Public Information Statement
Issued by NWS National HQ
Issued by NWS National HQ
491 NOUS41 KWBC 202130 PNSWSH Service Change Notice 24-55 National Weather Service Headquarters Silver Spring MD 530 PM EDT Mon May 20 2024 TO: Subscribers: -NOAA Weather Wire Service -Emergency Managers Weather Information Network -NOAAPort Other NWS Partners, Users and NWS Employees FROM: Ben Kyger Director, NCEP Central Operations (NCO) SUBJECT: Upgrade NWS API Website Forecast and Alerts Endpoints, Effective June 20th, 2024 On or about June 20th, 2024 at 1400 Universal Coordinated Time (UTC), the National Weather Service API Application Programming Interface (Website) will be upgraded to version 1.13. With this upgrade comes the following user-impactful changes: 1. Removal of the following parameters from the /gridpoint// , /forecast endpoint: updated, Relative Humidity, and Dewpoint Example: https://api.weather.gov/gridpoints/EAX/45,35/forecast A) Users who are using the updated parameter in their parsing of the data can use the updateTime field which shows the same time. B) The Relative Humidity and Dewpoint values are being removed as they are not scientifically accurate. These parameters will still be available on the /gridpoint/ / , and /gridpoint/ / , /forecast/hourly endpoints. 2. Requests to the alerts endpoint with the active and zone parameters will be redirected to the discrete endpoint. Example: https://api.weather.gov/alerts?active=true&zone=WYZ118 Will be redirected to: https://api.weather.gov/alerts/active/zone/WYZ118 Additionally, users are advised that the active parameter on the /alerts endpoint is deprecated and is subject to removal in a future update of the API. The /alerts/active endpoint should be used as the replacement. 3. Resolution of WFO Anchorage (AFC) errors on the points and gridpoints endpoints. Examples of endpoints that are being resolved: https://api.weather.gov/points/61.2175,-149.8583 This will now return values for forecast, forecastHourly, forecastGridData, and observations. https://api.weather.gov/gridpoints/AER/126,236/forecast and https://api.weather.gov/gridpoints/AER/126,236/forecast/hourly also will return data. For operational issues on the API Website, please contact: NCEP Central Operations Tech Control nco.ops@noaa.gov For technical questions regarding this notification, please contact: Anne Myckow Software Development Branch NWS Office of Dissemination sdb.support@noaa.gov National Service Change Notices are online at: https://www.weather.gov/notification