Earth · 2 tools

NOAA National Weather Service

Get active U.S. weather alerts and the official 7-day forecast for any U.S. location.

Live nowSource checked November 1Free tier

Notes. Public domain. NWS asks that reformatted data not be presented as an official product or imply endorsement; we label it. Terms checked 2026-11-02: https://www.weather.gov/disclaimer

Active weather alerts

nws.alerts

FreeLive now

Active U.S. National Weather Service alerts (warnings, watches, advisories) for a state or a point, most severe first, with areas, timing, a shortened description and the link to the full alert.

Inputs

Name	Type	Description
`area`	string	U.S. state or territory code, e.g. "CA", "TX", "PR"
`lat`	number	Or a point: latitude (give with lon)range: -90 to 90
`lon`	number	Or a point: longitude (give with lat)range: -180 to 180
`min_severity`	string	one of: Minor, Moderate, Severe, Extreme; default: "Minor"
`limit`	integer	default: 10; range: 1 to 25

Example output

{"query":{"area":"CA","lat":null,"lon":null,"min_severity":"Moderate"},"total_active":7,"count":3,"alerts":[{"event":"Flood Watch","severity":"Severe","urgency":"Future","certainty":"Possible","headline":"Flood Watch issued November 1 at 1:36PM PST until November 2 at 4:00AM PST by NWS Las Vegas NV","areas":"Northwest Plateau; Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Hualapai Mountains; Northwest Deserts; San Bernardino County-Upper Colorado River Valley; Lincoln County; Northeast Clark County; Lake Mead - NV side; Lake Mohave - NV side","sent":"2026-11-01T13...

Data license

Public domain · Data from the NOAA National Weather Service (public domain), reformatted and shortened by Real World MCP. Not an official NWS product and not endorsed by NOAA/NWS. Source

Try it

…

Call it

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "nws.alerts",
    "arguments": {
      "area": "CA",
      "min_severity": "Moderate",
      "limit": 3
    }
  }
}

curl -sS -X POST https://www.realworldmcp.com/api/call/nws.alerts \
  -H 'content-type: application/json' \
  -d '{"area": "CA", "min_severity": "Moderate", "limit": 3}'

const res = await fetch("https://www.realworldmcp.com/api/call/nws.alerts", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"area": "CA", "min_severity": "Moderate", "limit": 3})
});
console.log(await res.json());

U.S. weather forecast

nws.forecast