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• blended-probabilistic-forecast-parameter-catalogue.xlsx

  ) Probability of any lightning flashes occuring in a 30km square region centred on a given point (approx. 15km radius). In each model grid cell the number of lightning flashes per square metre in the previous hour is calculated. The maximum of all of these values within a 30km square region (approx

• BlendedProbabilisticForecastparametercatalogue3xlsx

  ) Probability of any lightning flashes occuring in a 30km square region centred on a given point (approx. 15km radius). In each model grid cell the number of lightning flashes per square metre in the previous hour is calculated. The maximum of all of these values within a 30km square region (approx

• PowerPoint Presentation

  to August - Rainfall El Niño-Southern Oscillation (ENSO) – Following the recent La Niña, sea surface temperatures in the tropical Pacific have returned to around normal with ENSO now in a neutral state. There are some mixed signals from various modelling centres regarding the evolution of ENSO later

• NCIC Monthly Summary

  but with showers over the far south-west and near eastern coasts. The 5th began frosty in many central and southern counties, brightest in the south-east, but cloudier elsewhere, with patchy light rain mainly in the north-west. The 6th was windy, starting with patchy rain in many places, but a band

• NCIC Monthly Summary

  brighter. Patchy rain and drizzle in eastern parts on the 30th became more showery later; in western areas cloud broke up to allow warm sunshine, though enough cloud built up in the south-west during the afternoon for isolated light showers to develop. Wales diary of highlights The first part

• PowerPoint Presentation

  the likelihood of La Niña developing increases. By late autumn (October-November-December period), NOAA Climate Prediction Centre gives a 50- 60 % chance of a short-lived La Niña event while the likelihood of ENSO remaining neutral is around 40 %. In contrast, output from the Australian Bureau

• PowerPoint Presentation

  conditions taking hold in the August to October period (60% likelihood in NOAA forecast). While forecasts looking this far ahead are inherently uncertain, particularly when issued at this time of year, there is a consistent message emerging from many international modelling centres. Much More Likely Below

• PowerPoint Presentation

  to the Climate Prediction Centre, La Niña conditions are present with a La Niña Advisory issued. All indices are currently negative and point to La Niña conditions with some atmospheric response evident, with these conditions expected to remain over the coming few months, returning to neutral early

• PowerPoint Presentation

  that both oceanic and atmospheric indicators reveal borderline La Niña conditions still remain across the equatorial Pacific. Both NOAA and the Bureau of Metrology in Australia (BoM) state that La Niña is currently present. According to the latest forecasts from the WMO Global Producing Centres

• PowerPoint Presentation

  conditions across the equatorial Pacific. Both NOAA and the Bureau of Metrology in Australia (BoM) have declared that La Niña is present. According to the latest forecasts, from the WMO Global Producing Centres for Seasonal Prediction, La Niña is the most likely outcome over the next few months