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Sub-tropical Ridge (STR)

The Sub-tropical Ridge (STR) is a band of high pressure that influences seasonal weather variability across Australia.

During summer the STR is positioned to the south of Australia and brings dry, warm and stable weather conditions. This can have a significant impact on farming across southern Australia, as it can lead to drought conditions, water shortages and reduced crop yields. We may need to adopt strategies such as irrigation, crop rotation and soil conservation to cope with these conditions.

The following video explains the impact of STR and how it behaves. 

Key points