cracked radiator / pipe?

[Jamie27]

Hi new here.

So I was out riding (fsr 450 07) and my skid plate hit a lump and my bike started blowing out smoke from the top front of bike. Near radiator.
When i got home the radiator was low on water so I topped it up and fired the bike up and let it get hot thinking steam would start coming out but it didn't. I can't see any cracks and nothing it leaking from anywhere.
Any ideas would It could of been?

Attached is poor quality pic of the amount of smoke coming out