On TWO they're all available on the Chart viewer. Select GEFS and then the P you want to view:

http://www.theweatheroutlook.com/twodata/datmdlout.aspx

Interesting. It might be the different design but the ensembles for the London area on meteociel look different to me...This is roughly London 2m temps http://meteociel.fr/cartes_obs/gens_display.php?x=314&y=140&run=6&runpara=0&type=3&ext=1

Maybe I'm missing something but you can see the difference?

The TWO is showing 2m max and min temps for all of the runs. The Meteo plot looks like it just shows the average 2m temp forecast for each run, but I COULD be wrong.

The details are going to chop & change every run. Many times I've seen MBY being nailed on over successive runs for being one of the snow hotspots in an upcoming snow event, only for detail to change in the final 24 hours & get either little or none when the time comes.

Conversely, I've been on the verge of tantruming over looking like I'll miss out on a snow event according to successive runs, only for the 11th hour output to put me in the firing line. Even better, there's been more than one occasion when even the output has been showing MBY to miss the snow (or only have flurries) only for me to get a good covering.

To be honest, I'm wary that MBY is being forecast in advance to receive some snow.

Thanks

There are four data points plotted per day so I thought they were actuals at 6h intervals.

Good grief, what a scatter. So basically anything is possible from 19 Jan

The NMM model has trended milder on its 06Z run but still has a decent spell of snow for most away from the far SW and south coastal strip on Monday.

Exceptionally knife-edge stuff looking at the 850s!

That's correct - but on Meteociel you can select 'last four runs' as well as each of the last four.

It's got left behind on the last page but check the NMM models I just posted. Ultra marginal but Monday is looking very "interesting"...

beyond that though the 06Z NMM is a definite step away from prolonging the cold.

ARPEGE has also trended from white on the 00Z to wet on the 06Z (for my location).

UKMO chart for monday, frontal zones and estimated -5 850hpa isotherm are annotated.

Arpege 06Z 72h:

Not what most would want to see. For reference the equivalent 00Z 78h was here:

Fine margins, but heading the wrong way at the moment. Still time to change back though!

Even the high res models are struggling with the extent of the trough disruption.

NMM 06Z 114hrs:

Compare to the equivalent from the 00Z... 

Edit... sorry, posted wrong chart above. Fixed now

I think there is a lot to be optimistic about. 

This is my interpretation (a fax chart if you like of Monday at midday)

There will be snow on the leading edge of this occluded front as it moves into cold air, I expect it to undercut. 

but how much snow,nobody even the Met seem to know :(

I especially like the mild sector sitting over France!

I don't think even Sundays potential snow can be forecast accurately till late tomorrow and even then as always with snow it may change on Sunday.  As for Monday and beyond its all up in the air still (so to speak)

John Hammond was saying on the BBC1 weather at 13:30 today that the forecast is very uncertain for the next few days. There is no precedent for an Atlantic hurricane in January and whilst it is  still not caught up in the general circulation the models don't know how it is going to interact and modify the direction of the jet stream

They were pretty certain about a milder incursion by the weekend yesterday but now the MetO at least don't sound so sure