Lecht Friday 31st October
With the
temperatures going down and snow falling on the mountains today,it
looks like winter has returned. During the day the snow showers will
turn to snow at lower levels. Snow showers will fall at low levels on friday and saturday with the temps staying below freezing in the valleys.
The northerly flow is a bit unpredictable exactly where the most snow
will hit,but on slopes exposed to the north will be favoured and
blizzard conditions will set in.
Even if enough snow fell during friday and saturday, the wind and
drifting looks likely to put paid to any hope of uplift this weekend,
unless glenshee or the lecht get enough by saturday and the higher FL
on sunday cure any road problems, but it is still looking wild on
sunday. Lots of if's and buts there.
The general trend of the outlook is cold or cool through the five day
summary forecast period, but there is something interesting going on
overnight Saturday into Sunday.
During the early hours of Sunday morning a warm sector is projected to
cross the mountains, occluding as it does. The exact timing of the
occlusion closing relative to where the front is overhead will
determine whether an area gets a period of very wet snow or a brief
period of rain away from the highest tops with the FL nudging above the
tops. As this happens the wind will swing SW'ly, and if this is blowing
wet snow down slope then it's potentially a good base building scenario.
