David wrote:How often do thunderstorms occur in the Christchurch/Canterbury area? Here there have been 7 days since 1 July.
Looks like you get a few good storms when I see the NZTS site.
Hardly any, sadly now

They are a thing of the past now here in Canterbury, due to global warming trends.
I don't think a thunderstorm will ever occur in Canterbury for a long while yet,especially as a La nina is looming.
This coming summer, it looks very unlikely with lots of drizzly easterlies, low cloud and high surface pressures.
All the thunderstorms on the NZTS site were rare events that do not occur these days, so it was a real treasure to record those events, when they happened.
If you do want a thunderstorm to happen in Canterbury, the best thing to do is go away or not be here.
There have been
many,
many,
many times that I have waited in anticipation of a good thunderstorm to happen...but then nothing , but when I have been away in Wellington, overseas, wherever, people have rang, text me and said "Hey, We're having a thunderstorm here in Christchurch" It's happened so many times it's unbelievable
I have thinking of renaming my organisation as the NZNTS - but I'll wait and see.
JohnGaul
NZTS