On Jan 1, 4:32 pm, "Cumulus Glider Rescue"
wrote:
Several flashes and rumbles of thunder from a quite vicious looking cb some
mammatus and a few pellets of hail.

16.30

BK

Where? There were a few rumbles of thunder to the south here
at 1654 hrs, but no lightning seen.

Tudor Hughes, Warlingham, NE Surrey, 556ft.