This was posted at 4am Friday the 18th of April 2014. The rainfall predicted below has occurred and is occurring. From north to south typical rainfall depths so far are Kaikoura 200ml, Waiau (Marble Point) 50ml, Hurunui ( Mandamus) 20ml, Ashley Foothills 50ml, Cust Main Drain 60ml, Port Hills 30ml, Akaroa 100ml, Mt Somers 100ml. The outlook is for the rain band to move south and clear from the north.
River flows again from north to south are Waiau @ Marble Point 345 cumecs (peaking), Hurunui @ Mandamus 171 cumecs, Waipara @ Whitecliffs 100 cumecs, Ashley @ the Gorge 316 cumecs, Halswell @ Ryans Bridge 5.3 stage and rising, Selwyn @ Whitecliffs 1.5 stage 36 cumecs, North Ashburton 28 cumecs and the South Ashburton 47 cumecs.
This will be further updated later in the morning.
This was posted am Thursday the 17th of April.
Christchurch and Canterbury should prepare for heavy rain and possible surface flooding from this afternoon through until the middle of tomorrow. MetService last night issued severe weather warnings as the remains of Tropical Cyclone Ita drifted south to the west of the country. The deep storm system was likely to bring up to 70mm of rain to Christchurch during that period and up to 150mm about Banks Peninsula and the foothills, the service said. This will cause the foothills and plains rivers and streams to rise quickly over this period. Detailed warning messages will be posted throughout the event as required.