As predicted by meteorologists, monsoon arrive Kathmandu today. According to meteorologist, favorable conditions were developing till yesterday.

According to Meteorological Forecasting Division, monsoon wind from the Bay of Bengal has already hit western and central regions of Nepal a few days ago. However, some conditions must be met for formal announcement of the onset of monsoon.

Meteorologist at MFD Barun Paudel said eastern region should record significant rainfall for formal announcement of the onset of monsoon.

“The monsoon winds have already hit eastern part of the country, but just traces rainfall has been recorded so far,” Paudel said.  “We are waiting for the eastern region to record significant rainfall for formal announcement of monsoon.” He said heavy rainfall was expected .

Director General at MFD  Dr Rishi Ram Sharma said two major conditions play vital role in the entry of monsoon to Nepal. “First westerly winds should be replaced by easterly (monsoon) winds and significant rainfall should be recorded.”

 “In South Asia, southwest monsoon picks up more moisture from the Bay of Bengal and heads towards north-east India. As information received so far from the weather maps and satellite images show that monsoon has already developed over the east and central Bay of Bengal and central Bangladesh, Nepal is likely to experience monsoon a few days prior to the normal onset date,” read a monsoon watch released by Meteorological Forecasting Division.

Once monsoon enters from the eastern region, it makes progressive westward advancement to the remaining parts of the country over the next few days through the central region. Meteorologists said conditions looked favourable for arrival of monsoon before the scheduled date. Monsoon lasts for an average of 105 days.