Total rain for an area, or several added together. The dark line is what radar measured. Each forecast run starts from what had already fallen by its run time, so past runs show how they did and the newest show what is still to come.
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Rain since the chart starts
Times are GMT.
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Line
Total shown
Forecast so far
Radar, same hours
Difference
Area
Pick two or more to treat them as one area. Or click areas on the map.
Radar: British Crown copyright Met Office ODIM H5 composite (1km) - CC BY-SA 4.0.
DMI Harmonie: DMI HARMONIE-AROME Europe 2 km deterministic – Danish Meteorological Institute (DMI), CC BY 4.0, via Open-Meteo Open Data
ECMWF HRES: ECMWF HRES (IFS) deterministic forecast – CC BY 4.0, ecmwf.int
ECMWF AIFS: ECMWF AIFS Single 0.25° deterministic (machine-learned forecast model) – CC BY 4.0, ecmwf.int, via Open-Meteo Open Data
NOAA GFS: NOAA Global Forecast System (GFS) 0.13° deterministic (precipitation) + 0.25° (MSLP) – U.S. Government work, public domain, via Open-Meteo Open Data
NOAA AIGFS: NOAA AIGFS 0.25° deterministic (machine-learned forecast model) – U.S. Government work, public domain, via Open-Meteo Open Data
Met Office Global: Met Office Global (Unified Model) 10km deterministic – British Crown copyright Met Office, via Open-Meteo Open Data – CC BY-SA 4.0
Boundaries: ONS, Open Government Licence v3.0. Catchments: National River Flow Archive (2014). NERC Environmental Information Data Centre. doi:10.5285/1957166d.
A new map of every river level gauge the Environment Agency, Natural Resources Wales and SEPA publish, updated every 15 minutes. Each gauge is judged against its own history, from low to exceptional, and each catchment is shaded by how its rivers are responding as a whole. Scrub back through the last two weeks, or open any gauge for its own page with its chart, thresholds and nearby gauges. The homepage now carries a River Levels card with the catchment map and the ten highest gauges.
Compare any model against radar, with a full-page chart
The forecast against radar comparison map now works with every model: UKV, DMI Harmonie, ECMWF HRES and AIFS, GFS, NOAA AIGFS and Met Office Global. Open any area and choose Open full chart to see its rain over time on one large chart: what radar measured, and each forecast run starting from what had already fallen by its run time. Compare the latest runs of one model, or several models side by side, and share the view as a link. The full chart covers runs from 12 October onwards.
Useful?Thanks
New8 Oct
Leave out unreliable rain gauges
Every rain gauge map and table now has a Quality control switch. Turn it on and gauges that the rain gauge check judges likely faulty, such as blocked or stuck ones, are left out of the map, the lists and the totals, for whatever period you are looking at. A small note beside the switch says how many were left out. It is on by default, and you can turn it off.
This application brings together real-time data from multiple sources to help you stay
informed about weather and flood conditions across the UK.
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Important
This application is unofficial and provided for informational, research, and analysis purposes only. Uptime, data completeness, and real-time accuracy are not guaranteed.
To avoid over-reliance during active weather or flood events, do not make safety-critical decisions using this tool. For official warnings and instructions, consult the primary public services directly:
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