Thunderstorm

It issued a severe thunderstorm watch for Westland and Fiordland north of George Sound up to 9am. Orange heavy rain warnings cover Westland and the headwaters ...

Thunderstorms should ease in Fiordland around dawn, but continue in Westland until late this afternoon or evening, it said and the severe thunderstorm watch for Westland may be extended. Orange heavy rain warnings cover Westland and the headwaters of Canterbury and Otago lakes and rivers until this evening, and Fiordland north of Doubtful Sound to 7am. It issued a severe thunderstorm watch for Westland and Fiordland north of George Sound up to 9am.

Orange heavy rain warnings covered Westland and the headwaters of Canterbury and Otago lakes and rivers until this evening, and Fiordland north of Doubtful ...

By early morning there had been no river level warnings, she said. The Westland region was forecast to have up to 240mm of rain in the ranges by this evening, with 100mm-140mm expected near the coast and localised downpours of up to 45mm an hour during thunderstorms. Orange heavy rain warnings covered Westland and the headwaters of Canterbury and Otago lakes and rivers until this evening, and Fiordland north of Doubtful Sound to 7am.

Thunderstorms hitting the West Coast could spread to parts of Otago, Nelson and Canterbury, while SH73 between Jacksons and Kumara has closed due to a slip.

Thunderstorms would move into northern Buller, Nelson and western parts of Marlborough on Thursday night. MetService said there was a moderate risk of thunderstorms about central and southern Westland on Thursday morning and afternoon, and in northern Westland and southern Buller until early evening. Heavy rain warnings were also in place for the Canterbury lakes and rivers, the headwaters of the Otago lakes and rivers, and Fiordland north of Doubtful Sound. One lane reopened on Thursday morning. A heavy rain warning was still in place for Westland until 6pm Thursday with up to 240mm of rain expected about the ranges. *

The rain was torrential in some areas with roads covered by flooding in some places on the West Coast, Waka Kotahi manager Moira Whinham said. She called on ...

and there is still more to come as the active front delivering this heavy rain moves north over the area today— MetService (@MetService) An earlier orange warning had also been posted for heavy rain at the headwaters of Otago lakes and rivers, until 11am Thursday. By early morning there had been no river level warnings, she said. The Westland region was forecast to have up to 240mm of rain in the ranges by Thursday evening, with 100mm-140mm expected near the coast and localised downpours of up to 45mm an hour during thunderstorms. Orange heavy rain warnings covered Westland and the headwaters of Canterbury lakes and rivers until Thursday evening, though they could hit areas north of Arthur's Pass until 8pm Thursday. West Coast drivers are being called on to stay off the roads due to heavy rain and flooding, and a slip has shut State Highway 73, a key West Coast to Canterbury route.

A major highway on the West Coast will be closed overnight after a slip left rock, vegetation, trees and mud covering the road.

Thunderstorms would move into northern Buller, Nelson and western parts of Marlborough on Thursday night. Just after 5pm, Waka Kotahi said the highway would remained closed overnight. Heavy rain warnings were also in place for the Canterbury lakes and rivers, the headwaters of the Otago lakes and rivers, and Fiordland north of Doubtful Sound. One lane reopened on Thursday morning. A heavy rain warning was still in place for Westland until 6pm Thursday with up to 240mm of rain expected about the ranges. *

A new technique combining underused satellite and radar data in weather models may improve thunderstorm predictions, according to a team of Penn State ...

“There’s value in improving thunderstorm predictions from both Doppler radar observations and satellite observations that are currently underused and we showed that not only can they be used to improve predictions but putting them together has lots of benefits,” said Eure, lead author on the study. “Thunderstorms are so ubiquitous it’s hard to count how many you get in Pennsylvania, or the United States or globally every day,” said Keenan Eure, doctoral student in the Department of Meteorology and Atmospheric Science at Penn State. A new technique combining underused satellite and radar data in weather models may improve these predictions, according to a Penn State-led team of scientists.

Tens of thousands of thunderstorms may rumble around the world each day, but accurately predicting the time and location where they will form remains a ...

"There's value in improving thunderstorm predictions from both Doppler radar observations and satellite observations that are currently underused and we showed that not only can they be used to improve predictions but putting them together has lots of benefits," said Eure, lead author on the study. "We obviously can't model every molecule in the atmosphere, but we want to get as close as possible," Eure said. Forecasting previously relied on clear-sky observations, due to challenges in diagnosing the complex physical processes within clouds, the scientists said. "This observation combination had not been studied previously and ended up adding significant value to the model forecasts on this day." "Thunderstorms are so ubiquitous it's hard to count how many you get in Pennsylvania, or the United States or globally every day," said Keenan Eure, doctoral student in the Department of Meteorology and Atmospheric Science at Penn State. A new technique combining underused satellite and radar data in weather models may improve these predictions, according to a Penn State-led team of scientists.

A severe thunderstorm has hit Hawke's Bay, bringing some surface flooding to several communities already reeling in the wake of Cyclone Gabrielle.

"Very heavy rain can cause surface and/or flash flooding about streams, gullies and urban areas, and make driving conditions extremely hazardous. "These thunderstorms are expected to be accompanied by very heavy rain and damaging wind gusts. "These thunderstorms are expected to be accompanied by very heavy rain."

"These thunderstorms are expected to be accompanied by very heavy rain and damaging wind gusts."

A severe thunderstorm is hitting Hawke's Bay. The MetService weather radar detected severe thunderstorms moving east near Sherenden at 2.07pm on Friday.

But as of 3.15pm the band had since moved out to sea with the heaviest thunderstorms cleared. “Very heavy rain can cause surface and/or flash flooding about streams, gullies and urban areas, and make driving conditions extremely hazardous. “These thunderstorms are expected to be accompanied by very heavy rain and damaging wind gusts. MetService said the very heavy rain could cause surface and/or flash flooding about streams, gullies and urban areas, and make driving conditions extremely hazardous. These are changing times. “These thunderstorms are expected to be accompanied by very heavy rain.”