Monthly Water Update

small map representing the district Pilbara-Gascoyne

Pilbara–Gascoyne

October 2019 Summary

Rainfall was average or lower than average across 90 per cent of the area, predominantly in the south and west. The Monsoon rains have not yet arrived, and October commonly falls within the dry season in this part of Australia. Most of the area did not receive any rainfall bringing the mean rainfall to only 1 mm, 80 per cent lower than the long-term mean of only 5 mm for October.

The only river to flow during October was Greenough River - Karlanew Peak which had the second highest streamflow for October since 1980. All other stations recorded no flow which is average for October for six of the nine sites in the drainage division.

During October, the total accessible volume of the only storage system decreased by one per cent. By the end of the month, the volume of water stored was 23 per cent of the total accessible capacity, a decrease of 22 per cent from the same time last year.

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Rainfall

map visualising rainfall details

Streamflow

map visualising streamflow details

Water storages

map visualising storage details

Rainfall

map visualising rainfall details for Pilbara-Gascoyne

Rainfall statistics

Rainfall decile group Percentage of area
Highest on record since 1900 0%
Very much above average Less than 1%
Above average 10%
Average 59%
Below average 23%
Very much below average 8%
Lowest on record since 1900 Less than 1%

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