{ "openapi": "3.0.0", "info": { "title": "Wsdot Weather Information API", "version": "1.0.0", "description": "Wsdot Weather Information API - Washington State Department of Transportation APIs" }, "servers": [ { "url": "https://wsdot.wa.gov/traffic/api/WeatherInformation/WeatherInformationREST.svc", "description": "Production server" } ], "components": { "schemas": { "RoadwayLocation": { "type": "object", "properties": { "Description": { "type": "string", "nullable": true, "description": "Human-readable description of the roadway location, such as interchange names or cross streets." }, "Direction": { "type": "string", "nullable": true, "description": "Traffic direction designation: N, S, B, NB, or SB, indicating which side of the highway is affected." }, "Latitude": { "type": "number", "description": "Latitude of the roadway location in decimal degrees." }, "Longitude": { "type": "number", "description": "Longitude of the roadway location in decimal degrees." }, "MilePost": { "type": "number", "description": "Milepost marker along the highway corridor, with 0 indicating route terminus." }, "RoadName": { "type": "string", "nullable": true, "description": "Highway or route designation code, such as '005' for I-5 or '090' for I-90." } }, "required": [ "Description", "Direction", "Latitude", "Longitude", "MilePost", "RoadName" ], "description": "Roadway location information including route, milepost, coordinates, and direction." }, "FetchWeatherInformationByStationIdOutput": { "type": "object", "properties": { "BarometricPressure": { "type": "number", "nullable": true, "description": "Atmospheric pressure in millibars (not adjusted for elevation)." }, "Latitude": { "type": "number", "description": "Latitude of the weather station in decimal degrees." }, "Longitude": { "type": "number", "description": "Longitude of the weather station in decimal degrees." }, "PrecipitationInInches": { "type": "number", "nullable": true, "description": "Precipitation amount in inches." }, "ReadingTime": { "type": "string", "description": "UTC datetime when the weather reading was taken.", "format": "date-time" }, "RelativeHumidity": { "type": "number", "nullable": true, "description": "Relative humidity as a percentage (0-100)." }, "SkyCoverage": { "type": "string", "nullable": true, "description": "Sky coverage condition code." }, "StationID": { "type": "integer", "description": "Numeric ID of the weather station." }, "StationName": { "type": "string", "nullable": true, "description": "Display name of the weather station." }, "TemperatureInFahrenheit": { "type": "number", "nullable": true, "description": "Current air temperature in degrees Fahrenheit." }, "Visibility": { "type": "integer", "nullable": true, "description": "Average visibility distance in meters (computed every 3 minutes)." }, "WindDirection": { "type": "number", "nullable": true, "description": "Wind direction in degrees clockwise from north (0-359)." }, "WindDirectionCardinal": { "type": "string", "nullable": true, "description": "Wind direction in cardinal format (e.g., 'N', 'S', 'WSW')." }, "WindGustSpeedInMPH": { "type": "number", "nullable": true, "description": "Maximum wind gust speed in miles per hour." }, "WindSpeedInMPH": { "type": "number", "nullable": true, "description": "Average wind speed in miles per hour." } }, "required": [ "BarometricPressure", "Latitude", "Longitude", "PrecipitationInInches", "ReadingTime", "RelativeHumidity", "SkyCoverage", "StationID", "StationName", "TemperatureInFahrenheit", "Visibility", "WindDirection", "WindDirectionCardinal", "WindGustSpeedInMPH", "WindSpeedInMPH" ], "description": "Current atmospheric conditions from a WSDOT Road Weather Information System station, including temperature, humidity, wind, visibility, barometric pressure, and precipitation." } }, "parameters": {} }, "paths": { "/GetCurrentWeatherInformationAsJson": { "get": { "summary": "List current weather information for all stations.", "operationId": "fetchWeatherInformation", "tags": [ "weather-info" ], "x-codeSamples": [ { "lang": "JavaScript", "source": "import { fetchWeatherInformation } from 'ws-dottie/wsdot-weather-information/core';\n\nconst data = await fetchWeatherInformation({\n fetchMode: 'native',\n validate: true\n});\n\nconsole.log(data);" } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "schema": { "type": "array", "items": { "type": "object", "properties": { "BarometricPressure": { "type": "number", "nullable": true, "description": "Atmospheric pressure in millibars (not adjusted for elevation)." }, "Latitude": { "type": "number", "description": "Latitude of the weather station in decimal degrees." }, "Longitude": { "type": "number", "description": "Longitude of the weather station in decimal degrees." }, "PrecipitationInInches": { "type": "number", "nullable": true, "description": "Precipitation amount in inches." }, "ReadingTime": { "type": "string", "description": "UTC datetime when the weather reading was taken.", "format": "date-time" }, "RelativeHumidity": { "type": "number", "nullable": true, "description": "Relative humidity as a percentage (0-100)." }, "SkyCoverage": { "type": "string", "nullable": true, "description": "Sky coverage condition code." }, "StationID": { "type": "integer", "description": "Numeric ID of the weather station." }, "StationName": { "type": "string", "nullable": true, "description": "Display name of the weather station." }, "TemperatureInFahrenheit": { "type": "number", "nullable": true, "description": "Current air temperature in degrees Fahrenheit." }, "Visibility": { "type": "integer", "nullable": true, "description": "Average visibility distance in meters (computed every 3 minutes)." }, "WindDirection": { "type": "number", "nullable": true, "description": "Wind direction in degrees clockwise from north (0-359)." }, "WindDirectionCardinal": { "type": "string", "nullable": true, "description": "Wind direction in cardinal format (e.g., 'N', 'S', 'WSW')." }, "WindGustSpeedInMPH": { "type": "number", "nullable": true, "description": "Maximum wind gust speed in miles per hour." }, "WindSpeedInMPH": { "type": "number", "nullable": true, "description": "Average wind speed in miles per hour." } }, "required": [ "BarometricPressure", "Latitude", "Longitude", "PrecipitationInInches", "ReadingTime", "RelativeHumidity", "SkyCoverage", "StationID", "StationName", "TemperatureInFahrenheit", "Visibility", "WindDirection", "WindDirectionCardinal", "WindGustSpeedInMPH", "WindSpeedInMPH" ], "description": "Current atmospheric conditions from a WSDOT Road Weather Information System station, including temperature, humidity, wind, visibility, barometric pressure, and precipitation." } }, "examples": { "sampleResponse": { "summary": "Sample response", "description": "Example of a successful response from the API (showing first item of 101 total)", "value": [ { "BarometricPressure": 957.5, "Latitude": 47.4748, "Longitude": -122.2704, "PrecipitationInInches": null, "ReadingTime": "2025-11-15T17:30:00.000Z", "RelativeHumidity": 99, "SkyCoverage": "N/A", "StationID": 1909, "StationName": "S 144th St on SB I-5 at mp 155.32", "TemperatureInFahrenheit": 56.84, "Visibility": 1, "WindDirection": 200, "WindDirectionCardinal": "SSW", "WindGustSpeedInMPH": 0, "WindSpeedInMPH": 0 } ] } } } } } } } }, "/GetCurrentWeatherInformationByStationIDAsJson?StationID={StationID}": { "get": { "summary": "Get current weather information for a specific station by ID.", "operationId": "fetchWeatherInformationByStationId", "tags": [ "weather-info" ], "x-codeSamples": [ { "lang": "JavaScript", "source": "import { fetchWeatherInformationByStationId } from 'ws-dottie/wsdot-weather-information/core';\n\nconst data = await fetchWeatherInformationByStationId({\n params: {\n \"StationID\": 1909\n },\n fetchMode: 'native',\n validate: true\n});\n\nconsole.log(data);" } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/FetchWeatherInformationByStationIdOutput" }, "examples": { "sampleResponse": { "summary": "Sample response", "description": "Example of a successful response from the API", "value": { "BarometricPressure": 957.5, "Latitude": 47.4748, "Longitude": -122.2704, "PrecipitationInInches": null, "ReadingTime": "2025-11-15T17:30:00.000Z", "RelativeHumidity": 