NZ Weather Forum

Nev wrote: ↑Wed 17/08/2022 13:55 Currently 22.7C at Culverden according to MS...

Can beleive that, bright and mild here in ChCh now too, 18 degrees

Nev wrote: ↑Wed 17/08/2022 13:55 Currently 22.7C at Culverden according to MS...

Managed to reach 21.9deg here

NIWA Waiau CWS was on 23.9deg, but I dont think its totally accurate given it location near buildings and concrete pathways

Big problems now developing in the Nelson Tasman region. State of emergency declared there too.

Nelson Region now under a red warning

asuth wrote: ↑Wed 17/08/2022 10:56 We are in Nelson and it has been raining heavily all morning. Our lawn is a lake and there is already surface flooding around the city. With another 300+mm or rain still to come over the next few days according to many models, I am baffled as to why Nelson/Tasman hasn’t been issued a red warning.

Yes a RED warning has been issued in your region now.

the latest satellite image is scary
lots of rain heading for the upper North Island now
and still more to come for areas that have already had heaps

A windy night here and we are fairly sheltered to the NE at my place, light to mod rain, currently 16C, dew point 15C.

we are relatively sheltered from the NE wind here but I hear from locals who arent that it was bad
the models show it could strengthen again this afternoon
I see that the Waikato is warmer than Auckland area currently
so there must be a small Fohn effect downwind of the coromandel range (0.5c)

20mm of light to moderate rain so far. Really don’t see 100mm+ occurring but let’s see

Really don’t see 100mm+ occurring but let’s see

note that is for the entire rain period, i.,e 24 hours still to go
and the rain radar shows still plenty of more rain moving south
the temperature is increasing, so that means heavy rain potential
so I suspect this afternoon /tonight it will get really going
(actually heavier here now , and across the Auckland area too)

Just 12mm so far in my manual gauge. NE winds have been relentless here though. I think Tiritiri has been gusting to 100 km/h.

Aug Tmin records trumped again for the 24 hrs to 9am this morn at Auckland Aero, Mangere and Whangarei City....
https://twitter.com/NiwaWeather/status/ ... PGoKYrAAAA

Here's a comparison of the flooding on Avon Tce in Nelson with a Google Street view of the same place under normal conditions. Holy hell.

harleyb wrote: ↑Thu 18/08/2022 10:56 Here's a comparison of the flooding on Avon Tce in Nelson with a Google Street view of the same place under normal conditions. Holy hell.

image.png

Holy moly that’s crazy! The rain is still thumping down there too with lots more to come.

Exposed Keikeri, Northland is up to 98mm for the day so far, orographic enhancement of the rain there as well.

Gauge at Matauri Bay, (Northland) currently at 145mm for last 24Hrs (3pm-3pm), not so much intense rain rates, just relentless.
Touwai AWS currently matching it at 143mm/24Hr

Aorere and Buckland Peaks gauges have tipped out over 600mm so far to lead the pack in Buller

600mm at Cropp and Tuke in Westland

Nelson/ Tasman 762 Anatoki, 540mm Takaka (Canaan)

Much more to come too it seems

I think Buller and Westland have 'dodged the bullet" with this event with Nelson city copping the most of it?

Low cloud / fog settling in here now.

Now 24 Hours of continuous rain. Another 12 hours at least to go. However only 26mm in that time. Light but relentless rain.


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Up to 40mm here for this event so far, mostly light rain since midday. New August station records today for highest daily minimum (15.7C) and highest daily mean (16.5C)

17.8 degrees in the middle of the night in august with rain falling. Crazy!!!


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jamie wrote: ↑Fri 19/08/2022 02:25 17.8 degrees in the middle of the night in august with rain falling. Crazy!!!


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Crazy alright,its was19deg here at 2.30am, still winter

David wrote: ↑Thu 18/08/2022 23:02 Up to 40mm here for this event so far, mostly light rain since midday. New August station records today for highest daily minimum (15.7C) and highest daily mean (16.5C)

I see Ricky's Grey Lynn PWS also had a Tmin of 15.6C yesterday and 15.0C the day before, beating it's previous highest Aug Tmin over the last 20 years of 14.3C in 2010. Today might also be Auckland and Whangarei's 3rd consecutive day of record Aug Tmins.

Just 26mm here for this event so far. MS had gusts to 96 km/h at Whangaparaoa yesterday arvo.

I see Kerikeri Aero also recorded 161mm yesterday, on top of 45mm the day before.

90mm at Woodbourne for this event so far, 50mm from PWS around Blenheim so we were right on the edge of the rain bands.
GFS predicting another 60mm over weekend here and yet another rain event on Thursday