Overview terrain: AWS Terrain Tiles (SRTM, GMTED2010, ETOPO1 and others). Cloud, rain and isobars are the model's own.
Temperature anomaly: the model's 2 m temperature less the 1990 to 2019 normal for that date and hour (ERA5, Copernicus Climate Change Service, set to the Met Office HadUK-Grid 1991 to 2020 monthly averages over the UK).
About this data
NOAA GFS forecast:NOAA Global Forecast System (GFS) 0.13° deterministic (precipitation) + 0.25° (MSLP) – U.S. Government work, public domain, via Open-Meteo Open Data
Model runs:Four runs a day (00, 06, 12 and 18 GMT). GFS itself reaches 16 days; this feed is cut at 7 to keep a run to a workable number of frames, so every run here is the same length and none is marked short. Steps are hourly to T+120h and 3-hourly after that.
Trial pipeline: this feed is built by a second, newer data pipeline (a small always-on server rather than the site's usual scheduled jobs), run alongside the existing one to see how well it holds up. The freshness dot above shows how old its newest data is.
Deterministic, not a probability: this is a single model solution, so it shows one possible outcome rather than a range. Treat it as guidance on pattern and timing, not as a forecast of exact totals at a place.
Comparing models: all seven render to the same map extent with the same colour scale, so a colour means the same millimetres whichever is selected. Differences you see between them are the models disagreeing, not the maps being drawn differently.
Isobars (MSLP): on by default, drawn as pressure lines over the rainfall; switch them off behind the settings button on the controls bar (or on the bar itself, on a wide enough screen). H/L pressure centres are labelled with their central pressure in hPa.
More for this model:
Catchment boundaries: National River Flow Archive (2014). NERC Environmental Information Data Centre. doi:10.5285/1957166d.
Two new buttons sit at the foot of the map buttons on the radar and model pages. Search finds a town or postcode and drops a pin, or use your location, or press and hold anywhere on the map. Measure draws a line to give the distance and bearing, or choose Diameter to click a centre and an edge and read the radius, diameter and area. Distances can be in km, miles or nautical miles, and points snap to your pin.
A new button under the zoom buttons lets you set a level and show only what meets it, such as rain at or above 30 mm or gusts below a given speed. Or choose Custom colours to give each level its own colour, for example red from 30, amber from 20 and green from 10. A pill at the top of the map says when thresholds are on, and the key shows your levels. It works on weather observations, the Model Viewer and Model Multi (rain and wind), Radar and Radar Accumulation.
A new homepage: what has happened, and what is coming
The homepage now reads as a timeline. The live radar and satellite loop leads, and you can drag its slider past now into the next 24 hours of Met Office UKV forecast rain. The wettest gauge, top gust and warmest and coldest places of the last 24 hours are pinned on the map where they happened. Below, Recent history covers rainfall, river levels, observations, the week's flood warnings and how wet the ground is, and Look ahead sets out the next five days: flood risk, warnings, rain and peak gusts from several models, the tides, and whether the models agree.
Ask about this page or the wider UK picture. Answers come from the site's data; check anything that matters.
Questions and answers may be read by people to improve the replies. How Bert works.
Town forecasts: ECMWF IFS and Met Office UKV via
Open-Meteo open data;
places from GeoNames. Both
CC BY 4.0.
Please do not include personal or sensitive information.
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About Flood Forecast
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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