Meteowiz model is a limited area model that assimilates only SYNOP observation over west Africa sub domain, it predicts ahead up to 3 days in 12 hours time step and runs twice a day using 0900Z and 2100Z observations. It uses numerical, statistical, climatological approches and equations couple with machine learning algorithms. It predicts weather conditions and variables such as temperature,heat index,rainfall,dust,haziness, sunny and cloudiness. Consistent validation shows that the model has over 60% accuracy over Nigeria.