You can start to see it on satellite in the deep Pacific
Edit: This is working better
https://weather.cod.edu/satrad/?parms=global-equatorial-01-24-1-100-1&checked=map&colorbar=undefined
Yeah, but I think those are made with remote sensing using water content to estimate the pack. So if it’s expecting 8:1 in an area on d1 and in d2 it’s a sobbing 3:1 it may think there’s more snow than there actually is.