The available options for obtaining this information are:
- Deducing the conditions under which vertical air flow may occur from the information at hand, such as surface heating, converging air flows seen in MSLP charts, heating by a fire, etc.
- Discussions with the duty fire weather forecaster. Forecasters have access to numerical weather models which can depict vertical air flow systems above a certain size. They may have an appreciation of whether general conditions are conducive to the formation of smaller-scale processes such as mountain wind waves.
- Field observations of the manifestations of vertical air flow – such as cloud formations.
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