What is the weather today?What is the weather today?

Look and describe the

weather outside.

Weather

It is the condition of the atmosphere in a certain area at a given time.

METEOROLOGY- A study of weather

METEOROLOGISTS- Expert in meteorology

PAGASA-Philippine Atmospheric Geophysical Astronomical Services Administration

Atmosphere

•An envelope of air

Weather SpaceWeather Space

Weather ElementsWeather Elements

•Air Temperature•Wind Speed and direction

•Cloud Formation•Rainfall

Air TemperatureAir Temperature• How tempearture

affects the weather?

• When the day is sunny, air temperature is high.

• When it is rainy, air temperature is low.

Wind VelocityWind Velocity

• It describes wind speed and wind direction.

Wind SpeedWind Speed• It is measured by an

instrument called anemometer.

• Wind speed may be very fast or strong, fast, slight, and mild.

• A fast wind may be felt on a rainy day.

• slight and mild wind may be experienced on a sunny day.

Wind DirectionWind Direction

• It tell where the wind is coming from.

• It is determined by a wind vane.

Wind VaneWind Vane

• The arrowhead will point to where the wind is coming from.

• A wind coming from the north is called north wind.

Wind SocksWind Socks Aero VaneAero Vane

Beaufort Scale of Wind VelocityBeaufort Scale of Wind Velocity• A helpful tool in describing wind.

Cloud FormationCloud Formation

CLOUDS- are tiny droplets of

water

EVAPORATION-Water changes to

water vapor

CONDENSATION-Water vapor to water

TERMS TO DESCRIBE CLOUDS

• CLEAR

• PARTLY CLOUDY

• CLOUDY or

OVERCAST

Amount of RainfallAmount of Rainfall

• The amount of rainfall is measured with a RAIN GAUGE and may be expressed in centimeters.

Air PressureAir Pressure

• It can be measured through a BAROMETER

How much do you know?How much do you know?• It is used to measure the air pressure.• It is used to measure amount of rainfall.• It is used to described the clouds.• It is used to know the wind direction.• It is used to know the speed of the wind.• It is used to measure the air temperature.• It is known as the weather space.• It is an envelope of air.• It is person who is expert in weather• It is the condition of the atmosphere in a

given time and place.

HomeworkHomework

List two answers for each item.• What do you plan to do during:

A. Sunny days?

B. Rainy days?

C. Stormy days?

D. Fair weather?