Meteorology: Fog Quiz and Flashcards for Students

Questions and Answers

Fog is usually prevalent in industrial areas because of?

Lack of wind

An abundance of condensation nuclei from combustion products (correct)

Low temperatures

High humidity

Under what condition does advection fog usually form?

Warm air moving over colder ground

Moist air moving over colder ground or water (correct)

Cold air moving over warm water

Dry air moving over warm land

Fog produced by frontal activity is a result of saturation due to?

Evaporation of precipitation (correct)

Wind patterns

High pressure systems

Condensation of warm air

Which in-flight hazard is most commonly associated with warm fronts?

Precipitation-induced fog Signup and view all the answers

A situation most conducive to the formation of advection fog is?

An air mass moving inland from the coastline during the winter Signup and view all the answers

Advection fog has drifted over a coastal airport during the day. What may tend to dissipate or lift this fog into low stratus clouds?

Wind 15 knots or stronger Signup and view all the answers

What lifts advection fog into low stratus clouds?

Surface winds of approximately 15 knots or stronger Signup and view all the answers

In what ways do advection fog, radiation fog, and steam fog differ in their formation or location?

Radiation fog is restricted to land; advection fog is common along coastlines; steam fog forms over water Signup and view all the answers

With respect to advection fog, which statement is true?

It can appear suddenly during day or night, and it is more persistent than radiation fog Signup and view all the answers

In which situation is advection fog most likely to form?

An air mass moving inland from the coast in winter Signup and view all the answers

In what localities is advection fog most likely to occur?

Coastal areas Signup and view all the answers

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

Advection fog and upslope fog Signup and view all the answers

What situation is most conducive to the formation of radiation fog?

Warm, moist air over low, flatland areas on clear, calm nights Signup and view all the answers

Which conditions are favorable for the formation of radiation fog?

Clear sky, little or no wind, small temperature/dew point spread, and over a land surface Signup and view all the answers

Which weather condition can be expected when moist air flows from a relatively warm surface to a colder surface?

Fog Signup and view all the answers

Sudden penetration of fog can create the illusion of?

Pitching up Signup and view all the answers

Which conditions are necessary for the formation of upslope fog?

Moist, stable air being moved over gradually rising ground by a wind Signup and view all the answers

When advection fog has developed, what may tend to dissipate or lift the fog into low stratus clouds?

Wind stronger than 15 knots Signup and view all the answers

If the temperature/dew point spread is small and decreasing, and the temperature is 62°F, what type of weather is most likely to develop?

Fog or low clouds Signup and view all the answers

Low-level turbulence can occur and icing can become hazardous in which type of fog?

Steam fog Signup and view all the answers

What is the most prevalent warning that radiation fog will form?

Little or no wind Signup and view all the answers

Study Notes

Overview of Fog

Fog develops due to condensation nuclei in industrial areas, resulting from combustion processes.
Common forms of fog include advection fog, radiation fog, and steam fog, each with unique formation conditions.

Advection Fog

Forms when moist air moves over colder surfaces, such as land or water.
Most likely to occur with air masses moving inland from the coast during winter.
Can dissipate into low stratus clouds with surface winds of approximately 15 knots or more.

Formation Conditions

Advection fog can form suddenly at any time, day or night, and is generally more persistent than radiation fog.
Requires wind to form; specifically, advection fog and upslope fog depend on moving air.

Radiation Fog

Forms under specific conditions: warm moist air over flat, low-lying land on clear, calm nights.
Favorable conditions include a clear sky, little to no wind, and a small temperature-dew point spread.

Frontal Activity and Fog

Frontal fog results from the saturation due to evaporation of precipitation.
Precipitation-induced fog, often associated with warm fronts, leads to lower visibility.

Localities and Hazards

Coastal areas are prime locations for advection fog occurrence.
Low-level turbulence and icing hazards are prevalent in steam fog conditions.
Sudden fog penetration can create visual illusions, such as pitching up during flight.

General Conditions Favoring Fog

Moist air flowing from warmer to cooler surfaces typically leads to fog formation.
Little or no wind is a significant indicator of possible radiation fog development.

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Description

Test your knowledge on fog and its causes with these flashcards. This quiz covers various aspects of fog formation, including conditions for advection fog and the role of precipitation. Perfect for students studying meteorology or related fields.

Meteorology - Fog Flashcards