wrote in message
ups.com...

Think I'll give him Neil's answer because it looks nice and logical
too. I remember similar Qs at school regarding impending heavy rainfall
and answering, "Dark, low clouds".


That's a good condition for snow, if the temperature is very close to
freezing. It won't help for class purposes, but locals will tell you that
you can smell it.

And what do u mean you can't tell whether what's falling is rain or snow?

I would take this to mean, if there's warmer air beneath the snow cloud such
that the snow melts as it falls, the product is rain. Unless there is
unmelted snow in the rainfall, you can't tell whether the cloud is dropping
rain or snow which is melting into rain.

As far as strictly looking at a cloud without using other senses, I'd like
to hear the answer.

-c