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SEVERE WEATHER WARNING.
ISSUED BY MetService AT 8:57pm 28-Sep-2016
URGENT - IMMEDIATE BROADCAST IN: Gisborne, Coromandel Peninsula
FURTHER HEAVY RAIN FOR GISBORNE AND THE COROMANDEL PENINSULA
A moist easterly flow is expected to continue over most of the North
Island through into Friday morning. The heaviest falls are expected
to be about northern parts of the Gisborne region, where 100 to 120mm
could accumulate from Wednesday night through to Thursday evening.
For the Coromandel Peninsula, heavy rain is likely to be of a shorter
duration, but 60 mm could accumulate in some places Wednesday night
and Thursday morning. A further burst of 70mm is possible Thursday
night and Friday morning.
Both these regions have had significant rainfall accumulations during
the last few days, and this rain could exacerbate any issues, such as
surface flooding and slips. Streams and rivers are likely to remain
high and could rise further for a time.
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HEAVY RAIN WARNING
AREA/S AFFECTED: GISBORNE, NORTH OF THE CITY
Periods of rain are expected tonight and Thursday, with heavy falls.
In the 24 hours between 9pm Wednesday and 9pm Thursday 100 to 120mm
could accumulate, especially about higher parts of the ranges. Peak
intensities of 10 to 15mm per hour.
AREA/S AFFECTED: COROMANDEL PENINSULA
Periods of rain are expected from tonight, through Thursday, and into
Friday morning, with localised heavy falls at times. The heaviest
rain is expected to be Wednesday night and Thursday morning. In the 6
to 9 hours from 9pm Wednesday 50 to 60mm could accumulate, especially
about higher parts of the ranges. Peak intensities of 10 to 15mm per
hour. Further localised heavy rain is possible Thursday night and
Friday morning when another 60 to 70mm could fall in a 12 hour period
starting around 9pm Thursday.
NEXT SEVERE WEATHER WARNING WILL BE ISSUED AT OR BEFORE
9:00am Thursday 29-Sep-2016
Forecast prepared by: Erick Brenstrum
A service provided through a contract with the Crown
Short Range Forecast
Northland: Fine at first. Showers this afternoon, some heavy and possibly thundery.
Auckland to Whanganui, including the central high country: Scattered showers, some heavy with isolated thunderstorms in the afternoon and evening.
Coromandel Peninsula, Bay of Plenty, Gisborne and Hawkes Bay: Rain, with some heavy falls, especially in Coromandel and Gisborne.
Manawatu and Horowhenua Kapiti Coast: Often cloudy, with a few showers.
Wellington: Fine spells.
Wairarapa, Marlborough, Canterbury and coastal Otago: Cloudy. Areas of drizzle about the coast clearing from afternoon. Isolated afternoon and evening showers inland.
Nelson, Buller and Westland: Cloudy periods, and isolated showers, especially during the afternoon and evening, when some could be heavy and thundery.
Inland Otago, Southland and Fiordland: Areas of low cloud morning and night. Fine in the afternoon apart from isolated showers.
Chatham Islands: Cloudy.
Friday: North Island, showers for most but more frequent east of Tauranga at first. South Island, sunny spells and a few showers, mainly during the afternoon and evening.
Saturday: Cloud increasing and showers developing in the western areas of both the North and South Islands then turning to rain in the west of the South Island later. Fine spells and a few afternoon and evening showers elsewhere.
Sunday: Rain or showers for most, clearing in the eastern areas during the day and remaining dry about the Hawkes Bay and Gisborne.
Chatham Islands: Cloudy periods with a few showers and northeasterlies on Friday. Showers persisting on Saturday and Sunday and winds tend northwest.