This was taken with my phone in Ipswich, in a friend's garden. We were sitting in her conservatory when she commented on how fast these cumulus clouds were billowing up. Wish I'd had my camera with me.
The combine driver worked late last night to get this field cut before the rain came in the early morning.
A few fragments of cumulus humilis in the foreground, and on the horizon, cumulus congestus, coloured by the setting sun.