99, "SkyCoverage": "N/A", "StationID": 1909, "StationName": "S 144th St on SB I-5 at mp 155.32", "TemperatureInFahrenheit": 56.84, "Visibility": 1, "WindDirection": 200, "WindDirectionCardinal": "SSW", "WindGustSpeedInMPH": 0, "WindSpeedInMPH": 0 } } } } } } } } }, "/GetCurrentWeatherForStationsAsJson?StationList={StationList}": { "get": { "summary": "Get current weather information for multiple specified stations.", "operationId": "fetchCurrentWeatherForStations", "tags": [ "weather-info" ], "x-codeSamples": [ { "lang": "JavaScript", "source": "import { fetchCurrentWeatherForStations } from 'ws-dottie/wsdot-weather-information/core';\n\nconst data = await fetchCurrentWeatherForStations({\n params: {\n \"StationList\": \"1909,1966,1970\"\n },\n fetchMode: 'native',\n validate: true\n});\n\nconsole.log(data);" } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "schema": { "type": "array", "items": { "type": "object", "properties": { "BarometricPressure": { "type": "number", "nullable": true, "description": "Atmospheric pressure in millibars (not adjusted for elevation)." }, "Latitude": { "type": "number", "description": "Latitude of the weather station in decimal degrees." }, "Longitude": { "type": "number", "description": "Longitude of the weather station in decimal degrees." }, "PrecipitationInInches": { "type": "number", "nullable": true, "description": "Precipitation amount in inches." }, "ReadingTime": { "type": "string", "description": "UTC datetime when the weather reading was taken.", "format": "date-time" }, "RelativeHumidity": { "type": "number", "nullable": true, "description": "Relative humidity as a percentage (0-100)." }, "SkyCoverage": { "type": "string", "nullable": true, "description": "Sky coverage condition code." }, "StationID": { "type": "integer", "description": "Numeric ID of the weather station." }, "StationName": { "type": "string", "nullable": true, "description": "Display name of the weather station." }, "TemperatureInFahrenheit": { "type": "number", "nullable": true, "description": "Current air temperature in degrees Fahrenheit." }, "Visibility": { "type": "integer", "nullable": true, "description": "Average visibility distance in meters (computed every 3 minutes)." }, "WindDirection": { "type": "number", "nullable": true, "description": "Wind direction in degrees clockwise from north (0-359)." }, "WindDirectionCardinal": { "type": "string", "nullable": true, "description": "Wind direction in cardinal format (e.g., 'N', 'S', 'WSW')." }, "WindGustSpeedInMPH": { "type": "number", "nullable": true, "description": "Maximum wind gust speed in miles per hour." }, "WindSpeedInMPH": { "type": "number", "nullable": true, "description": "Average wind speed in miles per hour." } }, "required": [ "BarometricPressure", "Latitude", "Longitude", "PrecipitationInInches", "ReadingTime", "RelativeHumidity", "SkyCoverage", "StationID", "StationName", "TemperatureInFahrenheit", "Visibility", "WindDirection", "WindDirectionCardinal", "WindGustSpeedInMPH", "WindSpeedInMPH" ], "description": "Current atmospheric conditions from a WSDOT Road Weather Information System station, including temperature, humidity, wind, visibility, barometric pressure, and precipitation." } }, "examples": { "sampleResponse": { "summary": "Sample response", "description": "Example of a successful response from the API (showing first item of 3 total)", "value": [ { "BarometricPressure": 957.5, "Latitude": 47.4748, "Longitude": -122.2704, "PrecipitationInInches": null, "ReadingTime": "2025-11-15T17:30:00.000Z", "RelativeHumidity": 99, "SkyCoverage": "N/A", "StationID": 1909, "StationName": "S 144th St on SB I-5 at mp 155.32", "TemperatureInFahrenheit": 56.84, "Visibility": 1, "WindDirection": 200, "WindDirectionCardinal": "SSW", "WindGustSpeedInMPH": 0, "WindSpeedInMPH": 0 } ] } } } } } } } }, "/SearchWeatherInformationAsJson?StationID={StationID}&SearchStartTime={SearchStartTime}&SearchEndTime={SearchEndTime}": { "get": { "summary": "Search historical weather information for a station within a time