It's a solidly white and thick bank of clouds that completely cover the sky...no blue at all, no grey...
just white rolls and waves of clouds piled up against each other and the air and temp have a bit to
do with it, too.  IDK how else to describe it..it just gets a certain look and there's a certain feel in
the air that years of seeing the sky and feeling the air before it snows teaches you.  Today, the sky
was right but the air and temperature weren't right for snow.