Reading the air column over the region.
Copernicus CAMS, via Open-Meteo — particles, dust, gases, and the wind that carries them.
Contacting the model
Regional model from Copernicus CAMS via Open-Meteo. City numbers are the model cell under that city. The colour on the map is the shape of the plume, blended over a few hundred kilometres — not a roadside sensor, and not an official NEA or DOE warning. Red dots are NASA satellite fire detections. Wind streaks are sped up so the drift is visible. Check a local agency before you change plans.