Hugh Newbury wrote:

Are there particular names (eg drizzle, heavy rain, etc) attached to rain
rates? I had a look in the FAQs, but there was only something about drizzle.
Is there a list somewhere with mm/hr against each?

Thanks for any help.

Hugh


Rain falling from layered clouds is defined as follows:

Slight: Less than 0.5 mm/hr
Moderate: 0.5 to 4.0 mm/hr
Heavy: More than 4.0 mm/hr

For rain falling from convective clouds (showers) the following are the
definitions:

Slight: Less than 2.0 mm/hr
Moderate: 2.0 to 10.0 mm/hr
Heavy: 10.0 to 50.0 mm/hr
Violent: More than 50 mm/hr

Intensities of snowfall, assuming that it is accumulating on the ground with no
melting, a

Slight: Less than 0.5 cm/hr accumulation
Moderate: 0.5 to 4.0 cm/hr accumulation
Heavy: More than 4.0 cm/hr accumulation

--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.