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Severe weather warning for central and southern NZ

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For those planning their holiday journeys leading up to Christmas, it's important to note that a severe weather warning has been issued by MetService on Sunday for parts of New Zealand.

Periods of heavy rain are expected for the west coast of the South Island and severe gale west to northwest winds for southern and central New Zealand.
“A series of fronts move over the lower South Island today through to Tuesday, bringing periods of heavy rain to the South Island West Coast and severe gale west to northwest winds to many parts of central and southern New Zealand,” says a MetService spokesperson.
Heavy rain and strong wind warnings and watches are in force for many places. People are advised to keep up to date with the latest watches and warnings in case any changes are made, or further areas are added.

Heavy rain warnings:

Heavy rain may cause streams and rivers to rise rapidly. Surface flooding and slips are also possible and driving conditions may be hazardous. Area: Westland about and south of Otira Valid: 12 hours from 12:00 pm Monday to 12:00 am Tuesday Forecast: A period of heavy rain. Expect 90 to 120mm of rain to accumulate near the ranges and 60 to 90mm nearer to the coast. Peak rates of 20 to 35mm/h near the ranges. Area: Headwaters of Canterbury lakes and rivers about and south of Arthurs Pass. Valid: 7 hours from 4:00 pm to 11:00 pm Monday Forecast: A period of heavy rain. Expect 70 to 100mmm of rain to accumulate near the main divide, and 50 to 80mm within 15km east of the main divide. Peak rates of 20 to 35mm/h near the main divide. Area: Headwaters of Otago lakes and rivers Valid: 6 hours from 12:00 pm to 6:00 pm Monday Forecast: A period of heavy rain. Expect 70 to 100mm of rain to accumulate near the main divide, and 50 to 80mm within 15km east of the main divide. Peak rates of 20 to 35mm/h near the main divide. Area: Fiordland Valid: 32 hours from 10:00 am Sunday to 6:00 pm Monday Forecast: Two periods of heavy rain are expected during today (Sunday) and Monday, with up to 220mm possible. In the 15 hours between 9am and midnight tonight: Expect 80 to 130mm of rain to accumulate. Peak rates of 15 to 25mm/h from this afternoon and thunderstorms possible. In the 8 hours between 10am and 6pm Monday: Expect 60 to 90mm of rain to accumulate. Peak rates of 15 to 25mm/h.

Strong wind warnings:
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, Wellington, Marlborough Sounds Valid: 30 hours from 1:00 am Monday to 7:00 am Tuesday

Forecast: Between: 1am Monday and 3pm Monday: Northwest winds may approach severe gale force in exposed places. Between 3pm Monday and 7am Tuesday: Northwest gales are forecast to become severe with gusts reaching 120 km/h in exposed places. Note: The period between 1am Monday and 3pm Tuesday is a Wind Watch for the possibility of severe northwest gales. Area: Canterbury High Country Valid: 24 hours from 3:00 am Monday to 3:00 am Tuesday Forecast: Northwest gales are forecast to become severe with gusts reaching 120 km/h in exposed places. However, gusts may become damaging possibly reaching 140 km/h or more in exposed places for a time during Monday afternoon. Also note, further severe gales are possible later on Tuesday and this Warning may be extended. Area: Otago, especially inland areas. Valid: 40 hours from 3:00 am Monday to 7:00 pm Tuesday Forecast: Between 3am Monday and 5pm Monday: Northwest gales are forecast to become severe with gusts reaching 120 km/h in exposed places. Note: Northwest gales are expected to return overnight Monday and during Tuesday, and this warning period is extended to cover the possibility of northwest gales becoming severe between 4am Tuesday and 7pm Tuesday. Change note: Watch upgraded to Orange Warning and area extended to cover all of Otago. Area: Fiordland and Southland about and west of Riversdale Valid: 43 hours from 11:00 pm Sunday to 6:00 pm Tuesday Forecast: Between 11pm today (Sunday) and 3pm Monday: Northwest gales are forecast to become severe with gusts reaching 120 km/h in exposed places. Note: Northwest gales are expected to return overnight Monday and during Tuesday and this warning period is extended to cover the possibility of northwest gales becoming severe between 3am Tuesday and 6pm Tuesday.
 

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