I unplugged the computer and the external modem, and left them that way until I was sure the storm had packed up and moved far away.
We were lucky; lightning struck several houses, exploded, burned, and felled trees (some on houses), and killed three horses taking shelter under a tree. 6000 people are still without power, whereas our lights didn't even blink.
GlobalBC says there were more than 200 lightning strikes over the region. Their report with photos and videos includes an astounding photo of a double lighting strike over downtown Vancouver, with a double rainbow, and a reflection in the Kits pool in the same shot!
On CBC, there's another freak lightning strike, this one making a figure 8 in the sky.
I have no photos; it was raining too hard to see anything but the flashes of lightning.