River flow gauging station on the river Kennet Catchment land use

News Archive

NRFA launches new Peak River Flow Data Service to replace HiFlows-UK - 11 April 2014

Flooding on the Thames at Wallingford in January 2014In April 2014, responsibility for the provision of UK national flood peak data was transferred from the former HiFlows-UK initiative hosted on the Environment Agency’s website to the NRFA. Details of the launch of this new NRFA service can be found in this Briefing Note.
Information about how to use the new service, can be found here.

 


UK Hydrological Summary for March 2014 published - 11 April 2014

After a tempestuous winter, weather patterns in March were more typical of a normal early spring. It was a notably mild month and rainfall totals were in the normal range at the national scale but generally below average across southern Britain and particularly dry in some eastern areas.

Further details can be found here.


UK Hydrological Summary for February 2014 published - 14 March 2014

Like much of the previous two months, February was exceptionally wet, thus bringing to a close the wettest winter in the England & Wales rainfall series (from 1766). Inland, fluvial flooding continued to intensify in the first fortnight, with widespread flood warnings (including severe flood warnings) and extensive floodplain inundation

Further details can be found here.


UK Hydrological Summary for January 2014 published - 14 February 2014

The intensely cyclonic conditions of late-December continued into January. With heavy rain falling on already saturated ground, flood alerts were widespread and sustained through January. Average flows during the month were exceptional in many rivers, but peak river flows were generally not exceptional; rather, January was notable for the persistence and spatial extent of floodplain inundation, particularly from large, slowly responding rivers and in low-lying areas such as the Somerset Levels.

Further details can be found here.


The recent storms and floods in the UK - new report - 09 February 2014Recent Storms and Floods in UK - cover of Met Office and CEH report

Scientists from the NHMP contributed to a joint Met Office and Centre for Ecology & Hydrology report on the recent storms and floods in the UK. The report documents the record-breaking weather and flooding, considers the potential drivers and discusses whether climate change contributed to the severity of the weather and its impacts.

Further details can be found here.

 

 

 


UK Hydrological summary for December 2013 published - 15 January 2014

After a dry start, December was exceptionally stormy, with wet and very windy conditions intensifying towards year‑end.  The storms caused widespread disruption and floodplain inundations were widespread and remarkably sustained.

Further details can be found here.


NRFA highlighted in UNESCO Publication - 14 January 2014Free Flow: Reaching Water Security Through Cooperation

The NRFA’s role as the UK focal centre for hydrometric information was highlighted in a recent book published by UNESCO for the International Year of Water Cooperation. The chapter entitled ‘Sharing water observations: turning local data into global information’, authored by Dr Harry Dixon et al. drew on the experiences of the NRFA to explore the issues around international hydrological data sharing. The article and full book are available on line at http://digital.tudor-rose.co.uk/free-flow/#306.

 

 


Interim update on the UK's hydrological situation - 06 January 2014

Terry Marsh, the leader of the National Hydrological Monitoring Programme, has published an interim update on the UK's hydrological situation. The information adds to the detail in the most recent Hydrological Summary (for November 2013). The next monthly summary will be published on or before 15 January 2014.

Further details can be found here.


UK Hydrological summary for November 2013 published - 11 December 2013

November was typically autumnal with contrasting synoptic patterns, and colder and drier conditions prevailing by the end of the month. Notwithstanding the dry spell which commenced in the second week, the water resources outlook for the UK remains healthy.

Further details can be found here.


UK Hydrological summary for October 2013 published - 14 November 2013

October 2013 was the wettest October for England & Wales since 2000 and for arts of southern England, as much rainfall fell in October as in the previous four months combined. Rivers responded to persistent rainfall from mid-month, although the early-October backdrop of moderately depressed flows and very high soil moisture deficits largely restricted impacts to moderate floodplain inundations rather than extreme high flows.

Further details can be found here.


"Hydrometric Data: The Long View" NOW ONLINE - 06 November 2013

Presentations and posters from the "Hydrometric Data: The Long View" meeting held on 22nd October 2013 are now available on the NRFA website.

Further details can be found here.


New Map of UK Gauging Stations published - 25 October 2013

NRFA Gauging Station Map 2013A new map of the UK Gauging Station Network has been produced by the NRFA. The map, which shows the locations of all gauging stations on the river network, can be downloaded here.

A limited number of printed copies are available for free, please contact the NRFA to obtain a copy.

 

 

 

 

 

 


Report on 2010-12 drought and subsequent extensive flooding published - 21 October 2013

2010-12 drought and transformation

Drought conditions developed through 2010, intensified during 2011 and were severe across much of England & Wales by the early spring of 2012. Record late spring and summer rainfall then triggered a hydrological transformation that has no close modern parallel.

The comprehensive report on this remarkable three-year period can be found here.

