Sources and credits
Hindcast is built on open weather data. Thank you to everyone who makes it available.
| What | Source | License |
|---|---|---|
| Forecasts, air quality, place search | Open-Meteo.com | CC BY 4.0 |
| ECMWF IFS and AIFS models, IFS analysis | European Centre for Medium-Range Weather Forecasts, via Open-Meteo | CC BY 4.0 |
| GFS, HRRR, NBM, GEFS | NOAA National Centers for Environmental Prediction, via Open-Meteo | US public domain |
| ICON | Deutscher Wetterdienst, via Open-Meteo | CC BY 4.0 |
| GEM | Environment and Climate Change Canada, via Open-Meteo | Open Government Licence – Canada |
| Radar (MRMS reflectivity and precipitation type) | NOAA National Severe Storms Laboratory, via the NOAA Open Data Dissemination program | US public domain |
| Weather alerts and US station observations | NOAA National Weather Service (api.weather.gov) | US public domain |
| Airport weather reports (METAR) worldwide | NOAA Aviation Weather Center (aviationweather.gov) | US public domain |
| Forecast maps (GFS 0.25°: temperature, rain rate, wind, Pro) | NOAA National Centers for Environmental Prediction, via the NOAA Open Data Dissemination program (AWS) | US public domain |
| Satellite imagery (GOES-East and GOES-West GeoColor, Pro) | NASA Global Imagery Browse Services (GIBS), part of NASA’s Earth Observing System Data and Information System (EOSDIS); GOES satellites operated by NOAA | NASA open data, US public domain |
| Climate normals, records and frost dates (Pro, US) | NOAA National Centers for Environmental Information: U.S. Climate Normals 1991–2020 and GHCN-Daily (US stations) | US public domain |
| US outline map | US Census Bureau cartographic boundaries, via us-atlas | Public domain |
| Fonts | IBM Plex Mono, Schibsted Grotesk | SIL Open Font License 1.1 |
NOAA, NASA and ECMWF do not endorse Hindcast. Data has been processed: blended, aggregated to daily values and re-rendered as map tiles.