Re: General September Weather
Posted: Sun 26/09/2021 18:23
13mm here mostly this morning
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Sent from my SM-A226B using Tapatalk
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Re: General September Weather
Posted: Sun 26/09/2021 19:57
Snow flurries in Oxford earlier today, about 230m. Much lower I think than MS had forcasted
Re: General September Weather
Posted: Sun 26/09/2021 21:03
NZ Thunderstorm Soc wrote: ↑Sun 26/09/2021 18:19Yes, Ben, snow low down on Mt. Peel and the 4 Peaks. Photos later.
Re: General September Weather
Posted: Sun 26/09/2021 22:32
A cold day here with lots of grey skies and the occasional light rain/drizzle with a light south to easterly.
I couldn't understand why the forecasts were so persistent with thunderstorms and hail, when, with today's weather conditions, thunderstorm activity was obviously not possible?
Were there any thunderstorms around?
Skies were clear here this evening, now it is coming onto rain. It this was 1pm this afternoon, maybe it would be a different story ?
Today's maximum was just 8.6C. 2.4mm of precipitation for today.
I couldn't understand why the forecasts were so persistent with thunderstorms and hail, when, with today's weather conditions, thunderstorm activity was obviously not possible?
Were there any thunderstorms around?
Skies were clear here this evening, now it is coming onto rain. It this was 1pm this afternoon, maybe it would be a different story ?
Today's maximum was just 8.6C. 2.4mm of precipitation for today.
Re: General September Weather
Posted: Sun 26/09/2021 22:42
Hi John, never looked thundery today, timing was off and there was a cap where the atmosphere was to stable. Hence the cloud cover early morning.NZ Thunderstorm Soc wrote: ↑Sun 26/09/2021 22:32 I couldn't understand why the forecasts were so persistent with thunderstorms and hail, when, with today's weather conditions, thunderstorm activity was obviously not possible?
Were there any thunderstorms around?
Canterbury thunderstorm season doesn't normally get firing until later in October
Re: General September Weather
Posted: Mon 27/09/2021 00:09
I agree. I do tend that MS and other forecasters do tend to over-forecast thunderstorms in their forecasts, with terms like 'thundery showers' and 'heavy falls'. when you only get a few spits or drizzlemikestormchaser wrote: ↑Sun 26/09/2021 22:42 Canterbury thunderstorm season doesn't normally get firing until later in October
Yes. I, traditionally have used the Canterbury Thunderstorm Season to be from 1201am Oct the first to 1159pm of 31st of March.
but there can be thunderstorm activity before and after these dates.
Re: General September Weather
Posted: Mon 27/09/2021 09:23
Work colleague was in Kaikoura, and they had thunder yesterday
Re: General September Weather
Posted: Mon 27/09/2021 11:40
Incase anyone doesn't check the off topic board, a Canterbury Meet has been organised for this weekend.
viewtopic.php?f=10&t=6316
viewtopic.php?f=10&t=6316
Re: General September Weather
Posted: Mon 27/09/2021 14:38
Today looks more thundery than yesterday as there are lots of fluffy but weak Cu's going up. Shame there is no 'oomph'
Re: General September Weather
Posted: Mon 27/09/2021 17:56
We had distant thunderstorms just after midnight Sunday morning on the SW centred in Te Wae Wae Bay
Re: General September Weather
Posted: Mon 27/09/2021 17:58
We have had 140mm so far this month .Wet and a few days to go
Re: General September Weather
Posted: Mon 27/09/2021 23:40
Some rain overnight but clearing away this morning but with lots of unstable Cu cloud around mostly weak humulus, however looking more 'thundery' as compared to yesterday's useless weather/forecasting? Cloud clearing away later this afternoon.
Today's maximum was 13C in sunny conditions this afternoon, with a cool NE.
Today's maximum was 13C in sunny conditions this afternoon, with a cool NE.
Re: General September Weather
Posted: Tue 28/09/2021 07:46
Not many cold mornings here this month, 5.1C today being the lowest of the whole month
Re: General September Weather
Posted: Tue 28/09/2021 09:27
There is Tasman Sea low pressure modelled for next week, would mean a warmer week next week.
I see the thunderstorm season kicks off over eastern Australia this week.
I see the thunderstorm season kicks off over eastern Australia this week.
Re: General September Weather
Posted: Tue 28/09/2021 23:22
After a frosty start, a nearly total blue dome day except for some cloud along the foothill.
17C for today. Light NE.
17C for today. Light NE.
Re: General September Weather
Posted: Wed 29/09/2021 20:58
Looks like Dunedin just copped a decent storm, bit more vigourous that was forecast. MS have done a bit of "nowcasting" to cover it
Re: General September Weather
Posted: Wed 29/09/2021 22:53
Re the above, does look abit stormy down there. Nothing on the Blitz?
Might move north but doubt it, as it looked like a west to east flow.
Anyway, today was a pleasant day after a light air frost, with warm westerlies blowing bringing the max temperature up to 22.2C here.
Clouded this evening with a light SE.
Might move north but doubt it, as it looked like a west to east flow.
Anyway, today was a pleasant day after a light air frost, with warm westerlies blowing bringing the max temperature up to 22.2C here.
Clouded this evening with a light SE.
