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OhauitiWeather

David
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http://www.ohauitiweather.co.nz
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Tropical Storm (Hola)

Forecasters say the developing tropical low near #Vanuatu will become a Tropical Cyclone in 24 hours. NZ may be affected this weekend or Monday (tracking isn't yet locked in for NZ area). We have more details in our latest weather video.

http://www.facebook.com/WeatherWatch.co.nz/photos/a.360975457258567...

Posted on March 05, 2018 at 11:12 PM

Tuesday's national forecast

Posted by WW Forecast Team on Tue, 06/03/2018 - 04:10

A weak area of low pressure covers the North Island today with a chance of afternoon downpours, especially in the east with thunderstorms. Rain for the east of the South Island with cooler southerlies, drier in the west.

Northland, Auckland, Waikato & Bay Of Plenty
A mix of sun and cloud with light winds, afternoon sea breezes. Isolated showers may develop in the afternoon especially about Northland, southern Waikato and inland Bay Of Plenty. Showers turning heavy with thunderstorms about inland Bay Of Plenty then easing later in the day.
Highs: 24-28

Western North Island (including Central North Island)
Mostly sunny, some cloud builds about inland hills and ranges in the afternoon which may lead to isolated heavy showers. Showers then clearing later in the evening. Light winds then afternoon westerly quarter breezes.
Highs: 22-24

Eastern North Island
A mostly sunny morning then showers develop in the afternoon as light winds tend east to southeast. Showers may be heavy with thunderstorms in isolated spots then easing in the evening.
Highs: 23-27

Wellington
A mostly sunny morning then cloud increases from afternoon as southerlies freshen, late evening patchy showers.
High: 22

Marlborough & Nelson
Morning sun then cloud increases from midday as southeasterly winds develop, some rain in the evening as southeasterly winds freshen.
Highs: 22-24

Canterbury
A few showers then turning to rain around midday about South Canterbury before spreading northwards, clearing overnight. Rain may be persistent about inland areas for a time in the afternoon / evening. South to southwest winds freshen in the morning.
Highs: 14-18

West Coast
Morning sun then cloud thickens in the afternoon bringing areas of rain inland about the ranges. Light winds pick up from the southeast after midday.
Highs: 19-24

Southland & Otago
Morning showers then afternoon sunny spells about Southland, showers then some rain for at time about Otago before clearing in the evening. South to southwesterly winds.
Highs: 14-15

By Weather Analyst Aaron Wilkinson - WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/tuesdays-national-forecast-25...

Posted on March 05, 2018 at 11:01 PM

Monday's national forecast

Posted by WW Forecast Team on Mon, 19/02/2018 - 04:00

A front pushes northwards and weakens over the South Island today meanwhile the North Island is under a ridge of high pressure. However tropical cyclone Gita will be moving southwards in the Tasman Sea today, a tentacle of moisture extending out from Gita starts to bring rain to the western North Island from evening, this rain moves onto the upper South Island overnight and becomes heavy.

Northland, Auckland, Waikato & Bay Of Plenty
Areas of cloud and some sun for Northland and Auckland, the odd shower possible also. The Waikato and Bay Of Plenty is a bit cloudier today with showers developing around midday, one or two may be heavy for a time then easing this evening. Light northerlies.
Highs: 26-27

Western North Island (including Central North Island)
Increasing cloud, chance of a shower from afternoon then expect evening rain with a heavy falls possible for a time before easing overnight. West to northwesterly winds.
Highs: 24-26

Eastern North Island
Sunny areas and increasing high cloud, some scattered evening rain then clearing overnight. Gisborne may stay fairly dry. Light north to northeasterly winds.
Highs: 29-31

Wellington
Mostly cloudy with evening showers then overnight rain, gusty northwesterly winds.
High: 23-24

Marlborough & Nelson
Increasing high cloud. North to northwest winds change southeast overnight bringing rain, heavy by dawn on Tuesday.
Highs: 25-30

Canterbury
Sunny areas and some high cloud, cloud starts to increase from afternoon as northwest winds change southeast. Some drizzle may make its way into South and inland Mid Canterbury. Patchy rain or drizzle moves in for most overnight.
Highs: 21-28

West Coast
Morning rain about Fiordland then easing to the odd shower, showers further north clear in the evening. Winds from the northwest, changing southerly or southwest by evening for most.
Highs: 20-24

Southland & Otago
Showers now and then for Southland, sunny spells breaking through at times from afternoon. Gusty westerly winds. Otago sees a period of morning rain then the odd shower and sunny areas developing, southwesterlies.
Highs: 15-20

By Weather Analyst Aaron Wilkinson - WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/mondays-national-forecast-255...

