AB AB Meteorology and Weather Observation 2

Question 1

What weather change typically accompanies the passage of a cold front?

Accepted Answer

Sudden squalls and sharp wind shift

Answer

Cold front passage brings sudden squalls, a sharp clockwise wind shift, brief heavy rain, then rapidly clearing skies.

Question 2

What is a meteorological 'trough'?

Accepted Answer

An elongated area of low pressure

Answer

A trough is an elongated region of relatively low atmospheric pressure that can bring unsettled weather and wind shifts.

Question 3

At what Beaufort force number is wind classified as hurricane force?

Accepted Answer

12

Answer

Beaufort Force 12 designates hurricane-force winds of 64 knots or greater with exceptionally high seas.

Question 4

What is the primary cause of advection (sea) fog?

Accepted Answer

Warm moist air flowing over cooler water

Answer

Advection fog forms when warm, moist air moves over colder water, cooling the air to its dew point and causing condensation.

Question 5

What does a steady barometer generally indicate about upcoming weather?

Accepted Answer

Continued settled weather

Answer

A steady barometer indicates stable atmospheric pressure, which generally signals continued fair or settled weather conditions.

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