Charts from Meteo France's 0.01 degree Arome model should soon be available on TWO. I think these will be the highest resolution data sets freely available on a UK based web site, the horizontal resolution is approximately 2km! 

The key benefit of very high resolution NWP IMO is to more accurately model precipitation, especially convective activity. The downside (from an IT perspective) is the need to shift and process much bigger data files. Therefore, for launch I'll probably only make precipitation data available.  

The sample chart below is from today's Arome 6z 0.01 degree model run. 

Thanks Brian  I'm sure I speak for many on here when I say we'd all appreciate more detailed modelling of convective precipitation 

Echo that! 

See what you did there - very clever 😎

Thanks Brian - much appreciated 

Starting to make Arome 0.01 degree data available here:

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

I think this is the highest resolution data (1.3km horizontal grid)* available either freely or via subscription in the UK with the exception of the MetO in house stuff. It should be particularly useful for tracking the development of convective features. 

*if anyone knows differently please say

Not changing my other Two Manual measures yet.. Any body know if nearly infinite measures available..

On the Probability Of Precipitation, How many runs on ensembles to achieve this reading....

I've been using Arome for a while now, these are my observations on its performance.

1) Initializes poorly. I don't quite understand whether it uses GFS data like some WRF models do, but it tends to massively overestimate the precipitation for the immediate short term (generally under 8 hours ahead), the problem goes away for later hours but its bizarre; no other model does this quite to this extent. The WRF does, but it 'normalizes' far quicker.

2) Handles frontal precipitation very well, in particular its very good for telling whether a band of precip will fall as rain or snow. Arguably better even than the WRF on this. 

3) Underestimates shower activity, think this is a fairly major issue. Showers are not handled all that well by the AROME.

Initialises off Arpege I think. Why on earth would it run off GFS?

WRT showers it seems to have done very well today but I'll keep an eye on it.

CAPE and h/m/l cloud cover charts are now available.

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

Sorry, the data is correct but there's an error in my script which is stopping the scale bar from being plotted. I'll fix shortly.