Thanks to Brad.
The first image was shown during the 6pm news on TVOne on the 19th of September at approximately 6.25pm. Note behind the weatherman’s head, evidence of a pulse. In the second image are two pulses appearing to emanate from the Canterbury Radar. This image was copied off the MetService website from the rain radar page on the morning of the 19th.
In previous posts on this website, Nigel Gray has commented on their possible relevance.