Aviation Weather

A report of meteorological phenomena encountered by aircraft in flight is called a(n) _____

• METAR

• PIREP

• SIGMET

• AIRMET

PIREPs are the only means of precisely determining _____ and ______ weather conditions.

• snowfall; hail

• turbulence; thunderstorms

• hail; rainfall

• icing; turbulence

When ceiling is at o below 5,000 feet and visibility is less than 5 miles, controllers are obligated to _____ PIREPs

• disseminate

• record

• observe

• solicit

A decrease in temperature with an increase in height is called an

• alto inversion

• inversion

• upper cold front

• adiabatic rate

Two types of barometers used to measure atmospheric pressure are _______ and _______.

• mercurial; analog

• mercurial; aneroid

• digital; analog

• digital; aneroid

In a METAR, temperature and dew point are shown in whole degrees ________

• Fahrenheit

• Kelvin

• Rankine

• Celsius

Anticipate _______ when temperature-dewpoint spread is 5 degrees or less and decreasing.

• fog

• hail

• turbulence

• thunderstorms

An increase in temperature of the atmosphere with an increase of altitude height defines a(n)

• lapse rate

• inversion

• upper cold front

• alto inversion

Weather advisories issued to amend an area forecast regarding weather phenomena that are of operational interest to all aircraft and potentially hazardous to aircraft are classified as

• AIRMETs

• SIGMETs

• GENOTs

• INREQs

Weather advisories issued for extreme turbulence and severe icing are classified as

• INREQs

• AIRMETs

• GENOTs

• SIGMETs