ASOS measures winds at approximately how many feet above ground?

Prepare for the NWCG Introduction to Wildland Fire Behavior Calculations (S-390) Test. Study with interactive questions and explanations to ensure you're ready for the challenge.

Multiple Choice

ASOS measures winds at approximately how many feet above ground?

Explanation:
ASOS winds are measured at about 10 meters above ground, which is roughly 33 feet. This standardized height (10 m) is used for surface weather observations like ASOS/METAR, providing a consistent reference for wind data in fire behavior calculations. Wind speed does change with height due to surface friction, but the 10 m measurement is the convention used for reporting and modeling, so 33 feet is the commonly cited equivalent.

ASOS winds are measured at about 10 meters above ground, which is roughly 33 feet. This standardized height (10 m) is used for surface weather observations like ASOS/METAR, providing a consistent reference for wind data in fire behavior calculations. Wind speed does change with height due to surface friction, but the 10 m measurement is the convention used for reporting and modeling, so 33 feet is the commonly cited equivalent.

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