New Zealand Local Weather Forum
Weather Discussion => Forecasts and Warnings => Topic started by: JennyLeez on February 23, 2023, 10:10:18 PM
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Sixty-four homes in Tairāwhiti were being evacuated on Thursday ahead of a fresh orange heavy rain warning issued for Gisborne and Coromandel Peninsula.
MetService had already issued an orange heavy rain warning for Hawke’s Bay saying it has “grave concerns” given the already vulnerable terrain.
A heavy rain watch remained in place for Auckland, northern Waikato, western Bay of Plenty and Wairarapa including the Tararua District.
MetService said at 9pm that the orange warning for Gisborne was for 29 hours from 9pm Thursday to 2am Saturday, with 80mm to 130mm of rain expected. Rates could peak between 10mm and 25mm an hour, “especially in thunderstorms”.
Hawke’s Bay residents were being advised to have an evacuation plan in place and to check for any risks around their homes as more heavy rain is forecast for the already cyclone-sodden region.
From Thursday at 9pm until 10am on Saturday, areas in the region can expect 150mm to 200mm of rain to fall.
The heaviest falls are likely from 3pm Friday, with peak rates of 20 to 30mm an hour possible.
“While we’re not expecting the rainfall to cause the same level of flooding as Cyclone Gabrielle, we do encourage residents to take steps to minimise the risks to their property and ensure they have an evacuation plan in place if required,” said Hawke’s Bay Regional Council group manager asset management Chris Dolley in a statement.
Unison said there were still 3230 people without power in Hawke’s Bay, mostly in outlying rural areas. The lines company urged households to conserve electricity and be prepared for further outages.
Source: stuff.co.nz (https://www.stuff.co.nz/national/131309656/more-rain-threatens-auckland-hawkes-bay-tairwhiti-coromandel)
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Residents in cyclone-battered areas are being encouraged to leave, with more wild weather including heavy rain expected today. Authorities say they are also planning for the precautionary evacuation this afternoon of the severely hit Esk Valley area in Hawke’s Bay.
North Island regions still battered and soaked by Cyclone Gabrielle are facing fresh warnings of heavy rain, prompting concerns for vulnerable communities which are yet to recover.
Niwa says Auckland and Coromandel can expect thunderstorms and “narrow corridors of intense rain with the possibility for some flooding”.
And with more deluges also expected for hard-hit Gisborne and Hawke’s Bay from today, authorities aren’t taking any chances - warning residents to prepare for all eventualities.
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From the Metservice:
Heavy Rain Warning - Orange
Impact: Heavy rain may cause streams and rivers to rise rapidly. Surface flooding and slips are also possible and driving conditions may be hazardous.
Area: Coromandel Peninsula
Period: 17hrs from 9am Fri, 24 Feb - 2am Sat, 25 Feb
Forecast: Expect 80 to 110 mm of rain, but localised areas could see up to 180 mm. Peak rates of 10 to 25 mm/h from this afternoon, but localised downpours of 25 to 40 mm/h (or possibly more) in thunderstorms. Note, a Severe Thunderstorm Watch is also in force for this area.
Area: Gisborne
Period: 19hrs from 9am Fri, 24 Feb - 4am Sat, 25 Feb
Forecast: Expect a further 60 to 90 mm of rain on top of what has already fallen, with peak rates of rates of 5 to 10 mm/h. However, localised areas could receive 100 to 150 mm of rain (or possibly more), with localised downpours of 25 to 40 mm/h and thunderstorms possible from this afternoon.
Area: Hawke's Bay
Period: 25hrs from 9am Fri, 24 Feb - 10am Sat, 25 Feb
Forecast: Expect 100 to 150 mm of rain about the ranges (or possibly more), and also away from the ranges north of Hastings (this includes the Esk Valley area and the Wairoa District). Elsewhere, expect a further 60 to 90 mm. These rainfall amounts are in addition to what has already fallen. The heaviest falls are likely Saturday morning, when peak rates of 25 to 40 mm/h are expected, with thunderstorms possible.
Heavy Rain Watch
Area: Auckland including Great Barrier Island
Period: 21hrs from 9am Fri, 24 Feb - 6am Sat, 25 Feb
Forecast: Periods of heavy rain, with thunderstorms and downpours possible, especially from afternoon. Rainfall amounts may reach warning criteria. Note, a Severe Thunderstorm Watch is also in force for this area.
Area: Waikato north of Hamilton and Bay of Plenty about and west of Te Puke
Period: 15hrs from 3pm Fri, 24 Feb - 6am Sat, 25 Feb
Forecast: Periods of heavy rain, with thunderstorms and downpours possible. Rainfall amounts may approach warning criteria. Note, a Severe Thunderstorm Watch is also in force for parts of this area.
Area: The eastern ranges of Taihape
Period: 12hrs from 10pm Fri, 24 Feb - 10am Sat, 25 Feb
Forecast: Periods of heavy rain. Rainfall amounts may reach warning criteria.
Area: Wairarapa (including the Tararua District)
Period: 12hrs from 9am - 9pm Sat, 25 Feb
Forecast: Periods of heavy rain. Thunderstorms and downpours possible about the Tararua District. Rainfall amounts may approach warning criteria, mainly about the ranges in the west and about the eastern hills.
Area: Eastern Marlborough south of Ward
Period: 12hrs from 3pm Sat, 25 Feb - 3am Sun, 26 Feb
Forecast: Periods of heavy rain. Rainfall amounts may approach warning criteria.
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