The heaviest rainfall is forecast for the ranges of Westland, where a further 80-120mm of rain is possible, however, Heavy Rain Warnings have also been issued for the headwaters of the Canterbury and Otago rivers. A Heavy Rain Watch has also been issued for Buller and the Nelson Lakes.
It is a quieter day weatherwise for the North Island today (9 March) but rain and thunderstorms are forecast to push northwards onto Te Ika-a-Maui, the North Island, for Friday. “The rainfall shifts across Cook Strait for Friday as the front moves northward. Rain is likely to be heaviest in the west but should continue to pull away to the north by the end of the day” says Law.
Heavy Rain Watches have been issued for parts of Northland and the Bay of Plenty, Taranaki and the Tararua Range.
A strong wind watch has also been issued for Wellington and southern parts of Wairarapa.
Once the active weather of the week clears away overnight on Friday the forecast for the weekend is for much more settled weather.
Understanding our Severe Weather Watches and Warnings
Outlooks are about looking ahead:
To provide advanced information on possible future Watches and/or Warnings
Issued routinely once or twice a day
Watches are about being alert:
When severe weather is possible, but not sufficiently imminent or certain for a warning to be issued
Typically issued 1 – 3 days in advance of potential severe weather.
During a Watch: Stay alert
Orange Warnings are about taking action:
When severe weather is imminent or is occurring
Typically issued 1 – 3 days in advance of potential severe weather
In the event of an Orange Warning: Take action
Red Warnings are about taking immediate action:
When extremely severe weather is imminent or is occurring
Issued when an event is expected to be among the worst that we get – it will have significant impact and it is possible that a lot of people will be affected
In the event of a Red Warning: Act now!