With which wind does the prevailing wind direction reverse from season to season?

BRY2K

I would say with a Monsoon wind. From November to February, the general directions of the winds are north easterly in the Northern Region, north westerly over the rest of western Bangladesh, and northerly in the eastern part. From March to May, the winds are westerly or south–westerly in the western half but south-south easterly in the eastern half. Occasionally Nor’westers, of course, change the wind direction and bring relief from the dull heat. From June to September, the winds are not all southerly, much of it being south-easterly, and even easterly. In October the winds are very variable, but there is a definite strengthening of the northerly winds at the expense of the south-easterlies. The Inter-Tropical Convergence Zone is in the north of Bangladesh during the four monsoon months and thus it is a pronounced field of air mass convergence. The season Monsoon is predominant among all other seasons in Bangladesh, where wind direction reverse completely with season. In winter, the prevailing wind is from north east and hence pollution even from Gobi desert can affect from Bangladesh. http://www.rrcap.unep.org/male/baseline/Baseline/Bang/BANGCH4.htm I hope that this response assist with this: http://leprosy.itineris.co.uk/documents/local_events/west_central/SeasonsQuiz.pdf Nov 05 09, 9:17 AM