# Parameters ## Current strikes by bounding box — request parameters | Parameter | Description | Default | Required | | -------------- | ---------------------------------------------------------------------------------------------------------------------------- | ------- | -------- | | `apikey` | Your API key | — | Yes | | `version` | API version | `v1` | Yes | | `timeInterval` | Time span in minutes. Available: `5`, `15`, `30`, `60`, `120`. | — | Yes | | `format` | Response format (e.g., `.geojson`) | — | Yes | | `upperLeft` | Northwestern corner of the bounding box as `latitude,longitude` in decimal format. | — | Yes | | `lowerRight` | Southeastern corner of the bounding box as `latitude,longitude` in decimal format. | — | Yes | | `offset` | Result page offset. Results returned in sets of 5000. `0` = first set, `1` = second set, etc. `-1` or omitted = all results. | `-1` | No | --- ## Current strikes by point and radius — request parameters | Parameter | Description | Default | Required | | ---------------- | ---------------------------------------------------------------------------------------------------------------------------- | ------- | -------- | | `apikey` | Your API key | — | Yes | | `version` | API version | `v1` | Yes | | `timeInterval` | Time span in minutes. Available: `5`, `15`, `30`, `60`, `120`. | — | Yes | | `format` | Response format (e.g., `.geojson`) | — | Yes | | `q` | Central search location as `latitude,longitude` in decimal format. | — | Yes | | `distanceRadius` | Search radius in miles from center point. Maximum 60 miles. | `5` | No | --- ## Forecasts by point — request parameters | Parameter | Description | Default | Required | | --------- | --------------------------------------------------- | ------- | -------- | | `apikey` | Your API key | — | Yes | | `version` | API version | `v1` | Yes | | `q` | Location as `latitude,longitude` in decimal format. | — | Yes | --- ## Historical strikes by point and radius — request parameters | Parameter | Description | Default | Required | | ---------------- | --------------------------------------------------------------------------------------------- | ------- | -------- | | `apikey` | Your API key | — | Yes | | `version` | API version | `v1` | Yes | | `q` | Central search location as `latitude,longitude` in decimal format. | — | Yes | | `startDate` | Start date in ISO 8601 format (yyyy-mm-ddThh:mm:ss+hh:mm). | — | Yes | | `offset` | Result page offset. Results returned in sets of 5000. `0` = first set, `1` = second set, etc. | — | Yes | | `distanceRadius` | Search radius in miles from center point. Maximum 60 miles. | `5` | No | | `strikeType` | Filter by strike type: `ic` (intra-cloud) or `cg` (cloud-to-ground). | — | No | | `details` | Include extended information in the response. | `false` | No | --- ## Current endpoints response parameters | Field | Type | Description | | ----------------------------------- | ------- | ------------------------------------------------------------------------------------------------------------- | | `type` | string | GeoJSON collection type (`FeatureCollection`) | | `features[]` | array | Array of lightning strike features | | `features[].type` | string | GeoJSON feature type (`Feature`) | | `features[].geometry.type` | string | Geometry type (`Point`) | | `features[].geometry.coordinates` | array | Geolocation coordinates for the lightning strike | | `features[].properties.id` | string | Unique lightning strike ID | | `features[].properties.date` | string | Observation date/time in UTC | | `features[].properties.sourceId` | integer | Data source: `84` — GOES East GLM, `85` — GOES West GLM, `86` — AccuWeather Lightning Network | | `features[].properties.strikeType` | string | Strike type: `ic` (intra-cloud), `cg` (cloud-to-ground), `""` (missing/not applicable) | | `features[].properties.peakCurrent` | integer | Strike amperage. Positive = positively-charged (more energetic). Negative = negatively-charged (most common). | --- ## Forecasts endpoints response parameters | Field | Type | Description | | ---------------------------- | ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `latitude` | number | North-south position of the requested point | | `longitude` | number | East-west position of the requested point | | `initDateTime` | string | Forecast start date/time in ISO 8601 format (`yyyy-mm-ddThh:mm:ssZ`). Data returned in 10-minute intervals for a 2-hour period. | | `forecasts[]` | array | Array of forecast data for the requested location | | `forecasts[].startDateTime` | string | Forecasted date/time in ISO 8601 format (yyyy-mm-ddThh:mm:ssZ) | | `forecasts[].startEpochTime` | integer | Forecasted date/time as epoch seconds | | `forecasts[].probability` | number | A percentile indicating the predicted likelihood of at least one lightning strike occurring at the requested location during the indicated ten-minute interval | --- ## Historical endpoints response parameters | Field | Type | Description | | ------------------------------------------------------------------ | ------- | ------------------------------------------------------------------------------------------------------------- | | `pageCount` | integer | Current result page. Results in sets of 5000. `-1` = all results displayed. | | `resultsCount` | integer | Total number of lightning strikes returned | | `lightningSummary` | object | Overview of lightning strike results | | `lightningSummary.positiveStrikes` | integer | Total positively-charged strikes | | `lightningSummary.negativeStrikes` | integer | Total negatively-charged strikes | | `lightningSummary.closestStrike` | object | Lightning strike nearest to the search center (`q`) | | `lightningSummary.closestStrike.type` | string | GeoJSON collection type (`FeatureCollection`) | | `lightningSummary.closestStrike.features[]` | array | Closest strike data | | `lightningSummary.closestStrike.features[].type` | string | GeoJSON feature type (`Feature`) | | `lightningSummary.closestStrike.features[].geometry.type` | string | Geometry type (`Point`) | | `lightningSummary.closestStrike.features[].geometry.coordinates` | array | Coordinates in decimal format | | `lightningSummary.closestStrike.features[].properties.id` | string | Unique strike ID | | `lightningSummary.closestStrike.features[].properties.date` | string | Strike date/time in ISO 8601 format | | `lightningSummary.closestStrike.features[].properties.sourceId` | integer | Data source ID | | `lightningSummary.closestStrike.features[].properties.strikeType` | string | Strike type: `ic`, `cg`, or `""` | | `lightningSummary.closestStrike.features[].properties.peakCurrent` | integer | Strike amperage. Positive = positively-charged (more energetic). Negative = negatively-charged (most common). | | `lightningStrikes` | object | Individual lightning strike data | | `lightningStrikes.type` | string | GeoJSON collection type (`FeatureCollection`) | | `lightningStrikes.features[]` | array | Array of individual strike features | | `lightningStrikes.features[].type` | string | GeoJSON feature type (`Feature`) | | `lightningStrikes.features[].geometry.type` | string | Geometry type (`Point`) | | `lightningStrikes.features[].geometry.coordinates` | array | Strike coordinates | | `lightningStrikes.features[].properties.id` | string | Unique strike ID | | `lightningStrikes.features[].properties.date` | string | Strike date/time in ISO 8601 format | | `lightningStrikes.features[].properties.sourceId` | integer | Data source ID | | `lightningStrikes.features[].properties.strikeType` | string | Strike type: `ic`, `cg`, or `""` | | `lightningStrikes.features[].properties.peakCurrent` | integer | Strike amperage. Positive = positively-charged (more energetic). Negative = negatively-charged (most common). |