Significant wave height is the average of the highest third of the waves, about what a
person watching the sea would call the wave height; the biggest single waves are often
nearly twice as high. A longer period means swell from far away, which carries more
energy than the same height of short, wind-blown sea. The arrow on each buoy points the
way the waves are heading. Tap a buoy for its last 48 hours.
Catchments: National River Flow Archive (2014). Hydrometric areas for Great Britain and Northern Ireland. NERC-Environmental Information Data Centre doi:10.5285/1957166d-7523-44f4-b279-aa5314163237
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Thank you
Thanks to the person who suggested adding the wave buoys. Here they are.
When something significant is happening, a strip under the menu on the homepage says so: a named storm, an amber or red Met Office warning, the Flood Guidance Statement at medium or high risk, or a Severe Flood Warning. The most serious leads, and each links straight to its details. It says when the warnings were last checked, folds down to one line, and is not shown on a quiet day.
The homepage map, Radar & Sat and Satellite now show lightning from the Met Office's ground network by default, as rings coloured by age that stay on the map for an hour, so a storm's track is easy to follow. EUMETSAT's satellite lightning is still in each map's settings.
On a phone, the key panel on the main map pages is now a slim title bar under the menu, which leaves more of the map showing. Folding the bottom panel, on any screen, keeps the play button, the time slider and the date, and hides the drop-downs, so you can still scrub the timeline.
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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