Forecasts and Dekadal Climate Alerts for the
Period 21st to 30 th May 2023

This dekadal climate forecast bulletin n° 153 is done through the exploitation of spatial data collected from major  international centres involved in day-to-day climate science, notably: the International Research Institute for Climate and  Society (IRI) of the University of Columbia (USA); the National Oceanic and Atmospheric Administration (NOAA, USA);  AccuWeather (American Weather Forecasting Agency, USA); the African Centre of Meteorological Applications for  Development (ACMAD); Spatial data from 1979 to 2018, relating to Ocean Surface Temperature (OST) in the Atlantic and  Pacific, El-Niño/La Nina episode intensities in the Pacific, rainfall and temperature from local stations. To this end, NOCC  would like to express its gratitude to all these international Institutions as well as the DMN for the goodwill demonstrated in  sharing the data.
This bulletin highlights the historical climatic conditions from 1979 to 2018, as well as the climatic forecasts for all the
st th
five Agro-ecological zones of Cameroon, for the period from 21 to 30 May 2023. Nonetheless, the bulletin further  underscores the risks, threats and potential impacts expected in the different socio-economic development sectors of
th th
Cameroon. It also makes an assessment of the forecasts made for the previous dekad from 11 to 20 May 2023.