The most optimistic forecast Nils could offer today was a 1500'-2000' cloudbase interspersed with rain. No sign of improvement during the day. Therefore the decision has been taken to scrub early.
Early indications are promising for Saturday with cloudbase up to 4500' towards the Midlands and East Anglia, although we'll have brisk Westerly/North-Westerly winds to contend with. Sunday is likely to be similar but with an increased possibility of showers. Being British weather it could all change in 24 hours, so we'll see what's announced at the briefing on Saturday.