# Parameters ## Active AccuWeather alerts — request parameters | Parameter | Description | Default | Required | | ---------- | ----------------------------------------------------------------------------------------------------------------------- | --------- | -------- | | `apikey` | Your API key | — | Yes | | `version` | API version (currently `v1`) | `v1` | Yes | | `format` | Response format. Only GeoJSON is available for this endpoint. | `geojson` | Yes | | `category` | Filter by alert type: `flood`, `non-precipitation`, `severe`, `tropical`, `winter`. All categories returned by default. | All | No | | `language` | Language code for localized content (e.g., `en-us`, `fr-FR`). See [Language Support](/developers/languages). | `en-us` | No | --- ## Government-issued alerts by location key — request parameters | Parameter | Description | Default | Required | | ------------- | ------------------------------------------------------------------------------------------------------------ | ------- | -------- | | `apikey` | Your API key | — | Yes | | `version` | API version (currently `v1`) | `v1` | Yes | | `locationkey` | Unique location ID. Use the [Locations API](/developers/locations/general) to find the appropriate key. | — | Yes | | `format` | Response format. Only JSON is available for this endpoint. | `json` | Yes | | `language` | Language code for localized content (e.g., `en-us`, `fr-FR`). See [Language Support](/developers/languages). | `en-us` | No | | `details` | Include full alert text, color information, and language code in the response. | `false` | No | --- ## Active AccuWeather alerts response | Field | Type | Description | | --------------------------------------------- | ------- | ----------------------------------------------------------------------------------------------------------- | | `type` | string | GeoJSON collection type (`FeatureCollection`) | | `features[]` | array | Array of alert features | | `features[].type` | string | GeoJSON feature type (`Feature`) | | `features[].geometry.type` | string | Geometric shape of the alert area (e.g., `Polygon`) | | `features[].geometry.coordinates` | array | Geographic coordinates outlining the alert area | | `features[].properties.countryCode` | string | Two-character country code | | `features[].properties.dataSourceId` | integer | ID of the alert data provider | | `features[].properties.dataSource` | string | Name of the alert data provider | | `features[].properties.alertId` | integer | Unique alert ID | | `features[].properties.description.localized` | string | Alert summary in the requested language | | `features[].properties.description.english` | string | Alert summary in US English | | `features[].properties.text` | string | Full alert description with danger details and safety actions | | `features[].properties.category` | string | Alert category: `FLOOD`, `NON-PRECIPITATION`, `SEVERE`, `TROPICAL`, or `WINTER` | | `features[].properties.priority` | integer | Urgency ranking (1 = most urgent) | | `features[].properties.colorHex` | string | Hex color code for the alert type indicator | | `features[].properties.startTime` | string | Alert start time in ISO 8601 format | | `features[].properties.endTime` | string | Alert end time in ISO 8601 format | | `features[].properties.lastAction.localized` | string | Alert status in the requested language. See [Alerts Action Reference](/developers/reference/alerts-action). | | `features[].properties.lastAction.english` | string | Alert status in US English | --- ## Government-issued alerts by location key response | Field | Type | Description | | ----------------------------- | ------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `CountryCode` | string | Two-character country code | | `AlertID` | integer | Unique alert ID | | `Description.Localized` | string | Alert summary in the requested language | | `Description.English` | string | Alert summary in US English | | `Category` | string | Alert type classification (`FIRE`, `FLOOD`, `HAZARD`, `MARINE`, `NON-PRECIPITATION`, `SEVERE`, `TROPICAL`, `WIND`, `WINTER`) | | `Priority` | integer | Urgency ranking based on alert type (1 = highest priority) | | `Type` | string | Abbreviated alert description | | `TypeID` | string | Alphanumeric ID for the alert type | | `Class` | string | Alert classification. Not available for all countries. Can be `null`. | | `Level` | string | Alert severity level. Not available for all countries. Can be `null`. | | `AlarmLevel` | string | Color-based alert severity. See [Alarm Level Reference](/developers/reference/alarm-level). Possible values: `Red` (critical — immediately notify user), `Orange` (medium — notify user upon any interaction), `Yellow` (normal — notify user on a schedule or when asked), `null` (default — no alert severity). | | `Color` | object | Color information associated with the alert. | | `Color.Name` | string | Named color (e.g., `MediumBlue`, `Maroon`). | | `Color.Red` | integer | Red component of the alert color (0–255). | | `Color.Green` | integer | Green component of the alert color (0–255). | | `Color.Blue` | integer | Blue component of the alert color (0–255). | | `Color.Hex` | string | Hex code for the alert color (e.g., `#0000CD`). | | `Source` | string | Alert data provider | | `SourceId` | integer | ID of the alert data provider | | `Disclaimer` | string | Required disclaimer text to display with the alert data. Can be `null`. | | `Area[]` | array | Array of affected areas, timing, and alert text | | `Area[].Name` | string | Name of the area under the alert | | `Area[].StartTime` | string | Alert start time in ISO 8601 format | | `Area[].EpochStartTime` | integer | Alert start time as epoch seconds | | `Area[].EndTime` | string | Alert end time in ISO 8601 format | | `Area[].EpochEndTime` | integer | Alert end time as epoch seconds | | `Area[].LastAction.Localized` | string | Alert status in the requested language. See [Alerts Action Reference](/developers/reference/alerts-action). | | `Area[].LastAction.English` | string | Alert status in US English | | `Area[].Text` | string | Full alert description. Returned when `details=true`. | | `Area[].LanguageCode` | string | Language code of the alert text (e.g., `en`). Returned when `details=true`. | | `Area[].Summary` | string | Brief alert summary | | `HaveReadyStatements` | boolean | Whether ready statements are available for this alert | | `MobileLink` | string | Link to alert on AccuWeather mobile site | | `Link` | string | Link to alert on AccuWeather website |