Re: General September Weather
Posted: Thu 30/09/2021 22:16
A bit of drizzle overnight but clearing away from morning to be a fine day with NE winds to end off the month.
Today's maximum was 16.3C.
Today's maximum was 16.3C.
Re: General September Weather
Posted: Fri 01/10/2021 07:07
September 2021 stats locally –
Mean daily temp = 13.3c ( -0.2c 2018/20 average)
Rainfall = 132.4mm (+29mm 2001/2020 average)
Prevailing wind SW
1 thunder day. (same as ave 1.0)
Humidity 78.6% (+1.6% average)
YTD
Daily temp 15.98c , -0.15c average (2018/2020)
Rainfall 674mm , -235mm average (2001/2020)
Mean daily temp = 13.3c ( -0.2c 2018/20 average)
Rainfall = 132.4mm (+29mm 2001/2020 average)
Prevailing wind SW
1 thunder day. (same as ave 1.0)
Humidity 78.6% (+1.6% average)
YTD
Daily temp 15.98c , -0.15c average (2018/2020)
Rainfall 674mm , -235mm average (2001/2020)
Re: General September Weather
Posted: Fri 01/10/2021 09:44
my (auto created) report
https://www.weather-display.com/windy/g ... 92021.html
https://www.weather-display.com/windy/g ... 92021.html
Re: General September Weather
Posted: Fri 01/10/2021 09:56
Howick - September 2021
Summary
Dry first half and wet second half, resulting in the wettest month of the year to date. Temperatures near average.
Stats
Mean temp = 12.8C (+0.1C)
Mean daily high = 17.1C (+0.1C)
Mean daily low = 9.1C (+0.1C)
Highest temp = 19.7C (on day 25)
Lowest temp = 5.1C (on day 28)
Total rainfall= 136mm (+15mm, or 112% of average)
YTD rainfall = 821mm (-161mm, or 84% of average)
Summary
Dry first half and wet second half, resulting in the wettest month of the year to date. Temperatures near average.
Stats
Mean temp = 12.8C (+0.1C)
Mean daily high = 17.1C (+0.1C)
Mean daily low = 9.1C (+0.1C)
Highest temp = 19.7C (on day 25)
Lowest temp = 5.1C (on day 28)
Total rainfall= 136mm (+15mm, or 112% of average)
YTD rainfall = 821mm (-161mm, or 84% of average)
Re: General September Weather
Posted: Fri 01/10/2021 10:07
that nice northerly rain events has meant Aucklands water storage is now at 85% (compared to average of 90%)
https://www.watercare.co.nz/Water-and-w ... RZEALw_wcB
plus other things like restrictions still on water use and more water being used from the Waikato have all helped
that is good news , I bet there are people sighing a sigh of relief
and with La Nina, the rest of spring /summer should in theory not see any major drought periods overall hopefully (there will always be dry periods)
https://www.watercare.co.nz/Water-and-w ... RZEALw_wcB
plus other things like restrictions still on water use and more water being used from the Waikato have all helped
that is good news , I bet there are people sighing a sigh of relief
and with La Nina, the rest of spring /summer should in theory not see any major drought periods overall hopefully (there will always be dry periods)
Re: General September Weather
Posted: Sat 02/10/2021 07:32
Temps fairly close to normal overall for September 2021. It was also a mostly wet month, apart from Canterbury and North Taranaki/King Country, although generally fairly sunny overall, except for Northland and Stewart Island.
Preliminary September 2021 figures for the main centres:
Preliminary September 2021 figures for the main centres:
Code: Select all
Sep 2021 Average Temps, Rainfall, Sunshine and departures from 1981-2010 normals ℅ NIWA
Site T-max °C T-min °C T-mean °C Rain mm Sun hrs
Auckland, Mangere 16.7 +0.4 9.7 +0.1 13.2 +0.2 124 121% 167 111%
Auckland Aero 16.9 +0.5 9.7 0.0 13.3 +0.3 112 124%
Tauranga Aero 16.7 +0.1 8.7 +0.4 12.7 +0.3 110 130% n/a n/a
Hamilton Aero 15.9 -0.4 6.1 -0.1 11.0 -0.3 178 176%
Hamilton, Ruakura 16.4 0.0 6.3 -0.4 11.4 -0.1 148 161% 146 100%
Wellington, Kelburn 13.5 -0.2 8.0 +0.1 10.8 0.0 127 129% 173 106%
Christchurch Aero 15.6 +0.8 3.1 -0.8 9.3 -0.1 39 96% 231 136%
Dunedin, Musselburgh 14.7 +1.5 5.6 -0.3 10.1 +0.6 46 96% 212 157%
Greymouth Aero 14.1 0.0 6.2 -0.4 10.1 -0.2 254 122% 140 106%
Re: General September Weather
Posted: Sat 02/10/2021 09:27
Auckland had a warmer June, the average June max at Mangere was 16.9C,min 10C, Motat 17.2C,9.9C.
Re: General September Weather
Posted: Sat 02/10/2021 09:31
October looks to have warmer northerly quarter flows to start off with for the next 10 days at least
running out of time for it to be the 'coldest year in decades' that some people thought?
running out of time for it to be the 'coldest year in decades' that some people thought?