INTRO

Objective 03/19/2013Describe the different types of instruments used to take weather measurements.

•Pick up worksheet from front table•WEEKLY WS #28:• If you did not have the benefit of the weather forecast on the news, radio, or television, how would you forecast the weather?

Weather Forecasting

Weather Forecasting Weather

Forecasting Technology

Weather balloon Carries electronic

equipment into upper atmosphere

Wind sock or vane Indicates wind

directions Doppler radar

Tracks precipitation Weather satellites

Provides images/data of weather systems over large areas

Weather Forecasting Barometer An instrument that

measures atmospheric pressure

One end open so air pressure can move the mercury level within

The higher the air pressure, the better the weather

Weather Forecasting Anemometer An instrument

used to measure wind speed

Faster the cups spin, the faster the wind is moving

Weather Forecasting Thermometer

How does temperature effect weather?

An instrument that measures and indicates temperature

Warm temperatures can bring humidity and rain

Cold temperatures can bring dry air and snow

Temperature Isotherms Lines that connect areas of

similar temperature.

Temperature

Temperature Questions to Consider:

How do the isotherms help you to understand what weather is like in different parts of the country?

How might this be useful in forecasting the weather conditions in a particular area?

What patterns can you see in temperatures? Where is it typically warmer? Where are the temperatures typically cooler?

What reasons can you think of to explain the temperature patterns you notice?

OUTRO

Objective 03/19/2013Describe the different types of instruments used t take weather measurements.

•WEEKLY WS #28:•Which weather tool do you think is the most important in collecting data on atmospheric conditions? Why?