Daily Archives: February 7, 2018

METARs: Routine Surface Observations RP101 3.1 METAR Codes aviationweather.gov  METAR issued every 55 minutes CB = cumulonimbus = thunder showers Ceiling is the lowest broken or overcast layer (few and scattered is not considered when determining the ceiling) cloud heights are reported in hundreds of feet above ground level (AGL) What are […]