Thailand: Thai Meterological Department

Bangkok and Nation-wide http://weather.tmd.go.th/svp120.php
Note: Click on TMD Radar to get other province information.

Bangkok ONLY: http://weather.bangkok.go.th/radar/RadarHighResolution.aspx

More Information: http://www.wmo.int/pages/prog/hwrp/flood/ffgs/mrcffgs/presentations/Day-1/Country_presentations/THAILAND1.pdf