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io.github.cyanheads/nws-weather-mcp-server

io.github.cyanheads/nws-weather-mcp-server · v0.11.1

Measured by MCP Station

Description written by the publisher, not verified

Get US weather forecasts, active alerts, and current observations.

Connect

claude mcp add --transport http nws-weather-mcp-server https://nws.caseyjhand.com/mcp

{
  "mcpServers": {
    "nws-weather-mcp-server": {
      "url": "https://nws.caseyjhand.com/mcp"
    }
  }
}

Tools as reported by the server

• nws_get_forecast
  Get the weather forecast for a US location. Returns either named 12-hour periods (default) or hourly breakdowns.
• nws_search_alerts
  Search active weather alerts (watches, warnings, advisories) across the US. Filter by state, coordinates, zone, land/marine region, event type, severity, urgency, or certainty. area, point, zone, region_type, and region are mutually exclusive — provide at most one. Omit all filters for a national se
• nws_get_alert
  Fetch one NWS alert message by ID — a current alert, or an earlier message that an update or cancellation has since superseded and that an active-alert search no longer returns. Takes an id from nws_search_alerts or a references[].identifier from any alert, and returns the same alert fields nws_sear
• nws_get_alert_counts
  Count active weather alerts nationwide, per state/territory or marine area, and per marine region, in one small response — the answer to "how many alerts are active, and where" without fetching the alerts themselves. Counts cover every message status, Test and Exercise included, so totalAlerts can r
• nws_get_observations
  Get current weather observations (actual measured conditions). Accepts coordinates (resolves nearest station automatically) or a station ID directly (e.g., "KSEA").
• nws_get_observation_history
  Get a station's recent observation history, newest first — the trend behind the single latest reading nws_get_observations returns (is pressure falling, is the wind picking up). NWS keeps about the last 7 days per station, and a busy airport station reports as often as every 5 minutes, so a day can
• nws_find_stations
  Find weather observation stations near a location. Returns stations sorted by proximity with distance and bearing. Use to discover station IDs for nws_get_observations.
• nws_list_alert_types
  List all valid NWS alert event type names. Use to discover valid values for the event filter in nws_search_alerts, or to browse alert categories. No parameters required.
• nws_get_office_discussion
  Get the latest narrative forecast product from a Weather Forecast Office (WFO). The default product is AFD (Area Forecast Discussion), which explains the meteorological reasoning behind the forecast — synoptic setup, model guidance, and forecaster confidence. Other types: HWO (Hazardous Weather Outl
• nws_get_zone_forecast
  Get the text forecast for an NWS forecast zone. Returns named forecast periods (e.g., "Today", "Tonight", "Monday") with detailed narrative text — the human-readable, zone-level forecast written by local forecasters. Completes the alert-to-forecast chain: nws_search_alerts returns each affected zone

Tool changes

• 2026-10-24: nws_get_forecast, nws_search_alerts, nws_get_alert, nws_get_alert_counts, nws_get_observations, nws_get_observation_history, nws_find_stations, nws_list_alert_types, nws_get_office_discussion, nws_get_zone_forecast
• 2026-10-17: nws_get_forecast, nws_search_alerts, nws_get_alert, nws_get_alert_counts, nws_get_observations, nws_get_observation_history, nws_find_stations, nws_list_alert_types, nws_get_office_discussion, nws_get_zone_forecast
• 2026-10-16: nws_get_forecast, nws_search_alerts, nws_get_alert_counts, nws_get_observations, nws_get_observation_history, nws_find_stations, nws_list_alert_types, nws_get_office_discussion, nws_get_zone_forecast

Repository · JSON · Text for agents · Registry updated 2026-10-23