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"Mixed picture" means marked regional variations. The maximum change at any location in any of these classes is about 15%. Regional average changes, over summer and winter seasons, at a 48-hour lead time, are illustrated on the following plot (Warm colours mean more cloud in 47r247r3).
High cloud in particular tends to show more sharply defined edges in 47r3. The example below highlights far more areas of cloud cover >99% (i.e. >0.99), and similarly a much reduced spatial coverage of areas with 50-99% cover. It should be added that the non-opaque nature of high cloud makes defining full cover in a meaningful way rather difficult.
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This short range forecast example from Feb 2020 shows a marked reduction in gusts over northwest Europe, bringing them more into line with observations (although the leftmost panel here shows cycle 46r1 - it was the operational cycle at the time - a rerun of 47r2 would have shown much the same).
Sometimes, for other reasons, gusts (and mean winds) can be higher in 47r3 than in 47r2, even when pressure gradients are almost identical. Such cases are in the minority however, as illustrated in the single-time comparison below.
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Miscellaneous
Precipitation type products (in map and site-specific bar chart formats) are expected to show a reduced probability of precipitation falling at any given time, due to the change in spatial coverage of precipitation in cycle 47r3 noted above. The differences will be most apparent in summer, when convective rain, which exhibits the largest reduction in areal coverage, is more prevalent. Products in this class will thus have a "drier" look to them (although on bar charts a slight increase in higher rate probabilities is also expected). We may adjust the minimum rate thresholds used for these products at some future point, following more verification work; for the time being these thresholds remain the same.
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