posted on Jan, 17 2013 @ 04:19 AM
Originally posted by da pickles
Just been watching the met sat images for the last 24 hrs and it looks like the warm front coming in from the west is getting pushed north and south
of the uk which is weird to watch. What does confuse me is that there is a strong weather front pushing northwards from the eastern Mediterranean ,
surely this would warm the weather that is then coming in from the east or is my grasp of the weather just been seriously flawed
Not 100% sure what you mean by this but let me try to explain the synoptics.
Currently we have a low pressure system off of the south west of Ireland, this is going to track NE and meet the cold air over the UK. This front
which will be rain behind it and for areas in the S and W will readily turn to snow. Accumulations locally of 25cm's is realistc, but widely
10cm's. Add the wind into this and you get drifting. 25cm's of snow that drifts can give impressive falls.
As it hits the cold air, it doenst have enough energy to displace the cold air so there is a possibility of it stalling, giving even more
accumulations, or even back tracking as the cold air pushes it back, maybe again giving even more than 25cm's.
There looks like we will have more fronts try to push in on sunday through monday, again the areas affected tomorrow and this weekend are in the
The N and NE could be faced with a different type of event where we get convective showers from the north sea. Places right on the coast me have
sleet but 10 mile sin land it will be snow but this type of precipitation is almost impossible to forecast and you need to do "now-casting".
Models are still predicting this cold snap to last til the end of January, the trends are pointing that way and thats what you need to watch.
Don't be surprised if your local weather forecasts and the Met O change their minds AGAIN on the trajectory of the snow and the areas impacted, snow
is very difficult to forecast...very difficult.