SEVERE WEATHER WARNING.
ISSUED BY MetService AT 7:44pm 01-May-2016
URGENT - IMMEDIATE BROADCAST IN: Fiordland, Westland
BURST OF HEAVY RAIN FOR FIORDLAND AND THE RANGES OF WESTLAND ON
An active front is expected to move northeast across the South Island
during Monday, preceded by a moist north to northwest flow. A period
of heavy rain is expected in the west, with the largest accumulations
likely to be about northern Fiordland and the ranges of Westland,
where 120 to 180mm could accumulate in 12 to 18 hours.
People are advised that streams and rivers are likely to rise
rapidly, and surface flooding and slips are possible.
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HEAVY RAIN WARNING
AREA/S AFFECTED: FIORDLAND FROM DOUBTFUL SOUND NORTHWARDS
Rain is expected to become heavy early Monday morning and should ease
Monday afternoon. Between 3am and 3pm Monday, expect 80 to 120mm to
accumulate. Peak intensities of 15 to 25mm per hour from late Monday
morning, and thunderstorms are possible.
FREEZING LEVEL: 3000 metres
AREA/S AFFECTED: THE RANGES OF WESTLAND FROM OTIRA SOUTHWARDS
Rain is expected to become heavy Monday morning and should ease from
the south Monday evening. In the 18 hours from 5am to 11pm Monday,
expect 120 to 180mm to accumulate. Peak intensities of 20 to 30mm per
hour Monday afternoon and evening, and thunderstorms are possible.
FREEZING LEVEL: 3200 metres
NEXT SEVERE WEATHER WARNING WILL BE ISSUED AT OR BEFORE
9:00am Monday 02-May-2016
Forecast prepared by: Erick Brenstrum
A service provided through a contract with the Crown
Short Range Forecast
Northland to Wellington, including Coromandel, Bay of Plenty and the central high country: Cloudy periods and isolated showers.
Gisborne and Hawkes Bay: Fine, with some high cloud tomorrow.
Wairarapa, Nelson, Marlborough and Canterbury: Fine at first, but high cloud increasing tomorrow, with showers developing about the western ranges after dark.
Buller, Westland and Fiordland: Showers turning to rain south of the Glaciers tonight and elsewhere tomorrow, with heavy falls and possible thunderstorms.
Otago and Southland: High cloud, with brief rain tomorrow afternoon.
Chatham Islands: Cloudy periods, with a few showers tonight.
Tuesday: North Island, fine and cloudy areas. A few showers for Taranaki, Kapiti and Wellington. South Island, a few showers in the north and west, clearing in the north. Sunny breaks and variable high cloud elsewhere.
Wednesday: North Island, mainly fine, but a few showers for Taranaki,Kapiti and Wellington. Gale northerlies for Wellington. South Island, high cloud in the east, with scattered late rain in the south. Rain setting in west of the divide, possibly heavy.Northerlies rising to gale in exposed places.
Thursday: North Island, becoming cloudy and showers developing in central and southern areas. Fine in the north. South Island, rain for most places clearing, becoming fine.
Chatham Islands: Cloudy periods and the odd shower on Tuesday and Wednesday, with northwesterlies changing southwest Tuesday, then dying. Northerlies developing Thursday, then brief rain later in the day with winds changing southwest again.