Slow moving trough, prolonged rain Mid and Upper South Island 9-12 Jan

Richard · Unread post by **Richard** » Sun 07/01/2018 07:04

Models showing a trend to more dumper weather in the next week or so, that would be ideal for my location because the 21mm that fall Friday was not enough on its own to have been any use, but to have a back up rainfall mid week would great.

NZstorm · Unread post by **NZstorm** » Sun 07/01/2018 08:37

Richard wrote: ↑Sun 07/01/2018 07:04 Models showing a trend to more dumper weather in the next week or so, that would be ideal for my location because the 21mm that fall Friday was not enough on its own to have been any use, but to have a back up rainfall mid week would great.

Looking like an upper trough will be the player in the South Islands weather this week with widespread precip. Not good for sun worshippers on holiday. Maybe Central Otago will escape the worst of it. Modelling for Tuesday suggests a thunderstorm or two developing over the Otago/Canterbury foothills. Airmass is very moist.

Looking like isolated thunderstorms over the North Island this coming week too. More likely late week when they could become more widespread.

Richard · Unread post by **Richard** » Sun 07/01/2018 09:14

Yes a good sign. Poked the shovel into the ground yesterday, the 21mm had seeped about 6cm then bone dry past that, problem will be a couple hot days and that 6cm will heat up and evaporate. Soil has been getting to 26deg at 10cm depth on the hot day lately.

Razor · Unread post by **Razor** » Tue 09/01/2018 00:24

Wednesday to mid Friday looking very interesting indeed on the GFS.... at least for us in Canterbury and over the hill on the mid West Coast

Richard · Unread post by **Richard** » Tue 09/01/2018 07:13

Yes and at this time of year to fall on warm earth, great for growth.

Chris Raine · Unread post by **Chris Raine** » Tue 09/01/2018 15:01

Raining heavily on the West Coast .Runanga rain falling at17.8mm/hr

NZ Thunderstorm Soc · Tue 09/01/2018 16:56

Yes, the Blitz picked up a few strikes over earlier.

Chris Raine · Unread post by **Chris Raine** » Tue 09/01/2018 17:18

Actually now looking at the rainfall record at home after work we had rain falling at 65mm/hr at 2pm with 24mm in the gauge from 1.15 to 3.15 pm today .Another large blue blob with red bits in it to the west incoming now

Orion · Unread post by **Orion** » Tue 09/01/2018 19:20

Sudden shower of rain here at present, sounds good on the roof

NZ Thunderstorm Soc · Tue 09/01/2018 20:23

Immmmmmmmmmmmm, a few spits here

....thinking how much rain we will get here in the next coupla days?

NZstorm · Unread post by **NZstorm** » Tue 09/01/2018 20:55

Westland gets 525mm in next 7 days according to EC.

Chris Raine · Unread post by **Chris Raine** » Wed 10/01/2018 02:14

Well that is going to be interesting .Antecedent rainfall becomes problematic on the West Coast if there is an insufficient break between the rain bands to allow the streams and rivers and any surface flooding to abate

Richard · Unread post by **Richard** » Wed 10/01/2018 06:48

The weather is currently moving from the west yet its raining more on the eastern side than the West Coast, dont often see that.

Chris Raine · Unread post by **Chris Raine** » Wed 10/01/2018 08:08

Spillover rain Richard .No doubt you need it .

Richard · Unread post by **Richard** » Wed 10/01/2018 09:28

Chris Raine wrote: ↑Wed 10/01/2018 08:08 Spillover rain Richard .No doubt you need it .

Yes, the 21mm a few days back would have long gone. Its a lovely steady rain this morning. Not sure how much of this rain is spillover though, the lower cloud is streaming in from the SW

Chris Raine · Unread post by **Chris Raine** » Wed 10/01/2018 10:47

The middle cloud is tracking west to east as are the radar rain images ,Lots of interesting cloud still out there is the Tasman Sea

Razor · Unread post by **Razor** » Wed 10/01/2018 11:04

Its absolutely pelting down here in central Christchurch right now

NZstorm · Unread post by **NZstorm** » Wed 10/01/2018 13:11

latest gfs rainfall graphic for next 3 days.

Dry in the north and south, very wet in between!

Razor · Unread post by **Razor** » Wed 10/01/2018 13:33

NZstorm wrote: ↑Wed 10/01/2018 13:11 latest gfs rainfall graphic for next 3 days.

Dry in the north and south, very wet in between!

True to form, the very day a drought is declared in Westland....

Richard · Unread post by **Richard** » Wed 10/01/2018 13:37

100mm to 125mm here going by that, Tony was spot on when he reckon it was going to get wet.

Chris Raine · Unread post by **Chris Raine** » Wed 10/01/2018 13:44

I've had 41mm to 0900 this morning and probably another 10mm since .There looks like another slug of rain this evening and tomorrow morning to come yet

melja · Unread post by **melja** » Wed 10/01/2018 13:45

25mm in Rangiora today so far

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Razor · Unread post by **Razor** » Wed 10/01/2018 23:09

Tomorrow could get interesting, somewhere is going to really cop it I fear, not used to it being so mild while it rained in the South island, more a northern set up. 22mm here so far with increasing intensity

melja · Unread post by **melja** » Thu 11/01/2018 04:53

Ended up with 36mm yesterday and up to 14mm so far today with it being much heavier this morning.

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Richard · Unread post by **Richard** » Thu 11/01/2018 05:45

Had 30.2 total for this event, a useful amount now.

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Slow moving trough, prolonged rain Mid and Upper South Island 9-12 Jan

Slow moving trough, prolonged rain Mid and Upper South Island 9-12 Jan

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Re: Slow moving trough, prolonged rain Mid and Upper South Island 9-12 Jan

Re: Slow moving trough, prolonged rain Mid and Upper South Island 9-12 Jan

Re: Slow moving trough, prolonged rain Mid and Upper South Island 9-12 Jan