On 21/04/18 23:23, N_Cook wrote:
So about 28mm in 55 minutes with a peak rate of 200mm/hr

Reminded of some crap we were taught on the assistants' course in 1962,
one of several piles dumped on us. We were told never to report a
violent shower as we never get that in this country, it only occurs in
the tropics. I thought it was nonsense at the time and have been proven
right on many occasions.

For the record, a violent shower is classified in my "notes for
scientific assistants" as having an intensity of "greater than about
50mm (2 inches) per hour". ["Greater than about"? what?]

Heaviest rain I witnessed brought visibility down to 200m, which is not
often seen in snow let alone rain. Don't know the rainfall rate (I was
sitting in my stalled car outside the tower waiting for it to ease off)
but the observer said the tipping-bucket-rain-gauge counter "sounded
like a machine gun". That was on a cold front.

--
Graham P Davis, Bracknell, Berks. Web-site: http://www.scarlet-jade.com/
"There is nothing more frustrating than playing hide and seek with a
deaf wolf." [Benton Fraser]
OS: Linux [openSUSE Tumbleweed]