I have been downloading radar data with an application that I wrote for the last ten years. It downloads 5 minute tiled images and stitches them together into one composite image and puts them into an image grid. I never thought that the Met Office would continue to supply the tiles as they have done from the Datapoint service for so long but am gratefully that they have. I decided to add an extra viewer to the app in the last few days something I should have done a long time ago, it displays in a grid hourly accumulations rather than just 5 minute intensities animations. I’m still not happy with the colour scale – I can never seem to find the right colours – but I believe it gives a slightly different perspective into the rainfall data you get from intensities alone. Apologies for the large size of the image grid below, I’ve stepped up the quality so that you can clearly read the legend.
If anything the areal rainfall extent and rainfall intensities this afternoon have pepped up, the story in the forecasts yesterday was by afternoon this rain band would have fragmented into showers. I have read that the GFS model did pretty well in its forecast of the rainfall from this system, that might be true of the GFS model but not of the UKMO model, not that we’re ever allowed to see it!