Approaching storm

We frequently see thunderstorms like this coming from the direction of Hampton in west. Like this one, they’re often only a few hundred metres wide but there’s no way of predicting where they’ll go. Sometimes they veer to the south over Narrow Neck and we don’t get a drop of rain while other times we get spared to the north (they must go over rustycrapp’s house).
Sometimes they just proceed straight up Nellies Glen to Katoomba and we get swamped!