Ride like hell. Like right through an ambush. You gotta keep moving. Don't stop and let the enemy zero in on ya....!
J/K.... well... maybe you can outrun the storm. Depends. Lightning will lite your ass up though when not even near the precipitation.
If you were in the open in the scenario that you described... get away from your bike and lie flat. And pray to your entity that the lightning doesn't find you out there...