Sorry, but I hoped that this thread would die the quiet death it deserved.
As somebody who has trained people in Water Safety for 10+ years, acts as a tester for water safety equipment and performed rescues in water the OP’s actions were reckless in the extreme. If you make an emotional reaction to an emergency situation you had better be very lucky. The floods recently always bring back memories of tragedies and lucky escapes that I have seen.
If you take the emotional responses to these situations, particularly those involving nearest and dearest, whatever species, we all know that we would think:
“I need to do something.”
However from bitter experience that thought, more often than not, involves the death of the person thinking it unless trained and resourced to do the job. You still need all the bravery and luck that you would to get in, but you would know how to change your actions as the situation develops. Very few people can sit by and watch events unfold without wanting to get involved. In cases such this a very small change in circumstances leads to a very different outcome.
So if you want to get in by all means do so, but think: think of the people that may then have to get you out of the situation if things go wrong; think of those you may leave behind if you do decide to get in; think what you can do with the least danger to yourself. Have a back up plan, make a call and be lucky.