Bangladesh is well covered by a host of models, including the ECMWF, GEFS and locally run GFS mostly iminating from the India Meteorological Department. There are even WRF AWR 9KM models running for the region on schedule. The one significant drawback is the lack of data being reported automatically reported in the region. Metars are few and far between and the single sounding is only occasionally launched from Dhaka.
NCEP REAL-TIME: http://www.monsoondata.org/wx2/
High res WRF – usually a bit old: http://rtws.cdac.in/
GFS ASIA: http://mag.ncep.noaa.
gov/model-guidance-model- parameter.php?group=Model% 20Guidance&model=GFS&area=ASIA
Bangladesh centered vis: http://www.imd.gov.in/
India Forecast Models: http://22.214.171.124/
FDP STORM: http://126.96.36.199/
Wunderground Wundermap: http://www.wunderground.com/wundermap/