yesterday (observation)	currently (observation)	today (forecast)	tomorrow (forecast)	the day after tomorrow (forecast)	two days later (forecast)
Belgium	moderate - 5	good - 3	poor - 6	moderate - 5	very good - 2	good - 3
Flanders	moderate - 5	good - 3	poor - 6	moderate - 5	very good - 2	good - 3
Brussels	moderate - 5	good - 3	poor - 6	moderate - 5	good - 3	fairly good - 4
Wallonia	moderate - 5	good - 3	poor - 6	moderate - 5	very good - 2	good - 3