The Scottish Environment Protection Agency (Sepa) warns Scotland is facing a growing threat of water shortages.
It said every part of the country had now reached some level of scarcity.
But Sepa has forecast 28 of 83 areas of Scotland could be at significant scarcity - its highest level of risk - by 30 June.
The Loch Maree area of the Highlands is already at that level, while the whole of south-west Scotland has been placed on Sepa's second highest warning level.
Parts of central Scotland, the Inner Hebrides and Ness area of the Highlands are also at that same moderate scarcity level.