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Weather and Climate Research Programme (JWCRP). Katie is currently the Nowcasting Science Manager, working to exploit our observations capability to improve our nowcasts. Publications Lewis, H., Mittermaier, M., Mylne, K., Norman, K., Scaife, A., Neal, R., Pierce, C., Harrison, D., Jewell, S., Kendon

From our beginnings in the middle 1800’s we have led the way in the science of meteorology and its application. We’ve been continually innovating and evolving, and we’ve grown and changed enormously. Find out more about our history, innovation and what motivates us. Our history Since our foundation

: ……………………………………climatic zone(s) Morning Afternoon Night Rainfall distribution Maximum temperature Minimum temperature Hazards Tuesday Wednesday Thursday Friday Saturday Sunday Monday Key to rainfall distribution symbols: rain likely to fall in few places (less than 33%), rain likely to fall in many places (33% -67

: ……………………………………climatic zone(s) Morning Afternoon Night Rainfall distribution Maximum temperature Minimum temperature Hazards Tuesday Wednesday Thursday Friday Saturday Sunday Monday Key to rainfall distribution symbols: rain likely to fall in few places (less than 33%), rain likely to fall in many places (33% -67

of 2018. Weather, 74: 390- 396. https://doi.org/10.1002/wea.3628 Murphy JM, Harris GR, Sexton DMH, Kendon EJ, Bett PE, Clark RT, Eagle KE, Fosser G, Fung F, Lowe JA, McDonald RE, McInnes RN, McSweeney CF, Mitchell JFB, Rostron JW, Thornton HE, Tucker S, Yamazaki K. (2019) UKCP18 Land Projections

value forecast to airline 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

information for any warnings by omission of missing timesteps. The metadata header will only expose the timesteps that have been generated successfully, therefore if a timestep/s is missing then it should be concluded that they have failed to be generated for that time/s

for the whole Tamil Nadu Model Mann-Kendall statistic (S) Kendall’s tau p value (two-tailed test) Alpha Test interpretation 2020s 2050s 2080s 2020s 2050s 2080s 2020s 2050s 2080s 2020s 2050s 2080s HadCM3Q0 227 173 −42 0.488 0.398 −0.111 <0.0001 0.002 0.422 0.05 R-H0 R-H0 A-H0 HadCM3Q1 77 251 108 0.166 0.577

-Kendall trend test for mean temperature data from all the six models for the whole Tamil Nadu Model Mann-Kendall statistic (S) Kendall’s tau p value (two-tailed test) Alpha Test interpretation 2020s 2050s 2080s 2020s 2050s 2080s 2020s 2050s 2080s 2020s 2050s 2080s HadCM3Q0 227 173 −42 0.488 0.398 −0.111

and healthcare practitioners as well as being a useful tool to assist self-management or treatment of allergy sufferers. It ‘s hoped that in the future these more detailed source maps can be used, alongside wind direction and precipitation patterns to provide more detailed and local warnings to sufferers, which pollen is impacting their area and in what concentrations.