The latest is that Louise has indeed decided to bail out leaving the shop open in Julie's capable hands - no problems when you live in walking distance. She has been turned back by the Mountain Rescue on the A5074 Lyth Valley Road - usually the one that stays open in these conditions! Now I am playing Mr Sat Nav via the mobile directing her home on the minor roads. Fingers crossed!
Update: Made it! Two and a half hours of fun on waterlogged roads and it is still raining. Windermere (the lake) has made it up to road level now.