Each dot is a station with enough paired archive hours. Colour shows which of HRDPS 1 km, HRDPS 2.5 km, or HRRR had the highest gust Pearson r at that site (same rule as the per-station quality pages).
Use this as a regional hint for which model to trust on the map toolbar — not a guarantee for every day. Coloured outlines show each model’s GRIB grid extent. Click a dot for details, or open the single-station scatter plots.