Posted on February 19, 2018 at 3:41 AM

Wednesday's national forecast

Posted by WW Forecast Team on Wed, 14/02/2018 - 03:39

A front still lingers over the North Island today however it may be one of the last days for this particular front. About the South Island conditions are generally mostly cloudy in the east with some drizzle possible, mostly sunny in the west after any morning cloud breaks away.

Northland, Auckland, Waikato & Bay Of Plenty
Morning sunny spells, chance of a shower. Cloud thickens in the afternoon with showers becoming more likely, may even be a downpour then clearing later in the evening. Light northerlies change to the southwest during the afternoon / evening.
Highs: 25-27

Western North Island (including Central North Island)
A mix of sun and cloud with light west to northwesterly winds. Conditions may be a bit cloudier the further inland one goes, this cloud brings the risk of a few showers then clearing at night.
Highs: 22-25

Eastern North Island
Morning sunny areas, cloud builds in the afternoon then isolated showers develop, more so about Hawkes Bay and Gisborne. Showers may even become heavy then clearing at night. Winds from the northerly quarter.
Highs: 25-27

Wellington
Sunny areas and some high cloud, winds mostly from the northwest however there is a chance winds may tend southerly for a time in the afternoon.
High: 23-24

Marlborough & Nelson
Sunny areas and some high cloud, east to northeasterly winds for Marlborough. Afternoon northerlies for Nelson.
Highs: 23-25

Canterbury
Mostly cloudy Banks Peninsula southwards with the odd drizzle patch, some sun further north. In the evening cloud and some drizzle moves further north. Winds from the southwest then swinging around to the east by evening.
Highs: 18-23

West Coast
Any morning cloud breaks away then mostly sunny with light winds tending onshore in the afternoon.
Highs: 20-25

Southland & Otago
Mostly sunny weather for Southland with light winds in the morning tending southwest after midday. Otago sees cloudy areas, especially in the east with some drizzle, sunny spells more likely inland, winds from the easterly quarter.
Highs: 17-24

By Weather Analyst Aaron Wilkinson - WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/wednesdays-national-forecast-...

Posted on February 14, 2018 at 7:26 PM

Thursday's National Forecast

Posted by WW Forecast Team on Thu, 08/02/2018 - 04:00

A ridge lies over the South Island today while a southeasterly airflow lies over the North Island, strong in the far north.

Northland, Auckland, Waikato & Bay Of Plenty
The odd light shower turning to rain in the afternoon about Northland, spreading southwards later in the evening / overnight.Rain may be heavy about Northland from evening. Sunny areas and increasing cloud before rain moves in. East to southeasterly winds freshen.
Highs: 22-24

Western North Island (including Central North Island)
Sunny with some high cloud later in the day, easterly winds. Winds may tend westerly in the afternoon about northern Taranaki.
Highs: 22-26

Eastern North Island
Mostly cloudy with the odd drizzle patch, drying out in the afternoon for the Wairarapa with some sun breaking through. East to northeasterly winds.
Highs: 18-21

Wellington
A mix of sun and cloud with easterly quarter winds.
High: 21

Marlborough & Nelson
Mainly sunny weather with afternoon easterlies for Marlborough, winds tend northerly in the afternoon about Nelson.
Highs: 21-23

Canterbury
Sunny with light winds in the morning then afternoon east to northeast breezes.
Highs: 20-23

West Coast
Sunny with light winds tending westerly in the afternoon.
Highs: 20-25

Southland & Otago
A mainly sunny day with light winds and afternoon sea breezes.
Highs: 19-25

By Weather Analyst Aaron Wilkinson - WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/thursdays-national-forecast-255...

Posted on February 08, 2018 at 10:56 PM

Wednesday's national forecast

Posted by WW Forecast Team on Wed, 24/01/2018 - 03:37

A ridge of high pressure brings mainly settled and hot weather to New Zealand today.

