Download File - Ms. D. Science CGPA

Weather Patterns
Table of Content
6.5
How Do Meteorologist Predict Weather?
Predicting the Weather
Ms. D
6th Grade
Vocabulary 6.5
1. Meteorologist- Scientist who study the causes of weather and
try to predict it.
2. Isobars- A line on a weather map
that joins places that have the same
pressure.
1. Isotherms- A line on a weather map that joins places that have
the same temperature.
Predicting the Weather pg. 217
Red Sky
Many people use creative thought to summarize their own observations of
weather.
How Do you Predict the Weather? Pg. 217
The first step in forecasting is to collect data.
direct observations, recognizing that cumulonimbus
clouds may produce a thunderstorm
This can be done either through:
through the use of instruments such as a barometer
Meteorologists are scientists who study and try to predict the weather.
Interpreting Complex Data:
Meteorologists use a variety of resources such as:
maps, charts, computers, and other technology to
analyze weather data and to prepare weather forecasts.
How Do you Predict the Weather? Pg. 217/218
Weather reporters get their information from the National Weather Service,
which uses weather balloons, satellites, radar, and surface
instruments to gather data.
Technology
• Weather balloons carry instruments into the troposphere
and lower stratosphere to measure temperature, air
pressure, and humidity.
• Satellites in the exosphere, the uppermost layer of the
atmosphere, collect data on temperature, humidity, solar
radiation, and wind speed and direction.
How Do you Predict the Weather? Pg. 217/218
Technology
• They also include cameras that can make images of
clouds, storms, and snow cover.
• Automated weather stations in 1,700 surface locations
gather data on temperature, air pressure, relative
humidity, rainfall, and wind speed and direction.
• Computers help process all of this weather data quickly to
help forecasters make predictions. Currently, forecasts are
fairly accurate up to five days in the future.
What Can You Learn From Weather Maps? Pg. 219
The National Weather Service maintains weather maps that are
snapshots of conditions at a particular time over a large area.
• Some show curved lines that connect places where certain
conditions are the same. Isobars (-bar as in barometer) are lines
joining places on the map that have the same air pressure.
(These readings may be given in inches of mercury or in
millibars.)
• Isotherms are lines joining places that have the same
temperature. They may be labeled in degrees Fahrenheit,
degrees Celsius, or both.
Standard symbols on weather maps show fronts, areas of high
and low pressure, types of precipitation, and temperatures.
Predicting the Weather pg. 219
Weather Map Symbols
The tables below show what various weather symbols represent.
Predicting the Weather
Pg. 220
Newspaper
Weather Map
•The symbols on this
map show fronts, highand low-pressure
areas, the high and low
temperature readings
for different cities, and
precipitation.
•The color bands indicate
different temperature
ranges.
Predicting the Weather
Weather Map pg. 221