Could this be a sand storm?

[N316TS]

I think it’s the same thing discussed in this topic:

Sun "Bleed" Through Clouds / Orange Overcast

Correct me if I’m wrong, but the sim currently seems to model too much sunlight colour in heavy clouds. Under fully overcast skies at dawn or dusk, the clouds appear too orange, and the direction of the sun is too obvious. IMO, dense clouds should create a very dull grey or blue appearance to the skies below the cloud layer, especially with low visbility. [Microsoft Flight Simulator 2020-09-16 07_52_06 PM]