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As regions across New Zealand continue to recover from Cyclone Gabrielle, Gisborne, Bay of Plenty and Coromandel residents can expect more heavy rain.
An orange heavy rain warning is in place for the Gisborne region from Tolaga Bay northwards, while heavy rain watches have been issued in the Bay of Plenty east of Kawearu and the Coromandel Peninsula by MetService.
Gisborne from Tolaga Bay northwards is expected to be hit with 60 to 100mm of heavy rain from 3am Monday through till 4am on Tuesday, with localised downpours of 25 to 40mm/h likely on Monday morning.
From 9am Monday through till 3am Tuesday, the Coromandel Peninsula is expected to have periods of heavy rain with possible thunderstorms and localised downpours.
The rainfall could approach warning criteria.
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Bay of Plenty east of Kawerau is forecast to see periods of heavy rain with possible thunderstorms and rainfall potentially reaching warning criteria, between 7am to 4pm Monday.
“Surface flooding is not an unreasonable expectation as another complex trough moves through the North Island,” MetService meteorologist Alex Holden said.
“It’s already really wet, so this will just be piling it on.”
Niwa
Heavy rain is set to hit Gisborne and Coromandel on Monday.
Tāmaki Makaurau and Northland are expected to have scattered rain on Monday with some heavy rain from late morning. Thunderstorms are also possible from the afternoon, MetService has forecasted.
Meteorologist John Law said the risk of more thunderstorms could produce heavy downpours.
Some rain is also expected in Napier, another region hit badly by Cyclone Gabrielle.
Manawautu to Wellington and Wairarapa can expect fine spells with isolated showers.
Thunderstorms are possible from Monday afternoon in Nelson, Marlborough and Buller.
MetService/Supplied
Two tropical cyclones are potentially developing.
Odd showers are expected in Ōtautahi, South Canterbury, Otago, Southland, Westland and Fiordland.
Meanwhile, two tropical cyclones are potentially developing in the South Pacific this week, but MetService says the risk them directly affecting New Zealand is relatively low.
Law said it’s not unusual at this time of year to have activity up in the tropics.
At this stage, a tropical low to the north of Fiji is expected to move west, towards Vanuatu during Monday and Tuesday, and there remains a high risk for it to become a tropical cyclone.
Fiji MetService is forecasting the tropical low will be upgraded to a Category 1 Tropical Cyclone about 12pm on Tuesday near Vanuatu.
The system is expected to remain close to Vanuatu during Tuesday and Wednesday.
Another tropical low in the Coral Sea is expected to move east and move across close to Vanuatu late next week, MetService said.
Law said MetService would be closely monitoring the weather system and the situation in the tropics .
He said there could be an increase in swells and some stronger winds.
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