Just after 15th April (Bengali New Year), we all can anticipate north-wester in any day. The cloud becomes black along with strong wind blow from the north-west. If it rains then the temperature drops and the total environment changes suddenly.
A soothing wind blows all the time after the North-wester. It's true that everything which is soothing is not actually it looks like.
North-wester is always catastrophic. It always brings destruction along its way. It always interrupts normalcy.
I just captured those snaps just before it's about to start..