FACTORS INFLUENCING WEATHER SC.5.E.7.4 Distinguish among the various forms of precipitation (rain, snow, sleet, and hail), making connections to the weather in a particular place and time. SC.5.E.7.3 Recognize how air temperature, barometric pressure, humidity, wind speed and direction, and precipitation determine the weather in a particular place and time. .
SC.5.E.7.3 Recognize how air temperature, barometric pressure, humidity, wind speed and direction, and precipitation determine the weather in a particular place and time. FACTORS INFLUENCING WEATHER. SC.5.E.7.4 - PowerPoint PPT Presentation
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FACTORS INFLUENCING
WEATHER
SC.5.E.7.4Distinguish among the various forms of precipitation (rain, snow, sleet, and hail), making connections to the weather in a particular place and time.
SC.5.E.7.3Recognize how air temperature, barometric pressure, humidity, wind speed and direction, and precipitation determine the weather in a particular
place and time..
What is weather?
The condition of the atmosphere
at a particular place and time.
Factors Determining
Weather
Air Temperature Barometric Pressure Humidity Wind Speed and Direction Precipitation
AIR TEMPERATURE
Due to the unequal heating of the atmosphere by the Sun
Measured using a THERMOMETER
Cloud cover affects the temperature of the air
AIR PRESSURE
The measure of the weight of gases in the atmosphere
Measured using a BAROMETER
The pressure decreases as the altitude increases
There is more evaporation when the air pressure is low
HUMIDITY
The amount of water vapor or moisture content in the air at a specific time
Measured using a HYGROMETER
Determines the likelihood of precipitation, dew, or fog
WND SPEED AND DIRECTION
Wind is caused by the uneven heating of the Earth causing air to
flow from high pressure to low pressure zones
Wind speed is measured using a ANEMOMETER
PRECIPITATION
The falling of water from the atmosphere to the surface of the Earth
Temperature, pressure, and humidity affect the rate of precipitation.
Reaches the ground in the form of solid or liquid water
FORMS OF PRECIPITATION
Rain Snow Sleet Hail
RAINPrecipitation in the
form of falling liquid drops
most common type of precipitation in our atmosphere
measured in millimeters using a RAIN GAUGE
SNOWPrecipitation falling from clouds
In the form of ice crystalsForms when water vapor turns into ice without passing through a liquid state
Measured in inches with a RULER
SLEETA mixture of rain
and snow
Raindrops that freeze on
their way down to the Earth’s surface
Measured in inches with a RAIN GAUGE
HAILPrecipitation in the form of spherically
shaped pieces of ice larger than five
millimeters in diameter
Measured in inches with a RAIN GAUGE
CLOUDS
A collection of tiny water droplets or ice crystals floating in the atmosphere at varying
altitudes
CIRRUS CLOUDS
Found at high altitudes madeup of tiny ice crystals
CUMULUS CLOUDS
White, puffy clouds that are referred to as "fair-weather clouds"
STRATUS CLOUDS
Uniform grayish clouds that often cover the entire sky.
CUMULUS CLOUDS
Thunderstorm clouds that are only found at low altitudes