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on making your device easier to use if you have a disability. How accessible this mobile application is We know some parts of this mobile application are not fully accessible: Our rainfall, cloud and surface pressure and UK warnings maps do not have a text alternative. They also cannot be used

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for weather information such as temperature, rainfall and wind gusts as well as UV and pollen levels. You can also find surface pressure charts which will show you high and low pressure patterns. See the up to date presented forecast on YouTube If you are a media outlet you can recieve a twice daily

 for weather information such as temperature, rainfall and wind gusts as well as UV and pollen levels. You can also find surface pressure charts which will show you high and low pressure patterns. See the up to date presented forecast on YouTube If you are a media outlet you can recieve a twice daily

below 5,000 ft y - Email y y Cloud 5,000 to 15,000 ft y - SMS y y Solar radiation y - USER ACCOUNTS Surface pressure y - Maximum number Unlimited 10 Jet stream y - Significant wave height y -

on our Surface Pressure Chart page. If you want to know more, please see our factsheets on air mass and weather charts. Cold Front The leading edge of an advancing colder air mass. The front is usually associated with cloud and precipitation, followed by a drop in temperature and/or humidity once

position north of the equator. These factors mean that we experience a large number of frontal systems and their associated weather. Most of the frontal systems that affect the UK are formed out over the Atlantic Ocean and move in a west to east direction. Met Office surface pressure charts show

the risk of cold winters. However, warming could also cause air to rise over the Arctic. This would lead to lower surface pressure in that region, which would promote increased mid-latitude westerly winds and a positive NAO. This would correspond to a reduced risk of cold winters. The relative

forecast page. Symbol Category No significant pollen Low Moderate High Very high No data Pressure symbols These pressure symbols are not used on our weather forecast table but you can see them on our Surface Pressure Chart page. If you are interested to know more, please see our factsheets on air mass

Seasonal forecasts rely on aspects of the global weather and climate system that are predictable. These are known as climate drivers and include tropical sea-surface temperatures and pressure patterns over the North Atlantic. The predictable effects of climate drivers act alongside inherently