Weather & METAR Reports Flashcards

1
Q

Thin layer of atmosphere where the normal decrease in temperature with height switches to the temperature increasing with height.

Warm air on top of cold air.

A

Temperature Inversion.

Keeps normal convective overturning of the atmosphere from penetrating through the inversion.

Red sunset, fog, haze, low clouds, poor visibility, but smooth air.

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2
Q

Cause of turbulence.

A

Moist, unstable air.

Also causes showery precipitation.

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3
Q

Results from Stable Air.

A

Smooth air, poor visibility, and steady (not showery) precipitation (because stable air is usually humid).

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4
Q

Results from Unstable Air.

A

Intermittent precipitation.

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5
Q

Air: Cool + Dry.

A

Stable.

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6
Q

Air: Hot + Humid.

A

Unstable.

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7
Q

High Density Altitude.

A

Just means “high altitude”.

Air is thinner, so lift is decreased.

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8
Q

Type of cloud: Nimbus.

A

Rain Cloud.

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9
Q

METAR Report:

13021G26KT

A

Wind is 130 deg (SE) at 21 knots gusting at 26 knots.

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10
Q

METAR Report:

OVC007.

A

Sky is overcast at 700 feet.

(Numbers are in hundreds).

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11
Q

METAR Report:

1 1/2SM.

A

Visibility is 1 1/2 statue miles.

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