Weather balloons are launched twice a day

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Presentation transcript:

Weather balloons are launched twice a day To collect data at different altitudes by measuring: Temperature Humidity Air Pressure Ground antennas receive the signals as the balloon rises Computers interpret the signals and send them to the National Weather Service.

Modern weather observation also includes the use of radars and satellites Radars - monitor clouds, precipitation and winds Weather satellites - provide even larger views of weather systems

Doppler Radar

Visible Satellite

Water Vapor Satellite

Weather Maps Surface Maps can show pressure systems The H stands for high pressure systems. Highs usually bring clear skies. The L stands for low pressure systems. Lows usually bring cloudy skies with possible precipitation.