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Drizzle
From SKYbrary Wiki
| Article Information | ||
|---|---|---|
| Category: | Weather | 
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| Content source: | SKYbrary | 
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| Content control: | EUROCONTROL | 
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| WX | |
|---|---|
| Tag(s) | Weather Phenomena |
(DZ)
Definition
Drizzle is the lightest form of precipitation, consisting of water droplets which are just large enough to acquire a readily measurable terminal velocity which is achieved at an average droplet diameter of 0.4mm.
Description
Drizzle is often generated by Stratus clouds and the presence of drizzle in a weather forecast indicates the likelihood of reduced visibility. Whilst droplets of this size are not a cause of significant airframe icing vigilance is appropriate if the surfaces of an aircraft are below freezing point.
In METARs and TAFs, drizzle is abbreviated to DZ.