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Weather Warning


SEVERE WEATHER WARNING.
ISSUED BY MetService AT 8:50pm 03-May-2016
URGENT - IMMEDIATE BROADCAST IN: Westland, Fiordland, Wairarapa,
Kapiti Horowhenua, Wellington

HEAVY RAIN FOR FIORDLAND AND WESTLAND.
A low is expected to develop on a trough over the Tasman Sea during
Wednesday, then the system should then cross the country on Thursday.
A moist northerly flow precedes the trough, bringing heavy rain to
Westland and Fiordland. The largest accumulations are expected to be
about the ranges of Westland from Otira southwards, where 150 to
200mm could accumulate from Wednesday morning until Thursday morning.
People are advised that streams and rivers are likely to rise rapidly
and slips are possible in vulnerable areas.
Note, the Warning for heavy rain about the Tararua Range today is
lifted.
FOR THE LATEST WEATHER AND FORECAST CHARTS PLEASE GO TO
http://metservice.com
MORE DETAILED INFORMATION FOR EMERGENCY MANAGERS AND TECHNICAL USERS
FOLLOWS.
______________________
HEAVY RAIN WARNING
______________________
AREA/S AFFECTED: WESTLAND FROM OTIRA SOUTHWARDS
FORECAST:
Rain is expected to become heavy Wednesday morning and should ease
Thursday morning. In the 24 hours from 6am Wednesday to 6am Thursday
expect 150 to 200mm about the ranges and 60-90mm closer to the coast.
Peak intensities of 20 to 30mm per hour Wednesday afternoon and
evening.
FREEZING LEVEL: 3000 metres.
AREA/S AFFECTED: FIORDLAND NORTH OF DOUBTFUL SOUND
FORECAST:
A burst of heavy rain expected from Wednesday morning until Wednesday
night. In the 16 hours from 8am to midnight Wednesday expect 100 to
150mm to accumulate. Peak intensities of 20 to 30mm per hour
Wednesday afternoon and evening.
FREEZING LEVEL: 3000 metres.
_______________________________
WARNINGS NO LONGER IN FORCE
_______________________________
HEAVY RAIN WARNINGS HAVE BEEN LIFTED FOR: TARARUA RANGE
NEXT SEVERE WEATHER WARNING WILL BE ISSUED AT OR BEFORE
9:00am Wednesday 04-May-2016
Forecast prepared by: Rochelle Fleming
For further information after 9pm Tuesday May 3rd contact Duty
Forecaster Allister Gorman
A service provided through a contract with the Crown

Short Range Forecast

201605052359

Northland, Auckland, Waikato, Coromandel and Bay of Plenty: Cloudy periods and isolated showers.
Waitomo to Whanganui, also the central high country: Cloud increasing. A few showers about Taranaki today, spreading elsewhere tomorrow.
Gisborne, Hawkes Bay and Wairarapa: Increasing high cloud. Scattered rain in Wairarapa tomorrow.
Manawatu to Wellington, including Wairarapa: Cloudy periods with isolated showers. Rain developing tomorrow morning, possibly heavy about the ranges, easing later.
Nelson and Marlborough: A few showers about the ranges, turning to widespread rain overnight with some heavy falls, easing tomorrow.
Canterbury, Otago and Southland: Rain developing this afternoon or evening but only patchy falls in Canterbury, clearing overnight then becoming fine.
Buller to Fiordland: Rain with some heavy falls, clearing in the south overnight but cloud and a few showers remaining in Buller and northern Westland.
Chatham Islands: Cloud increasing. Occasional rain tomorrow.

Extended Forecast

201605072359

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.

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