SEVERE WEATHER WARNING.
ISSUED BY MetService AT 8:59am 20-Dec-2014
URGENT - IMMEDIATE BROADCAST IN: Westland, Taranaki
A PERIOD OF HEAVY RAIN FOR THE RANGES OF WESTLAND AND MOUNT TARANAKI
A complex trough is moving across the South Island today, preceded by
a moist northerly flow. Heavy rain is expected in Westland through
much of today (Saturday), with the heaviest falls about the ranges,
where a further 130 to 180mm is likely.
Rain is expected to spread across the North Island later today, with
heavy falls likely in many areas. The largest accumulations are
expected about Mount Taranaki, where 100mm could fall in a 12 hour
People, especially trampers, are warned to look out for rapidly
rising rivers and streams. Surface flooding, slips and hazardous
driving conditions are also likely during this time.
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MORE DETAILED INFORMATION FOR EMERGENCY MANAGERS AND TECHNICAL USERS
HEAVY RAIN WARNING
AREA/S AFFECTED: WESTLAND SOUTH OF OTIRA
Heavy rain is expected to ease from the south this evening. In the 15
hours from 9am to midnight Saturday, expect a further 100 to 130mm to
accumulate about the ranges, with 180mm possible about higher slopes
south of Whataroa. During the same time, a further 50 to 70mm of rain
is likely nearer the coast. Rainfall rates about the ranges could
reach 25mm per hour at times, especially in possible thunderstorms.
FREEZING LEVEL: 3000 metres
AREA/S AFFECTED: MOUNT TARANAKI
Rain is expected to become heavy this afternoon, then ease early
Sunday morning. In the 12 hours from 3pm Saturday until 3am Sunday,
expect 70 to 100mm of rain. Rainfall rates could reach 25mm per hour
for a time.
NEXT SEVERE WEATHER WARNING WILL BE ISSUED AT OR BEFORE
9:00pm Saturday 20-Dec-2014
Forecast prepared by: Rochelle Fleming
For further information after 1.30pm Saturday December 20th contact
Duty Forecaster Andy Downs
A service provided through a contract with the Crown
Short Range Forecast
Northland to Kapiti, also Coromandel Peninsula, Bay of Plenty, Taupo and Taihape: Rain, with some heavy falls, and possible thunderstorms from Taranaki northwards. Easing to a few showers in the morning.
Gisborne to Wairarapa: Mostly fine. Brief rain overnight then a few showers in Hawkes Bay tomorrow afternoon.
Wellington: Rain developing this evening but becoming fine in the morning. Isolated showers tomorrow night.
Nelson and the Marlborough Sounds: Rain, clearing overnight and becoming fine.
Rest of Marlborough and Canterbury: Mainly fine. Rain about the ranges until morning. Inland showers tomorrow afternoon.
Buller to Fiordland: Rain, with heavy falls and possible thunderstorms. Easing to showers in the morning, then slowly clearing later.
Otago and Southland: Scattered rain clearing tomorrow morning. However a few showers for coastal Southland and North Otago later tomorrow.
Chatham Islands: Drizzle, clearing tomorrow.
Monday: North Island, a few showers in the south and east. Mainly fine elsewhere. South Island, fine or becoming fine in the north and east. A few showers in the west, and rain in Fiordland.
Tuesday: North Island, scattered showers, mainly north of Auckland and about the eastern ranges. South Island, rain in the far south clearing. Elsewhere, mainly fine, afternoon and evening showers about the ranges.
Wednesday: North Island, mainly fine in the east. Cloudy periods and a few showers elsewhere. South Island, mainly fine. Isolated afternoon and showers possible about Otago, and patchy drizzle about the fiords.
Chatham Islands: Cloudy periods on Monday and Tuesday. Winds changing southwest early Monday morning. A few showers on Wednesday and southwesterlies dying out.