Weather experts have attributed the sporadic rainfall to the isolated monsoon clouds hovering approximately 1500 meters above the surface.Meteorologist at the Meteorological Forecasting Division (MFD) of Department of Hydrology and Meteorology (DHM), Subash Rimal, said the sky is full of dispersed clouds and they are hovering way lower than the normally expected altitude.
"To experience heavy rainfall, dense and big clouds covering wide areas must accumulate simultaneously. Currently, we have only seen isolated clouds that produce sporadic rainfalls," said Rimal.
"The clouds that deliver heavy rainfalls hover at least 3,000 meters above the ground. At such altitude, the clouds absorb necessary moisture and let the air pressure and movement of wind play the vital part of making rainfalls," he added.
After the onset of monsoon on June 10, Kathmandu experienced 48mm of rainfall on Friday alone.
Rimal said dense cloud formation will bring heavy thunderstorm and lengthy rainfall in a few days. "Thick clouds are forming above the Indian State of Orissa and we have high possibility of receiving heavy rainfall due to this," said Rimal.
As per MFD's data, Kathmandu has only experienced 91.10mm of average rainfall after June 10. Every year, people in Kathmandu get 236.3mm of rainfall in June.
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