So far I haven't really had to deal with the problem. If the forecast looks like rain for the night I always try to find someplace with an overhang and camp out there for the night under the overhang and I wake up high and dry in the morning. Yeah, I'm road biking not mountain biking which would be a totally different situation. You can always find someplace that has an overhang if you just look for it. You learn to go to the campsite late, like after most people have went to bed for the night, 11PM and get out early in the morning before most have gotten on the road to head for work...granted in the morning it doesn't really make any difference since you are leaving the campsite.

Your biggest problem as I have always understood it isn't the rain with the El Nino, it's the mudslides. Watch out and be safe.

I would have to say for me I generally always play chicken with the rain since during the summer months when I'm going on long haul trips the rain is generally pretty isolated and not all day/night long events, generally just an hour or two if that long. I generally always try to sit out the rain. Like I said above thus far I haven't had to deal with waking up and hitting the open road when its raining. Around home the rain is generally light rain/mist/drizzle so I don't mind going out in it...granted I know I will be back at home for the night where I can get everything dried out before the next morning. Since I haven't had to deal with it yet while on a trip I can say for sure what I would do. I think I probably wait until it lets up a bit, figuring it is pouring and not just a light rain/drizzle kind of event. Wait until it lets up and quickly pack up and hopefully get into town and sit it out surfing the web/watching radar online to find out when its going to be over. That is generally what I do when it starts raining during the day so the only new thing would be the addition of still being at the campsite when the rain is falling. I would make sure I have everything organized inside the tent so I could get out and get torn down as fast as possible, hopefully in a matter or 5 minutes or less. I think it would depend on how long the rain was going to last as to just whether I would move on and when I would try to dry things out. That's a simple case of too many variables and things naturally change depending on the circumstances.