Nws Weather MCP Server

Install

Works with Claude Code, VS Code, Codex, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/cyanheads-nws-weather-mcp-server

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools

10 read · 0 write · 0 deleteRead-only

Secrets

None asked for

Install scripts

Not scanned yet

Runs as

Node.js package

Tools (10)

As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].

• nws_find_stationsNws Find Stationsread-only

  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_get_alertNws Get Alertread-only

  Fetch one NWS alert message by ID — a current alert, or an earlier message that an update or cancellation has since superseded and that an active-alert search no longer returns.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_search_alerts does. The message carries its own references, newest first, so a revision chain is walked one call per message. Every reference sharing the newest sent time is an immediate predecessor (an update can merge several earlier segments), so references[0] is one of them, not always the only one.…

• nws_get_alert_countsNws Get Alert Countsread-only

  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 run above the totalCount a national nws_search_alerts search reports under its default status of Actual. An alert counts once in each area its zones fall in, so the area counts can sum past totalAlerts; landAlerts plus marineAlerts equals totalAlerts. Takes no filters. For counts per zone or under a …

• nws_get_forecastNws Get Forecastread-only

  Get the weather forecast for a US location. Returns either named 12-hour periods (default) or hourly breakdowns.

• nws_get_observation_historyNws Get Observation Historyread-only

  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 run past 100 observations: narrow with start (inclusive) and end (exclusive), and page back to older observations with nextCursor. Takes a station ID; use nws_find_stations to find one near a coordinate.

• nws_get_observationsNws Get Observationsread-only

  Get current weather observations (actual measured conditions). Accepts coordinates (resolves nearest station automatically) or a station ID directly (e.g., "KSEA").

• nws_get_office_discussionNws Get Office Discussionread-only

  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 Outlook, 1-7 day severe/flood/winter outlook), ZFP (Zone Forecast Product, zone-by-zone text), SPS (Special Weather Statement, short-fuse advisory), FWF (Fire Weather Planning Forecast, one segment per fire weather zone). The office code is the 3-letter WFO identifier returned as the "office" field by n…

• nws_get_zone_forecastNws Get Zone Forecastread-only

  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 in "affectedZones" as a code plus a type, and nws_find_stations returns codes in the "forecastZone" column. Only affectedZones entries with type "forecast" work here; entries typed "county" have no text forecast upstream and will not resolve. An entry typed "fire" has its forecast in a segment of t…

• nws_list_alert_typesNws List Alert Typesread-only

  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_search_alertsNws Search Alertsread-only

  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 search.

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Weekly downloads

421

Last commit

Oct 23, 2026 (8 days ago)

Last release

Oct 23, 2026 (8 days ago)

Last package publish

Oct 23, 2026 (8 days ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Registry name

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

Version

0.11.1

Auth

Auth not stated

Packages

npm @cyanheads/nws-weather-mcp-servernpm @cyanheads/nws-weather-mcp-server

License

Apache-2.0

Repository

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

First seen

Oct 24, 2026

Last checked

Oct 24, 2026

Source

Official MCP Registrygithub-graphql