Instrument Ground Weather

Where do squall lines most often develop?

• In an occluded front.

• In a cold air mass.

• Ahead of a cold front.

Which precipitation type normally indicates freezing rain at higher altitudes?

• Snow.

• Hail.

• Ice pellets.

Tags

NGSS.MS-ESS2-5

What is the expected duration of an individual microburst?

• Two minutes with maximum winds lasting approximately 1 minute.

• One microburst may continue for as long as 2 to 4 hours.

• Seldom longer than 15 minutes from the time the burst strikes the ground until dissipation.

The presence of standing lenticular altocumulus clouds is a good indication of

• a jet stream.

• very strong turbulence.

• heavy icing conditions.

Tags

NGSS.MS-ESS2-5

Clouds, fog, or dew will always form when

• water vapor condenses.

• water vapor is present.

• the temperature and dew point are equal.

Tags

NGSS.MS-ESS2-4

Which of the following combinations of weather producing variables would likely result in cumuliform-type clouds, good visibility, rain showers, and possible clear-type icing in clouds?

• Unstable, moist air, and no lifting mechanism.

• Stable, dry air, and orographic lifting.

• Unstable, moist air, and orographic lifting.

Tags

NGSS.MS-ESS2-5

Which clouds have the greatest turbulence?

• Towering cumulus.

• Cumulonimbus.

• Altocumulus castellanus.

Some of the characteristics you would expect to see with an unstable air mass are

• nimbostratus clouds and good surface visibility.

• turbulence and poor surface visibility.

• turbulence and good surface visibility.

Tags

NGSS.MS-ESS2-5

Maximum downdrafts in a microburst encounter may be as strong as

• 8,000 feet per minute.

• 7,000 feet per minute.

• 6,000 feet per minute.

What types of fog depend upon a wind in order to exist?

• Steam fog and down slope fog.

• Precipitation-induced fog and ground fog.

• Advection fog and up slope fog.