Northland, Auckland, Waikato & Bay Of Plenty
Any morning cloud breaks away then mostly sunny with gentle southwesterly winds. Late afternoon / evening isolated showers possible for Northland. Winds may tend northwest in the afternoon about the Bay Of Plenty.
Highs: 27-31

Western North Island (including Central North Island)
Any morning cloud breaks away then mostly sunny, west to northwesterly winds.
Highs: 25-27

Eastern North Island
Sunny and hot, afternoon easterly winds.
Highs: 29-31

Wellington
Any morning cloud clears, sunny with northerly winds.
Highs: 25-26

Marlborough & Nelson
Sunny and hot, north to northeasterly winds.
Highs: 30-32

Canterbury
Sunny and hot, afternoon easterly breezes.
Highs: 28-31

West Coast
Rain about South Westland eases to showers in the afternoon then clearing later in the evening. North Westland sees sunny areas, cloud increases in the evening. West to northwesterly winds.
Highs: 23-29

Southland & Otago
Cloudy areas, some sun at times mainly inland. Chance of a shower about Southland in the morning then Otago in the afternoon. Light winds tending onshore in the afternoon.
Highs: 20-31

By Weather Analyst Aaron Wilkinson - WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/wednesdays-national-forecast-...

Posted on January 24, 2018 at 1:54 PM

Sunday's National Forecast

Posted by WW Forecast Team on Sun, 21/01/2018 - 04:00

High pressure dominates the South Island today while the sub-tropics return to northern New Zealand with late showers or downpours ahead of a wetter Monday.
Light winds for most places today but some coastal areas may be a bit windier.

North Island:
Cloudy areas increasing with downpours developing inland and around Northland. North to north east winds developing. Humid.
Highs: 23 to 28 '

South Island:
Mostly calm with afternoon downpours forming inland. Becoming cloudy later for a number of areas.
Highs: 20 to 30

- WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/sundays-national-forecast-dow...

Posted on January 21, 2018 at 1:09 PM

Saturday's National Forecast

Posted by WW Forecast Team on Sat, 20/01/2018 - 03:39

Upper North Island
Areas of cloud and some sun, there may be a light shower or two about otherwise fairly dry. May be the odd isolated heavy shower about Northland late afternoon / evening. High's in the mid to high twenties.

Lower North Island
Areas of cloud in the west, may even be a light shower or two but some sun at times also. Winds from the west or northwest. A mainly sunny day in the east with afternoon east to northeast breezes. High's in the mid to high twenties, temperatures may reach into the early thirties along the east coast.

Upper South Island
Cloudy areas in the west with the chance of a light shower or two, sunny areas the further north you go especially into Buller. Winds from the west or northwest. Mainly sunny about Nelson, Marlborough and Canterbury with afternoon sea breezes. Temperatures in the low twenties for the West Coast, mid to high twenties elsewhere, perhaps even cracking into the thirties about parts of Canterbury and Marlborough.

Lower South Island
Mostly cloudy in the west with the odd light shower, winds from the northwest. Mostly sunny in the east however some cloud develops during the afternoon bringing the risk of a light shower or two as light winds tend southwest. High's in the low twenties in the west, mid to high twenties in the east. Early thirties for some inland areas.

WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/saturdays-national-forecast-2...

Posted on January 20, 2018 at 2:44 PM

Thursday's national forecast

Posted by WW Forecast Team on Thu, 18/01/2018 - 03:28

Upper North Island
Rain with heavy falls possible at times, easing later this evening. The Bay Of Plenty only sees patchy showers or drizzle, some rain for a time in the evening about western Bay Of Plenty. Humid northeasterly winds. Temperatures reaching into the low to mid twenties.

Lower North Island
Rain, chance of a few heavy falls then easing in the evening. Northern Hawkes Bay and Gisborne stays mainly dry with some high cloud. Wellington sees early rain ease to the odd shower. Northerly winds. High's in the low twenties.

Upper South Island
Mostly cloudy with showers for North Westland, Nelson and Marlborough, winds from the north. Southern Marlborough through to Canterbury is mainly dry and sunny, some high cloud possible. This afternoon showers develop about South Canterbury, some may become heavy then easing later. A shower or two may spread northwards to about Banks Peninsula in the evening with a southwest change. High's in the low to mid twenties, high twenties for parts of Canterbury.

Lower South Island
Mainly dry first thing this morning, late morning showers develop with a southerly winds. Showers may be heavy this afternoon then easing later on / overnight. South Westland sees a few showers this morning then some sun breaks through this afternoon with showers moving into the ranges. Temperatures reaching into the low to mid twenties.

WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/thursdays-national-forecast-2...

Posted on January 18, 2018 at 4:20 PM

Wednesday's national forecast

Posted by WW Forecast Team on Wed, 17/01/2018 - 04:00

Upper North Island
Mostly cloudy with a light shower or drizzle patch at times, blustery northeasterly winds. Rain moves into Northland this evening. Highs in the low to mid twenties.

