- Stratiform or Stratus Clouds
- A cloud-type extending a long, low, gray layer with an almost uniform base with extensive coverage at different altitudes. There are three groups of stratiform clouds: high level (above 20,000 ft.), middle level (6,500-20,000 ft.), and low level (below 6,500 ft.). Both rime and glaze icing are observed in stratiform clouds depending upon temperature and liquid water content conditions. Stratiform clouds are characterized by moderate liquid water contents with a maximum value of 1.1g/m3 and as a result ice accumulation in these clouds is most frequently rime.