Seasonal climate summary southern hemisphere (winter 1990): generally normal conditions in the tropics and warm in mid-latitudes

A climate analysis is given of the southern hemisphere winter circulation, June to August 1990, with more detailed treatment of the Australian region. In the equatorial Pacific, winter sea-surface temperatures were mainly near normal, although slightly above normal in western areas. Other equatorial Pacific climate indices remained near normal. In mid-latitudes, sea-surface temperature anomalies continued positive, especially across the Pacific. A three-wave planetary pattern persisted with the oceanic troughs located in the eastern sectors of the oceans.