Home > Weather > Severe Weather
NZ Severe Weather Warnings
SEVERE WEATHER WARNING
Issued by MetService at 8:58 pm Tuesday 19-Jan-2021
Heavy rain and severe gales for parts of southern and central New Zealand
An active cold front over the west of the North Island should continue to track
northeast and away from New Zealand tonight (Tuesday) and during Wednesday
morning. The front is preceded by strong and moist northwesterlies, then
followed by an unstable west to southwest flow.
Heavy Rain Warnings remain in force for Fiordland, Westland and the headwaters
of the Canterbury lakes and rivers, while Heavy Rain Watches remain in force for
coastal Southland, the headwaters of the Otago lakes and rivers, and Buller.
Please note, the Heavy Rain Watches for northwest Nelson, the Tararua Range and
Mount Taranaki are now lifted.
In addition, Strong Wind Warnings remain in force for the Canterbury High
Country and Wairarapa, while Strong Wind Watches remain in force for the Tararua
District and Central Hawkes Bay. Please note, the Strong Wind Watch for
Fiordland and western Southland has been lifted, but a new Strong Wind Watch is
now in force for the possibility of severe gale southwesterlies in southern
Fiordland, Southland, Clutha and Dunedin. Also note, the Strong Wind Warnings
for Marlborough and Wellington are now lifted.
People are advised to keep up to date with the latest forecasts in case any
Watches are upgraded to Warnings, or further areas are added.
HEAVY RAIN WARNING - ORANGE
Heavy rain may cause streams and rivers to rise rapidly. Surface flooding and
slips are also possible and driving conditions may be hazardous.
Area: The ranges of Westland south of Otira
Valid: 19 hours from 8:00 pm Tuesday to 3:00 pm Wednesday
Forecast: Expect a further 80 to 100mm of rain to accumulate on top of what has
already fallen. Peak rates of 10 to 20mm/h, and thunderstorms likely. Freezing
level lowering to 1400 metres tonight (Tuesday).
Area: The headwaters of the Canterbury lakes and rivers
Valid: 8 hours from 8:00 pm Tuesday to 4:00 am Wednesday
Forecast: Expect a further 40 to 60mm of rain to accumulate within 15km east of
the main divide on top of what has already fallen. Peak rates of 10 to 20mm/h,
and thunderstorms likely. Freezing level lowering to 1600 metres tonight (
Valid: 31 hours from 8:00 pm Tuesday to 3:00 am Thursday
Forecast: For the area from Breaksea Sound northwards, and from 8pm Tuesday to
8am Wednesday: Expect a further 70 to 100mm of rain to accumulate on top of what
has already fallen. Peak rates of 10 to 20mm/h, with isolated thunderstorms.
For the area south of Breaksea Sound, and from 3am Wednesday to 3am Thursday:
Expect 100 to 120mm of rain to accumulate. Peak rates of 10 to 20mm/h, with
Freezing level lowering to 1300 metres this evening (Tuesday).
Change note: Have split the area in two, north and south of Breaksea Sound. The
flow should turn southwest early Wednesday morning, and the heavy rain should
become confined to south of Breaksea Sound where rainfall amounts are likely to
reach warning criteria through to early Thursday morning.
STRONG WIND WARNING - ORANGE
Strong wind gusts could damage trees, powerlines and unsecured structures.
Driving may be hazardous, especially for high-sided vehicles and motorcycles.
Area: Wairarapa excluding the Tararua District
Valid: 5 hours from 8:00 pm Tuesday to 1:00 am Wednesday
Forecast: Northwest gales are forecast to be severe at times, with gusts
reaching 130 km/h in exposed places.
Area: Canterbury High Country
Valid: 13 hours from 8:00 pm Tuesday to 9:00 am Wednesday
Forecast: Northwest gales are forecast to be severe at times in exposed places,
with gusts reaching 120 km/h.
WARNINGS NO LONGER IN FORCE
Strong wind warning lifted for: Marlborough
Strong wind warning lifted for: Wellington
An update for severe weather will be issued by: 10:00 am Wednesday 20-Jan-2021
A service provided through a contract with the Crown
(C) Copyright Meteorological Service of New Zealand Ltd 2021
Article © 2021 NZCity, Metservice, Funded by the NZ Government