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Pacific. 3-Month Outlook December to February - Rainfall The latest statement from the NOAA Climate Prediction Centre / NCEP states that “La Niña is likely to continue through the Northern Hemisphere winter 2020-21 (~95% chance during January-March) and into spring 2021 (~65% chance during March-May

of a La Niña event developing. 3-Month Outlook September to November - Rainfall According to CPC, the chance of La Niña developing in the period September-November is around 66%, rising to 74% in the early winter (November-January). However, other centres (such as BoM) have predictions which are much

temperature anomalies, trade wind strength, atmospheric pressure pattern and cloudiness all consistent with this. The event has likely recently peaked and a gradual shift into neutral conditions is likely, with the latest NOAA Climate Prediction Centre / NCEP statement (PDF) stating

and cloudiness all consistent with this. The event has likely recently peaked and a gradual shift towards more neutral conditions should take place during the first half of next year. However, over the next few months there is ~95% chance of La Niña continuing. The latest NOAA Climate Prediction Centre

'Eight kilometres' 9999 = 10 km or more; 0000 = less than 50 metres -SHRA 9 Significant changes FEW005 SCT010 SCTO18CB BKN025 'Light rain showers' 'Few at 500 feet, scattered at one thousand feet, scattered cumulonimbus at one thousand eight hundred feet. Broken at two thousand five hundred feet

, where outbreaks of rain and drizzle are expected. Some rain may also affect parts of Wales and the southwest for a time. Elsewhere, cloud cover will be more variable, with a few isolated showers breaking out later in the day. While most of these will be light, there is a low risk that some could

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

Thursday will begin with some early fog patches across western areas, but these will soon lift to leave a largely sunny day across much of England and Wales. Further north, Northern Ireland and particularly Scotland will see more in the way of cloud, with outbreaks of mainly light rain and drizzle

mph. 7th to 16th Most areas began cloudy on the 7th, with patchy light rain over north-east coasts and parts of the south and south-east, but by midday most areas were turning brighter with some sunshine, and warmer than of late. Cloud persisted over the north on the 8th, but other areas became sunny

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