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  • factsheet_11-interpreting-weather-charts_2023pdf

    conditions at each individual station can be represented on a surface chart by means of a station circle or triangle plot. The land station plot can represent all the elements reported from that station, typically examples are: • Air (dry-bulb) temperature • Dewpoint temperature • Atmospheric pressure

  • paper1_observing_changes_in_the_climate_system.pdf

    temperature alone. A number of ‘Essential Climate Variables (ECVs)’ have been defined by the Global Climate Observing System (GCOS) programme, and provide the broadest possible picture of the Earth’s climate. These include: � � � � � Atmospheric surface: air temperature, precipitation, air pressure, water

  • Volcanic Ash

    London VAAC: Volcanic ash advisories and graphics - archive

    Centre Seasonal advice Maps & charts Maps & charts UK forecast UK weather map Cloud cover map Precipitation map Lightning map Rainfall map Temperature map Wind map Wind gust map Surface pressure charts All countries Climate Climate Climate explained What is climate change? Causes of climate change

  • Hurricanes

    What is a hurricane? A hurricane is an area of low pressure over tropical or sub-tropical waters, with organised convection (i.e. thunderstorm activity) and sustained winds near the surface of at least 74 m.p.h. (and stronger gusts) circulating either anti-clockwise (in the northern hemisphere

  • factsheet_17-observations_over_land_2023.pdf

    associated with the typical low pressure and frontal systems that cross the UK to be recorded. Some weather features occur on smaller scales (for example thunderstorms) and may evade the surface network altogether. For the detection of these satellites and weather radars play an important role

  • 10_0230_fs_17_observations.pdf

    a static pressure head (figure 19), a device designed in such a way that the dynamical effects of wind are minimised. Figure 19. Static pressure head. Atmospheric pressure varies greatly with height, dropping near the surface by about 1 hPa (or 1 millibar) for each 10 m in the vertical. To make sense

  • factsheet_17-observations_over_land_2023pdf

    associated with the typical low pressure and frontal systems that cross the UK to be recorded. Some weather features occur on smaller scales (for example thunderstorms) and may evade the surface network altogether. For the detection of these satellites and weather radars play an important role

  • mwr_2024_05_for_print_v1.pdf

    the first week of May led to surface water flooding in Aberdeenshire, Leeds and Bradford. Settled weather moved in from the 7th as a high pressure centre took up residence close to the UK. Clear weather across the UK coincided with a major geomagnetic disturbance which led to widespread sightings

  • mwr_2024_05_for_print_v1pdf

    the first week of May led to surface water flooding in Aberdeenshire, Leeds and Bradford. Settled weather moved in from the 7th as a high pressure centre took up residence close to the UK. Clear weather across the UK coincided with a major geomagnetic disturbance which led to widespread sightings

  • Warmer weekend ahead after unsettled spell

    safety advice on our website and in the refreshed Met Office app, now featuring a dedicated beach forecast with tide times, wave heights and sea-surface temperatures, as well as guidance on UV and pollen levels. Next week’s outlook Into the early part of next week, high pressure is expected to linger

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