---
title: "Verified storm footprints in a viewport as a GeoJSON FeatureCollection"
method: GET
path: "/v1/swaths/geometry"
---

# Verified storm footprints in a viewport as a GeoJSON FeatureCollection

`GET /v1/swaths/geometry`

## Request

- Base URL: `https://swathapi.com`
- URL: `https://swathapi.com/v1/swaths/geometry`
- Auth: HTTP bearer

Every verified swath polygon intersecting the bbox, newest first, simplified for map display (~100 m tolerance by default). Properties carry storm id, type, verified time, peak hail size and peak wind. Built for drawing a storm layer under a canvassing map. Costs 1 credit.

## Query parameters

- `bbox` string, required
- `since` string
- `type` 'hail' | 'wind'
- `limit` integer
- `simplify` number

## Response `200`

GeoJSON FeatureCollection

- object
  - `type` 'FeatureCollection'
  - `features` object[]
    - `type` string
    - `id` string
    - `geometry` object
    - `properties` object
      - `swath_id` string
      - `storm_id` string
      - `type` string
      - `county` string, nullable
      - `verified_at` string
      - `last_seen_at` string
      - `mesh_max_in` number, nullable
      - `wind_max_mph` number, nullable
      - `area_km2` number, nullable
      - `link` string
  - `count` integer
  - `truncated` boolean

---

[API](https://skmtc.dev/swathapi/apis/swath-api.md) · [All operations](https://skmtc.dev/swathapi/apis/swath-api/llms.txt) · [OpenAPI document](https://skmtc.dev/swathapi/apis/swath-api/revisions/7dbea40372ef?raw)