Summary
Severe thunderstorm and heavy rain alerts are in effect for the top of New Zealand’s North Island as moist tropical air poses a flooding threat for the second consecutive weekend. Northland is under a severe thunderstorm watch from 10pm today until 1pm Sunday, with potential thunderstorms extending to Auckland, Coromandel Peninsula, Bay of Plenty, and Gisborne. Heavy rain is expected to continue for 28 hours, particularly north of Kaikohe, increasing the risk of flash flooding and poor driving conditions, while Aucklanders should prepare for overnight showers and possible thunderstorms.