I commute 5 miles each way to work. I live in a climate where the weather can change from decent to torrential rain and thundering within 5 minutes (i.e. the first mile of my commute).
This happened on my commute earlier this week and I took shelter in an apartment parking lot that had covered parking. The "cover" was a sheet of aluminum. I can't say definitely whether this was a safe place to be during a thunderstorm or not.
My question is: do you have any solid safety advice on what to do if you are on your bike and a thunderstorm erupts?