Weather Warning


SEVERE WEATHER WARNING.
ISSUED BY MetService AT 9:19am 27-May-2016
URGENT - IMMEDIATE BROADCAST IN: Taranaki, Nelson, Buller,
Marlborough, Northland, Auckland

HEAVY RAIN FOR CENTRAL NEW ZEALAND AND SEVERE NORTHERLY GALES FOR
AUCKLAND AND NORTHLAND TONIGHT AND SATURDAY MORNING.
A large low pressure system is expected to approach central New
Zealand from the Tasman Sea later today (Friday), then move across
the country away to the southeast on Saturday, followed by a trough
on Sunday. The low should deliver rain to many parts of the country,
with the heaviest falls expected about Mount Taranaki, Buller, Nelson
and northwestern parts of Marlborough from Friday night to Saturday
morning, although for Buller rain may continue into the afternoon. 70
to 100mm is expected for most of these areas, but 130mm is possible
about the ranges of western Nelson.
People, especially trampers, are advised that this amount of rain
could cause rivers and streams to rise rapidly, with surface flooding
and slips possible.
In addition, northerly gales are expected to be severe for a time
Saturday morning about exposed parts of Northland and Auckland, with
gusts of 120 km/h possible. Winds of this strength have the potential
to damage trees, powerlines and unsecured structures, as well as make
driving hazardous for high-sided vehicles and motorcycles.
Note, a separate warning is in force for snow about higher parts of
Canterbury and Otago.
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: MOUNT TARANAKI
FORECAST:
Periods of heavy rain expected from Friday evening through to
Saturday morning. In the 10 hours from 10pm Friday to 8am Saturday,
expect 80 to 100mm to accumulate. Peak intensities of 30mm per hour,
with thunderstorms. Further rain is expected through the rest of
Saturday and another 30 to 50mm may accumulate by midnight.
AREA/S AFFECTED: THE RANGES OF WESTERN NELSON
FORECAST:
A burst of heavy rain is expected from Friday evening through to
Saturday morning. In the 12 hours between 9pm Friday and 9am Saturday
expect 80 to 130mm accumulate. Peak intensities 15 to 25mm per hour,
with thunderstorms. Further showers are expected through the rest of
Saturday and another 40 to 60mm may accumulate by midnight.
FREEZING LEVEL: 2500 metres.
AREA/S AFFECTED: BULLER
FORECAST:
Periods of heavy rain expected Saturday morning and early afternoon.
In the 15 hours from midnight Friday to 3pm Saturday, expect 80 to
100mm to accumulate, especially about the ranges. Peak intensities 15
mm per hour. Further showers are expected through the rest of
Saturday.
FREEZING LEVEL: 2500 metres.
AREA/S AFFECTED: RICHMOND AND BRYANT RANGES AND ALSO THE RAI VALLEY
FORECAST:
Periods of heavy rain expected from late Friday evening through to
Saturday morning. In the 10 hours from 10pm Friday to 8am Saturday,
expect 70 to 100mm to accumulate. Peak intensities 15 to 25mm per
hour, with thunderstorms.
FREEZING LEVEL: 2500 metres.
_______________________
STRONG WIND WARNING
_______________________
AREA/S AFFECTED: NORTHLAND AND AUCKLAND
FORECAST:
Northerly gales are expected to become severe in exposed places for a
time Saturday morning, with gusts 120 km/h. Note, north to northwest
gales could become severe again Saturday night and early Sunday
morning, and a Watch is in force for this.
NEXT SEVERE WEATHER WARNING WILL BE ISSUED AT OR BEFORE
9:00pm Friday 27-May-2016
Forecast prepared by: Rochelle Fleming
For further information after 1pm Friday May 27th contact Duty
Forecaster William Nepe
A service provided through a contract with the Crown

Short Range Forecast

201605282359

Northland to Waikato, also Coromandel and Bay of Plenty: Showers, turning to rain for a time tomorrow morning with heavy and possibly thundery falls.
Gisborne, Hawkes Bay, Wairarapa: High cloud. A period of rain north of Hastings and in Wairarapa tomorrow morning. Showers in Wairarapa tomorrow evening.
Waitomo to Wellington, including Taumarunui, Taupo, Taihape also Nelson and Marlborough: Scattered showers. Rain, with heavy and possibly thundery falls, spreading east from this evening, turning to showers tomorrow morning and becoming thundery in the west from afternoon.
Buller, Westland: Showers, turning to rain this evening with heavy and possibly thundery falls north of the Glaciers, easing tomorrow afternoon.
Fiordland: Mostly fine.
Canterbury, North Otago, Dunedin: Mostly fine. Rain, with heavy falls, spreading south overnight and snow lowering to 600 metres, easing tomorrow evening.
Remainder of Otago and Southland: Isolated showers, turning to rain tomorrow morning with snow down to 600 metre.
Chatham Islands: Fine, however, a period of rain tomorrow morning.

Extended Forecast

201605302359

Sunday: North Island, occasional rain or showers for most places, but dry for Hawkes Bay and Gisborne in the morning. South Island, showers in the south, especially about the coast.Fine breaks increasing further north, but showers lingering in Buller, northern Westland, and about Banks Peninsula and the Kaikoura Coast.
Monday: North Island, occasional showers in the west, but fine breaks and only the odd shower in the east. South Island, showers spreading to most places, but remaining dry in southern Westland, northern Fiordland, and Nelson.
Tuesday: North Island, occasional showers in the west, and showers spreading north in the east. South Island, occasional showers for most places, but dry for northern Fiordland, Westland, Buller, Nelson and inland Marlborough.
Chatham Islands: occasional showers throughout the period. Northerlies turning strong or gale westerly on Sunday, then southerly on Tuesday.

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