General December Weather

NZstorm · Unread post by **NZstorm** » Tue 29/12/2015 08:24

jamie wrote:I like what GFS has done with the moisture for tomorrow. Brought it down towards Taupo where I will be.

As for the 3rd......wow!

Yes, the moisture looks good tomorrow with the 850mb dewpoint 10C. But the lapse rates look rather weak on the 12Z run, so looking more like heavy rain showers and just a little bit of lightning.

spwill · Unread post by **spwill** » Tue 29/12/2015 08:59

Looking like a humid trough to start 2016, back to anticyclonic from the about the 4th.
Showers not ideal for the campers but it will be warm, 1am temps look warm in the north.

NZstorm · Unread post by **NZstorm** » Tue 29/12/2015 10:14

spwill wrote: Showers not ideal for the campers but it will be warm,

Significant warm advection looking more likely so rain will be torrential for the campers!

Richard · Unread post by **Richard** » Tue 29/12/2015 10:33

Looking likely that there should be some useful rain for CHCH north too. Hopefully the models stay on track for the sake of many of the sad looking trees in this area, even a number of pines are looking half dead.

TonyT · Unread post by **TonyT** » Tue 29/12/2015 11:06

Richard wrote:Looking likely that there should be some useful rain for CHCH north too. Hopefully the models stay on track for the sake of many of the sad looking trees in this area, even a number of pines are looking half dead.

Definitely worth keeping an eye on this one.

David · Unread post by **David** » Tue 29/12/2015 14:02

Another beautiful day today with pleasant 24C. Looking like some very decent rain possible in the new year!

Captain Salty · Unread post by **Captain Salty** » Tue 29/12/2015 19:47

looks like maybe a CB near Lewis Pass tonight

201512290530.png

NZstorm · Unread post by **NZstorm** » Tue 29/12/2015 20:13

Tracker showing lightning around Lewis Pass.

The convergence over the North Island tomorrow pm looks to be across the Hunuas (east Auckland). So maybe a cb close to Auckland tomorrow.

Orion · Unread post by **Orion** » Tue 29/12/2015 20:14

I observed contrails in the sky here this afternoon, often indicates colder weather coming within a day or so.

NZ Thunderstorm Soc · Tue 29/12/2015 20:35

Orion wrote:I observed contrails in the sky here this afternoon, often indicates colder weather coming within a day or so.

So did I

One moved from the west and expanded.
The other moved slowly towards the west.
Both in a north to south direction, possibly at different levels.

Bradley · Unread post by **Bradley** » Wed 30/12/2015 07:26

EC still keen on around 50mm for mid and north Canterbury for the weekend, I have everything crossed that it happens, boy it was shocking to see how dry the countryside was around the Culverden area the other day...

Richard · Unread post by **Richard** » Wed 30/12/2015 07:46

Yes its getting bad alright Bradley. I'm down to 70cm in my well and dropping fast

David · Unread post by **David** » Wed 30/12/2015 08:09

Latest GFS showing over 100mm rain here from the upcoming weather system. Starting right about the turn of the new year...

spwill · Unread post by **spwill** » Wed 30/12/2015 08:25

It is starting to get dry here now with only 25mm so far for December. I see Whangaporoa got 58.6mm on Xmas Eve.

NZstorm · Unread post by **NZstorm** » Wed 30/12/2015 08:42

Just about time to kick off a thread on the new years storm. Looking like significant rain and gales for the upper half of the North Island and other parts of NZ could be affected depending on trajectory of system. 300mm not out of the question for eastern Northland and Coromandal.

Orion · Unread post by **Orion** » Wed 30/12/2015 18:07

Rain here sounding nice on the roof at present $\:D/$

NZ Thunderstorm Soc · Wed 30/12/2015 18:16

Yes, it is sad to say that the rain is falling mainly out at sea instead of inland. Shame that some sort of artificial means is needed to push the rain onshore and over places that need it

Richard · Unread post by **Richard** » Wed 30/12/2015 21:47

Certainly had no rain here and looking like there will be next to nothing this weekend as well. So ending the year with 340mm

KiwiWeather · Unread post by **KiwiWeather** » Wed 30/12/2015 23:21

NZ Thunderstorm Soc wrote:Yes, it is sad to say that the rain is falling mainly out at sea instead of inland. Shame that some sort of artificial means is needed to push the rain onshore and over places that need it

Or, some sort of artificial means has been preventing it

Bradley · Unread post by **Bradley** » Thu 31/12/2015 08:28

Richard wrote:Certainly had no rain here and looking like there will be next to nothing this weekend as well. So ending the year with 340mm

Looks like you've had 30-40mm more then Culverden Richard, do you usually get slightly more then them?

David · Unread post by **David** » Thu 31/12/2015 10:13

Wow, already 25C at 10.10am in the morning, it sure is a warm one out there today.

Richard · Unread post by **Richard** » Thu 31/12/2015 12:02

Bradley wrote:
Richard wrote:Certainly had no rain here and looking like there will be next to nothing this weekend as well. So ending the year with 340mm
Looks like you've had 30-40mm more then Culverden Richard, do you usually get slightly more then them?

That was from a woman who keeps good records, her and her hubie are 10km west of Culverden, they probably get a bit more being closer to the hills. Ive never kept records but now that there's the NIWA station on here it will all be done for me from now on $\:D/$

Just had a add up and i see Culverden in on 311mm for the year, wonder if anywhere has had lower?

David · Unread post by **David** » Thu 31/12/2015 12:41

Wow it just goes to show what a difference having good airflow makes to temperature readings. The fan in my weather station had got stuck for some reason. I just got it going again and the temperature reading has dropped 1.5 degrees in the following 7 minutes...

Nev · Unread post by **Nev** » Fri 01/01/2016 07:25

spwill wrote:It is starting to get dry here now with only 25mm so far for December. I see Whangaporoa got 58.6mm on Xmas Eve.

Yes, with half of that 59mm at Whangaporoa falling in just 1 hour, or 43mm in just 2 hours.
Whitianga Aero also recorded 59mm that day, while Akld Aero only recorded 11mm.

We managed a more steady 38mm that arvo/evening... a very timely xmas top-up (43mm for month).

trickytiger · Unread post by **trickytiger** » Fri 01/01/2016 12:54

Rangitata figures this month:

Avg temp: 14.9°C
Avg Minimum: 8.6°C
Avg Maximum: 21.8°C
Minimum temp: 4.4°C on 14th
Maximum temp: 36.4°C on 21st
Rainfall: 48mm (14 days of rain, 13mm on 16th) YTD 351.6mm (not complete as recording didn't start at start of year)

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