Summer storms may bring weather to parts of the Northeast, Central, East and South over the next few days as a reduced- pressure system moves over the top part of the country, the Meteorological Department warned on Monday.
The lower- pressure front, which will be effective until March 7, combined with a strong, south- southerly wind will bring gloomy conditions and cause temperatures to hover around 38- 40 degrees Celsius.  ,
The top may cause climate changes all the way to the South, with the ministry warning of possible showers and waves of up to one centimeter in both the Gulf of Thailand and the Andaman Sea.
Between March 8- 9, a warm front from China will shift towards the region, causing storms as it clashes with the prevailing lower- pressure, hot front across the country.  ,
Those living in the North and the Northeast does expect windy conditions with big rain and lightning attacks during the time.
Waves of 1- 2 yards are expected across the South.
Individually, satellite images and files from the Geo- Informatics and Space Technology Agency ( Gistda ) showed that as of 8am on Monday, five counties had extremely high levels of ultra- good PM2.5 substances - , far above the healthy threshold for exposure over a 24- hour period of 37.5 microgrammes per square metre set by the government.
Nakhon Phanom reported the worst fine dust pollution, with PM2.5 levels averaging 82.8 µg/m³, followed by Mukdahan ( 82.5µg/m³ ), Kalasin ( 76.5µg/m³ ), Phayao ( 76µg/m³ ), and Roi Et ( 75.6µg/m³ ).
Thirty- one regions reported toxic levels of good dust pollution.
Bangkok, however, has enjoyed fairly fine weather quality over the past several times, according to Gistda. Satellite pictures taken on Sunday showed 1, 015 flames areas across the country, 355 of them in forest resources.
Myanmar had the most hotspots in the region with 3, 963, followed by Cambodia ( 1, 686 ), Laos ( 1, 030 ), and Vietnam ( 335 ).
Due to a fire across the border, Preah Vihear ( Phra Viharn ) National Park in Sri Sa Ket’s Kantharalak district, on the border with Camboldia, will remain closed until March 8.
Park key Jit Ardsanjorn said that the smoke from the fire affected some areas in Thailand, particularly around Noen Nub Dao on the eastern slopes of Ha Mo E Daeng.
Park officials and soldiers from Preah Vihear Forest Fire Control Station and men were helping control the incident, making more firebreaks.
Extra firetrucks and crew were on backup if needed, Ms Jit said.