 

 

 

 

 


UK Hydrological summary for September 2013 published - 14 October 2013

Monthly rainfall totals were generally modest throughout the UK in September, mostly 50-80% of average, but with a few notable storm events and isolated flood alerts. The overall water resources situation is healthy, although some areas may see a delay in the seasonal recovery of river flows and aquifer recharge rates.

Further details can be found here.


"Hydrometric Data: The Long View" MEETING NOW FULL (22 October 2013) - 23 September 2013

Hydrometric Data: The Long ViewTHIS MEETING IS NOW FULL.

A free one-day meeting will be held at CEH's site at Wallingford, Oxfordshire on 22 October 2013 to celebrate 30 years of the National River Flow Archive and National Groundwater Level Archive being hosted in Wallingford by NERC. The meeting will review the achievements of the archives and the exploitation of this rich hydrological data resource by its broad user community.

Places are limited so please register by 20 September 2013. Further details and registration form can be found here.


UK Hydrological summary for August 2013 published - 13 September 2013

August was a mixed month, with spells of good summer weather occasionally punctuated by unsettled weather, with some locally intense downpours.Some of the highest rainfall totals were in northern and western areas, bringing runoff recoveries in responsive catchments; as such, August river flows across most of the UK were in the normal range.

Further details can be found here.


UK Hydrological summary for July 2013 published - 14 August 2013

July 2013 was a month of contrasts with hot, arid conditions followed by a very unsettled period with intense downpours and localised, mostly urban, flooding. Runoff rates recovered rapidly in most areas; helping to ensure that early August reservoir stocks were within 10% of the long-term average in most index impoundments.

Further details can be found here.


UK Hydrological summary for June 2013 published - 12 July 2013

With reservoir stocks and groundwater levels predominantly average to above average across the country, the water resources outlook remains healthy, although continued settled weather patterns over the coming months may cause locally depressed summer flows in responsive catchments, and the rapid increase in soil moisture deficits will likely delay the onset of river flow and groundwater recovery in the autumn.

Further details can be found here.


UK Hydrological summary for May 2013 published - 17 June 2013

May had a distinctly autumnal feel, continuing a pattern of below average temperatures that has persisted throughout spring 2013, while the majority of the UK received above average rainfall.

Further details can be found here.


UK Hydrological summary for April 2013 published - 15 May 2013

April was a notably cool month with rainfall close to the long-term average at the national scale – but spatial variations in precipitation totals were large and appreciable deficits have become established in some regions over the first four months of 2013.

Further details can be found here.


UK Hydrological summary for March 2013 published - 17 April 2013

March 2013 was the coldest for the UK since 1962 and saw precipitation totals generally slightly below average, but with marked regional variations. The general water resources outlook remains healthy, but late spring rainfall will be very influential in determining the onset of the seasonal recessions in river flows and groundwater levels.

Further details can be found here.


UK Hydrological summary for February 2013 published - 14 March 2013

Although February was a cold and relatively dry month, with precipitation totals below 50% in a few areas, at the national scale, winter (December-February) rainfall totals were generally above average and there is a continuing risk of groundwater flooding in vulnerable areas.

Further details can be found here.


UK Hydrological summary for January 2013 published - 14 February 2013

Monthly precipitation totals were mostly within the normal range across the UK in January but sustained frontal rainfall, often augmented by snowmelt, in the final week of the month triggered a further episode of extensive floodplain inundations.

Further details can be found here.


UK Hydrological summary for December 2012 published - 16 January 2013

The water resources outlook for 2013 is very healthy but, with soils saturated across the UK, there is high risk of further flooding in the late winter and early spring of 2013. With several months of the recharge season left, and a considerable amount of water still draining through the unsaturated zone, more extensive groundwater flooding is probable given the high levels in the Chalk.

Further details can be found here.


UK Hydrological summary for November 2012 published - 13 December 2012

Across much of the country the remarkable hydrological transformation since the severe drought conditions of the early spring was reinforced through November. Regional variations in rainfall have been large over the last eight months but for Britain as a whole the April-November rainfall is the highest in a series from 1910.

Further details can be found here.


New NRFA download service for NRFA catchment boundary data - 26 November 2012

Map export exampleThe NRFA has released a new service allowing users to download catchment boundary data for UK gauging stations. Available via the ‘spatial data’ table on each gauging station page, the new service has been developed alongside the export facility for catchment maps which was launched in May 2012.

View an example spatial data page to try it out.

Find a station of interest using our gauging station search page.


UK Hydrological summary for October 2012 published - 14 November 2012

Entering the late autumn/winter period (typically the main season for replenishment, but also when flooding is most likely) the water resource outlook is healthier than at the equivalent time in any of the last 25 years at least, due to the exceptional rainfall accumulated since April.

Further details can be found here.


