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Areas of high and low pressure are caused by ascending and descending air. As air warms it ascends, leading to low pressure at the surface. As air cools it descends, leading to high pressure at the surface. In general, low pressure leads to unsettled weather conditions and high pressure leads to settled weather conditions.
Check the meaning of the abbreviations used in our aviation forecasts and warnings. Click on any letter to find the abbreviation you need.
How does the AMOC work? The AMOC is a large system of ocean currents, like a conveyor belt, driven by differences in temperature and salt content – the water’s density. As warm water flows northwards it cools and some evaporation occurs, which increases the amount of salt. Low temperature and a high salt content make the water denser, and ...
These Met Office forecasts include the effects of: the position of the sun in the sky; forecast cloud cover; ozone amounts in the stratosphere. The solar index does not exceed 8 in the UK (8 is rare; 7 may occur on exceptional days, mostly in the two weeks around the summer solstice). Indices of 9 and 10 are common in the Mediterranean area.
You can find it underneath the forecast table, below the map and flood warnings. The time displayed in the table shows the forecast data for that specific moment in time, on the hour, for most quantities. For example, a temperature of 10°C shown at 10:00am is the temperature we expect at that moment. The weather symbol, chance of precipitation ...
The Met Office’s CHEMET service is used to track the dispersion of a chemical release. In the event of an incident involving hazardous chemicals, local Fire and Police services will contact the Met Office Environment Monitoring and Response Centre (EMARC). Typical scenarios could be a chemical spillage, a fire at a chemical plant or oil ...
18 hours ago · Our weather symbols tell you the weather conditions for any given hour in the day or night. This means that the symbol for 9am shows you what you will see from 9am to 10am. Chance of precipitation represents how likely it is that rain (or other types of precipitation, such as sleet, snow, hail or drizzle) will fall from the sky at a certain time.
