StratusA low, fairly uniform cloud layer that may produce drizzle.Low clouds0–2 kmLow clouds usually have bases below 2 km. Stratus forms a grey layer, stratocumulus makes broad rolls, and cumulus grows upward. Cumulonimbus can tower through much of the troposphere.Clouds of the troposphereHigh cloudsMiddle cloudsLow cloudsCoast & mountainsCirrusCirrocumulusCirrostratusAltocumulusAltostratusNimbostratusStratocumulusCumulusCumulonimbusStratusCloud classification · WMOTroposphere