Lower North Island
Areas of cloud and sun, a spit of rain possible for Wellington from afternoon then rain moves into most western regions this evening. Some heavy rain possible overnight. North to northeasterly winds, gusty about eastern coastal fringes. Northeasterlies strong at times about coastal Taranaki. Temperatures reaching into the mid twenties for most, high twenties along the east coast.

Upper South Island
Rain pushing into North Westland, Tasman, Nelson and Marlborough this morning. Heavy falls possible about Nelson and Marlborough (especially Tasman) from this afternoon then easing around midnight. Canterbury sees thick high cloud, may be a few spots of rain especially in North Canterbury then clearing late afternoon, some sun later in the day. Northeasterly winds, becoming breezy about coastal Canterbury this afternoon. Highs in the low to mid twenties.

Lower South Island
Rain for South Westland, heavy at times then easing from afternoon. Morning spots of rain clear Southland and Otago then some sun breaks through, isolated showers may develop this afternoon / evening. Winds from the northeast however tending southeast about Southland from afternoon. Highs in the low to mid twenties.

WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/wednesdays-national-forecast-...

Posted on January 17, 2018 at 3:17 PM

Severe Storm to rapidly form as it approaches NZ tomorrow

Posted by WW Forecast Team on Wed, 03/01/2018 - 07:46

EXTENSIVE REPORT: A low is today forming offshore near Brisbane and will head towards New Zealand, rapidly deepening, intensifying and reaching our shores by tomorrow, Thursday.

While it may be severe for a time it may also be short lived and is likely to bring a burst of rough weather to some areas plus relief for some regions needing rain.

WeatherWatch.co.nz says campers and trampers need to be aware of this low which could produce very heavy rain in New Zealand, strong to gale force winds for a time and dangerous sea and beach conditions - in particular around parts of the North Island.

A humid northerly flow will continue today over the North Island with daytime heating leading to large cloud build ups and isolated torrential downpours with thunderstorms. This energy shifts further into the South Island on Thursday. Localised downpours could produce over 50mm of rain in just a few hours. Localised surface and flash flooding is possible.

On Thursday this quickly deepening low in the Tasman Sea will bring rain into the upper North Island with isolated heavy falls.

On Friday the low crosses New Zealand and clears the country during Saturday.

It's possible severe weather warnings will be issued - those near streams should be prepared to move to higher ground should this low produce flooding rains, which is possible in some spots - especially after such a long dry end to spring and start to summer.

As well as the low bringing rough weather to land it's likely to cause very dangerous marine conditions with waves up to 7 metres high and strong rips affecting both western and eastern coastlines of the North Island especially.

RAPIDLY FORMING LOW - BUT WILL IT BE A 'WEATHER BOMB'?
The air pressure with this low is going to rapidly drop. In a 24 hour period the low may drop more than 20hPa (hectopascals). European and American modelling is quite similar on the depth, intensity and rapid deepening of this low, showing it falling into the 970hPa range early on Friday morning when it's likely to be peaking in strength just to the west of the North Island. It may then weaken as it crosses land.

At this stage it looks like the forecast storm will fail to technically reach the levels of Bombogenesis - better known as a "Weather Bomb". For this low to be allowed to be called a "weather bomb" the central air pressure must drop by at least 24hPa in 24 hours and at this stage it looks like it may just fail to do this. However it will be close - so it's still possible.

NOT ALL WILL GET STRONG WINDS/STORM CONDITIONS
These lows are a bit tricky to forecast as they form so quickly then fade away quite fast. However previous lows like this have brought rain, but not always wind to all. Those in tents will find half of gale force (around 30km/h) very windy and potentially damaging. However for most others these winds aren't going to cause serious issues. When you get to gale force (around 60km/h) camping becomes horrible but again for most others it's just a windy day often without too many issues - perhaps a few power cuts. The only areas likely to see severe gales will be right near the centre and this may only affect a few pockets of the country. Sometimes with a rapidly forming low it may not be until a few hours out that we can lock in the highest risk areas for potential wind damage. It's important to note that near the centre of this low damaging winds are possible, but not too far from the centre damaging winds are less likely. Some areas may only have normal winds and a bit of rain - but with so many people outdoors we must cover all the risks for severe weather, even if only in pockets of the country.

