KEY POINTS:
Didymo has made its way into the Haast River on the West Coast.
Biosecurity New Zealand said there should be no significant changes for river users but those informed of the find included the Narnia film crew.
Didymo has made its way into the Haast River on the West Coast.
Biosecurity New Zealand said there should be no significant changes for river users but those informed of the find included the Narnia film crew.
Electrical storms are set to hit at evening rush as Auckland braces for 16 hours of rain.