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Met Office daily weather: Warnings in force as winter arrives early

. The southeast will start cloudier but should see steady improvement. Later in the afternoon and evening, cloud and outbreaks of rain, initially falling as hill snow in Scotland, will move into Scotland and Northern Ireland. Winds will remain light to moderate, and it will be widely cold. Met Office presenter

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What is the weather forecast over Christmas?

the influence of high pressure. The exception however may be northwest Scotland where there is a reasonable chance of further wind and rain. “Christmas Day itself is likely to be settled, often cloudy, and dry with light winds for the majority. Once again, the far north may be windier, with a small chance

Met Office weather: Warm sunshine for many, rain in the north

, but it is going to be weakening as it does so. So increasingly, that rain will be fairly light and patchy. There'll be some sunny spells developing up towards the north and west, with a scattering of showers and quite prolonged sunshine still holding on down towards the south and east. “It's here where

Relative operating characteristic (ROC)

yellow, orange and red respectively - and indicate regions with relatively good seasonal prediction skill. Regions with ROC score between 0.6 and 0.7 show skill at lower levels but still better than guessing or use of climatology. Grey or light blue shading is used when scores are below 0.6 (i.e. near or below to the 0.5 'no-skill' threshold, suggesting forecasts in these regions are currently little better than guesswork).

sesar_polygons_guidance_v1.1july2022.pdf

- this is the T+ n timestep • Forecast validity time - the time the forecast is valid for, calculated from the forecast reference time + forecast period • Severity value (1 = light, 2 = moderate, 3 = severe) • Vertical height as pressure levels • Polygon unique identifier (order in which polygons are generated

uk_monthly_climate_summary_201807.pdf

and west with isolated showers in the far north. The night of the 6th/7th was cold in some places with a minimum of 0.9 °C at Tulloch Bridge (Inverness-shire), followed by another warm dry sunny day for most. The 8th and 9th were generally cloudier, with isolated patches of light rain, but it remained

Sea ice: an overview

autumn. This seasonality is caused by the amount of sunlight reaching the polar regions of the Earth which are virtually dark for 4 months over winter and light throughout the day for much of the summer. During the winter, in the absence of any sunlight, the sea ice insulates the ocean from

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