June was a warm and generally dry month, although convective thunderstorm activity accompanied above average temperatures. The UK recorded 80% of the long-term average June rainfall, but some regional totals were significantly lower; Southern and North West England registered 49% and 56% of average, respectively. East Anglia, north Wales and much of western Scotland were also particularly dry.

The mid-month spell of dry weather triggered steep recessions in river flows across much of the UK. Groundwater levels generally fell across the aquifer outcrop areas, as is normal for the time of year, but remain above average, significantly so in the north-western and south-western Permo‑Triassic sandstone. Normal seasonal declines in reservoir stocks have generally begun, although most remain above average for the time of year.

The assessment is contained in the latest monthly hydrological summary for the UK, the most authoritative analysis of water resources status in the country. The monthly summaries are produced by the National Hydrological Monitoring Programme, operated by the Centre for Ecology & Hydrology (CEH) in conjunction with the British Geological Survey.June 2014 river flows: Protracted high flows remained a factor in central southern England and the Thames catchment owing to the wetness of the preceding winter.

Summary author, Simon Parry from the Centre for Ecology & Hydrology said, “With groundwater levels and reservoir stocks declining but generally remaining above average, the water resources outlook remains healthy for much of the UK.”

The monthly summary is a look back at hydrological events occurring in June 2014. Latest information on flood warnings is provided by the Environment Agency, Natural Resources Wales and Scottish Environment Protection Agency (flood warnings for Northern Ireland are not available).

A PDF of the full 12-page June 2014 summary can be downloaded here. [PDF 1.99MB]

The Centre for Ecology & Hydrology jointly operates the National Hydrological Monitoring Programme (for the UK) in conjunction with the British Geological Survey. NHMP scientists produce the UK Monthly Hydrological Summary which assesses rainfall, river flows, groundwater and reservoir levels. They also operate the UK’s National River Flow archive. The NHMP also has a remit to analyse major flood and drought events in the UK and analyse long term trends in UK hydrological data. The UK Monthly Hydrological Summary is published on, or before, the tenth working day, of the following month. A Hydrological Outlook for the UK is also available.

 

Additional information

Read the full June 2014 Hydrological Summary for the UK. [PDF, 1.99MB] 

Hydrological summary archive - dating back to December 1988

Details of the National Hydrological Monitoring Programme

Latest Hydrological Outlook for the UK

National River Flow Archive

Media enquiries related to the Hydrological Summaries should be directed to the CEH Press Office. Our scientists can provide explanation and analysis of historic hydrological patterns, possible future scenarios under climate change and scientific understanding of the current situation. We are not able to comment on immediate operational issues.

If you wish to reproduce figures from the Monthly Hydrological Summary please respect the copyright credits contained within the document.

Key for river flows graphic:

Key for riverflow graphic

 

You can follow the latest developments in CEH research via Twitter and our RSS news feed.

Issues: