Dear oldflyguy! I am a true pilot, TRI, and I know very well how to read METAR, TAF, etc. For your information: 001 - 100 feet, 002 - 200 feet, ...., 015 - 1500 feet, ..., 034 - 3400 feet, etc. Vertical visibility for METAR, TAF in meters is not used. And 1100 is not a ceiling, it is horizontal visibility in meters. How to read and understand METAR, TAF correctly, I think you can use Google search.