SEVERE WEATHER WARNING.
ISSUED BY MetService AT 8:53pm 04-May-2016
URGENT - IMMEDIATE BROADCAST IN: Westland, Canterbury High Country,
Buller, Nelson, Manawatu, Kapiti Horowhenua, Wellington, Wairarapa,
Fiordland, Southern Lakes
HEAVY RAIN FOR WESTLAND, BULLER, NORTHWEST NELSON, HOROWHENUA AND
A complex trough is expected to cross central New Zealand on
Thursday, preceded by a humid northerly flow. Further heavy rain is
forecast for Westland and Buller, before easing early Thursday
morning. For the ranges of northwest Nelson, also Horowhenua and
Kapiti, 60 to 100mm could accumulate in 9 to 12 hours, starting
tonight in northwest Nelson and early Thursday morning elsewhere.
People are advised that streams and rivers are likely to rise rapidly
and slips are possible in vulnerable areas.
Heavy rain about the Otago Headwaters has eased and should soon ease
about the Canterbury Headwaters.
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HEAVY RAIN WARNING
AREA/S AFFECTED: WESTLAND NORTH OF LAKE MOERAKI
Heavy rain is expected to ease early Thursday morning. In the 6 hours
between 9pm Wednesday and 3am Thursday, expect a further 50 to 70mm
about the ranges and 20 to 50mm closer to the coast. Peak intensities
of 20 to 30mm per hour until around midnight.
FREEZING LEVEL: 3200 metres.
AREA/S AFFECTED: CANTERBURY HEADWATERS, ABOUT AND SOUTH OF THE
Heavy rain is expected to ease around midnight. Between 9pm and
midnight Wednesday, expect a further 20-30mm within 15km east of the
divide. Peak intensities of 10 to 15mm per hour.
FREEZING LEVEL: 3200 metres.
AREA/S AFFECTED: BULLER
Heavy rain is expected tonight and early Thursday morning. In the 9
hours between 9pm Wednesday and 6am Thursday, expect 70 to 90mm to
accumulate. Peak intensities of 15 to 25mm per hour.
FREEZING LEVEL: 3300 metres.
AREA/S AFFECTED: THE RANGES OF NORTHWEST NELSON
Burst of heavy rain expected tonight and Thursday morning. In the 12
hours between 9pm Wednesday and 9am Thursday, expect 80 to 100mm to
accumulate. Peak intensities of 15 to 20 mm per hour Thursday
FREEZING LEVEL: 3400 metres.
AREA/S AFFECTED: HOROWHENUA, KAPITI AND THE TARARUA RANGE
A burst of heavy rain is expected Thursday morning and afternoon. In
the 9 hours between 6am and 3pm Thursday, expect 60 to 90mm to
accumulate, especially about the ranges. Peak intensities of 15 to
25mm per hour mid-morning.
WARNINGS NO LONGER IN FORCE
HEAVY RAIN WARNINGS HAVE BEEN LIFTED FOR: FIORDLAND NORTH OF DOUBTFUL
HEAVY RAIN WARNINGS HAVE BEEN LIFTED FOR: HEADWATERS OF THE OTAGO
LAKES AND RIVERS
NEXT SEVERE WEATHER WARNING WILL BE ISSUED AT OR BEFORE
9:00am Thursday 05-May-2016
Forecast prepared by: Rochelle Fleming
For further information after 9pm Wednesday May 4th contact Duty
Forecaster Hordur Thordarson
A service provided through a contract with the Crown
Short Range Forecast
Northland to Waitomo, including Coromandel, Bay of Plenty and the central high country: Mostly cloudy with the odd shower. Areas of morning fog south of Auckland.
Gisborne and northern Hawkes Bay: Increasing high cloud.
Southern Hawkes Bay and Wairarapa, also Whanganui and Manawatu: Scattered rain.
Taranaki, Horowhenua Kapiti Coast and Wellington: Rain developing with some heavy falls, mostly about the Tararua Range, easing later.
Nelson, Marlborough, Buller and Northern Westland: Rain with some heavy falls, clearing most places this morning but the odd shower remaining in Buller and about the Sounds.
Southern Westland and Fiordland, also Canterbury, Otago and Southland: Areas of cloud at first with the odd early shower in Canterbury and about coastal Southland, then becoming fine.
Chatham Islands: Cloud increasing. Brief light rain later.
Friday: North Island, some rain or showers for most, easing later. Dry in the east with high cloud. South Island, occasional rain in the northwest, clearing at night. Drizzle for Fiordland, then late rain. Mainly fine elsewhere, but morning low cloud or fog.
Saturday: North Island, the odd shower in the far north and east. Showers clearing elsewhere and becoming fine. South Island, early heavy rain for Fiordland, then a few showers. Showers developing in southern Westland, Southland and Clutha. Mainly fine elsewhere.
Sunday: Mainly fine, but one or two showers in the far north and east of the North Island and for southern Westland and Fiordland.
Chatham Islands: On Friday, cloudy periods, with northerlies developing. On Saturday, often cloudy, with a few showers developing at night. Northwesterlies changing southwest overnight. On Sunday, few morning showers, then fine. Southerlies dying out.