North Island

Forecast DateFar North
NAL
AK
NIMT, ECMT, Auckland
BOP
ECMT
West NI
NIMT, MNPL
East NI
PNGL, WRAPA
WN
NIMT, WRAPA, Wellington
See forecast details below
Sun 29 Dec
No significant weather.
Mon 30 Dec
Conference Call
Areas of rain spreads over the North Island during the day. 1. [Risk of thunderstorms/downpours pm/early evening hours for East NI , esp. south of Napier with some places getting 50+ mm in a short period.] 2. Rain with a few thunderstorms/downpours for western areas. Totals reach 25 mm in some places south of about Taranaki/Central Plateau, including WN. 3. Southerly wind gusts 100 km/h develop WN in evening.
Tue 31 Dec
Conference Call
More rain over the North Island, but mainly in the south and east. 1. Totals reach 25 mm in places for WN and East NI. [esp. the Wairoa area where totals likely reach 50 mm]. Some other places about and south of a line Taranaki to Central Plateau also reach 25 mm. 2. Southerly wind gusts 100+ km/h for WN and south Taranaki coast from about Whanganui to Waverley ease from later pm. 3. Risk of southerly wind gusts 80+ km/h for all other areas for a time during the day.
Wed 1 Jan
No significant weather.
Thu 2 Jan
No significant weather.

South Island

Forecast DateWest Coast
MIDLND, SNL, HKTKA
Upper SI
MNL, MIDLND, Christchurch
Lower SI
MSL
See forecast details below
Sun 29 Dec
Areas of rain and with a few thunderstorms/downpours develop for West Coast and south parts of MSL. Totals reach 25+ mm in places on Midland line west of Arthurs Pass, for the Hokitika line, and some parts of the MSL south of about Oamaru.
Mon 30 Dec
1. Rain picks up for the MNL with 25+ mm in places north of about Amberley, esp. for the Kaikoura Coast area. 2. Risk of scattered thunderstorms/downpours for inland West Coast with a quick 25+ mm.
Tue 31 Dec
1. Showery windy conditions on the MNL. Southwest wind gusts 80+ km/h for Lyttleton and Kaikoura Coast areas. 2. Southeast waves/swell reach 3 m for a time during morning for Kaikoura Coast area, esp. north coast. High tide is around 6 am and 6 pm.
Wed 1 Jan
No significant weather.
Thu 2 Jan
No significant weather.

Colour Key

Non-impacting weather expected
Active weather - but with minimal impact expected (see comments). Note that -active weather- is based on 24-hour rainfall totals >25 mm, wind gusts >80 km/h, and snow accumulation >5 cm etc.
Significant weather expected - potential for impacts on network at some locations (see underlined comments). Additional email updates to be issued with focus on high risk areas.
Significant weather expected - potential for widespread impacts on network (see underlined bold comments). Additional email updates to be issued with focus on high risk areas.