2011 river flow data available from NRFA - 7 November 2012

Station 27032Following completion of the annual submission and data quality control programme, river flow data from 2011 is now available for some gauging stations on the NRFA. Data from other gauging stations will follow once data validation and processing is complete.

Find a station of interest using our gauging station search page.


2010-12 drought and its dramatic termination - 17 October 2012

In the UK, 2010-12 has witnessed a remarkable transformation from multi-year drought to its dramatic termination, with no modern parallel. A comprehensive report on this transformation is currently being compiled.

Read the briefing note here.


UK Hydrological summary for September 2012 published - 12 October 2012

Provisional data suggest that September river outflows from England and Wales were the second highest since 1968 and the associated extensive flooding provided a dramatic climax to the wettest summer half-year (April-September) on record for the UK.

Further details can be found here.


UK Hydrological summary for August 2012 published - 14 September 2012

Road Flooding

August was another rather wet and relatively dull month contributing to the wettest summer since 1912; rainfall accumulations since March are even more outstanding across much of England & Wales.

Further details can be found here.


UK Hydrological summary for June 2012 published - 17 July 2012

Road Flooding

The substantial rainfall since March and attendant runoff response have contributed to a generally favourable water resources outlook for summer 2012, with an increase in reservoir levels leading to England and Wales stocks 3% above average entering June.

Further details can be found here.


UK Hydrological summary for May 2012 published - 16 June 2012

River Meadow

The substantial rainfall since March and attendant runoff response have contributed to a generally favourable water resources outlook for summer 2012, with an increase in reservoir levels leading to England and Wales stocks 3% above average entering June.

Further details can be found here.


NRFA hosts Future Flow data - 17 May 2012

Gauging station on the river Leam

The National River Flow Archive is now hosting the outputs of the Future Flow and Groundwater Levels project. The project has modelled river flows at 276 NRFA gauging stations using the latest climate projections from the UK Climate Impact Programme to assess the impact of climate change on river flows across England, Wales and Scotland, producing an 11-member ensemble projection of 148 years (1951-2098) of daily river flow time series at each station.

More information about the project can be found here.

A list of gauging stations with modelled data from the Future Flows project can be found here.


Export a gauging station catchment map: new website functionality - 17 May 2012

Map export example

Users of the National River Flow Archive website can now produce high-quality gauging station catchment maps. Once a map is defined within the station's spatial data page it can be exported to pdf or png suitable for placing in reports or presentations, or printing.

View an example spatial data page to try it out.

Find a station of interest using our gauging station search page.


UK Hydrological summary for April 2012 published - 17 May 2012

River Meadow

The wettest April in the last 100 years, and the coldest since 1989, served to greatly moderate drought conditions in parts of the UK, with the focus of short-term hydrological concern switching rapidly from drought stress to flood risk. This brought associated problems, including the ecological impact of wetland inundations.

Further details can be found here.


UK Hydrological summary for March 2012 published -17 April 2012

River Meadow

March was an exceptionally mild month and the driest for the UK since 1953. Most of the country reported less than half the average rainfall, further intensifying the drought and extending its spatial range. Accumulated rainfall deficiencies now extend over 24-27 months across the English Lowlands and are of a magnitude expected, on average, only around once every 20-30 years.

Further details can be found here.


UK Hydrological summary for February 2012 published - 15 March 2012

River Lambourn February 2012

February was a further month when synoptic patterns greatly restricted the passage of Atlantic frontal systems across most of southern and eastern Britain. Correspondingly, drought conditions intensified at a critical time in relation to the water resources outlook.

Further details can be found here.


Monthly hydrological summary for December 2011 published2011 rainfall

16 January 2012

Meteorologically, 2011 was a remarkable year: it was the second warmest in the UK temperature record (from 1910) and was notable for extreme regional disparities in rainfall receipt – with continuing drought conditions in the English Lowlands contrasting dramatically with Scotland, which had its wettest year on record.

Further details can be found here.


River flow data for 2010 released Gauging station on the river Leam

11 January 2012

Following completion of the NRFA quality control process, UK river flow data for the calendar year 2010 is now available on the NRFA. This data can be accessed through the normal Data Retrieval Services.


Monthly hydrological summary for November 2011 publishedClouds

13 December 2011

November was a remarkably mild month across most of the UK but synoptic patterns again produced a very substantial exaggeration in the North West/South East rainfall, the new monthly Hydrological Summary for the UK shows.


Additional river flow records available for downloadMap of NRFA stations accessible via the NRFA website

9 November 2011

The NRFA has increased the number of gauging stations for which river flow data can be downloaded from the NRFA website to around 400 sites. Further details can be found here. Information about accessing NRFA data can be found here. A full list of sites for which data is available can be found here. Data for all other stations held on the NRFA continues to be available via the Manual Data Retrievals Service.