RAIN PROBABLY THE MAIN FOCUS
As forecasters we're trying to manage all the various weather risks with this low, but probably the most widespread and significant feature about this incoming low is the chance of heavy rain and even flooding. This forecast will be positive news to many farmers, gardeners and growers though. The best set up for rain to absorb into the ground after such a dry period before is for drizzle or light rain to dampen the surface first. If the rain is too heavy too fast it will increase the chances of flooding - and this is a possibility. Cracks in the ground may also make slips possible in hilly areas.

4pm Wednesday heavy downpours around New Zealand (especially the North Island) some with thunder, due to daytime heating plus the more humid northerly flow building over the country.

4pm Thursday and more daytime heating producing afternoon downpours and isolated thunderstorms over the South Island and potentially the North Island, but perhaps more importantly the rapidly forming low in the Tasman Sea, bringing sub-tropical rain to the upper North Island.

4am Friday: The storm is expected to peak early morning Friday. This wind map above highlights how the worst of the winds are mainly out at sea, but may become hurricane force (120km/h) for a time near the centre. Whether this severely impacts land in NZ is unclear yet but we do expect gales (just over 60km/h) for many exposed areas for a time.

4pm Friday and the storm has peaked by now and should be weakening a bit due to NZ's landmass.

4pm Saturday and the deep low is weakening and moving away slowly - as a large high moves in from the Tasman Sea pushing the low offshore.

- WeatherWatch.co.nz (An IBM and Weather Company official business partner) http://www.weatherwatch.co.nz/content/severe-storm-rapidly-form-it-...

Posted on January 03, 2018 at 1:47 PM

Wednesday's national forecast

Posted by WW Forecast Team on Wed, 03/01/2018 - 03:59

Upper North Island
Areas of cloud and sun, there may be an isolated shower or two. Showers more likely during the afternoon, some could become heavy with thunderstorms then easing later in the evening. Light northeasterly winds. Temperatures reaching into the mid twenties.

Lower North Island
Morning cloud breaks to sunny areas, showers developing in the afternoon especially inland where some could become heavy with thunderstorms then easing later in the evening. Coastal areas may stay fairly dry all day especially in the east. Winds from the northeast mostly although tending westerly in the afternoon for western regions. Temperatures reaching into the mid twenties.

Upper South Island
Any morning cloud breaks to sunny areas, cloud build ups may produce an isolated downpour / thunderstorm during the afternoon for inland areas then easing later in the evening. Light winds tend onshore in the afternoon, high's reaching into the mid to high twenties.

Lower South Island
Any morning cloud breaks to sunny areas, showers develop about hills and ranges in the afternoon, some may be heavy with thunderstorms then easing later in the evening. Light winds tend onshore in the afternoon. High's in the mid to late twenties although perhaps not escaping the low twenties for South Westland.

WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/wednesdays-national-forecast-...

Posted on January 03, 2018 at 1:32 PM

Potential for Severe Storm to approach North Island this Thurs/Fri (+6 Maps)

Posted by WW Forecast Team on Tue, 02/01/2018 - 09:28

A deep low that can generate flooding rains, strong winds and dangerous beach conditions is in the forecast for the end of the week.

It's still early days and the modelling may alter, but here's the latest:

The next three days from today are dominated by a strengthening northerly wind which supplies heat and moisture (humidity) supporting the unstable current of air.

Afternoon thunderstorms are likely in interior regions in southern part of the North Island today and tomorrow. They spread also into the South Island tomorrow and Thursday as low-level northerly winds strengthen.

Some thunderstorms may be severe, producing locally heavy rainfall exceeding 30mm/h, gusty winds, and possible hail.

Following the northerly wind, a rapidly developing low pressure system will approach the North Island southeastward from the northern Tasman sea. Northland and Auckland will be exposed to strong winds over gale force at times with wind gusts on Thursday and Friday. Heavy rain is expected in those areas in Thursday during the daytime, and Bay of Plenty and Waikato in Thursday night, spilling over into Friday.

Over the few days some areas may get over 100mm of rain.

Due to the potential rapid development of this forecast low (and always the chance it may not pan out to be quite as severe or perhaps even worse) we advise you check back with all our forecasts and news stories over the next few days, also the latest from the various Government funded forecasters.

WeatherWatch.co.nz will have daily updates.

JUST HOW MUCH RAIN COMPARED TO NORMAL IS COMING?
For over two months now this map has shown mostly red or pink (which means drier than average with dark red indicating almost no rain coming over the next 7 days). But this latest map shows the North Island is likely to be drenched with wetter than usual weather. Data by the US Govt showing the next 7 days of rain and which areas will be wetter than usual (blue) and drier than usual (red). Normal % of rainfall = white. As you can see the North Island may be exposed to a fair bit of wet weather.

