A recent spell of warm weather across parts of the South Island is expected to be brief, with a significant temperature drop forecast for the region’s east coast, according to MetService.
Temperature Plunge Expected
MetService meteorologist Katie Lyons explained to 1News that a cold front originating in the Southern Ocean is moving northward and is the driving force behind the changing conditions. “It’ll move up and over the rest of the South Island today and tonight. That brings rain, but also in behind it brings plummeting temperatures,” Lyons said.
A yellow heavy rain watch is currently in effect for Fiordland, north of Dusky Sound, until 9pm tonight and for Southland until 7pm. Forecasted highs for Monday show a marked decrease, with Blenheim expected to reach 17C and Christchurch 15C.
Impact on Other Areas
Invercargill and Timaru are also expected to see highs “around the 14C or 15C mark.” The colder temperatures are anticipated to last for approximately two to three days before returning to more typical autumn averages in the low 20s.
The cold front may also affect the east coast of the North Island, including Napier, Hastings, and Gisborne, though with reduced intensity. Lyons noted that cold fronts from the Southern Ocean typically “lose a bit of steam” as they move northward.
Frequently Asked Questions
What is causing the temperature change?
A cold front from the Southern Ocean moving northward is driving the temperature change.
Where are heavy rain watches in effect?
A yellow heavy rain watch was issued for Fiordland about and north of Dusky Sound until 9pm tonight, and Southland until 7pm.
How long will the colder temperatures last?
The colder temperatures are expected to last for about two to three days.
How will you prepare for the changing weather conditions in your area?
