Ninety Sky stands on public data and open work. Thank you to all of it.
Weather data
Where the forecast comes from
Radar (MRMS), the HRRR model and the National Blend of Models from NOAA, through the NOAA Open Data Dissemination program on AWS. Public domain.
Hourly forecasts and station observations from the National Weather Service (api.weather.gov). Public domain.
Point forecasts from four models by way of dynamical.org, used under the Creative Commons Attribution 4.0 license: NOAA HRRR, NOAA GFS and NOAA GEFS from dynamical.org, processed from NOAA Open Data Dissemination archives; and ECMWF AIFS Single forecast data processed by dynamical.org from ECMWF Open Data, also subject to the ECMWF Terms of Use. ECMWF does not endorse Ninety Sky.
Jev, a decision model by TypeSafe.
A special thank-you to dynamical.org. They turn NOAA and ECMWF forecast archives into clean, open datasets that anyone can use, and four of the models behind Ninety Sky reach us through their work.