SUPERCOOLED WATER DROPLET is a water droplet still in liquid state at a temperature below 0ºC. They can be encountered above the freezing level at any time of year, in clouds, fog or precipitation.

Supercooled water droplet size is controlled by cloud type and the temperature => As temperature decreases the water droplets evaporate thus reducing their size.

• Large supercooled water droplets: Between 0°C and -20°C, found in Cumulus, Cumulonimbus and Nimbostratus clouds.
• Small supercooled water droplets:

- Upper levels of Cumulus, Cumulonimbus and Nimbostratus clouds: -20°C to -40°C
- Stratus, Stratocumulus, Altostratus and Altocumulus clouds: 0°C to -40°C

• Below -40°C only very tiny supercooled water droplets can exist.