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station model click to hear : station model

Method of representing information collected by an observation station on a weather map using symbols and numbers.
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air temperature wind direction present state of weather temperature of dew point type of low cloud pressure change barometric tendency sky coverage sea-level pressure station circle type of middle cloud type of high cloud wind speed

air temperature click to hear : air temperature

Sensation of heat or cold (°C) measured using an open-air thermometer shielded from direct sunlight.

wind direction click to hear : wind direction

Wind direction is indicated by the position of the wind shaft.

present state of weather click to hear : present state of weather

Type of precipitation (present weather) noted at the moment of observation.

temperature of dew point click to hear : temperature of dew point

Temperature (°C) at which water vapor in the air begins to condense; it is used to calculate humidity in the air.

type of low cloud click to hear : type of low cloud

Type of cloud observed between ground level and an altitude of 2,000 meters.

pressure change click to hear : pressure change

Positive or negative value that corresponds to the difference between the pressure reading and sea-level pressure; it is expressed in millibars.

barometric tendency click to hear : barometric tendency

Variation in atmospheric pressure during the three hours preceding observation.

sky coverage click to hear : sky coverage

Proportion of the sky covered with cloud.

sea-level pressure click to hear : sea-level pressure

Reference pressure that corresponds to the pressure observed at sea level; it is expressed in millibars.

station circle click to hear : station circle

Circle on a weather map that represents an observation station; displayed around the circle is the information collected by the station.

type of middle cloud click to hear : type of middle cloud

Type of cloud observed at altitudes between 2,000 and 6,000 meters.

type of high cloud click to hear : type of high cloud

Type of cloud observed at altitudes higher than 6,000 meters.

wind speed click to hear : wind speed

Wind speed is expressed in km/h; it is indicated by barbs and pennants whose values must be added.