{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/weather-gov/refs/heads/main/json-schema/weather-gov-gridpoint-schema.json",
  "title": "Gridpoint",
  "description": "Raw forecast data for a 2.5km grid square.\nThis is a list of all potential data layers that may appear. Some layers may not be present in all areas.\n* temperature\n* dewpoint\n* maxTemperature\n* minTemperature\n* relativeHumidity\n* apparentTemperature\n* heatIndex\n* windChill\n* wetBulbGlobeTemperature\n* skyCover\n* windDirection\n* windSpeed\n* windGust\n* weather\n* hazards: Watch and advisory products in effect\n* heatRisk\n* probabilityOfPrecipitation\n* quantitativePrecipitation\n* iceAccumulation\n* snowfallAmount\n* snowLevel\n* ceilingHeight\n* visibility\n* transportWindSpeed\n* transportWindDirection\n* mixingHeight\n* hainesIndex\n* lightningActivityLevel\n* twentyFootWindSpeed\n* twentyFootWindDirection\n* waveHeight\n* wavePeriod\n* waveDirection\n* primarySwellHeight\n* primarySwellDirection\n* secondarySwellHeight\n* secondarySwellDirection\n* wavePeriod2\n* windWaveHeight\n* dispersionIndex\n* pressure: Barometric pressure\n* probabilityOfTropicalStormWinds\n* probabilityOfHurricaneWinds\n* potentialOf15mphWinds\n* potentialOf25mphWinds\n* potentialOf35mphWinds\n* potentialOf45mphWinds\n* potentialOf20mphWindGusts\n* potentialOf30mphWindGusts\n* potentialOf40mphWindGusts\n* potentialOf50mphWindGusts\n* potentialOf60mphWindGusts\n* grasslandFireDangerIndex\n* probabilityOfThunder\n* davisStabilityIndex\n* atmosphericDispersionIndex\n* lowVisibilityOccurrenceRiskIndex\n* stability\n* redFlagThreatIndex\n",
  "type": "object",
  "properties": {
    "@context": {
      "$ref": "#/components/schemas/JsonLdContext"
    },
    "geometry": {
      "$ref": "#/components/schemas/GeometryString"
    },
    "@id": {
      "type": "string",
      "format": "uri"
    },
    "@type": {
      "enum": [
        "wx:Gridpoint"
      ],
      "type": "string"
    },
    "updateTime": {
      "type": "string",
      "format": "date-time"
    },
    "validTimes": {
      "$ref": "#/components/schemas/ISO8601Interval"
    },
    "elevation": {
      "$ref": "#/components/schemas/QuantitativeValue"
    },
    "forecastOffice": {
      "type": "string",
      "format": "uri"
    },
    "gridId": {
      "type": "string"
    },
    "gridX": {
      "minimum": 0,
      "type": "integer"
    },
    "gridY": {
      "minimum": 0,
      "type": "integer"
    },
    "weather": {
      "required": [
        "values"
      ],
      "type": "object",
      "properties": {
        "values": {
          "type": "array",
          "items": {
            "required": [
              "validTime",
              "value"
            ],
            "type": "object",
            "properties": {
              "validTime": {
                "$ref": "#/components/schemas/ISO8601Interval"
              },
              "value": {
                "type": "array",
                "items": {
                  "required": [
                    "coverage",
                    "weather",
                    "intensity",
                    "visibility",
                    "attributes"
                  ],
                  "type": "object",
                  "properties": {
                    "coverage": {
                      "enum": [
                        "areas",
                        "brief",
                        "chance",
                        "definite",
                        "few",
                        "frequent",
                        "intermittent",
                        "isolated",
                        "likely",
                        "numerous",
                        "occasional",
                        "patchy",
                        "periods",
                        "scattered",
                        "slight_chance",
                        "widespread"
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "weather": {
                      "enum": [
                        "blowing_dust",
                        "blowing_sand",
                        "blowing_snow",
                        "drizzle",
                        "fog",
                        "freezing_fog",
                        "freezing_drizzle",
                        "freezing_rain",
                        "freezing_spray",
                        "frost",
                        "hail",
                        "haze",
                        "ice_crystals",
                        "ice_fog",
                        "rain",
                        "rain_showers",
                        "sleet",
                        "smoke",
                        "snow",
                        "snow_showers",
                        "thunderstorms",
                        "volcanic_ash",
                        "water_spouts"
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "intensity": {
                      "enum": [
                        "very_light",
                        "light",
                        "moderate",
                        "heavy"
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "visibility": {
                      "$ref": "#/components/schemas/QuantitativeValue"
                    },
                    "attributes": {
                      "type": "array",
                      "items": {
                        "enum": [
                          "damaging_wind",
                          "dry_thunderstorms",
                          "flooding",
                          "gusty_wind",
                          "heavy_rain",
                          "large_hail",
                          "small_hail",
                          "tornadoes"
                        ],
                        "type": "string"
                      }
                    }
                  },
                  "description": "A value object representing expected weather phenomena.",
                  "additionalProperties": false
                }
              }
            },
            "additionalProperties": false
          }
        }
      }
    },
    "hazards": {
      "required": [
        "values"
      ],
      "type": "object",
      "properties": {
        "values": {
          "type": "array",
          "items": {
            "required": [
              "validTime",
              "value"
            ],
            "type": "object",
            "properties": {
              "validTime": {
                "$ref": "#/components/schemas/ISO8601Interval"
              },
              "value": {
                "type": "array",
                "items": {
                  "required": [
                    "phenomenon",
                    "significance",
                    "event_number"
                  ],
                  "type": "object",
                  "properties": {
                    "phenomenon": {
                      "pattern": "^\\w{2}$",
                      "type": "string",
                      "description": "Hazard code. This value will correspond to a P-VTEC phenomenon code as defined in NWS Directive 10-1703.\n"
                    },
                    "significance": {
                      "pattern": "^\\w$",
                      "type": "string",
                      "description": "Significance code. This value will correspond to a P-VTEC significance code as defined in NWS Directive 10-1703.\nThis will most frequently be \"A\" for a watch or \"Y\" for an advisory.\n"
                    },
                    "event_number": {
                      "type": [
                        "integer",
                        "null"
                      ],
                      "description": "Event number. If this hazard refers to a national or regional center product (such as a Storm Prediction Center convective watch), this value will be the sequence number of that product.\n"
                    }
                  },
                  "description": "A value object representing an expected hazard."
                }
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "additionalProperties": {
    "$ref": "#/components/schemas/GridpointQuantitativeValueLayer"
  }
}