Wessex Area Status Change to Prolonged Dry Weather (PDW)
The Wessex Area Drought Team has reviewed the latest drought indicators and trigger levels. Following this assessment, it has been concluded that sufficient triggers have now been met to change the area's status to Prolonged Dry Weather (PDW). This change was officially announced on 20th July.
The key factors that have led to this change are:
- Temperature – Both air and river temperatures have remained above seasonal averages for several weeks.
- Rainfall – Although total rainfall during June was above the long-term average, the majority fell within the first 10 days of the month. Since 10th June, conditions have been exceptionally dry, and the forecast indicates that predominantly dry weather is expected to continue.
- Soil Moisture Deficit – Soil moisture levels are extremely low and are approaching historic maximum deficit levels for this time of year.
- River Flows – Many rivers across the Wessex Area are currently experiencing below-normal flows for the season.
- Groundwater – Groundwater conditions remain mixed. While some monitoring sites are below normal, groundwater resources continue to benefit from good winter recharge and improved levels following spring rainfall.
- Environmental Incidents – A small number of dry weather-related environmental incidents have already been recorded this year. Current conditions are expected to increase the likelihood of further incidents, including fish mortalities and algal blooms.
- Water Demand – Water companies have reported higher-than-normal demand for this time of year, reflecting the prolonged dry conditions.
This information is being shared in advance to keep partners and the public informed. The Environment Agency and IDB will continue to monitor conditions closely.