Storm


Category 5 Hurricane Irma makes landfall, Absolutely stunning pressure drop

Hurricane Irma has made landfall in the Caribbean Islands as an historical Category 5 hurricane (and is still tracking towards Florida) - the island it made landfall on is tiny and will not impact the power of the storm.

A short time ago Irma crossed the island of Barbuda, home to around 2000 people. 

Incredibly, the air pressure fell 50hPa (millibars) in just one hour.


Double Forecast Video: Rough weather for NZ + Category 5 Hurricane Irma heading to Florida

We have a double record today, an in depth look at the typical spring blast of weather around New Zealand plus we extend on and cover historic Cat 5 Hurricane Irma as it churns in the Atlantic Ocean with 300km/h winds sustained and is aiming for Florida.
 
But first, New Zealand’s dealing with thunderstorms, isolated tornados and heavy downpours as big westerly blast

'Potentially catastrophic' Hurricane Irma nears eastern Caribbean islands

Category 5 Hurricane Irma has become one of the strongest storms recorded in the Atlantic, and is threatening to slam into Caribbean islands including Puerto Rico and the Virgin Islands with "potentially catastrophic" force on Wednesday, the National Hurricane Center said.


Unsettled weather returns as further low pressure moves in, more concerning rain for Canterbury too

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A large area of low pressure is moving towards New Zealand this weekend and brings a fair bit of weather worth tracking - some kicking off as early as overnight tonight.


Storm event comes to a slow end as rain finally starts to fade in Chch

FINAL UPDATE 8:20pm --- Rain is coming to a gradual end in Christchurch this evening with a mix of light falls, drizzle and developing dry areas. While some briefly heavier rain/showers may still flare up the chances of concerning rainfall is now significantly starting to drop.


Deep low pressure system over New Zealand was 3500kms wide!

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This low was intense. On Friday it had a central air pressure into the lower 960hPa range and covered an area over 3500kms wide, from east to west, north to south.

On Friday it was the second largest low on the planet.


Very deep low centred near Banks Peninsula, heavy rain continues further south

Updated 3pm --- The very deep centre of the low crossing New Zealand now lies just east of Christchurch with weather stations around the area showing the air pressure is incredibly low. The air pressure is down to 964hPa in eastern Banks Peninsula while Christchurch is showing 970hPa. This compares to Auckland, which is 989hPa. 


Day by day, how this next big low might impact NZ and those travelling

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The large and deep low pressure system approaching New Zealand is complicated to forecast due to so many moving parts - but we've done our best to identify what the key issues will be each day and where. With such a large low more fine tuning will be needed over the next 48 hours.

THE GENERAL SET UP:


Your Photos: (x14): Auckland's Thursday thunderstorms produce seriously stormy clouds

There were sunny spells Thursday morning, intense downpours at lunchtime and by the end of the day Aucklanders and other parts of the Upper North Island were viewing some seriously stormy looking clouds.

We've had so many photos sent in to us on via our Twitter account 


Southern Hemisphere wraps up a record-quiet year for tropical cyclones

June 30th marked the end of a record-calm year for tropical cyclone activity in the Southern Hemisphere. A cyclone “year” extends from July 1 to June 30 south of the equator (this is because cyclones peak in the warm season, which straddles adjacent calendar years in the Southern Hemisphere).