Streamflows - October 2006
Following on from the low rainfalls experienced since June (and therefore dry catchments), the limited rainfalls in October resulted in almost all Victorian streams showing a further deterioration in flows relative to the monthly average.
At the end of October, 95% of the State had streamflows that were below 10% of the long-term average flow for the month. (see map, graphs and table)
Flows recorded at nearly half of the gauged stations (13 out of 28) are the minimum ever recorded during October. Out of the 28 stations analysed, 26 have current flows lower than average daily flows recorded in October 1982, and 9 of these stations recorded zero flows.
As in previous months, the highest flow relative to the long-term October average was 17%, on the Snowy River downstream of Basin Ck. Yarra River at Milgrove, with its current flow of 15% of the long-term average is the only other station to maintain flow within the 10-19% flow class.
Because the catchments are still very dry it will take significant rainfall to wet them up before any good runoff is generated.
In this section
The following are graphs for the 28 streamflow guaging stations, showing long-term average daily streamflow, recorded minimum streamflow, streamflow in the 1982/83 drought and current daily streamflow.
- Glenelg/Wimmera (Glenelg Hopkins catchment, Wimmera catchment)
- Northern Victoria (North Central catchment, Goulburn Broken catchment, North East catchment
- South Central Victoria (Port Phillip catchment, Corangamite catchment)
- Gippsland (West Gippsland catchment, East Gippsland catchment)