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Re: General July Weather
Posted: Mon 17/07/2017 13:16
by einzack
Coldest day of the year (so far) yesterday. Reached 3.4°C just after 10pm, and that felt a long way off when it was 1.8°C at 1pm. And with having some drizzle when air temp was -1.6°C made for a rather cold and slippery day. A friend headed out for a run at 10am, but turned round after 400m cause was just like running on an ice rink...
Only 5 days so far this month where we've hit 10°C, so flying through my wood pile.....
Re: General July Weather
Posted: Mon 17/07/2017 17:39
by NZ Thunderstorm Soc
Been rather a wet day here, MS was onto it with their 20 odd mm.
I see a shallow low off the Canterbury coast probably responsible.
There was some red on the radar but we didn't get that here.
Rain-band seems to of 'just hung around' over South Canterbury this afternoon, after coming in from the north this morning. Light SW here. 14.5mm to 5:30pm.
Re: General July Weather
Posted: Mon 17/07/2017 18:49
by Dean.
We missed the bulk of the rain here in Mid Canterbury
Re: General July Weather
Posted: Mon 17/07/2017 20:21
by Richard
Dean. wrote:We missed the bulk of the rain here in Mid Canterbury
Same ol story even further north, couple of spots and thats it but mostly a pleasant day with a NW wind
Re: General July Weather
Posted: Tue 18/07/2017 18:00
by spwill
A mild day here for July 10-17C, stayed dry with afternoon sunny breaks.
Re: General July Weather
Posted: Wed 19/07/2017 07:35
by NZstorm
I see the max is 17C tomorrow for Auckland, possibly get that today too. Always happy to be getting through July with milder temps.
Some colder upper air reaches the North Island from late tomorrow into Friday. A few squally thunderstorms on the cards for the west and north.
Re: General July Weather
Posted: Thu 20/07/2017 07:24
by NZstorm
Cold upper air across the North Island tomorrow. There is a shortwave approaching around the middle of the day tomorrow so some squally thundery cells in the west.
500mb chart for midday Friday
Re: General July Weather
Posted: Thu 20/07/2017 16:58
by hozza95
Bit of a rarity for us lately here getting to double digits for just the 2nd time in the last 30 days. Hard to remember the last time we've had so few mild days in winter. When I last looked a couple of days ago we were 1.5 degrees down on our usual July max, and 1 degree down on the mean.
Re: General July Weather
Posted: Thu 20/07/2017 18:17
by Andy
16 degrees here today warmest day since the 21 June. Great to get the kids back outside!
Re: General July Weather
Posted: Fri 21/07/2017 10:11
by NZstorm
Hearing thunder to the west.
Re: General July Weather
Posted: Fri 21/07/2017 10:14
by spwill
Some booms out west with Cb moving across that area, Titirangi I think.
Re: General July Weather
Posted: Fri 21/07/2017 10:57
by NZstorm
Heavy rain over central Auckland now. Odd flash and thunder observed.
Re: General July Weather
Posted: Fri 21/07/2017 10:59
by NZstorm
Small hail now.
Re: General July Weather
Posted: Fri 21/07/2017 11:05
by spwill
Yes, more thunder/lightning and small hail here.
photo, incoming storm.
Re: General July Weather
Posted: Fri 21/07/2017 12:19
by spwill
More thunderstorms incoming.
Re: General July Weather
Posted: Fri 21/07/2017 12:35
by spwill
A nice bright lightning strike to the west, loud thunder.
Re: General July Weather
Posted: Sat 22/07/2017 13:26
by David
This is the 3rd month this year to reach 200 mm rainfall here. Looks like the weather stays unsettled for the rest of the month.
Re: General July Weather
Posted: Sun 23/07/2017 08:52
by NZstorm
Thunderstorms/hail for the west of the North Island Monday night.
GFS forecast sounding for west of Auckland midnight Monday.
Re: General July Weather
Posted: Mon 24/07/2017 07:07
by NZstorm
Plenty of lightning in the Tasman this morning.
The system will weaken a bit by the time it gets here. But the lapse rate will be around 7.5C which is condusive to lightning so we will see if we can get a storm in the Auckland vicinity tonight/early morning.
Re: General July Weather
Posted: Mon 24/07/2017 07:10
by Richard
From -1.1deg at 2.40 am to 10.6deg at 7.00am. gota love the NW wind this time of year.
Re: General July Weather
Posted: Mon 24/07/2017 09:05
by spwill
David wrote:This is the 3rd month this year to reach 200 mm rainfall here. Looks like the weather stays unsettled for the rest of the month.
An unsettled July, your area looking particularly wet. I see Whangaporoa is near 110mm.
Might get our first frost of the month here this weekend, a bit far out but Sunday morning could produce frost in the Auckland area.
Will keep a watch for a Tstorm here in the overnight hrs tonight
Re: General July Weather
Posted: Mon 24/07/2017 10:54
by Tornado Tim
Quite a bit of Lightning going on the Tasman for the sure this morning, resulting Thunderstorm Outlook looks quite good for the West Coast
Metservice wrote:
Several fronts are moving north over the country today. There is strong convection associated with some of the fronts.
Most of the thunderstorms are now north of Fiordland, but there remains a moderate risk of further thunderstorms for Fiordland this morning. For northern Fiordland, Westland, Buller and northwest Nelson there is a high risk of thunderstorms this morning and afternoon. The risk reduces to moderate this evening. As the fronts spread onto the North Island this evening there is a moderate risk of thunderstorms for western Whanganui, Taranaki, Waitomo, coastal Waikato and western Auckland this evening and tonight. These thunderstorms are likely to be accompanied by localised heavy rain with intensities of 10 to 25mm per hour and small hail.
This evening and tonight there is a low risk of thunderstorms about Kapiti,Horowhenua, western Manawatu, eastern Whanganui and the west coast of Northland.
No other areas of severe convection or thunderstorms are expected.
Re: General July Weather
Posted: Mon 24/07/2017 12:51
by NZstorm
The upper flow is very marginal tonight over Auckland. 500mb wind now looking to be 25knots which for a winter thunderstorm set up is weak. I like to see 40 knots +.
Stronger upper flow vents the cb's aloft and increases the lift.
Re: General July Weather
Posted: Mon 24/07/2017 15:03
by Chris Raine
Off shore thunderstorms. Rain has eased. Heard no thunder on the land
Re: General July Weather
Posted: Mon 24/07/2017 15:44
by Razor
The forecast of rain, possible heavy for ChCh on Thursday is concerning. The Heathcote basins at the foot of the Port hills are full from the weekend and will take a few more days yet to drain away. It will take very little rain to cause further grief downstream. At least the king tides should have passed?
I took a wee run up through Victoria Park and down through the Bowenvale Valley this morning. Numerous small slips and slumps, and the stream which is usually virtually non existent is still running high 2 days after the rain.