Leading Cadet Training Basic Navigation Leading Cadet Training Cloud Formations Lecture 6

Cloud Formations Cirrus Cumulus Stratus Clouds are named according to both their shape and their height. There are three main types of cloud: Cirrus Cumulus Stratus

Cloud Formations Cirrus Cumulus Stratus Is a thread or hair-like cloud. Is a lumpy or heaped cloud. Is a featureless layer of cloud. The basic names of clouds may be combined, and the prefixes Cirro- Alto- or Strato- added to identify the height at which the cloud is occurring. Cirrus Cumulus Stratus

Cloud Formations signifies High Cloud signifies Medium Cloud signifies Low Cloud So as well as Cirrus, Cumulus and Stratus we also have – Cirrostratus and Cirrocumulus (High Stratus and Cumulus cloud) Altostratus and Altocumulus (Medium Stratus and Cumulus cloud) Stratocumulus (Low Cumulus cloud) Cirro- Alto- Strato-

Cloud Formations There is another word we must understand – Nimbus (Latin for rain) Cumulus may be combined with nimbus to give Cumulonimbus – a heaped rain cloud. And a layer cloud from which rain is falling is called Nimbostratus.

Our rain bearing clouds Our three cloud heights Cirro-stratus Alto-stratus Stratus (Layered) Cloud Formations Cirrus (Hair-like) High Cloud Cirro-cumulus (CIRRO) Our three basic clouds Our rain bearing clouds Our three cloud heights Cumulo-nimbus Medium Cloud (ALTO) Alto-cumulus Cumulus (Lumpy) Strato-cumulus Low Cloud (STRATO) Nimbo-stratus

Our three cloud heights Our rain bearing clouds Cloud Formations Our three cloud heights Our three basic clouds Our rain bearing clouds High Cloud (CIRRO) Cirro-cumulus Cirrus (Hair-like) Cirro-stratus Medium Cloud (ALTO) Alto-cumulus Alto-stratus Cumulo-nimbus Nimbo-stratus Strato-cumulus Stratus (Layered) Cumulus (Lumpy) Low Cloud (STRATO)

Cloud Formations Stratus - Featureless layer of cloud. Cirro-Stratus Stratus Alto-Stratus Nimbo-Stratus Cumulus - A lumpy or heaped cloud. Cumulus Alto-Cumulus Cirro-Cumulus Cumulo-Nimbus Cirrus – ‘hair’ and ‘thread’ like cloud Cirrus

Cloud Formations HIGH LEVEL Cirro-Stratus Cirrus Cirro-Cumulus MEDIUM Alto-Stratus Alto-Cumulus Cumulo-Nimbus MEDIUM LEVEL Nimbo-Stratus Stratus Cumulus LOW LEVEL

Check of Understanding Stratus is what type of cloud? Hair-like Featureless layer Thread-like Lumpy or heaped

Check of Understanding When alto is used as a prefix in a name of a type of cloud, that cloud may be found at: Any level Low level Medium level High level

Check of Understanding Which of these would be found only at high level? Strato-cumulus Alto-stratus Alto-cumulus Cirro-stratus

Check of Understanding Which type of cloud is lumpy or heaped? Nimbo Stratus Cumulus Cirrus

Check of Understanding Name this HIGH level cloud formation Cirrocumulus Cirrostratus Cirrus Altostratus

Check of Understanding Name this LOW level cloud formation Stratus Cumulus Nimbostratus Altocumulus

Check of Understanding Name this MEDIUM level cloud formation Altocumulus Stratus Nimbostratus Cirrus

Check of Understanding Name this HIGH level cloud formation Cirrostratus Cirrocumulus Cirrus Altostratus

Leading Cadet Training Basic Navigation Leading Cadet Training End of Presentation