Source: Bureau of Meteorology

Issued at 10:52 am EST on Sunday 26 July 2020

Flood Watch Number: 1


From late Sunday into Tuesday, rainfall associated with a low pressure system has the potential to cause local and minor riverine flooding along coastal rivers from Sydney to Moruya. Rivers where minor flooding is possible include, the Upper Nepean and Georges Rivers in Sydney, as well as St Georges Basin and Shoalhaven, Moruya and Deua Rivers in the Illawarra and South Coast.

Flooding is also possible in the Snowy River during Monday. There is flood watch current for Snowy, Bemm, Cann and Genoa Rivers in Victoria.

A low pressure system is forming off the NSW north coast, and is expected to move southwards during Sunday and Monday, before moving off into the Tasman Sea later on Tuesday. This system is expected to bring heavy rainfall to the coast, mainly focussed south of Port Stephens.

The weather system is expected to cause flooding for the catchments listed from late Sunday onwards.

Flood Classes (minor, moderate, major) are only defined for catchments where the Bureau provides a flood warning service.

Catchments likely to be affected include:
Upper Nepean River minor flooding

Georges and Woronora Rivers minor flooding

Shoalhaven River minor flooding

St Georges Basin minor flooding

Moruya and Deua Rivers minor flooding

For the latest flood and weather warnings see

For the latest rainfall and weather forecasts see

For the latest rainfall and river level information see Flood Safety Advice:

This Flood Watch means that people living or working along rivers and streams must monitor the latest weather forecasts and warnings and be ready to move to higher ground should flooding develop.

Flood Warnings will be issued if Minor Flood Level is expected to be exceeded at key sites along the main rivers for which the Bureau of Meteorology provides a flood warning service.

Severe Weather Warnings will be issued or updated if very heavy rain is forecast or observed.

For more information on the Flood Watch Service:

FloodSafe advice is available at

For emergency assistance call the SES on telephone number 132 500

For life threatening emergencies, call 000 immediately

Rainfall and River Conditions Map