MenuMain navigation

Global Setting – August 2011

ENSO conditions in the tropical Pacific are in the neutral range and are expected to remain neutral through the spring. Mean sea level pressures are likely to be above normal across much of New Zealand, with weaker westerlies than normal over the country, on average. Temperatures are likely to be above average in the North Island as well as for the northern South Island, and near average or above average in other regions. Seasonal rainfall, soil moistures, and river flows are all likely to be normal or below normal for the North Island as well as the western South Island, and near normal in other regions. 

Sea surface temperatures 

During spring (September-November), mean sea level pressures are likely to be above normal across much of New Zealand, with weaker westerlies than normal over the country, on average. 

Differences from average global sea surface temperatures for 31st July 2011 to 27th August 2011. Map courtesy of NOAA Climate Diagnostics Centre (http://www.cdc.noaa.gov/map/images/sst/sst.anom.month.gif).
Monthly values of the Southern Oscillation Index (SOI), a measure of changes in atmospheric pressures across the Pacific, and the 3-month mean (black line). Estimated SOI mean values: August SOI +0.1; June to August average +0.4
Differences from normal August surface temperatures in the seas around New Zealand.

Archived

This page has been marked as archived, and is here for historical reference only.

Information provided may be out of date, and you are advised to check for newer sources in this section.

This content may be removed at a later date.