Heavy rain warnings are in place for Auckland and other parts
of the country tonight, but flood-vulnerable Christchurch is
expected to escape the worst of the weather.
MetService meteorologist John Law said severe weather
warnings for heavy rain have been issued for Northland,
Auckland and the Coromandel Peninsula well as the top of the
South Island, with parts of Marlborough and Nelson expected
to get a soaking.
"The heaviest rain will fall away from Christchurch," Mr Law
Auckland would be feeling the brunt of a northeasterly
weather system, which hasn't occurred in a long time,
MetService Auckland forecaster Georgina Griffiths said.
"We're in for an extremely wet few days."
Auckland could expect between 100mm and 150mm to fall between
today and Wednesday, with tomorrow set to be the wettest day
of the week.
The Christchurch City Council has installed flood mitigation
pump operations in the Flockton and Dudley Creek areas ahead
of the weather system that is moving in today.
Mayor Lianne Dalziel said the pumps would reduce the flood
risk to the residents in vulnerable parts of Christchurch.
"Even if the expected forecast doesn't arrive, this will be a
good test of the Taskforce's flood mitigation deployment
plans", she said.
At midday no rain had fallen in Christchurch, and 40 to 45mm
were forecast to fall before Wednesday.
Surface flooding and slips could occur in Northland due to
the heavy rain, where the rain has already been falling
today, Civil Defence Northland said.
Northland CD Emergency Management Group spokesman Graeme
MacDonald said tomorrow afternoon was expected to be the
period of most concern.
He said Kaikohe had 100mm of rain fall by midday, and Civil
Defence was collecting data for other areas in Northland to
monitor the situation. The rain was forecast to fall steadily
Mr MacDonald said possible problems could include rapid rises
in rivers and streams, resulting in surface flooding and the
possibility of slips.
Northlanders are used to heavy rain causing problems, he
said, and should be taking necessary precautions today.