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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

. 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

for much of England, especially the south-west, and also south Wales, but elsewhere cloud was more variable. The second half was generally more unsettled with frequent westerly and south-westerly winds, but with an exceptionally hot spell from the 22nd to 26th which saw record-breaking temperatures

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

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

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

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

. 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

Friday will begin dry and fine for many areas, with long spells of sunshine. However, the sunshine will become increasingly hazy as the day progresses. Eastern and southeastern England may see more cloud, with some showers likely during the morning, but these will fade into the afternoon, allowing

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