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General September Weather
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Re: General September Weather
Southerly never came to much here, now back to the NE. Cloud out to sea could provide something?NZ Thunderstorm Soc wrote: ↑Fri 29/09/2023 17:55 I'm expecting that too. Might see a flash out to sea
Winds died down now and calm. Awaiting the SW to come through and see what will eventuate from then ?
JohnGaul
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Re: General September Weather
It didn't.
After a cool start, a fine sunny day eventuated.
Warm around lunchtime with today's maximum of 20.6C recorded then.
A westerly wind picked up during the afternoon.Remaining fine and clear with a few strong gusts.
Fine evening but some cloud out to the east later.
After a cool start, a fine sunny day eventuated.
Warm around lunchtime with today's maximum of 20.6C recorded then.
A westerly wind picked up during the afternoon.Remaining fine and clear with a few strong gusts.
Fine evening but some cloud out to the east later.
JohnGaul
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Re: General September Weather
I noticed that might of happened. Been watchful this evening but I thought that anything that may eventuate would be out to sea instead of over land in their town forecasts. Mike was close to probably seeing something off Birdlings Flat this evening,
Forecasts for the South Island today not very good.
![Sad :(](./images/smilies/icon_sad.gif)
Should of had more districts mentioned in their 'short' forecast which remained until after 11pm,rather than saying the rest of the South Island apart from Nelson and Marlborough would be stormy with thunderstorms and hail
![Shame on you [-X](./images/smilies/eusa_naughty.gif)
JohnGaul
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Re: General September Weather
Yes thunderstorm in timaru and hail reported from a girl I know down their. Sent me a voice note, sounded reasonable size
Mike
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Re: General September Weather
Horrah at last. Better late than never.
Thunderstorm with hail moving north through Geraldine with hail from 3am this morning.
Looking at radar, an active band extending from here out to the the east and eventually arriving in ChCh later.
...anyway, easing now and back to bed.
Thunderstorm with hail moving north through Geraldine with hail from 3am this morning.
Looking at radar, an active band extending from here out to the the east and eventually arriving in ChCh later.
...anyway, easing now and back to bed.
JohnGaul
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Re: General September Weather
Woken by thunder at 4.30, only a couple, followed then by hail, lots of it, but really small sized, 1 -2 mm. Amazed my shade cloth is holding in there, only just. Wont know the rainfall total from this front till it melts, but so far 13mm and climbing
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Re: General September Weather
It's good to know that storms can fire overnight even for so early in the season. But given the right set up it certainly is possible.
Heavy rain at times woke me through the night, but nothing too major.
The band of coastal showers with hail should move in soon and linger until mid afternoon. There might be a slight thunder risk in there too.
This will remain generally coastal and from Rakaia northwards.
Heavy rain at times woke me through the night, but nothing too major.
The band of coastal showers with hail should move in soon and linger until mid afternoon. There might be a slight thunder risk in there too.
This will remain generally coastal and from Rakaia northwards.
Canterbury, home of good rugby and severe storms
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Re: General September Weather
Just had a heavy shower with pea sized hail through here in southern Christchurch, nice combination of weather and a good All Black's performance
.
Some good strong wind gusts too, I think the windy app has it up to 45kts today.
![Applause =D>](./images/smilies/eusa_clap.gif)
Some good strong wind gusts too, I think the windy app has it up to 45kts today.
Canterbury, home of good rugby and severe storms
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Re: General September Weather
Hailing in Akaroa. Coming over from Christchurch, there was a snow flurry at Hilltop and a dusting of white on the road coming down to Barry’s Bay. (probably hail) Some hills dusted above about 600m.
Last edited by tich on Sat 30/09/2023 17:04, edited 2 times in total.
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Re: General September Weather
Some nice beefy cells and squall lines hanging around Northland today. My mate is currently figuring out how to get his tramp down...
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- Richard
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Re: General September Weather
Looks like a chainsaw job getting that down.
Still got patches of hail laying around which seems to have been concentrated here, a k up the road and there was little to be seen.
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Re: General September Weather
Luckily no damage from the hail from the 3am thunderstorm.
It seemed to be soft and only 5 mm across from the ones I got and put in the freezer. All gone by the morning.
It seemed to be soft and only 5 mm across from the ones I got and put in the freezer. All gone by the morning.
JohnGaul
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Re: General September Weather
My Westerfield Spy reports:NZ Thunderstorm Soc wrote: ↑Sat 30/09/2023 17:55 Luckily no damage from the hail from the 3am thunderstorm.
It seemed to be soft and only 5 mm across from the ones I got and put in the freezer. All gone by the morning.
"own personal thunderstorm this morning, big lightning flashes and growls of thunder 3:15am - 4:15am, rain and soft hail from 3:45am."
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Re: General September Weather
Awoken by the sound of thunder around 3am this morning.
Being doubtful about MS forecasts for Friday forecasting thunderstorms when it was fine with westerly winds and 30% humidity, and MS dropping their Timaru TS forecast at 11pm, I thought a normal change would come through overnight.
...but it didn't.
Fantastic thunderstorm with some bright flashes especially when it moved north over here. Bright arcing cloud to cloud flashes delivering some loud rumbles of thunder. 0.5mm sized hail fell from the cloud delivering a total of 4.5mm for today.
Sadly, I never heard any 'dump' thunder which is my favourite kind of thunder after a long roll. The storm moved north just before 4am, and no more thunder was heard from here although there could of been a few distant rumbles and flashes as it moved north.
....anyway a fine day eventuated with strong SW winds easing by evening. 14.5C the maximum for today.
