Levi 
Drought experts will meet this week to decide if stronger advice on water use is needed in response to record low river levels, BBC Wales has been told.
On Thursday, Wales' drought liaison group will discuss whether all or parts of the country should be upgraded from normal to prolonged dry weather status.
Several rivers in north and mid Wales are classed as having notably low levels, while the Dee and Yscir are at their driest since records began in the 1970s.
The Welsh government said its expert group would meet regularly to "ensure water supplies are effectively managed and the environment protected".
Rainfall in Wales so far this spring has been well below average, with the country seeing 49% of the levels expected during March and April, according to the UK Centre for Ecology and Hydrology (CEH).
