64.6185
}

Output:

{
  "conditions": {
    "summary": "Partly Cloudy",
    "temperature": 82,
    "temperatureUnit": "F",
    "windSpeed": "15 mph",
    "windDirection": "E",
    "detailed": "Partly cloudy with east winds around 15 mph...",
    "period": "This Afternoon"
  },
  "forecast": [
    {
      "name": "Tonight",
      "temperature": 76,
      "windSpeed": "10 mph",
      "windDirection": "E",
      "forecast": "Mostly Clear"
    }
  ],
  "warnings": [
    {
      "event": "Small Craft Advisory",
      "headline": "Small Craft Advisory until 6 PM",
      "severity": "Moderate"
    }
  ]
}

Coverage

This tool uses the NOAA Weather API which covers the United States and its territories, including:

• US Virgin Islands
• Puerto Rico
• Guam
• American Samoa
• All US coastal waters

License

MIT