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� faster � earlier arrival time CAT derived parameters Lat = 16° Lon = -12° Width = 36° (-6.5) Speed = 1271 km/s Model run predicted arrival: 2014-09-11 02:00 Actual shock arrival time: 2014-09-11 22:58 Error: -20:58 (horrible) 23 Can we use radio bursts to constrain CME speed? • Study of Type II radio

warnings UK Storm 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

warnings UK Storm 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

the afternoon, but it remained mainly dry elsewhere. The 21st saw a lot of cloud, with bands of rain pushing north-eastwards, including some heavier bursts, but the far south-west became brighter with sunny spells, triggering several thunderstorms, and isolated thunderstorms developed later in the West

at first, before further showery precipitation moved into western and northern parts during the afternoon, but it remained mainly dry elsewhere. The 21st saw a lot of cloud, with bands of rain pushing north-eastwards, including some heavier bursts, but the far south-west became brighter with sunny

, with thundery showers likely and a possibility of some heavy bursts of rain, with around 25mm of rain possibly falling within an hour in some spots. Whilst there is a chance of this risk extending into parts of Wales and perhaps the southwest of England on Friday afternoon the majority

to almost 6 metres, around 4 metres higher than average, with the River Seine bursting its banks. Looking ahead through February and the month is getting off to a cold start. Temperatures will be below average to end the working week with some showers too. Then after a slightly milder but also wet Saturday

Luke Howard, On the Modification of Clouds 1803

Howard, an amateur meteorolgist and professional pharmacist, devised the cloud classification scheme the basis of which is still in use today. The complete volume is available from our Digital Library & Archive. Howard was keen that his naming convention should bear no resemblance to any religious

The representation of clouds in weather and climate prediction.

Clouds redistribute heat and moisture through the atmosphere, as well as producing precipitation at the surface and reflecting solar radiation back out to space.  Their evolution can be very complex due to the interactions between the clouds themselves, radiation and fluid dynamics. Clouds act