Weather

In the Northern Hemisphere, surface winds around the center of a hurricane move

• Clockwise and inward
• Clockwise and outward
• Counterclockwise and inward
• Counterclockwise and outward

If air has a dry-bulb temperature of 2°C and a wet-bulb temperature of –2°C, what is the relative humidity?

• 11%
• 20%
• 36%
• 67%

The weather station model below shows some of the weather data for a certain location. What is the wind speed shown on the station model and which instrument is used to measure the wind speed?

• 15 knots, measured by a wind vane
• 15 knots, measured by an anemometer
• 25 knots, measured by a wind vane
• 25 knots, measured by an anemometer

Which station model shows an air temperature of 75°F and a barometric pressure of 996.3 mb?

• 1
• 2
• 3
• 4

Which map best represents the surface wind pattern around Northern Hemisphere high-pressure and low-pressure centers?

• 1
• 2
• 3
• 4

What is the dew point when the dry-bulb temperature is 12°C and the wet-bulb temperature is 7°C?

• 1°C
• –5°C
• 28°C
• 48°C

Which weather instrument is used to determine wind direction?

• 1
• 2
• 3
• 4

Which station model represents a location that has the greatest chance of precipitation?

• 1
• 2
• 3
• 4

Which type of air mass most likely has high humidity and high temperature?

• cP
• cT
• mT
• mP

What is the relative humidity if the dry-bulb temperature is 16°C and the wet-bulb temperature is 10°C?

• 45%
• 33%
• 14%
• 4%