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. Radio waves emitted from a radar antenna travelled outwards at the speed of light, only bouncing back to the same antenna when they encountered an object. When the weather was clear, radar could quickly provide intelligence on the position of aircraft in the sky. When it was raining or snowing, echoes

in the atmosphere, typically between 80 and 300 kilometres above the Earth’s surface. To see them, clear, dark skies are essential. Even thin cloud can obscure the subtle colours and movements of the aurora, while thick cloud makes sightings impossible. Light pollution from urban areas further reduces

Thursday will begin with residual showers and isolated thunderstorms lingering across the southeast, gradually clearing through the morning. Western areas will see scattered, mainly light showers developing later in the day. Across central and eastern Scotland, and possibly far northeast England

settled conditions across much of the UK, with most areas enjoying dry weather and sunny spells. Temperatures will be close to the seasonal average, though it will feel pleasantly warm in the sunshine, especially where winds remain light. Eastern and southeastern England may see more in the way of cloud

Governmental involvement. 1. RETURNS, REGISTERS, LOGS AND SUMMARIES — COLLATED DATA  Daily Registers  Climatological Returns  Lustrum forms  Ship, light vessel and light house logs Rainfall cards  Ten year rainfall books Daily Weather Summaries  Monthly Weather Summaries  British Rainfall  2. PRIVATE WEATHER DIARIES 3. AUTOGRAPHIC RECORDS 4. CHARTS 5. FORECAST INFORMATION 

from the week of wintry weather from 7th February. On 7th and 8th eastern coastal counties of England were affected by snow, particularly across the south-east. Some covid vaccination centres were closed in Suffolk and Essex due to snow, with road traffic collisions, fallen trees and dangerous driving

conditions taking hold in the August to October period (60% likelihood in NOAA forecast). While forecasts looking this far ahead are inherently uncertain, particularly when issued at this time of year, there is a consistent message emerging from many international modelling centres. Much More Likely Below

% likelihood in NOAA forecast). While forecasts looking this far ahead are inherently uncertain, particularly when issued at this time of year, there is a consistent message emerging from many international modelling centres. Much More Likely Below Normal Near-Normal Above Normal Likely Likely Much More

. There are some mixed signals from various modelling centres regarding the evolution of ENSO later this year. However, ENSO is most likely to remain neutral through the next three months. More information on typical impacts can be found here: https://www.metoffice.gov.uk/research/climate/seasonal-to-decadal/gpc

that both oceanic and atmospheric indicators reveal borderline La Niña conditions still remain across the equatorial Pacific. Both NOAA and the Bureau of Metrology in Australia (BoM) state that La Niña is currently present. According to the latest forecasts from the WMO Global Producing Centres