Summer’s legacy lingers into Autumn

SEPA – WEEKLY WATER SCARCITY REPORT

Scotland has entered autumn with two areas at Significant Water Scarcity, as prolonged rainfall deficits continue to affect river flows. 

Significant Water Scarcity has now been recorded somewhere in Scotland in each of the Scottish Environment Protection Agency (SEPA) past six weekly reports, although the areas affected have changed during that time.  

The latest Water Scarcity Report from SEPA shows The Upper Tweed and Mid Tweed & Lauderdale have moved to Significant Scarcity this week. No abstraction licences are affected by this change.  

Significant Scarcity is reached when representative river flows remain exceptionally low for 30 consecutive days. 

Meanwhile, Dee (Galloway) and Urr Water have now moved out of Significant following rain this week, though the wider area remains at moderate scarcity. Across Scotland nine areas are at Moderate Scarcity, a level where environmental impacts are clear.  

The picture varies sharply across Scotland. Recent rainfall has improved conditions in parts of the north-east, with Deveron, Ythan and Don (Aberdeenshire) moving from Moderate Scarcity to Alert. Doon, Irvine and Ayr have returned to Normal Conditions. 

Further down the east coast, very low river flows continue. In Fife, North Fife and Fife (East Neuk) both reached Significant Scarcity earlier this summer before conditions improved following rainfall. Both have now recorded 25 consecutive days of very low flows again.  

Stonehaven, North Esk and the Lower Earn areas are also at risk of moving to Significant next week.  

The report comes at the beginning of meteorological autumn, which began on 1st September.  

Eilidh Johnston, SEPA Senior Leader in Compliance, said: “Scotland has a reputation for rain, so it can seem surprising to be at the start of autumn with two areas at Significant Water Scarcity, particularly when it may be raining where you are. 

“But water scarcity isn’t determined by today’s weather. Rainfall deficits build up over time, and a few days of rain may not be enough to reverse the effects of a prolonged dry period. 

“We can see that clearly this week. Conditions have improved in some areas, while rivers in parts of the south and east remain exceptionally low. 

“This summer has shown why businesses which rely on water from the environment need to plan ahead. The impacts of dry conditions can last beyond the dry weather itself. 

“As our climate changes, periods of water scarcity are expected to become more frequent and severe. Businesses need to understand what that could mean for them and have plans in place before water becomes constrained.” 

Further showers are forecast on Friday, with potentially heavy rain on Sunday. SEPA will continue to monitor rainfall, river flows, soil moisture and groundwater levels and update water scarcity levels as conditions change.