Skip to main content
Hong Kong Observatory Brand Hong Kong - Asia's world city
GovHK Traditional Chinese Simplified Chinese Search
Search Site Map Contact Us
red dot

Forecast trajectory of air from the nuclear power plant in Fukushima, Japan


48-hour forecast tracks at

Trajectory Map
This webpage shows the 2-day trajectory forecast movement of the air from Fukushima Daiichi at a height of 50, 500 and 1000 metres above ground level.
Points to note:
  • Normally, this web page will be updated daily at around 2 a.m., 8 a.m., 2 p.m. and 8 p.m. 
  • The trajectory was prepared using the HYSPLIT model of NOAA. Anyone wishing to quote or further disseminate the data should read the "Disclaimer" of the NOAA Air Resources Laboratory web site for details.

Last revision date: <21 Dec 2012>