uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old January 7th 10, 08:55 AM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Dec 2003
Posts: 2,744
Default I'm puzzled

I've just been to look at the std raingauge, expecting to find snow in
the top collector and nothing in the bottle. But I found nothing in the
top either, in spite of the 4.5cm of snow we had yesterday. What am I to
make of that? And how do I measure the ppn for the records?

Puzzled of Evershot (aka Hugh)

--

Hugh Newbury

www.evershot-weather.org

  #2   Report Post  
Old January 7th 10, 09:38 AM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Oct 2009
Posts: 11
Default I'm puzzled

On 7 Jan, 08:55, Hugh Newbury wrote:
I've just been to look at the std raingauge, expecting to find snow in
the top collector and nothing in the bottle. But I found nothing in the
top either, in spite of the 4.5cm of snow we had yesterday. What am I to
make of that? And how do I measure the ppn for the records?

Puzzled of Evershot (aka Hugh)

--

Hugh Newbury

www.evershot-weather.org


Is it possible that the snow has been blown out of the top by the
wind. If its any help my 7cm equates to 5.9mm of rain in Wanstead,
East London (32m). Meanwhile up the road at 70m 15cm fell! - the snow
was probably a lot lighter and therefore deeper...
  #3   Report Post  
Old January 7th 10, 10:05 AM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Jun 2007
Posts: 1,750
Default I'm puzzled

"Hugh Newbury" wrote in message
...
I've just been to look at the std raingauge, expecting to find snow
in the top collector and nothing in the bottle. But I found nothing
in the top either, in spite of the 4.5cm of snow we had yesterday.
What am I to make of that? And how do I measure the ppn for the
records?

Puzzled of Evershot (aka Hugh)



.... most odd, but I suppose it could have been scoured out when the
wind picked up, though if your snow was the same type as ours (rather
wet), I don't like that explanation - *something* should have
survived!

Try doing a sample (upturned funnel/hold by sliding a card underneath
if it won't stick to the inside of the funnel), then melting steadily
and find out what the water equivalent is. Not ideal, but you
obviously had some PPN, and I can't think of another way of getting to
a figure.

Here in West Moors, the PPN equivalent was 2.3 mm from the snow that
fell between 0940Z & 13Z, some thereafter, but nothing to add to
total. The snow *depth* was never more than 1 cm, and this morning,
though it is technically a snow cover (for climatological purposes),
hardly comes up to 0.5 cm. We must be one of the least 'snow-worthy'
parts of the entire British Isles!

Martin.


--
Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N Long: 01.88W
NGR: SU 082 023


  #4   Report Post  
Old January 7th 10, 11:04 AM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Dec 2003
Posts: 2,744
Default I'm puzzled

Martin Rowley wrote:

....

Try doing a sample (upturned funnel/hold by sliding a card underneath
if it won't stick to the inside of the funnel), then melting steadily
and find out what the water equivalent is. Not ideal, but you
obviously had some PPN, and I can't think of another way of getting to
a figure.

Here in West Moors, the PPN equivalent was 2.3 mm from the snow that
fell between 0940Z & 13Z, some thereafter, but nothing to add to
total. The snow *depth* was never more than 1 cm, and this morning,
though it is technically a snow cover (for climatological purposes),
hardly comes up to 0.5 cm. We must be one of the least 'snow-worthy'
parts of the entire British Isles!


Thanks for that, Martin. I've done it and it comes out at 3.6mm. That
was after 15min in a Pyrex bowl in the bottom oven of my AGA!

Whitehead's figure was useful as a check. His figure would have been
3.8mm if his depth had been 4.5mm like mine. So my 3.6mm is quite as
close as I can expect from my rough-and-ready method.

Thanks both.

Hugh

--

Hugh Newbury

www.evershot-weather.org
  #5   Report Post  
Old January 7th 10, 11:08 AM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Dec 2007
Posts: 342
Default I'm puzzled

Hugh Newbury wrote:
I've just been to look at the std raingauge, expecting to find snow in
the top collector and nothing in the bottle. But I found nothing in the
top either, in spite of the 4.5cm of snow we had yesterday. What am I to
make of that? And how do I measure the ppn for the records?

Puzzled of Evershot (aka Hugh)


Could a fox have eaten the snow ?


  #6   Report Post  
Old January 7th 10, 11:48 AM posted to uk.sci.weather
external usenet poster
 
First recorded activity by Weather-Banter: Dec 2003
Posts: 2,744
Default I'm puzzled

Joe Egginton wrote:
Hugh Newbury wrote:
I've just been to look at the std raingauge, expecting to find snow in
the top collector and nothing in the bottle. But I found nothing in
the top either, in spite of the 4.5cm of snow we had yesterday. What
am I to make of that? And how do I measure the ppn for the records?

Puzzled of Evershot (aka Hugh)


Could a fox have eaten the snow ?


Ho, ho! But there was enough about for him to eat without having to come
to my garden, find the raingauge, and take a mouthful. And the only
footprints are of birds and a cat.

But nice try, Joe!

Hugh

--

Hugh Newbury

www.evershot-weather.org


Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Puzzled.. Les Hemmings[_2_] uk.sci.weather (UK Weather) 5 January 2nd 12 10:14 PM
re puzzled Eric Belton uk.sci.weather (UK Weather) 4 April 8th 05 07:01 PM
Puzzled Eric Belton uk.sci.weather (UK Weather) 4 April 8th 05 06:54 PM
Observation SW Surrey 28/02/04 - puzzled Peter Thomas uk.sci.weather (UK Weather) 0 February 28th 04 08:28 PM


All times are GMT. The time now is 06:37 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 Weather Banter.
The comments are property of their posters.
 

About Us

"It's about Weather"

 

Copyright © 2017