- WeatherWatch.co.nz (An official IBM Business Partner)
- Link to original WaetherWatch article (With Maps) http://www.weatherwatch.co.nz/content/potential-severe-storm-approa...

Posted on January 02, 2018 at 2:47 PM

RainWatch - Tuesday 02nd January 2018

Posted by WW Forecast Team on Tue, 02/01/2018 - 07:00

A light northerly airflow lies over New Zealand today, flowing around a large high centered well east of New Zealand in the Pacific Ocean.

Most parts of the North Island have the chance of a shower today, but there will be many dry areas also. The chance of showers increases for inland areas during the afternoon / evening where heating and converging winds could lead to heavy downpours and possibly even thunderstorms. Showers ease later this evening. I would try to be more specific but the nature of these showers is often quite random and hard to narrow down too much.

Most of the South Island is dry this morning, just the chance of a light shower for North Westland and parts of Nelson / Marlborough. This afternoon the shower risk increases for inland areas north of about South Canterbury, showers will be quite isolated in nature so many parts may remain dry. But for areas that do see showers there is the risk of a downpour and perhaps even a thunderstorm. Showers activity clears later in the day / overnight.

WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/rainwatch-tuesday-02nd-januar...
Image - Tuesday 02nd January 1pm MSLP / Rain map - weathermap.co.nz

Posted on January 02, 2018 at 2:38 PM

Tuesday's national forecast

Posted by WW Forecast Team on Tue, 02/01/2018 - 04:38

Upper North Island
Cloudy areas and a shower or two, showers more likely this afternoon with downpours and perhaps even thunderstorms. Heavy falls more likely about southern Auckland, Waikato and inland Bay Of Plenty. North to northeasterly winds. High's in the low to mid twenties.

Lower North Island
Cloudy areas, showers develop this afternoon especially inland with a chance of heavy falls and thunderstorms then easing later this evening. Along the eastern coastal fringes conditions are mainly dry today with areas of sun, further inland about the ranges showers are more likely. Light winds tend onshore after midday. High's in the low to mid twenties.

Upper South Island
Morning cloud breaks to sunny spells, there may be a light shower this morning for Nelson / Marlborough. This afternoon showers develop for inland areas, some may become heavy with thunderstorms then clearing later on. Light winds tend onshore this afternoon. Temperatures reaching into the mid twenties, perhaps even late twenties for some isolated inland parts of Canterbury and Marlborough.

Lower South Island
Any morning cloud breaks to mostly sunny weather, light winds then afternoon sea breezes. Temperatures in the mid twenties this afternoon, high twenties to early thirties inland.

WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/tuesdays-national-forecast-24...

Posted on January 02, 2018 at 2:28 PM

Tuesday's national forecast

Posted by WW Forecast Team on Tue, 19/12/2017 - 04:00

A front pushes northwards over the South Island today, warm northwesterlies precede the front then changing cooler southwest in behind. Westerly quarter winds for the North Island for much of the day, southerlies reach the lower North Island later this evening / overnight.

Northland, Auckland, Waikato & Bay Of Plenty
A mix of sun and cloud with west to southwesterly winds, picking up a little from afternoon.
Highs: 24-26

Western North Island (including Central North Island)
Sunny areas and thickening high cloud, later in the evening or overnight a southerly change brings some rain.
Highs: 20-23

Eastern North Island
Mostly sunny with some high cloud, winds tend northwest inland and northeast about coastal Hawkes Bay / Gisborne. Later in the evening or overnight a fresh southwest change brings some rain.
Highs: 23-27

Wellington
Plenty of high cloud with north to northwesterly winds. A late evening southerly change brings some rain.
High: 21

Marlborough & Nelson
Sunny areas and some high cloud, later in the evening a southerly change brings a few showers.
Highs: 23-27

Canterbury
Mostly sunny with some high cloud, a fresh late afternoon southwest change brings a few showers. Drying out overnight.
Highs: 21-26

West Coast
Mostly cloudy with a shower or two possible, rain moves through South Westland in the morning then pushing into North Westland during the afternoon as westerlies change southwest. Drying out overnight.
Highs: 17-20

Southland & Otago
Rain moves through Southland in the morning, clearing by midday. Rain moves into Otago late morning although more patchy by this stage. Conditions drying out in the afternoon with some sun breaking through. Fresh southwesterlies die out later in the day.
Highs: 14-19

By Weather Analyst Aaron Wilkinson - WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/tuesdays-national-forecast-24...

