METAR.oncloud.africa

Training/augmentation only. Not an official briefing source.

Data sources: AviationWeather (NOAA) + SAWS + ASECNA + NAMA + ACMAD refs | Last updated (UTC): 2026-06-06T02:50:12.943197Z Mode

Lapse Rate Tool

Training-only, simplified models. Always verify with official sources and POH/AFM.

Lower altitude (ft) Upper altitude (ft) Lower temp (°C) Upper temp (°C)

Typical ISA average lapse rate is about 2°C per 1000 ft in the troposphere.