Pekanbaru - The Meteorology, Climatology and Geophysics Agency (BMKG) of the Pekanbaru Meteorology Station said the hot spots mainly caused by land fires have been expanding to several areas in Sumatra.
"Not only Riau, some other provinces in Sumatra also had hot spots," BMKG analyst of the Pekanbaru Meteorology Station Warih Budi Lestari said in Pekanbaru Sunday.
He said a detection of the National Oceanic and Atmospheric Administration (NOAA)-18 satellite operated by Singapore since Saturday afternoon in Sumatra on Feb 11 shows that there were 27 hot spots.
The scores of hot spots, he said, had been detected in Aceh province three spots, North Sumatra four and West Sumatra three.
"A total of 17 hot spots in Riau are located in several regencies and cities," he said.
In Rokan Hilir regency, Warih said, there are five hot spots, Bengkalis ten, Pelalawan and Dumai city one each.
The number of hot spots in Sumatra, he said, may increase in view of the bad weather conditions in the last few weeks.
In the meantime, the result of monitoring cloud satellite image, streamline analysis and physical and dynamic conditions of the air shows that the weather in Riau is clear to some clouds, and the same condition prevailed in the waters.
"But light to medium rain is still possible. Rain mainly fell in the western and southern part of Riau as well as the eastern coast bordering with Malaka Strait," he said.
Light rain, Warih said may fall in the afternoon to the night as well as in the small hours.
He said the wind has been blowing from the southwest to southeast with a speed of five to 25 kilometers per hour.
