krotforlife.blogg.se - Heavy rain weather

Tropical Cyclone “Dovi” brings destructive winds to New Zealand after wreaking havoc across Vanuatu and New Caledonia Sunday, February 13, 2022.

Tropical Cyclone “Ruby” makes landfall in New Caledonia, heading toward New Zealand Tuesday, December 14, 2021.

These are reserved for the most significant weather events.ġ Rare Red Warning for heavy rain issued for New Zealand's West Coast – The WatchersĢ Marlborough hit by its largest-ever recorded flood, New Zealand – The Watchersģ Red Warning for Heavy Rain in Westland & Buller – MetService This is the fifth Red Warning MetService has issued since the color-coded system was introduced in 2019. lTrIVmJQWuĮxtreme rainfall will have a substantial impact on river flows in the western & northern South Island from Wednesday onwardįlooding, especially of smaller rivers, is distinctly possible.įlows in the Buller River will rise, but it's still too early to grasp the severity. This will be a high-impact weather event, with more rain likely for some beyond Thursday AM.įollow the advice of emergency officials.

Our in-house modelling illustrates the predicted rainfall & expected river flows (until early Thursday). "We have been working with West Coast Regional Council and Civil Defence to provide as much early warning of this impactful event as possible for locals and those who might be planning on traveling to the region for the long weekend," Ferris said. While the biggest impacts are likely within the Red Warning area bear in mind that surrounding regions will also need to be on alert as large amounts of rain falling near the peaks can cause rivers to rise in areas not under a Heavy Rain Warning, MetService meteorologists said. Orange Warnings for Heavy Rain are also in force for most neighboring regions. This brings the potential of rain rates around 40 mm/hr (1.6 inches per hour) which would amplify the speed at which impacts are observed. The persistent heavy rain is also accompanied by the risk of downpours in thunderstorms. Communities are at risk of being isolated with power and communications outages possible so follow advice from local authorities. It’s been unusually dry in these areas which may compound the impacts."Įven though river levels are currently low the intensity of rain to come will mean these quickly rise and extreme caution is advised.Ĭloser to the coast the highest risk of flooding comes when the tides are high.ĭelays on the roading network are also to be expected so it’s worth considering if travel is necessary.

"Significant impacts such as flash flooding and landslips are expected. "Rain accumulations are forecast to approach 750 mm (29.5 inches) about the ranges in a 42-hour period with and 150 to 250 mm (5.9 – 9.8 inches) near the coast. "The West Coast is one of the wettest parts of New Zealand, but this system is far from a normal wet day on the coast," MetService meteorologist, Lewis Ferris warns. While the current warnings are in place until Thursday night, the band of rain hangs around our shores so these warnings are likely to be extended and rain is forecast to make it across the North Island during the weekend. The extreme rain accumulations will cause disruptions across the regions that saw a similar system in July 2021. Some communities might end up cut off from the rest of the region. New Zealand's MetService has issued a Red Warning for Heavy Rain in Westland and Buller, valid from 01:00 LT on Wednesday, Febru(12:00 UTC, February 1). Dangerous river conditions are likely during this high-impact weather event, as well as significant flooding, landslides and travel disruption.