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, particularly over coastal areas and hills where it brings low clouds, drizzle and local hill fog. Judging from the number of isobars the gradient wind does not seem to be an issue but the complexity of the frontal system over the Atlantic indicates that conditions will deteriorate quickly

Weather Forecasting  - helping you to understand the facts. The Met Office holds the nation's weather and climate records. Our UK climate and weather statistics will give you summaries, climate figures and much more. Latest Met Office guides and information on climate change.   Cloud Types

History Version Issue Date Change Description Owner V1 April 2019 New document D Hardy V2 July 2021 Replacement of AIRMET with GAMETs D Hardy V3 May 2022 Removal of EURO Forecast precip rate, Forecast precip type, Forecast vis & Forecast total cloud weather may layers D Hardy © Crown copyright 2021

to the formation of cumulonimbus clouds, towering, dense clouds capable of producing heavy rain, hail, and lightning. Lightning is a massive electrical discharge caused by the separation of positive and negative charges within a storm cloud. As the storm develops, ice particles and hailstones collide

Whernside during the late morning and early afternoon. Snow level around 300m. Chance of cloud-free hill tops above 600m: 25% becoming 40% late morning and early afternoon Low Cloud and visibility: Moderate or poor in rain, very poor in snow and within cloud with bases quite extensive from around 500m

800m at dawn, lowering 400m from mid-day. Chance of cloud-free hill tops above 600m: 10-20% Low cloud and visibility: Moderate or poor in rain, very poor in snow and within cloud with bases extensive from around 500m Check our weather forecast every day to get the most accurate and up to date

. Breezy conditions will persist, and temperatures will hover near or slightly below seasonal averages. Monday night will see a shift to drier conditions for many, though showers in the north will drift southward, concentrating along North Sea coastal counties. Cloud cover will increase in the far

. Chance of cloud-free hill tops above 600m: 10-20% becoming 30% late morning and early afternoon Low cloud and visibility: Moderate or poor in rain, very poor in snow and within cloud with bases quite extensive from around 500m across eastern areas of the Park. Check our weather forecast every day

the air stable, rather than cold and moist. Low cloud and poor visibility may be very persistent under such conditions. • The record breaking temperatures of August 2003 were caused by a tropical continental air mass. Summer Winter Temperature: Very warm or hot Average Humidity: Relatively dry Rather

also see isolated highs above 30°C. Elsewhere, temperatures will generally range from the low to mid-20s Celsius, with Shetland remaining cooler in the mid to high teens. Coastal areas, particularly in southwest England and Wales, will feel cooler compared to Tuesday. Medium-level cloud may produce