Weather Services Flashcards
From which primary source should information be obtained regarding expected weather at the estimated time of arrival if your destination has no Terminal Forecast?
Area forecast.
To best determine general forecast weather conditions over several states, the pilot should refer to:
Aviation Area Forecasts.
To determine the freezing level and areas of probable icing aloft, the pilot should refer to the:
Inflight Aviation Weather Advisories.
The section of the Area Forcast entitled “VFR CLDS/WX” contains a general description of:
Clouds and weather which cover an area greater than 3,000 square miles and is significant to VFR flight operations.
What values are used for Winds Aloft Forecasts?
True direction and knots.
When the term “light and variable” is used in reference to a Winds Aloft Forecast, the coded group and windspeed is:
9900 and less than 5 kts.
Radar weather reports are of special interest to pilots because they indicate:
Location of precipitation along with type, intensity, and cell movement of precipitation.
What information is provided by the Radar Summary Chart that is not shown on other weather charts?
Lines and cells of hazardous thunderstorms.
What does the heavy dashed line that forms a large rectangular box on a radar summary chart refer to?
A severe weather watch area.
What is indicated when a current Convective SIGMET forecasts thunderstorms?
Thunderstorms obscured by massive cloud layers.
What infomation is contained in a Convective SIGMET?
Tornadoes, embedded thunderstorms, and hail 3/4” or greater in diameter.
SIGMETs are issued as a warning of weather conditions hazardous to which aircraft?
All aircraft.
Which in-flight advisory would contain information on severe icing not associated with thunderstorms?
SIGMET.
AIRMETs are advisories of significant weather phenomena but of lower intensities than SIGMETs and are intended for dissemination to:
All pilots.
What service should a pilot normally expect from En Route Flight Advisory Service (EFAS) station?
Actual weather information and thunderstorm activity along the route.