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stations on land, ships and balloon ascents. The first satellites which observed the atmosphere were the TIROS class of satellite which imaged the Earth from a low Earth orbit showing the position of clouds in rather fuzzy images. TIROS-1 was launched in 1960 and was the first dedicated

and east, where temperatures could feel really quite warm for spring, pushing into the low 20s C - although even here there may be the odd shower, and persistent low cloud in coastal areas will keep them cooler.  Temperatures will be on the rise across many parts of the UK as we head towards

Saturday will begin with low cloud lingering across central and eastern areas, but this will lift and break through the morning, giving way to increasing amounts of sunshine by the afternoon. Elsewhere, conditions will be mainly sunny throughout the day. Temperatures will be very warm in the west

as well as Northern Ireland, accompanied by breezier conditions and average temperatures. Wednesday evening will see showers in central and northern Scotland and Northern Ireland fading, but thickening cloud and outbreaks of rain and drizzle in the far northwest moving slowly southeast. Elsewhere

A rather unsettled start to Wednesday is expected, with extensive cloud cover and scattered showers across central and northern regions. A band of light rain and drizzle will persist through the morning, stretching from South Wales into the Midlands. The far northwest will continue to see

, with cloud perhaps thick enough to bring patchy rain or drizzle. Winds will be light for most but will strengthen in the far northwest as the day progresses. High pressure’s back (briefly) 👀 - Warmer & more settled on Friday and Saturday ☀️ - Humidity climbs Saturday night💧 - Low pressure returns

Saturday begins with a band of rain and drizzle gradually moving northeast through the day, lingering across Scotland into the evening. Ahead of this, patchy fog and low cloud will become increasingly confined to the Northern Isles. For much of Northern Ireland and southern and southeastern England

who adopt a more conservative approach. Unlike the SQI more than one category threshold is used by the GSS (see table 1). The Met Office assess all the TAF cloud base and visibility categories defined by ICAO. At the time of writing, the following categories are used for TAF assessment: Surface

adopt a more conservative approach. Unlike the SQI more than one category threshold is used by the GSS (see table 1). The Met Office assess all the TAF cloud base and visibility categories defined by ICAO. At the time of writing, the following categories are used for TAF assessment: Surface

those who adopt a more conservative approach. Unlike the SQI more than one category threshold is used by the GSS (see table 1). The Met Office assess all the TAF cloud base and visibility categories defined by ICAO. At the time of writing, the following categories are used for TAF assessment: Surface