General October Weather
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These topics are a read-only archive and may be subject to out-of-date information.
For today's weather discussion head to: New Zealand Weather & Climate
These topics are a read-only archive and may be subject to out-of-date information.
For today's weather discussion head to: New Zealand Weather & Climate
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Re: General October Weather
Thunderstorms/small hail look probable for the inland North Island tomorrow afternoon! Both 12Z Ukmet and GFS agree on the shortwave crossing the North Island in the afternoon hours, timed with peak heating.
CAPE chart for 4pm
CAPE chart for 4pm
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Re: General October Weather
And I'll be smack bang in the middle...I'm not a chased, but this may warrant a drive around since its my days off and I'll be fishingNZstorm wrote:Thunderstorms/small hail look probable for the inland North Island tomorrow afternoon! Both 12Z Ukmet and GFS agree on the shortwave crossing the North Island in the afternoon hours, timed with peak heating.
CAPE chart for 4pm
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Re: General October Weather
Potential for some decent hail in the Bay of Plenty tomorrow. Best moisture convergence looks to be there and upper level lapse rates 7.5C.
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Re: General October Weather
Yea cold pool and shortwave quite well defined, Eastern Waikato and BOP best bet, mainly due to a WSW to SW flow. I don't like SW, WSW flows esp when it comes to convection, mixing out and cooler temps. Anyway East seems best.....NZstorm wrote:Potential for some decent hail in the Bay of Plenty tomorrow. Best moisture convergence looks to be there and upper level lapse rates 7.5C.
Metservice wrote: In the afternoon and evening, a pool of cold air aloft is expected to move east across the upper North Island. These cold temperatures in conjunction with daytime heating, surface wind convergence and a slow moving trough is expected to trigger widespread shower activity over the central and upper North Island.For southern Coromandel Peninsula,inland parts of Bay of Plenty and Rotorua,eastern Waikato, Taupo, and the ranges of Gisborne and Hawkes Bay, there is a high risk of thunderstorms, with heavy rain rates of 10 to 25mm/hr and hail of 10 to 20mm diameter. This is surrounded by an area of lower risk from eastern parts of Auckland and Coromandel Peninsula down to Taumarunui and across to northern Wairarapa eastwards.
Elsewhere, no thunderstorms or significant convection is expected over New Zealand Monday afternoon and evening.
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Re: General October Weather
Some good NE moisture coming in to BOP this morning which will help things along.
ttttttttttt
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Re: General October Weather
Good to see a more changeable weather pattern, many areas will get some rain this week. Good system showing up later in the week, thursday.
I will keep an eye on eastern Waikato for a possible chase this afternoon
I will keep an eye on eastern Waikato for a possible chase this afternoon
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Re: General October Weather
I see snow foretasted for later today in Queenstown
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Re: General October Weather
Driving from Tauranga to Wellington today, trying to delay the departure as long as I can but the missus has picked up on what I'm planning haha. Looking primed here though
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Re: General October Weather
Stuff just east of Tauranga and central Plateau atm, just a little to weak at this stage. Himawari 10 min Updates - absolutely awesome
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Re: General October Weather
A few weak IC strikes being picked up BOP way over the last hour, will be an interesting afternoon in the BOP thats for sure
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Re: General October Weather
Numerous thunderstorms in the region east of Taupo but no storms north of there, Hawkes Bay/ Gisborne region catching some rain/ storms moving off the High country
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Re: General October Weather
View of one of the storms today from Turoa ski field.
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Re: General October Weather
The storms seemed to go off just as we passed them, all the way down from Rotorua past the desert road. Looking at the radar history I was about half an hour in front of them :/. Lots of crackles on the AM radio but didn't manage to see any lightning.
Very surprised there wasn't anything decent north of Rotorua
Very surprised there wasn't anything decent north of Rotorua
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Last edited by Rogue on Mon 26/10/2015 21:52, edited 1 time in total.
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Re: General October Weather
Nice photo cbm
I think there was a lack of convergence north of Rotorua for storms to develop.
I think there was a lack of convergence north of Rotorua for storms to develop.
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Re: General October Weather
Excellent photos from the Volcanic Plateau.
The atmosphere north of Taupo had capping issues as well.I think there was a lack of convergence north of Rotorua for storms to develop.
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Re: General October Weather
Hope so, Richard. It eased off for a while but is rattling down again just now.
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Re: General October Weather
Had a great weekend in Ross on the west coast, just sensational weather
Nothing but a light shower or two here in Christchurch. Its getting alarmingly dry across the hinterland here towards Porters pass, much of the road verges have browned off already, no doubt the paddocks are going the same way
Nothing but a light shower or two here in Christchurch. Its getting alarmingly dry across the hinterland here towards Porters pass, much of the road verges have browned off already, no doubt the paddocks are going the same way
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Re: General October Weather
Something big looks to be brewing rainfall wise for Mid Canterbury south for next Tuesday, fingers crossed the models don't downgrade as per usual lately over the next week!
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Re: General October Weather
Managed to pick up 6.5mm yesterday and today the MS have a low risk of TS, so fingers crossed for more.
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Re: General October Weather
Another low pressure system and assoc upper level cold pool will be moving in tomorrow, affecting a good chunk of Northland.
Convection most probable around the Low center where the coldest upper temps are forecast and upper level winds are more weak.
Temps at 500mb down to -23°C, combined with a SFC temp of 18°C+ pre front with a DP of 14-16°C.
Cold front slowly sweeping in late afternoon early PM with a cold southerly change, should give sufficient buoyancy for Storms develop on the front.
Since mid level winds are forecast to be lack-luster, I think they will carry a more pulsy type characteristic.
Western Northland Looks best, however there is a risk of showers developing pre the front that could limit SFC temps and reduce temp differentiation.
Convection most probable around the Low center where the coldest upper temps are forecast and upper level winds are more weak.
Temps at 500mb down to -23°C, combined with a SFC temp of 18°C+ pre front with a DP of 14-16°C.
Cold front slowly sweeping in late afternoon early PM with a cold southerly change, should give sufficient buoyancy for Storms develop on the front.
Since mid level winds are forecast to be lack-luster, I think they will carry a more pulsy type characteristic.
Western Northland Looks best, however there is a risk of showers developing pre the front that could limit SFC temps and reduce temp differentiation.
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