Weather Phenomena Volcabulary

Weather temperature, weather instrumental, weather forescast...etc This slide will give you a general view and basic volcabulary about Weather and Phenomena Which happen everyday around us. A meteorological phenomenon is a weather event that can be explained by the principles of meteorology. Such events include: Air mass Anticyclone Arctic cyclone Ball lightning Clouds Crow Instability Derecho Diamond dust Drought Dust devil Dust storm Extratropical cyclone Foehn wind Hail Halo Heat wave Hurricane Ice pellets Indian summer KelvinHelmholtz Instability Lake effect snow Light pillar Lightning Mesocyclone Morning glory cloud Novaya Zemlya Effect Rain Rain and snow mixed Rainbow Raining animals Sleet; see Ice pellets and Rain and snow mixed Snow Squall St. Elmos fire Subtropical cyclone Sun dog Sun shower Supercell Temperature inversion Thunder Thundersnow Thunderstorm Tornado Tropical storm Weather front Wind Zud

Weather Includes:

Temperature

Wind

Precipitation

Weather Instruments (Tools)

Temperature- the measure of the amount of Temperature- the measure of the amount of

heat energy in the atmosphere

Measured using a

THERMOMETER

Additional Weather Instruments

Wind Speed is measured using an

ANEMOMETER

Wind Direction is measured using a WEATHER VAIN.

Additional Weather Instruments

A RAIN GAUGE is

used to measure

the amount of

precipitation

Precipitation Includes:

Rain

Snow

Formed by ice crystals*

More types of Precipitation:

Sleet

Hail

Formed by ice crystals*

Mixture of snow and

rain

Air Masses and Fronts

Air Masses: formed when air in the

atmosphere is heated at the equator and

cooled at the poles

Fronts: formed when two air masses of different temperatures and humidity* bump

into each other

*Humidity is the amount of water vapor

in the air

Types of Fronts

Cold frontWarm front

Cold air mass

pushes into a

warm air mass.

Warm air mass pushes into a cold air mass.

Additional Weather Tools

Air pressure is the result of the mass/weight

of the air and temperature pushing on its

surroundings (atmospheric pressure)

Measured using

a BAROMETER

Do weather forecasters use air pressure to predict the weather?

Thunderstorms

Tornadoes

Hurricanes

Strong winds, heavy rain, thunder, and lightning.

Most common in Virginia, but

when?

How are they formed?

What are some of the characteristics

of a hurricane?

Clouds are formed when warm air

carrying water vapor rises from the

Earth and the water vapor cools down and connect to each other.

Are all clouds the same?

Feathery, wispy, clouds; associated with fair weather They often indicate that rain or snow

hours (High)

Made from?

• Foul weather

storm clouds that bring heavy

rains and thunderstorms.

Cumulo-nimbus

How are they formed?

Spot the cloud!

Low and flat …

Stratus

Spot the cloud!

Middle level,

fluffy …

Cumulus

Spot the cloud!

High level,

wispy …

Cirrus

Spot the cloud!

Rain bearing,

storm clouds …

Nimbus

Cumulo-Let’s Review  It’s time to play the…

Cirrus Clouds Cold Front Wind/Weather

The ABC’s of Weather

Draw a letter from the bag Share a word or phrase that begins with the letter to summarize weather.

Tara Moore, Elementary Lead Science Teacher

Suffolk Public Schools

October 2005

Some cloud slides adapted from John Harris, Radley College, UK