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Rebecca Murray-Watson and Emilie Fons Clouds in N2560 RAL3p3 simulations are more reflective than other GSRMs and CERES. Profile plot above shows additional ice in RAL3p3 – cloud fraction is largely similar to other GSRMs and UM CoMA9 and GAL9 First looks from WCRP global km-scale hackathon UM CTC 4.4

prescribed sea surface temperatures. It is recommended to base the simulations on the OSTIA sea surface temperature analysis, or a similar product. 8. Cloud droplet number concentrations Aerosol or CCN concentrations are not specified. We suggest, however, to fix the cloud droplet number

energy caused by wind shear) of turbulence which is used to show dynamic stability and the formation of turbulence. 1 [YYYYMMDD]T[hhmm]Z-PT[nnnn]H[mm]M-bulk_ richardson_number.nc 3-hourly (0-144) 6-hourly (150-168) Instantaneous cloud amount below 1000ft ASL Fraction of horizontal grid square occupied

energy caused by wind shear) of turbulence which is used to show dynamic stability and the formation of turbulence. 1 [YYYYMMDD]T[hhmm]Z-PT[nnnn]H[mm]M-bulk_ richardson_number.nc 3-hourly (0-144) 6-hourly (150- 168) Instantaneous cloud amount below 1000ft ASL Fraction of horizontal grid square

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

. It became less settled from the 9th onwards, and on 13th/14th there were some large rainfall totals in upland areas of western/southern Scotland and north-west England. The middle part of the month saw generally larger cloud amounts, with spells of rain mainly for Scotland, but from around the 21st onwards

spells will break through, although a few showers are likely in the northwest. Elsewhere, much of central, southern, and eastern England, as well as the remainder of Wales, will experience variable and often large amounts of cloud. However, there will be some sunshine, particularly in eastern areas

Tuesday will bring variable cloud and sunny intervals for many areas. Showers are expected from the start in the west, gradually developing further east into the afternoon. Some of these showers could turn heavy at times, so it’s wise to keep an umbrella handy if you’re heading out. In northern

of England and northeastern Scotland will experience cooler, cloudier conditions due to onshore breezes. These areas may also see brisk winds, especially in the far east, which could temper the warmth felt elsewhere. Friday night will bring a shift in conditions for parts of the country. Low cloud

matrix www.metoffice.gov.uk © Crown Copyright 2025, Met Office Heathrow D-1 and D0 Graphs LVP threshold: Visibility <600 M www.metoffice.gov.uk © Crown Copyright 2025, Met Office Gatwick D-1 and D0 Graphs LVP threshold: Visibility <550 M Cloud ceiling <200 FT www.metoffice.gov.uk © Crown Copyright