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operators. Performance measure: ≤ 2.85m/s for Wind and ≤ 0.56K for Temperature (based on 12-month mean values) Root Mean Square Vector Error 4.00 3.80 3.60 3.40 3.20 3.00 2.80 Northern Hemisphere T+24 Wind (m/s) at 250hPa Monthly Rolling 12-month mean Target Latest value: 2.94 m/s Root Mean Square

operators. Performance measure: ≤ 2.85m/s for Wind and ≤ 0.56K for Temperature (based on 12-month mean values) Root Mean Square Vector Error 4.00 3.80 3.60 3.40 3.20 3.00 2.80 Northern Hemisphere T+24 Wind (m/s) at 250hPa Monthly Rolling 12-month mean Target Latest value: 2.92 m/s Root Mean Square

operators. Performance measure: ≤ 2.85m/s for Wind and ≤ 0.56K for Temperature (based on 12-month mean values) Root Mean Square Vector Error 4.00 3.80 3.60 3.40 3.20 3.00 2.80 Northern Hemisphere T+24 Wind (m/s) at 250hPa Monthly Rolling 12-month mean Target Latest value: 2.92 m/s Root Mean Square

operators. Performance measure: ≤ 2.85m/s for Wind and ≤ 0.56K for Temperature (based on 12-month mean values) Root Mean Square Vector Error 4.00 3.80 3.60 3.40 3.20 3.00 2.80 Northern Hemisphere T+24 Wind (m/s) at 250hPa Monthly Rolling 12-month mean Target Latest value: 2.94 m/s Root Mean Square Error

operators. Performance measure: ≤ 2.85m/s for Wind and ≤ 0.56K for Temperature (based on 12-month mean values) Root Mean Square Vector Error 4.00 3.80 3.60 3.40 3.20 3.00 2.80 Northern Hemisphere T+24 Wind (m/s) at 250hPa Monthly Rolling 12-month mean Target Latest value: 2.93 m/s Root Mean Square

and customer requirements, aimed at mitigating against disruptive weather events. Emma was promoted again in 2017, becoming Met Office NATS Operations manager. External recognition Emma obtained a Qualification and Credit Framework (QCF) Level 5 Diploma in Meteorological Forecasting in 2012. She also holds the World Meteorological Organization (WMO)’s Aeronautical Meteorological Forecasters (AMF) accreditation.

. The only factors affecting ET O are weather parameters i.e., temperature, wind speed, relative humidity and sunshine hours. The FAO Penman- Monteith equation is suggested as the single method for determining ET O . ET o 900 0.408��R n � G� � � U 2 ( e mm / day� � T � 273 � � � (1 � 0.34U ) � 2 s � e

McSweeney et al. (2015). Maps show monsoon circulation in 850 hPa flow for JJA for observations from ERA40 and a selection of CMIP5 models. Categories from the assessment are given in brackets for the CMIP5 models: IP – implausible, SB – significant biases, B – biases, S – satisfactory They find

the decade. Updated decadal forecasts, along with verification of previous forecasts, are available from the Forecast web page. References Smith, D. M., S. Cusack, A. W. Colman, C. K. Folland, G. R. Harris and J. M. Murphy, 2007, Improved surface temperature prediction for the coming decade from

network was built up over a period from the mid 1970's to the 1990s, with the oldest radar at Hameldon Hill. To combat the risk of obsolescence, meet the future demands of higher resolution NWP, and operationally realise the benefits of dual polarisation technology on the UK network, the radar