View Single Post
  #12   Report Post  
Old January 13th 10, 04:31 PM posted to uk.sci.weather
Adam Lea[_2_] Adam Lea[_2_] is offline
external usenet poster
 
First recorded activity by Weather-Banter: Nov 2007
Posts: 124
Default You Know it won't be snowing anymore

John Hall wrote:
In article ,
Graham writes:
"
This winter 17 days snow falling, 15 days complete cover at 0900 and
it's still there, max depth 12cm and it's only mid January. Likely to
be one of the more impressive winters of my league table (since
1979). Update daily on the website - click on snow

We've had 18 days snow falling, 18 days snow lying this winter so far
and have 6 cms lying now.
What I was trying to say is most places while having widespread snow
haven't had big falls of 15 cms or more!


Good grief! Some people are never satisfied. Individual falls of 15cm
over more are always going to be pretty rare. After all, even with dry
snow they required about 15mm of rain, which is a pretty wet day. With
wet snow, they need even more.


I have also noticed that at low levels it is very rare to observe an
accumulation of snow on top of a previous snowfall. It always seems to
be dry for at least a week after a moderate or heavy snowfall, and any
new snowfalls seem to occur after the previous lying snow has gone.

E.g. Snow fell in the SE before Christmas, then it stayed dry up until
Christmas, during which the lying snow turned to ice and made the
pavements awful to walk on.

Then I went up to Manchester over Christmas, got 8 inches of snow early
Jan then it was dry for a week and a half at which point it was time for
me to come back down south again.

This morning we had about 4 cm of new snow on top of the snow that fell
last week - this is the first snow settling on top of a previous
snowfall I have seen for at least 12 years.