Info
You can find all the information previously available on the archived versions of the Club Peñon's websites, here and here.
Some of that information is summarized below.
Weather
Forecasts from Meteoblue and Windguru.
Weather station at Holfuy.
Emergencies
Rescue team Lanza Tips: +52 722 357 4122
Helicopter evacuation Relampago: +52 729 107 5470
National Emergency Service: 911