Download Weather Instruments

Weather Instruments
Forecasting Weather
• forecasting – a prediction of weather
conditions over the next 3 to 5 days
– Meteorologist measure the following to make
their forecast
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Air pressure
Temperature
Cloud cover
Wind speed and direction
Humidity
Psychrometer
• Measures relative humidty
Rain Gauge
• Measures precipitation
Thermometer
• Measures air temperature
Barometer
• Measures air pressure
Wind Sock or Weather Vane
• Measures wind direction
– Points in the direction in which wind is coming
from
N
According to this vane, which direction is
the wind blowing to? Click the right
direction.
W
E
S
Anemometer
• Measures wind speed
Specialized Weather Equipment
• Weather Balloon
– carries weather instruments into the atmosphere
• Radar
– Doppler, Nexrad
– tracks precipitation as it falls to the ground
• Satellites
– shows cloud cover from space
Weather Maps
• meteorologist use to show weather patterns
• compiles information from over 1,000
weather stations across the United States
• Isobars are lines that connect points of equal
air pressure
• Isotherms are lines indication areas of
similar temperature
Station Models – small circles that show the
location of the station and symbols representing
weather data
Watches and Warnings
• can be issued for any type of severe weather
• watch means that the conditions are
favorable for the severe weather to occur
and to watch the weather closely for
changes
• warning means that the sever weather is
occurring and shelter should be taken
immediately
Correct
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