It wouldn't do the machine any good at all. There have been a number of incidents on the North Sea in recent years. Don't think any have resulted directly in fatalities although one fatal accident was due to a lightning strike on a main rotor blade some time previously. The blade was damaged and eventually failed during a later flight.
My own experience did not include a lightning strike but the memorable and terrifying effects of turbulence, lightning flashes and torrential rain were all that I needed to make sure that I will never go near one again. At one point I had no control over the rate of climb/descent and just had to hang on, make sure I didn't overtorque or exceed the Nr limits and just watch the VSI in horror.
These days thankfully I have a weather radar to help see and avoid and not just the MK1 eyeball. It is recommended that you avoid CB's by at least 10nm but that all depends on how big they are.