SEVERE WEATHER WARNING.
ISSUED BY MetService AT 8:51pm 18-Sep-2014
URGENT - IMMEDIATE BROADCAST IN: Taranaki, Wairarapa, Wellington
HEAVY RAIN FOR MOUNT TARANAKI AND THE TARARUA RANGE
A complex trough is expected to approach New Zealand over the next
few days. An active front associated with this trough is forecast to
spread northerly rain over much of the country overnight tonight
(Thursday) until Friday morning, with further bursts of heavy rain
from Friday afternoon to Saturday afternoon in an unstable northwest
The heaviest falls are expected about Mount Taranaki from this
evening until early Friday morning, then about the Tararua Range from
Friday afternoon until Saturday afternoon. A total accumulation of
100 to 150mm is expected about Mount Taranaki over a 12 hour period,
and about the Tararua Range over a 24 hour period.
People in the area, especially trampers, are advised that heavy rain
is likely to cause rivers and streams to rise rapidly.
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HEAVY RAIN WARNING
AREA/S AFFECTED: MOUNT TARANAKI
Heavy rain is expected about the Mountain tonight (Thursday) and
early Friday morning. In the 9 hours from 9pm Thursday until 6am
Friday expect a further 80mm to accumulate, but 120mm about higher
parts of the Mountain. Peak intensities 10 to 20mm per hour about the
higher slopes tonight. Note, showers are expected to continue about
the Mountain until late Saturday afternoon, some falls may be heavy.
AREA/S AFFECTED: THE TARARUA RANGE
Rain is expected to become heavy from Friday afternoon. In the 24
hours from 3pm Friday until 3pm Saturday, expect 100 to 150mm to
accumulate. Peak intensities 10 to 15mm per hour Friday evening
through to Saturday morning.
NEXT SEVERE WEATHER WARNING WILL BE ISSUED AT OR BEFORE
9:00am Friday 19-Sep-2014
Forecast prepared by: Leigh Matheson
For further information after 9pm Thursday 18 September contact Duty
Forecaster Erick Brenstrum or Micky Malivuk
A service provided through a contract with the Crown
Short Range Forecast
Northland to Taranaki and across to Bay of Plenty and Taupo: Rain with heavy falls and thunderstorms, turning to showers this morning, then clearing Bay of Plenty and Taupo later.
Gisborne and Hawkes Bay: High cloud. A period of rain this morning, then clearing.
Wanganui and Taihape to Wellington, also Wairarapa and Marlborough: Rain turning to showers this morning, then clearing from Wairarapa and Marlborough.
Nelson to Fiordland: Rain, with heavy falls and thunderstorms in the west, clearing Nelson City this morning. Becoming colder, with snow to 700 metres in Fiordland and Westland from evening.
Canterbury, Otago and Southland: High cloud. Periods of rain about the Alps, and a few showers about Southland and eastern Otago.
Chatham Islands: Rain developing this afternoon.
Saturday: Rain or showers in most places. Mostly dry in the east of the South Island at first, but showers spreading north from afternoon, and snow gradually lowering to 400 metres in the south. Cold southerlies spreading north.
Sunday: Rain or showers in most places, snow level in the south lifting.
Monday: Showers, gradually easing and fine spells increasing. Chatham Islands: Rain clearing on Saturday, but returning on Sunday. Showery southwesterlies on Monday.