What happened to the blue sky?

MrsW had to see the post - stroke psychologist this afternoon. As the sky was blue when we set off we decided to make a trip on to Snettisham beach afterwards. The sky was turning a bit grey when she came out from her appointment but it was light grey so we decided to carry on with our plan. By the time we got there, just 10 miles down the road, the sky had gone from light grey to dark grey accompanied by a wind that blew in one ear and straight out the other. 
We spent about half an hour walking the shoreline before we decided to head home. Not a sunny day at the seaside but it blew the cobwebs out and was probably as good for the equilibrium as a meeting with the psychologist, maybe ;-) On Friday MrsW is off to do some hydrotherapy at the hospital so maybe another trip to Snettisham? Although I have a feeling the sea might not be as warm as the hydrotherapy pool.