General September Weather

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NZstorm
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General September Weather

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NIWA predicting a colder than average September with disturbed weather.

Caused by the stratospheric event discussed on the other thread.
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Richard
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Re: General September Weather

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Should be an interesting month alright,
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Re: General September Weather

Unread post by NZ Thunderstorm Soc »

NZstorm wrote: Sat 24/08/2019 08:23 NIWA predicting a colder than average September with disturbed weather.
Caused by the stratospheric event discussed on the other thread.
Yes, there some mention of this on the wireless this afternoon.
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Re: General September Weather

Unread post by Dean. »

22 degrees at the moment for Ashburton after a predicted high of 17.Much warmer inland than the more coastal towns.
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Re: General September Weather

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17.7C at Thornbury currenty
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Re: General September Weather

Unread post by Chris W »

21.4 in Chch, above both the Metservice (18) and NIWA (20) predictions. A stunning weekend of weather.
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Re: General September Weather

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22 degrees in some parts. Felt almost like summer rather than first day of spring
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Re: General September Weather

Unread post by NZ Thunderstorm Soc »

Topped 20C here.
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Re: General September Weather

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Yes a lovely day alright, 22.8 here, but I did drive through a pocket of 24deg near the Hurunui pub
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Re: General September Weather

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Yes a lovely day alright, 22.8 here, but I did drive through a pocket of 24deg near the Hurunui pub
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Re: General September Weather

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Richard wrote: Sun 01/09/2019 18:56 Yes a lovely day alright, 22.8 here, but I did drive through a pocket of 24deg near the Hurunui pub
Tucked in beside the hill nice spot
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Re: General September Weather

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Dean. wrote: Sun 01/09/2019 20:04
Richard wrote: Sun 01/09/2019 18:56 Yes a lovely day alright, 22.8 here, but I did drive through a pocket of 24deg near the Hurunui pub
Tucked in beside the hill nice spot
Perfect reason to pull in and part up out the front with a shandy or two
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Re: General September Weather

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A low pressure system developing to our north will give the North Island a wet week. And localised downpours/thunder developing in the far north later tomorrow or early Wednesday in areas exposed to NE.
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Re: General September Weather

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windy and rainy here. weried that the rains coming from the east. i see from rader. the sub tropical low has set in. after yesterday temperatures here went 20 degrees celcius. bit cooler today.
Last edited by tornado on Tue 03/09/2019 19:58, edited 1 time in total.
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Re: General September Weather

Unread post by Bradley »

Tonight’s run of EC now predicting 2-4cm of snow to sea level in Canterbury Sunday into Monday, kinda snuck up on it this one with all the SSW talk!
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Re: General September Weather

Unread post by Chris W »

The weekend has been looking cold for a few days, Ben Noll and Chris Brandolino from NIWA we’re mentioning that in their outlook. Bitterly cold air coming up from due south.
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Re: General September Weather

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tommorow afternoon metservice has us in the moderate risk that goes from northland to waikato . in the afternoon. and the low pressure spreading. maybe a isolated thunderstorm?
Last edited by tornado on Fri 20/12/2019 21:20, edited 1 time in total.
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Re: General September Weather

Unread post by TonyT »

Bradley wrote: Tue 03/09/2019 19:55 Tonight’s run of EC now predicting 2-4cm of snow to sea level in Canterbury Sunday into Monday, kinda snuck up on it this one with all the SSW talk!
this is the first ECMWF run to have this outcome. We need to keep tracking over the next few runs to see if there is any constency there, or just a rogue model run. Only a few of the ensemble members are currently showing snow to that level.
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Re: General September Weather

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20mm in my rain gauge yesterday. Very mild night with 14C min
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Re: General September Weather

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24mm so far for here.
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Re: General September Weather

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A drizzly start here with a very low cloud base, so low the tops of the pylons and in the cloud
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Re: General September Weather

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a few trees blew down last night from the wind
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Re: General September Weather

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Kataia had a thunderstorm very early this morning with the PWS there getting over 25mm in an hour.

Looks like a trough line will be coming south later today but at this stage I think it is a just low thunder risk in Auckland. But I will be keeping an eye out.
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Re: General September Weather

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NZstorm wrote: Wed 04/09/2019 07:39 Kataia had a thunderstorm very early this morning with the PWS there getting over 25mm in an hour.

Looks like a trough line will be coming south later today but at this stage I think it is a just low thunder risk in Auckland. But I will be keeping an eye out.
metservice has it moderate. but i will keeping a eye out too. especially in the afternoon. yes i saw that storm on radar. did weaken slightly when it hit land.
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Re: General September Weather

Unread post by Cyclone Tracy »

Currently 995.1 hPa here. Interestingly the top of the NI at Cape Reinga is down to 985 hPa on the MS reading, that is 3 hPa lower than EC and 5 lower than the GFS 18Z projections.

edit: the low's circulation is moving slightly offshore on the west coast. Seems like it currently is deeper than expected. Might mean a tighter gradient for tomorrow night's south westerly wrap around into Auckland.
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