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of first forecast day 1, 2, 3, 4, or 5 DD e.g. = 01 for 1 st of the month 11. Month MM e.g. = 02 for February 12. Year YYYY e.g. = 2010 13. Wind Direction at noon – ID (Day 1) ‘N’,‘NNE’,‘NE’,’ENE’, ‘E’,‘ESE’, ‘SE’,‘SSE’, ‘S’,‘SSW’, N/A ‘SW’,‘WSW’, ‘W’,‘WNW’, ‘NW’ or ‘NW’ 14. Wind Speed at noon (Day 1

in a cool and dull July Author: Press Office 1 August 2024 Contrasting conditions in July, with some cooler than average temperatures, rain, cloud and even a heatwave, combined to make July 2024’s weather statistics close to average for the UK.   Cooler than average temperatures  Provisional Met

magnetic connectivity � some advance warning? ~6h here at 161° At L5 at 60° from S-E line? New developments Data assimilation primer �“analysis”: Model solar wind state brought closer to observations Put analysis into forecast model ENLIL Ability to provide a more accurate running forecast to end users

, consistent with wet bias in rainfall ● Ascent bias is halved in CP4 simulation, consistent with reduced wet bias Hart, Washington, Stratton (2018) GRL What of S. Africa in future CP4? Local Hadley cell seasonality change: CMIP5 Hadley cell seasonality change: SH New Puzzle with new CP4? 1. Original CP4

RAL3.3 S Amer Africa SE Asia “DYAMOND3” Takasuka et al (2024); Grey-scale = incomplete and not yet available Regional evaluation of resolution and physics dependencies Increasing model resolution 5/3 scaling Parametrised convection GPM Explicit convection Claudio Sanchez Results from earlier DYAMOND

Hadley Centre Fiona Carroll Dr Helene Hewitt Ann Keen Dr Jason Lowe Rachel McCarthy Dr Jeff Ridley Dr Peter Stott Dr Jonathan Tinker Alex West Dr Kate Willett References Blunden, J. and Arndt, D. S. Eds., (2013) “State of the Climate in 2012”. Bulletin. American Meteorology Society (in press) Church, J

, while the second storm will be ‘female’ and named Bronagh,  following the alternating male/female pattern established by the US National Hurricane Center in the 1970’s.  Evelyn Cusack, Head of Forecasting at Met Éireann, said: “The last 12 months have seen some extreme weather around the Globe as well

of supersaturation (RH>100%) with respect to water and persistent contrails tend to form in conditions of super-saturation (RH>100%) with respect to ice. References: Haywood, J. M., R. P. Allan, J. Bornemann, P. M. Forster, P. N. Francis, S. Milton, G. Radel, A. Rap, K. P. Shine, and R. Thorpe (2009), A case study

the start of the month until fronts pushed in from the west on 14th/15th. Warmer continental air then pushed in, leading to a warm and sunny Easter weekend with maximum temperatures well into the 20's °C. During the last week the warmth declined, and there was rain in most areas, with Storm Hannah giving

a westerly air flow over the UK, a cooler direction than if air was being brought up from the south, and areas such as Spain or Africa. Therefore, we are not likely to reach heatwave conditions, but temperatures will still be warm reaching the low 20’s for many, particularly in the South West