"Milk production across the export engine has stuttered along in the first half of 2019 with negative growth of 0.3 per cent and this has created tension in the global market.
"However, the milk supply tap is slowly being turned on, and in quarter three we expect to see the return of milk supply growth for the big seven exporters, with this led by the northern hemisphere producers."
Importantly for New Zealand producers, the bank's forecast suggested less milk volumes would be available from the southern hemisphere export countries over the second half of 2019.
On the demand side, the report said the landscape in import markets remained a "mixed bag".
Chinese import appetite was stronger than expected through the first four months of 2019 and some buyers were likely to have adequate coverage.
Chinese demand was expected to remain firm but lower than in the first half of 2019 which might "place a ceiling" on price increases, Ms Higgins said.
The US economy was heading for a sizeable slowdown in 2020 while the Eurozone economy had been underperforming since 2018, she said.
Trade tensions and the worsening African swine fever outbreak shaped as key watch factors in the second half of 2019, the report said.