NWS Area Alerts (Current Weather Warnings for a U.S. State or Marine Area)

nws/area-alerts

Every weather watch, warning and advisory the National Weather Service currently has in effect anywhere in one U.S. state, territory or marine area, chosen by its two-letter code (TX, CA, PR, or a marine area such as GM for the Gulf of Mexico): event name, severity, urgency, headline, description, instructions, affected areas and when each starts and ends. An empty list means nothing is in effect there. For one coordinate use NWS Active Alerts instead. US only. National Weather Service data as served by Omnial, not an official NWS product.

activeper callv1

Price

$0.00273 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $5.

Data source

National Weather Service

Data from the U.S. National Weather Service (NOAA), public domain per weather.gov/disclaimer. Served by Omnial; not an official NWS product and not endorsed by NOAA or NWS.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "nws/area-alerts" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "nws/area-alerts" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "nws/area-alerts", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "nws/area-alerts", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

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Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.00273

Updated: Oct 18, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "area"
  ],
  "properties": {
    "area": {
      "enum": [
        "AL",
        "AK",
        "AS",
        "AR",
        "AZ",
        "CA",
        "CO",
        "CT",
        "DE",
        "DC",
        "FL",
        "GA",
        "GU",
        "HI",
        "ID",
        "IL",
        "IN",
        "IA",
        "KS",
        "KY",
        "LA",
        "ME",
        "MD",
        "MA",
        "MI",
        "MN",
        "MS",
        "MO",
        "MT",
        "NE",
        "NV",
        "NH",
        "NJ",
        "NM",
        "NY",
        "NC",
        "ND",
        "OH",
        "OK",
        "OR",
        "PA",
        "PR",
        "RI",
        "SC",
        "SD",
        "TN",
        "TX",
        "UT",
        "VT",
        "VI",
        "VA",
        "WA",
        "WV",
        "WI",
        "WY",
        "MP",
        "PW",
        "FM",
        "MH",
        "AM",
        "AN",
        "GM",
        "LC",
        "LE",
        "LH",
        "LM",
        "LO",
        "LS",
        "PH",
        "PK",
        "PM",
        "PS",
        "PZ",
        "SL"
      ],
      "type": "string",
      "description": "Two-letter code in capitals: a state, district or territory (TX, DC, PR, GU) or a marine area (GM Gulf of Mexico, LE Lake Erie, PZ Eastern North Pacific off the West Coast)."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "features"
  ],
  "properties": {
    "title": {
      "type": "string",
      "description": "NWS's own description of the query."
    },
    "updated": {
      "type": "string",
      "description": "When NWS last refreshed the alert list, ISO 8601."
    },
    "features": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "properties": {
            "type": "object",
            "description": "The alert itself: event, severity, urgency, headline, description, instruction, areaDesc, onset, ends and more.",
            "additionalProperties": true
          }
        },
        "additionalProperties": true
      },
      "description": "One entry per active alert; empty when none is in effect."
    }
  },
  "description": "A GeoJSON FeatureCollection of the alerts in effect in the area.",
  "additionalProperties": true
}