TEMPO.CO, Jakarta - Meteorology, Climatology, and Geophysics Agency (BMKG) gives a brief explanation of the phenomenon of hail that occurred in some areas in Depok and Bandung on Tuesday, March 20.
BMKG spokesman, Hary Tirto Djatmiko, said the hail is a natural weather phenomenon that usually happens.
"Hail is usually accompanied by lightning and strong winds of short duration, most happen during the transition period, either from the dry season to the rainy season or vice versa," he said.
According to Hary, usually one day before the hail, the air would be hot and hot. It occurs due to the presence of sufficiently strong solar radiation on earth.
The indications are shown from a temperature difference of more than 4.5 degrees Celsius between at 07:00 pm and 10:00 pm.
The next stage, starting at 10:00 pm will be seen the growing cumulus clouds (white clouds layered) that turns quickly into cumulonimbus (clouds of gray or black).
"Usually it starts with sudden heavy rain if the rain is drizzling then strong wind will not happen," said Hary.
The category of local rain with an area is 5-10 kilometers only. It is usually also very short, only lasts about 10 minutes. BMKG cannot predict the hail specifically.
DIAS PRASONGKO