Weather Instruments WindsMoistureStorms Weather Maps

Name the instrument which measures temperature.

Thermometer

Name the instrument that measures air pressure.

Barometer

Name the instrument that measures wind speed.

Anemometer

Name the instrument that measures wind direction.

Weather Vane

Name TWO instruments that measure relative humidity.

Psychrometer and Hygrometer

Virginia is in the global wind belt called the ___________.

Westerlies

Due to the Coriolis Effect the winds in the southern hemisphere are deflected to the _______.

Left (Counterclockwise)

Cold air sinking produces _______ pressure.

High

A line that connects equal points of air pressure is called a(n) _______.

Isobar

Due to the differential heating of land and water, during the day a ________ Breeze forms.

Sea

The wet bulb temperature of the pyschrometer drops due to the cooling effect of _________.

Evaporation

The high level cloud that resembles the tail of a horse is ______.

Cirrus

The cloud associated with lightning, strong winds, and hail is a _______________.

Cumulonimbus

The precipitation type that freezes on contact with a cold surface is called ________.

Freezing Rain (Glaze Ice)

True of False. Clouds are composed of gas molecules.

False. Clouds are composed of liquid and solid particles.

In Virginia, we would most likely receive damage from the (precipitation or winds) of a hurricane?

Precipitation

The eye of a hurricane is a region of ____________.

Calm, clear air

True or False. Lightning never strikes the same place twice.

False

What is the energy source of a hurricane?

Condensation of warm, moist air above tropical oceans.

The rapid expansion of air caused by lightning is called _____.

Thunder

The front produced by warm air advancing into cold air is a _____ front.

Warm

Weather around the big “H” on a weather map would be ______.

Clear

Violent weather such as thunderstorms, strong winds, and maybe tornadoes would occur along which type of front?

Cold

After a cold front passes through, temperature would ____ and winds would come from the ________ direction.

Drop…Northwest

Closely spaced isobars on a weather map would indicate what about the winds?

That they are strong.