ESO WEATHER WATCH

Message Protocol

Clouds 5% to 80% Cloudy Sky in a 3-hourly mean

HighPWV Precipitable Water Vaporᡂmm H2O

LowPWV Precipitable Water Vapor< 1mm H2O

LowPressure Incoming Weather Front (+\-12 hours)

NegativeTemperature Air Temperature ɘ Celsius (+/- 1C)

Nominal Nominal Observing Conditions

Overcast ᢈ% Cloudy Sky in a 3-hourly mean

StrongWind Wind Speed at Ground Level ᡇ m/s

VariableExtinction ᡑ% Transparent Cirrus and ɝ% Cloudy Sky

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