A thunderstorm watch is now in place for the Bay of Plenty and Rotorua regions.

A fast‑developing and unstable air mass is expected to bring showery, potentially severe thunderstorms across inland Bay of Plenty and Rotorua this afternoon and evening, with the risk window in effect from 3pm to 11pm today. .

The affected area includes inland Bay of Plenty, Rotorua, Taupō, Taihape, Taumarunui, Gisborne and Hawke’s Bay.

The MetService highlights a moderate risk of severe thunderstorms particularly for the Bay of Plenty and Rotorua districts, where localised downpours could be intense.

Forecasters warn that thunderstorms could bring rainfall rates of 25–40mm per hour, enough to cause surface flooding, flash flooding, and slips, especially in low‑lying or confined areas such as streams, rivers and narrow valleys.

MetService said a severe thunderstorm watch means conditions are favourable for thunderstorms to intensify quickly, and residents should keep a close eye on the weather and be prepared to take action if Severe Thunderstorm Warnings are issued.

Civil Defence is advising Bay of Plenty and Rotorua residents to revisit their storm readiness plans.

Tips include securing outdoor furniture, clearing drains and gutters, avoiding unnecessary travel during downpours, and knowing the safest evacuation routes if flooding occurs.