No, its not snow.... It's happening right now

It's keeping that way from 23 minutes 🥶

JPEG - SOOC

With this poor light no idea how to "Fix" the hailstorm falling.

( suggestions gratefully received )

By 'fix' do you mean freeze the action?
That's a tough one with that low light condition. You are already at ISO 12800.

I would try any outdoor lighting available, or even try a flash. Can't think of many options.

Yes, "freeze the ice falling" was too much of a pun !!!

Thanks, nice idea.
Well,
if the main lamp would have worked I could have given it a try.

( It was out of order so I didn't even tough about that )