"mittens" wrote in message
...
On Feb 1, 11:31 am, "David Mitchell" wrote:
Today is a classic example of what difference a modest rise in altitude
can
make.
Only 70m above sea level here and we have snow around 1 inch now. My son
has
just returned home from school in Driffield 6 miles South and 20 to 30m,
where it is slush at best. On the way back here the road rises to 130m and
is exposed with rather unpleasant conditions and blowing snow. The road at
Garrowby Hill (the highest point on the Wolds) to the West of here at
around
240m is closed.

--
David Mitchell, 70m amsl, Langtoft, East Riding of Yorkshire.

Wow! Elevation certainly has a striking impact when the temperature is
hovering around freezing. It must make forecasting snow totals a real
challenge.

Terrain has much less influence here, although the wind blowing off
Lake Ontario can lead to a microclimate of sorts within a few
kilometers of the shoreline.


It must do though, in marginal situations that would ocurr around the
last fall in spring and the first one in the fall.

Of course these would make a relatively small percentage of your
total snowfall events.
--
Col

Bolton, Lancashire
160m asl