Tropics


New Zealand's risk of severe weather diminishes today as Australia's risk soars (+7 Maps)

For the first time in a week the chances of severe weather in New Zealand is reducing while over the ditch Australia is bracing for a significant storm to kick off the first day of summer on the meteorological calendar, with a potential tropical cyclone soon after.


Another sub-tropical low this weekend, what will it mean for NZ? (+2 Maps)

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This weekend approaching will be New Zealand's second weekend in a row with a sub-tropical threat, but like the weekend we've just had this next low may also "brush" the country with the bulk of the wind and rain out at sea again.

Still, it remains what we call "one to watch".


Special double weather Video: NZ's spring blast - what is coming this week?

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In Monday’s special double video we track Hurricane Irma and the spring blast currently hitting New Zealand with hail, snow, thunder and blustery winds.

The week ahead is looking milder as winds shift westerly and then more nor’west later in the week. More rain and showers are coming though - and more winds.


VIDEO with Philip Duncan: Spring blast for NZ and Hurricane Irma turns deadly

We’re tracking two systems again today, the classic spring blast around New Zealand and Category 5 Hurricane Irma which is churning through the Caribbean.

Firstly, in New Zealand the next two days will see more of the same - rain and showers in the west of both islands with isolated squalls, hail and thunder, most likely on the West Coast.


Hurricane Irma: Powerful storm blamed for 3 deaths, 90% of Barbuda destroyed

Hurricane Irma is battering the northern Virgin Islands and hurtling toward Puerto Rico after smashing a string of small northern Caribbean islands, where at least three people were killed. CNN is reporting that up to 90% of Barbuda (an island Irma directly hit last night) has been destroyed.


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.


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).


Tracking Friday's heavy rain & possible flooding (+Maps)

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A sub-tropical low with energy left over from Cyclone Donna is affecting the North Island with heavy rain and the risk of localised slips and flooding.

As of 8am the centre of this low was over Northland - with the bulk of the rain pushing southwards.