Heavy rain in the north 1-2 January

David · Unread post by **David** » Thu 31/12/2015 10:17

Time for a new thread for the upcoming heavy rain event! Rain looks to be starting late tonight in Northland and sometime tomorrow morning in Auckland. Looking like Eastern Northland and Coromandel will bear the brunt of the rain but GFS has some high totals for us as well

David · Unread post by **David** » Thu 31/12/2015 10:18

GFS 72hr rain accumulation chart

jamie · Unread post by **jamie** » Thu 31/12/2015 10:45

I don't normally fare too well in these events. Auckland can have 100mm and coromandel get a spanking but we get like 10mm. I'll hope for the best but expect much less than GFS is saying in this case.

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

Civil Defence notification re North Auckland: http://cdem.co/viewer.jsp?token=ZJS4U2H5

David · Unread post by **David** » Fri 01/01/2016 08:33

Updated weather warning now includes whole Auckland area.

David · Unread post by **David** » Fri 01/01/2016 14:52

20mm so far for Howick, a dry break currently. Looks like some heavy falls coming in a few hours

David · Unread post by **David** » Fri 01/01/2016 19:13

Hasn't been as wet as forecast so far, not much rain around since 2pm. Still, better than nothing!

CbFan · Unread post by **CbFan** » Fri 01/01/2016 21:37

Matauri Bay had 43mm to 0900 today, and another 37mm from 0900 to 1500.
80mm total to 3pm

Looks like the second round will skim to the east of the Far North.

littleheaven · Unread post by **littleheaven** » Fri 01/01/2016 23:21

Very gusty in Glenfield. Our power went out about 15 minutes ago. Hooray for solar system with backup battery. Have enough to keep the lights, fridge and modem running for 3 hours.

Nev · Unread post by **Nev** » Sat 02/01/2016 06:32

27mm here since 8am yesterday (similar to David and Ricky at Howick and Grey Lynn).

Below are some of yesterday's other totals from MetService:

Code: Select all

Rainfall (mm)         Jan 01
  
Kaikohe                 72
Whitianga Airport       71
Kerikeri Airport        65
Whangarei Airport       64
Purerua                 56   
Golden Valley           50   
Whangaparaoa            31
Mokohinau Is.           27   
Cape Reinga             17   
Auckland Airport        14
Tauranga Airport        12
Hicks Bay               11   
Paeroa                  10
Hamilton Airport         1
Whakatane Airport        1
Rotorua Airport          1

Note that to 6am this morn, Whangarei has a further 8mm, Kerikeri 5mm and most others about 1-4mm.

treetop · Unread post by **treetop** » Sat 02/01/2016 08:06

Colder than normal sea temps may be weakening the system as it moves southeast. Was expecting a lot more rain.Tomorrow looks like a heavier burst with the wind change pushing through.Not over yet today, all soaking in which is good for farmers.

spwill · Unread post by **spwill** » Sat 02/01/2016 08:51

Very high dewpoint temperatures tomorrow should give a better chance of localised heavy falls particularly where some heating can occur

Tornado Tim · Unread post by **Tornado Tim** » Sat 02/01/2016 11:39

Hardly any rain from this system around central Waikato so far. Only 3.0mm so far. Temps a touch cool at around 16-17, most probably limiting convective potential and resultant rain.

David · Unread post by **David** » Sat 02/01/2016 13:43

Clearly something has weakened it compared to what the models were showing. Only very light rain today, no heavy rain to be seen on the radar at all.

Nev · Unread post by **Nev** » Sun 03/01/2016 07:19

Up to 47mm here so far in the last 36 hours.

Below are some of the higher rainfall totals for the first 48 hours of 2016 ℅ Northland Regional Council and MetService:

Code: Select all

Rainfall (mm)        Jan 1-2

NRC
Oakura Bay             192
Ngunguru               183
Whangaroa              153
Whakapara              148
Waitangi               138
Glenbervie Forest      137

MS
Whitianga Airport      107
Kerikeri Airport       106
Kaikohe                100
Golden Valley           99
Whangarei Airport       89
Purerua                 84
Mokohinau Is.           63
Whangaparaoa            52
Cape Reinga             50
Tauranga Airport        46
Paeroa                  33
Auckland Airport        27
Hicks Bay               21

Note that in the 24 hrs to 6am this morning, Westport Aero received about 80mm and Hokitika 65mm.

jamie · Unread post by **jamie** » Sun 03/01/2016 07:58

I'm currently sitting on 41mm from this. A nice drop. Pity it didn't come 2-3 weeks ago. Very little grass growth the past 2 weeks. This rain should turn the hills back green.

David · Unread post by **David** » Sun 03/01/2016 08:26

54mm total here, of mostly light but consistent rain, spread across 48 hours.

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