Retrospective: June-August 2016 Outlook

For June – August 2016, higher pressures than normal were forecast to the north and northeast of New Zealand, with lower pressures than normal to the south and the southeast of the country. Westerly to north-westerly wind flow anomalies were expected to affect the country. Actual pressures were near normal over New Zealand and lower than normal to the southwest of the country. This pressure set up lead to more north-westerlies than normal.

Predicted air temperature: June – August 2016 temperatures were very likely to be above average in all regions of the country.

Outcome: Actual seasonal temperatures were near normal for Taranaki, western Waikato, Tasman, Nelson, Marlborough and coastal Otago. Temperature was above normal elsewhere.

Predicted rainfall: June – August 2016 rainfall was likely to be above normal in the north and west of the North Island and the west of the South Island. Seasonal rainfall totals were equally likely to be near normal or above normal in the east of the North Island and the north and east of the South Island.

Outcome: Actual rainfall was below normal in central and northern Canterbury, eastern Marlborough and the Wairarapa. Rainfall was above normal in parts of the Bay of Plenty and Hawkes Bay, and near normal elsewhere

Weather station. [NIWA]