Parameters Measured

Present Weather Obscuration

Present Weather Obscuration is measured in no units.

Present weather obscuration is an automated qualitative assessment of atmospheric obstruction that is inferred from the measurement of visibility, temperature, dew point, and present weather (precipitation). There are several types of obstructions that can be determined:

• None
• Fog
• Mist
• Freezing Fog
• Haze
• Mix - A mixture of Fog, Mist, or Haze
• Unk - Unable to Determine