Posted on December 19, 2017 at 12:44 PM

How hot does it get in Australia?

Posted by WW Forecast Team on Fri, 15/12/2017 - 12:58

With summer underway in Australia and heatwave conditions affecting a number of states this week, a lot of temperature observations are being compared to historical records.

These comparisons help us answer questions like: Has it been this hot before? How unusual is this type of heat? It's also a good way to find out if it really was "hotter than this when I was growing up."

Australia is fortunate to have a comprehensive and robust database of observed temperatures, which stretches back more than 100 years for many locations. This database is scrupulously maintained by the Bureau of Meteorology and it provides us with a rich history of weather information in Australia.

While all heatwaves are worth monitoring and can cause serious illness or even death, they aren't all record breaking.

So, what would it take to beat any previous temperature observation in Australia?
Our nation's highest reliably recorded temperature was a scorching 50.7 degrees at Oodnadatta Airport on January 2nd, 1960.

Western Australia's Mardie is the only other location in the country with a reliable observation above 50 degrees, reaching 50.5 degrees on February 19th, 1998.

Here are the highest temperatures on record by state/territory:
South Australia - 50.7C at Oodnadatta on January 2nd, 1960
Western Australia - 50.5C at Mardie on February 19th, 1998
NSW/ACT - 49.7C at Menindee on January 10th, 1939
Queensland - 49.5C at Birdsville on December 24th, 1972
Victoria - 48.8C at Hopetoun on February 7th, 2009
Northern Territory - 48.3C at Finke on January 2nd, 1960
Tasmania - 42.2C at Scamander on January 30th, 2009
If you were a child in Oodnadatta in 1960, then it really was hotter when you were growing up.

- Ben Domensino, Weatherzone
- Link to WeatherWatch article: http://www.weatherwatch.co.nz/content/how-hot-does-it-get-australia...

Posted on December 15, 2017 at 3:09 PM

Friday's national forecast

Posted by WW Forecast Team on Fri, 15/12/2017 - 04:00

A ridge lies over the North Island today, expect a northwesterly airflow further south with a front moving onto the lower South Island.

Northland, Auckland, Waikato & Bay Of Plenty
Mostly sunny, low risk of an isolated shower late afternoon / evening, mainly dry otherwise. Light winds in the morning then afternoon sea breezes.
Highs: 23-25

Western North Island (including Central North Island)
Mostly sunny with a touch of high cloud from afternoon, light winds in the morning then afternoon west to northwest winds. May be a brief shower for Taranaki early afternoon otherwise mainly dry.
Highs: 22-25

Eastern North Island
Mostly sunny, there may be a few early showers about Gisborne. Northeasterlies for the Wairarapa and Hawkes Bay, winds tend southeast about Gisborne then northeast there in the evening.
Highs: 20-23

Wellington
Sunny areas and some high cloud, breezy northerly winds.
High: 22

Marlborough & Nelson
Mostly sunny with some high cloud, northwesterly winds for Marlborough. Southwesterlies tend northerly around midday for Nelson.
Highs: 25-29

Canterbury
Mostly sunny with some high cloud, northwesterlies for most however winds tending northeasterly about the coast.
Highs: 26-29

West Coast
Mostly cloudy, there may be a shower or two about. Some rain moves into Fiordland during the afternoon. Northwesterly winds.
Highs: 18-23

Southland & Otago
Thick high cloud about Southland with a spot of rain possible then a few showers from afternoon as northwest winds change southwest. Further north into Otago there may be a spot of rain in the morning then sunny areas breaking through high cloud in the afternoon, northwesterlies change southwest late afternoon or evening bringing the risk of a brief shower otherwise staying fairly dry.
Highs: 22-25

By Weather Analyst Aaron Wilkinson - WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/fridays-national-forecast-289...

Posted on December 15, 2017 at 3:05 PM

Just what exactly is a heatwave? Here's how it is defined:

Posted by WW Forecast Team on Thu, 14/12/2017 - 10:47

New Zealand has recently had a heatwave - and now a large portion of Australia is being affected by heatwave conditions this week. But are heatwaves worth all the attention, or are they just normal summer weather? And can a heatwave be relative to where you are? Weatherzone digs down and explains:

Heatwaves are extended periods of hot weather that are capable of causing heat stress to people and infrastructure.

