---
title: "GET /aviation/cwsus/{cwsuId}/cwas"
method: GET
path: "/aviation/cwsus/{cwsuId}/cwas"
---

# GET /aviation/cwsus/{cwsuId}/cwas

`GET /aviation/cwsus/{cwsuId}/cwas`

## Request

- Base URL: `https://api.weather.gov`
- URL: `https://api.weather.gov/aviation/cwsus/{cwsuId}/cwas`
- Auth: one of:
  - API key in header `User-Agent`
  - API key in header `API-Key`

Returns a list of Center Weather Advisories from a CWSU

## Path parameters

- `cwsuId` 'ZAB' | 'ZAN' | 'ZAU' | 'ZBW' | 'ZDC' | 'ZDV' | 'ZFA' | 'ZFW' | 'ZHU' | 'ZID' | 'ZJX' | 'ZKC' | 'ZLA' | 'ZLC' | 'ZMA' | 'ZME' | 'ZMP' | 'ZNY' | 'ZOA' | 'ZOB' | 'ZSE' | 'ZTL', required: Three-letter identifier for a Center Weather Service Unit (CWSU).

## Response `200`

success

- CenterWeatherAdvisoryCollectionGeoJson: A GeoJSON feature collection. Please refer to IETF RFC 7946 for information on the GeoJSON format.
  - `@context` union
    - unknown[]
      - unknown
    - object
  - `type` 'FeatureCollection', required
  - `features` object[], required
    - `@context` union
      - unknown[]
        - unknown
      - object
    - `id` string, uri
    - `type` 'Feature', required
    - `geometry` union, required: A GeoJSON geometry object. Please refer to IETF RFC 7946 for information on the GeoJSON format.
      - object
        - `type` 'Point', required
        - `coordinates` number[], required: A GeoJSON coordinate. Please refer to IETF RFC 7946 for information on the GeoJSON format.
        - `bbox` number[]: A GeoJSON bounding box. Please refer to IETF RFC 7946 for information on the GeoJSON format.
      - object
        - `type` 'LineString', required
        - `coordinates` GeoJsonCoordinate[], required: A GeoJSON line string. Please refer to IETF RFC 7946 for information on the GeoJSON format.
          - number[]: A GeoJSON coordinate. Please refer to IETF RFC 7946 for information on the GeoJSON format.
        - `bbox` number[]: A GeoJSON bounding box. Please refer to IETF RFC 7946 for information on the GeoJSON format.
      - object
        - `type` 'Polygon', required
        - `coordinates` array[], required: A GeoJSON polygon. Please refer to IETF RFC 7946 for information on the GeoJSON format.
          - GeoJsonCoordinate[]
            - number[]: A GeoJSON coordinate. Please refer to IETF RFC 7946 for information on the GeoJSON format.
        - `bbox` number[]: A GeoJSON bounding box. Please refer to IETF RFC 7946 for information on the GeoJSON format.
      - object
        - `type` 'MultiPoint', required
        - `coordinates` GeoJsonCoordinate[], required
          - number[]: A GeoJSON coordinate. Please refer to IETF RFC 7946 for information on the GeoJSON format.
        - `bbox` number[]: A GeoJSON bounding box. Please refer to IETF RFC 7946 for information on the GeoJSON format.
      - object
        - `type` 'MultiLineString', required
        - `coordinates` GeoJsonLineString[], required
          - GeoJsonCoordinate[]: A GeoJSON line string. Please refer to IETF RFC 7946 for information on the GeoJSON format.
            - number[]: A GeoJSON coordinate. Please refer to IETF RFC 7946 for information on the GeoJSON format.
        - `bbox` number[]: A GeoJSON bounding box. Please refer to IETF RFC 7946 for information on the GeoJSON format.
      - object
        - `type` 'MultiPolygon', required
        - `coordinates` GeoJsonPolygon[], required
          - array[]: A GeoJSON polygon. Please refer to IETF RFC 7946 for information on the GeoJSON format.
            - GeoJsonCoordinate[]
              - …
        - `bbox` number[]: A GeoJSON bounding box. Please refer to IETF RFC 7946 for information on the GeoJSON format.
    - `properties` object, required
      - `id` string
      - `issueTime` string, date-time
      - `cwsu` 'ZAB' | 'ZAN' | 'ZAU' | 'ZBW' | 'ZDC' | 'ZDV' | 'ZFA' | 'ZFW' | 'ZHU' | 'ZID' | 'ZJX' | 'ZKC' | 'ZLA' | 'ZLC' | 'ZMA' | 'ZME' | 'ZMP' | 'ZNY' | 'ZOA' | 'ZOB' | 'ZSE' | 'ZTL': Three-letter identifier for a Center Weather Service Unit (CWSU).
      - `sequence` integer
      - `start` string, date-time
      - `end` string, date-time
      - `observedProperty` string
      - `text` string

## Other responses

- `default`: An error response.

## Changes

- **2026-07-13** `941dbd15eabe`: 1 breaking
  - added `subschema #7` to the `allOf[#/components/schemas/GeoJsonFeatureCollection]/features/items/geometry` response property `oneOf` list for the response status `200`

[Operation history](https://skmtc.dev/weather/apis/weather-gov-api/changes/aviation/cwsus/:cwsuId/cwas/get.md)

---

[API](https://skmtc.dev/weather/apis/weather-gov-api.md) - [All operations](https://skmtc.dev/weather/apis/weather-gov-api/llms.txt) - [OpenAPI document](https://skmtc.dev/weather/apis/weather-gov-api/revisions/ed43606f373e?raw)