"Lawrence13" wrote in message
...
On Friday, 20 July 2012 08:39:27 UTC+1, wrote:
There's a lot of talk at present about summer arriving and the media
are
expecting a sunny heatwave. I urge some caution. A waving cold front is
expected to come wriggling down from the NW early next week. A more
substantial wave is forecast as a possibility from a notoriously difficult
place for models, just NE of the Azores. All it takes is for that to
develop
and we could have a lot of rain mid-week in some areas, especially
Midlands/northern England. And then when that relaxes away a cloudy
NE'ly.
Take a look at 00Z GFS today 20th for the possibilities, wall to wall
sunshine it is not. Flooding and heavy rain are still on the cards in
places.



Hey Will, Ikmow not many here will like this; why even Anthony Watts has
turned against him, but our mate Piers has also warned of heavy rain
possibly reaching the opening olympic ceremony in London with 80% certainty

From his website


= LONDON OLYMPIC GAMES WEATHER LATEST (17/18 July)
Piers spoke on LBC radio and posted on Accuweather 17th July: "...The
Olympic opening ceremony could be deluged we warned in our WeatherAction
forecast issued mid-June. Standard Meteorology is just NOT reliable 10 days
ahead whereas our WeatherAction long range forecasts for UK & Ireland this
month so far have accurately forecast the major deluges hitting England and
Wales to the day. Of course as I said on LBC radio 17th July the rain we
expect on 27th in England MIGHT just miss London but at this moment we
remain 80% confident of rain on the ceremony and continuing through the
Olympics period. See VIDEO and News links on WeatherAction site - http://
www.weatheraction.com/ displayarticle.asp?a=472&c= 5
===================================

It is on a knife edge I'd say. Upper trough comes over from the west and the
vorticity advection destabilises things. This encourages the slack pressure
and warm area over the continent to develop into a low pressure centre which
should then move north along the wind ahead of the upper trough. Long way
off yet for detail, but definitely a heavy thundery rain risk. Although that
is the "standard meteorology" view and takes no account of solar particles
LOL.

Will
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