Check your boat: if destroyed --> dying waterspout, if boat ok then incipient waterspout run away at maximum speedI've never seen clouds with the pointy bits below them. Any ideas?
No, This is mammatus (1:00 ) the whispy strands are virga.Mammatus clouds? Mammatus clouds
Does Stingo's pic look like a raft of dangling pendulous jubblies to you?Mammatus clouds? Mammatus clouds
Check my linkMammatus is rare & comes out of big angry likely thunderstorm clouds. Virga is much more common although short lived feature.
Can be liquid too.Dunno what the name is (easy enough to find out) but it's snow/ice crysrals falling from the cloud and sublimating on the way down. I've flown through them hundreds of times and it is snow, not liquid.