Checking the damage the hail may of caused to blossoms and a row of tulips we have got, there was nothing, thank goodness.![Smile :smile:](./images/smilies/icon_smile.gif)
EDIT: Some hail on the front steps from the thunderstorm
Being doubtful about MS forecasts for Friday forecasting thunderstorms when it was fine with westerly winds and 30% humidity, and MS dropping their Timaru TS forecast at 11pm, I thought a normal change would come through overnight.
...but it didn't.
Fantastic thunderstorm with some bright flashes especially when it moved north over here. Bright arcing cloud to cloud flashes delivering some loud rumbles of thunder. 0.5mm sized hail fell from the cloud delivering a total of 4.5mm for today.
Sadly, I never heard any 'dump' thunder which is my favourite kind of thunder after a long roll. The storm moved north just before 4am, and no more thunder was heard from here although there could of been a few distant rumbles and flashes as it moved north.
....anyway a fine day eventuated with strong SW winds easing by evening. 14.5C the maximum for today.
Checking the damage the hail may of caused to blossoms and a row of tulips we have got, there was nothing, thank goodness.
![Smile :smile:](./images/smilies/icon_smile.gif)
EDIT: Some hail on the front steps from the thunderstorm
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Last edited by NZ Thunderstorm Soc on Sun 01/10/2023 18:44, edited 1 time in total.
JohnGaul
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Re: General September Weather
Nice to finally wake up to relatively calmer winds and sunshine after all the strong winds we've had over the last few days.
Here's MetService's peak gusts (km/h) for Auckland yesterday:
96 .. Whangaparaoa
91 .. Auckland Aero
89 .. Ardmore Aero
85 .. Whenuapai Aero
Here's MetService's peak gusts (km/h) for Auckland yesterday:
96 .. Whangaparaoa
91 .. Auckland Aero
89 .. Ardmore Aero
85 .. Whenuapai Aero
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Re: General September Weather
Figures from Geraldine for September.
Max Temp - 28.1C on Wednesday the 20th
Lowest temp - minus 0.6C on Tuesday the 26th
Lowest max - 11C on Friday the 22nd
Highest min - 11C on Friday the 22nd
Rainfall - 69.9mm over 7 days.
5 frosts and 2 thunder days.
Max Temp - 28.1C on Wednesday the 20th
Lowest temp - minus 0.6C on Tuesday the 26th
Lowest max - 11C on Friday the 22nd
Highest min - 11C on Friday the 22nd
Rainfall - 69.9mm over 7 days.
5 frosts and 2 thunder days.
JohnGaul
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Re: General September Weather
Despite being a typically volatile spring month, temps overall rebounded during September after an anomalously cool August, in what could possibly be NZ's warmest September on record.
Preliminary stats for the main centres:
Preliminary stats for the main centres:
Code: Select all
Sep 2023 Average Temps, Rainfall, Sunshine and departures from 1991-2020 normals ℅ NIWA
Site T-max °C T-min °C T-mean °C Rain mm Sun hrs
Auckland, Mangere 17.5 +1.1 10.5 +0.9 14.0 +1.0 128 118% 178 112%
Tauranga Aero 17.5 +0.8 10.3 +2.0 13.9 +1.4 111 129%
Hamilton Aero 17.5 +1.2 7.8 +1.3 12.7 +1.3 142 136% 173 117%
Wellington, Kelburn 14.5 +0.9 9.3 +1.2 11.9 +1.0 150 139% 164 99%
Christchurch Aero 16.1 +1.3 5.5 +1.6 10.8 +1.5 74 176% 177 105%
Dunedin, Musselburgh 15.0 +1.7 6.8 +1.1 10.9 +1.4 58 124% 164 111%
Greymouth Aero 15.5 +1.9 7.7 +1.0 11.6 +1.4 188 93% 135 95%
* Hamilton sunshine from Ruakura
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Re: General September Weather
Warmest September in my records with a mean temp of 13.6C. Tied for wettest September with 2016, a total of 172mm locally.
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Re: General September Weather
stats for Medbury-
Rainfall - 82.4mm
max temp - 21.1deg 9th
low -0.9 deg 16th
lowest max temp 7.6deg 27th
highest low temp 13.2deg 21st
Three mornings of subzero temps
One day of thunder heard.
Rainfall - 82.4mm
max temp - 21.1deg 9th
low -0.9 deg 16th
lowest max temp 7.6deg 27th
highest low temp 13.2deg 21st
Three mornings of subzero temps
One day of thunder heard.
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Re: General September Weather
Here's how the September 2023 main-centre mean-temps stacked up against their historical records:
Code: Select all
Site Rank Began
Tauranga Aero Warmest 1913
Hamilton, Ruakura Warmest 1921
Hamilton Aero Equal Warmest 1971
Auckland Aero Equal Warmest 1962
Auckland, Mangere 2nd Equal Warmest 1959
Dunedin, Musselburgh 3rd Warmest 1947
Wellington, Kelburn 3rd Equal Warmest 1928
Christchurch Aero 4th Warmest 1953
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Re: General September Weather
NIWA's just released Climate Summary confirms that this September was indeed NZ's warmest September on record.
(previous record was 1988)
(previous record was 1988)
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Re: General September Weather
Alexandra
Rainfall - 51.2mm over 5 days
max temp - 25.1deg 20th
low -2.4 deg 26th
lowest max temp 8.6 deg 22nd
highest low temp 12.4 deg 20th
6x mornings of subzero temps
One day of thunder heard.
Rainfall - 51.2mm over 5 days
max temp - 25.1deg 20th
low -2.4 deg 26th
lowest max temp 8.6 deg 22nd
highest low temp 12.4 deg 20th
6x mornings of subzero temps
One day of thunder heard.