thanks for all the messages folks.
we are all safe & sound . business was rained-out yesterday so we had to leave early before roads around us got closed. we cant get back today, but we assume its high & basically untouched. it will however take a week or so just to dry out and allow us to move cars parked on grass outside.
unfortunately, our dyno is at another shed which is almost certainly, completely submerged, so we expect that will be a write-off.
feel free to email as usual, as we have power etc at home and are working temporarily by remote control