The Civil Defence Emergency Management Group also advised people to postpone travel and outdoor activities as there might be “slips, fallen trees and difficult driving conditions”.
“We’re aware of power outages elsewhere around the motu/country, so if you can, double check your emergency supplies and grab bag, change your devices and keep a torch handy.
“If you’re able to today, before the rain settles in, check and clear your drains and gutters in preparation.”
Anyone in immediate danger should call 111.
In the Coromandel, severe weather was expected to impact to hit the region with forecasts showing 200–250mm of rain, especially over higher ground, with peak rates of 15–25mm/hour on Wednesday.
There was a low risk of localised downpours up to 25–40mm/hour, and a moderate chance the warning could be upgraded to red.
Flooding, slips, rapidly rising streams and rivers, and difficult driving conditions were also possible for the Coromandel area.
Thames-Coromandel District Council warned people to clear drains and gutters, secure loose items outdoors, avoid low-lying areas, and drive cautiously and to never drive through floodwater.
Council also asked people not to play or walk in floodwater, as it could be contaminated and hide hazards