range.", "operationId": "searchWeatherInformation", "tags": [ "weather-info" ], "x-codeSamples": [ { "lang": "JavaScript", "source": "import { searchWeatherInformation } from 'ws-dottie/wsdot-weather-information/core';\n\nconst data = await searchWeatherInformation({\n params: {\n \"StationID\": 1980,\n \"SearchStartTime\": \"2025-11-21T00:00:00.000Z\",\n \"SearchEndTime\": \"2025-11-22T23:59:59.000Z\"\n },\n fetchMode: 'native',\n validate: true\n});\n\nconsole.log(data);" } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "schema": { "type": "array", "items": { "type": "object", "properties": { "BarometricPressure": { "type": "number", "nullable": true, "description": "Atmospheric pressure in millibars (not adjusted for elevation)." }, "Latitude": { "type": "number", "description": "Latitude of the weather station in decimal degrees." }, "Longitude": { "type": "number", "description": "Longitude of the weather station in decimal degrees." }, "PrecipitationInInches": { "type": "number", "nullable": true, "description": "Precipitation amount in inches." }, "ReadingTime": { "type": "string", "description": "UTC datetime when the weather reading was taken.", "format": "date-time" }, "RelativeHumidity": { "type": "number", "nullable": true, "description": "Relative humidity as a percentage (0-100)." }, "SkyCoverage": { "type": "string", "nullable": true, "description": "Sky coverage condition code." }, "StationID": { "type": "integer", "description": "Numeric ID of the weather station." }, "StationName": { "type": "string", "nullable": true, "description": "Display name of the weather station." }, "TemperatureInFahrenheit": { "type": "number", "nullable": true, "description": "Current air temperature in degrees Fahrenheit." }, "Visibility": { "type": "integer", "nullable": true, "description": "Average visibility distance in meters (computed every 3 minutes)." }, "WindDirection": { "type": "number", "nullable": true, "description": "Wind direction in degrees clockwise from north (0-359)." }, "WindDirectionCardinal": { "type": "string", "nullable": true, "description": "Wind direction in cardinal format (e.g., 'N', 'S', 'WSW')." }, "WindGustSpeedInMPH": { "type": "number", "nullable": true, "description": "Maximum wind gust speed in miles per hour." }, "WindSpeedInMPH": { "type": "number", "nullable": true, "description": "Average wind speed in miles per hour." } }, "required": [ "BarometricPressure", "Latitude", "Longitude", "PrecipitationInInches", "ReadingTime", "RelativeHumidity", "SkyCoverage", "StationID", "StationName", "TemperatureInFahrenheit", "Visibility", "WindDirection", "WindDirectionCardinal", "WindGustSpeedInMPH", "WindSpeedInMPH" ], "description": "Current atmospheric conditions from a WSDOT Road Weather Information System station, including temperature, humidity, wind, visibility, barometric pressure, and precipitation." } }, "examples": { "sampleResponse": { "summary": "Sample response", "description": "Example of a successful response from the API (showing first item of 47 total)", "value": [ { "BarometricPressure": null, "Latitude": 47.078, "Longitude": -120.724, "PrecipitationInInches": null, "ReadingTime": "2025-11-14T18:30:00.000Z", "RelativeHumidity": 66, "SkyCoverage": "N/A", "StationID": 1980, "StationName": "Rocky Canyon on I-90 at mp 95.74", "TemperatureInFahrenheit": 54.14, "Visibility": 1, "WindDirection": 310, "WindDirectionCardinal": "NW", "WindGustSpeedInMPH": 9, "WindSpeedInMPH": 4 } ] } } } } } } } } }, "tags": [ { "name": "weather-info", "description": "Current atmospheric conditions from WSDOT Road Weather Information System stations.", "x-description": "Real-time temperature, humidity, wind conditions, visibility, barometric pressure, and precipitation data for transportation operations.", "x-cacheStrategy": "FREQUENT", "x-useCases": [ "Assess road weather conditions for transportation management.", "Monitor atmospheric data for traveler safety decisions.", "Display current weather conditions at specific stations.", "Query historical weather data by station and time range." ], "x-updateFrequency": "5m" } ] }