LookoutWX
Sunset and sunrise color-quality forecasts for the contiguous United States. Enter a
location and get a 0–100 score, a peak time, and a plain-language explanation of what's
driving the forecast — overhead clouds, the corridor toward the sun, air clarity, and the
anti-solar Belt of Venus.
This app requires JavaScript. The forecast data comes from NOAA's HRRR, GFS,
GEFS-Aerosols, GEFS-Ensemble, and RRFS-ensemble models plus live GOES-19 satellite
observations, decoded directly from source GRIB and NetCDF and combined with a
physics-grounded scoring transform (no blended forecast APIs).