Past Backward Trajectory
Please select period:
Points to note:
- The above table shows the past 72-hour backward trajectory of air mass reaching Hong Kong at a height of 100 metres above ground level ending at 8 a.m.
- Normally, this web page will be updated daily at around 5 p.m.
- Archive of trajectories is available for the past 30 days.
- The trajectory was prepared using the This link will open in a new windowHYSPLIT model of NOAA. Anyone wishing to quote or further disseminate the data should read the This link will open in a new window"Disclaimer" of the NOAA Air Resources Laboratory web site for details.
- Incomplete analysis will be supplemented by forecast data.
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