Weather Observation & Reporting Flashcards
7 cards from real CTO practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Weather Observation & Reporting flashcards as text
At what point is a SIGMET for convective activity (WST) issued in the conterminous US?
Answer: When severe or extreme turbulence or severe icing is associated with thunderstorms
Convective SIGMETs (WSTs) are issued for severe or embedded thunderstorms, tornadoes, and hail 3/4 inch or greater.
What is the standard duration of a Convective SIGMET?
Answer: Two hours
Convective SIGMETs are valid for up to two hours, or until the hazard no longer exists.
A TAF includes the group 'TEMPO 1416 6SM -RA BKN030.' What does 'TEMPO' indicate?
Answer: Temporary fluctuations lasting less than one hour and covering less than half of the period
TEMPO in a TAF indicates temporary conditions expected to last less than one hour and occur during less than half of the specified period.
What does 'BECMG' indicate in a Terminal Aerodrome Forecast (TAF)?
Answer: A gradual change expected to occur within a specified time period
BECMG (becoming) indicates a gradual change in conditions expected to occur within a stated transition period.
Which PIREP descriptor indicates severe turbulence that makes aircraft control difficult?
Answer: SEV
SEV (severe) turbulence in PIREPs indicates abrupt changes in altitude/attitude and aircraft may be momentarily out of control.
When must a controller pass a PIREP for severe or extreme turbulence to other aircraft?
Answer: Immediately upon receipt
Controllers must immediately relay PIREPs for severe or extreme turbulence to other aircraft that may be affected.
What is the lowest RVR value at which an ILS Category I approach may be conducted under FAR Part 91?
Answer: 1800 feet RVR
Category I ILS approaches require a minimum RVR of 1800 feet under FAR Part 91 operations.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy