Visibility III / V
The guy informed you about the approaching cell at half past 11. I then decided to go see what it would give. Dog along and in the driveway. 3 minutes came first hailstones and then a clear flash in the cloud (at 10.45pm), followed by 2 seconds and a decent burst followed by a rumble. An interesting sky when in the south direction was completely clear, the stars and the moon were just visible.