GOOD MORNING MODEL WATCHERS. HERE IS MY LATEST ANALYSIS FROM THE OUTPUTS OF THE WEATHER COMPUTER PREDICTION MODELS FOR TWO WEEKS FROM TODAY MONDAY JUNE 16TH 2014.
THE CURRENT GENERAL SITUATION. A large anticyclone covers the NW of Britain with a light Northerly drift over most parts of the UK.
GFS The GFS Ensembles today shows the High pressure which will of dominated the UK through this week and next weekend showing signs of releasing some grip over the UK early next week as it moves away West further out into the Atlantic at the hands of a showery Northerly phase of winds. However, there are signs shown that could bring the High pressure back in towards the South of the UK later though a weak signal for Atlantic Westerlies to develop especially for the North are also visible.
UKMO UKMO closes this morning's run with High pressure to the West of the UK next weekend weakening slowly but maintaining a ridge across the South next Sunday with continuing fine and dry weather here with just the risk of a shower across a slack pressure gradient over the North next Sunday.
GEM The GEM operational looks very similar to UKMO at Day 6 moving on to develop a trough to the North of the UK which is pulled South across all areas next week with a much greater risk of showers and cooler conditions for all for a time at least.
NAVGEM NAVGEM is broadly simular in this theme developing a showery Low across Southern Britain in a week's time with some heavy, thundery and slow moving showers likely in temperatures close to average.
ECM The ECM operational today also continues the trend of a somewhat declining High pressure area later in it's run. This week and probably much of the weekend too continues largely dry and benign with variable cloud cover but from the weekend as pressure leaks away somewhat a showery Northerly flow may invade the UK early next week with this trough sinking South towards the end of the run with pressure building to the North. Day 10 looks likely that a lot of dry weather would lie over the North while Southern areas develop an unstable Easterly flow with the risk of some rain.
MY THOUGHTS High pressure is beginning to show signs of declining somewhat as we move into next week with the most common theme being for it to pull far enough West over the Atlantic to allow a more unstable and potentially showery theme to develop over the UK early next week. There is then indecision between the models on where we go from there with the GFS ensembles and the GEM operational leaving High pressure never overly far from the UK, still to the West or SW while ECM and the NAVEGEM operationals look like airing towards something more noticeably unstable into next week. Despite all this though the short term is well agreed upon by all output and as a result this week should see a lot of dry and bright weather with just isolated afternoon showers over the hills possible and while never overly hot through the whole term of the outputs this morning things will feel pleasantly warm and occasionally humid at times especially in the South and West.
Originally Posted by: Hungry Tiger