The Bureau of Meteorology describes heatwaves as three or more consecutive days where both daytime and nighttime temperatures are unusually high for a location at that time of year. Their definition also takes into account weather conditions during the weeks preceding a heatwave, as this too can influence heat stress.

In Australia, heatwaves are classified into three categories. These are low intensity, severe and extreme heatwaves.

Low intensity heatwaves are fairly common between October and March and most people are able to cope with these conditions.

Severe heatwaves are likely to cause discomfort and stress in vulnerable people, such as the elderly and those with pre-existing medical conditions.

Extreme heatwaves are the least common and most dangerous. These events can adversely affect the health of anybody and can reduce the effectiveness of infrastructure, such as power and transport networks.

Heatwaves can also increase the risk of dangerous bushfires, particularly if they are combined with dry air, strong winds or thunderstorms.

Sadly, heatwaves are the most deadly natural hazard in Australia and have caused more deaths than tropical cyclones, bushfires or floods. During the Black Saturday bushfires in Victoria during 2009, more than twice as many lives were lost due to the hot weather than the fires themselves.

So, while heatwaves are common in Australia and happen each summer, they are important to understand and you should know what to do when they occur.
During heatwaves you should drink plenty of water, take steps to keep yourself cool, avoid unnecessary exercise and time in the sun, check on the condition of friends and family and have a plan to act on in case you start to feel unwell.

- By Ben Domensino, Weatherzone
- Link to WeatherWatch article: http://www.weatherwatch.co.nz/content/just-what-exactly-a-heatwave-...

Posted on December 14, 2017 at 4:17 PM

Thursday's national forecast

Posted by WW Forecast Team on Thu, 14/12/2017 - 04:00

An anticyclone muscles in over New Zealand today while a southeasterly airflow eases over the North Island.

Northland, Auckland, Waikato & Bay Of Plenty
Early rain or showers clear then becoming mostly sunny, could be a rogue shower about Northland during today. Light southerly quarter winds.
Highs: 24-26

Western North Island (including Central North Island)
Mostly sunny with southeasterly breezes, there may be some cloud and the chance of a shower spilling over from the east towards the ranges in the east.
Highs: 18-22

Eastern North Island
Morning rain easing to showers. There may be some sun later in the day mainly about the Wairarapa. Cool south to southeasterly winds.
Highs: 18-20

Wellington
Any early showers clear then becoming mostly sunny. Southeasterly winds.
High: 18

Marlborough & Nelson
Any early light drizzle clears then cloud breaks to sunny spells, east to southeasterly winds.
Highs: 18-21

Canterbury
Chance of a morning drizzle patch then afternoon sunny spells break through, east to northeasterly winds becoming breezy.
Highs: 17-19

West Coast
A mix of sun and cloud, a few isolated showers are possible in the afternoon, for North Westland especially. Light winds tend northwest in the afternoon.
Highs: 19-23

Southland & Otago
Sunny areas and some high cloud, light winds. East to northeasterly winds freshen about the Otago coast.
Highs: 19-26

By Weather Analyst Aaron Wilkinson - WeatherWatch.co.nz http://www.weatherwatch.co.nz/content/thursdays-national-forecast-2...

Posted on December 14, 2017 at 4:11 PM

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OhauitiWeather

OhauitiWeather
Total Posts: 337
Joined: February 27, 2012

Thursday's national forecast

http://www.weatherwatch.co.nz/content/wednesdays-national-forecast-266

A front races northwards over the South Island this morning then pushes northwards over the North Island this afternoon / evening, all in a strong westerly quarter airflow.

North…

Posted on May 23, 2018 at 11:29 PM

OhauitiWeather

OhauitiWeather
Total Posts: 337
Joined: February 27, 2012

Wednesday's national forecast

Posted by WW Forecast Team on Wed, 23/05/2018 - 04:00

A front clears off to the northeast of the North Island early this morning, expect a cold southwesterly airflow for the rest of the day.

Northland, Auckland, Waikato & Bay Of Plenty
Showers, so…

Posted on May 23, 2018 at 11:17 PM

OhauitiWeather

OhauitiWeather
Total Posts: 337
Joined: February 27, 2012

Tuesday's national forecast

Posted by WW Forecast Team on Tue, 22/05/2018 - 05:01

A northwesterly airflow strengthens over New Zealand today with a front sliding across the upper North Island during the day, weakening by evening. Another front (this time a cold change) moves ont…

Posted on May 23, 2018 at 11:13 PM