FAA Private Pilot Test Prep - Chapter 7: Weather Services
(Refer to Figure 14.) The wind and temperature at 12,000 feet MSL as reported by a pilot are
080 degrees at 21 knots and -7 degrees C.
(Refer to Figure 12.) What are the wind conditions at Wink, Texas (KINK)?
110 degrees at 12 knots, gusts 18 knots.
(Refer to Figure 15.) What is the valid period for the TAF for KMEM?
12th 1800Z to 13th 2400Z.
(Refer to Figure 15.) In the TAF from KOKC, the "FM (FROM) Group/ is a forecast for the hours from 1600Z to 2200Z with the wind from
180 degrees at 10 knots
(Refer to Figure 12.) The wind direction and velocity at KJFK is from
180 degrees true at 4 knots.
(Refer to Figure 17.) Determine the wind and temperature aloft forecast for MKC at 6,000 feet.
200 degrees true at 6 knots, temperature +3 degrees C.
(Refer to Figure 17.) Determine the wind and temperature aloft forecast for DEN at 9,000 feet.
230 degrees true at 21 knots, temperature -4 degrees C.
(Refer to Figure 17.) What wind is forecast for STL at 9,000 feet?
230 degrees true at 32 knots.
(Refer to Figure 17.) What wind forecast for STL at 12,000 feet?
230 degrees true at 39 knots.
(Refer to Figure 15.) Between 1000Z and 1200Z the visibility at KMEM is forecast to be
3 statute miles.
(Refer to Figure 14.) If the terrain elevation is 1,295 feet MSL, what is the height above ground level of the base of the ceiling?
505 feet AGL.
(Refer to Figure 14.) The base and tops of the overcast layer reported by a pilot are
505 feet AGL.
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 knots.
SIGMETS are issued as a warning of weather conditions hazardous to which aircraft?
All aircraft.
(Refer to Figure 13.) At what time will thermals begin to form?
Between 1300Z and 1500Z while the sky is clear.
(Refer to Figure 13.) When are the thermals at the best?
By 1500Z (midmorning) when scattered clouds begin to form.
To best determine general forecast weather conditions over several states, the pilot should refer to
Graphical Forecasts for Aviation (GFA).
(Refer to Figure 15.) During the time period from 0600Z to 0800Z, what visibility is forecast for KOKC?
Greater than 6 statue miles.
What should pilots state initially when telephoning a weather briefing facility for preflight weather information?
Identify themselves as pilots.
(Refer to Figure 12.) Which of the reporting stations have VFR weather?
KINK, KBOI, and KLAX.
What early morning weather observations indicate the possibility of good weather conditions for balloon flight most of the day?
Overcast with stratus clouds and surface winds, 5 knots or less.
(Refer to Figure 15.) In the TAF for KMEM, what does "SHRA" stand for?
Rain showers.
Whicn in-flight advisory would contain information on severe icing not associated with thunderstorms?
SIGMET.
(Refer to Figure 12.) What are the current conditions depicted for Chicago Midway Airport (KMDW)?
Sky 700 feet overcast, visibility 1-1/2 SM, rain.
Which type of weather briefing should a pilot request when departing within the hour, if no preliminary weather information has been received?
Standard briefing.
What should pilots state initially when telephoning a weather briefing facility for preflight weather information?
The intended route of flight and destination.
(Refer to Figure 13.) What effect do the clouds mentioned in the weather briefing have on soaring conditions?
The scattered clouds indicate thermals at least to the tops of the lower clouds.
In addition to the standard briefing, what additional information should be asked of the weather briefer in order to evaluate soaring conditions?
The upper soundings to determine the thermal index at all soaring levels.
What is indicated when a current CONVECTIVE SIGMET forecasts thunderstorms?
Thunderstorms obscured by massive cloud layers.
What information is contained in a CONVECTIVE SIGMET?
Tornadoes, embedded thunderstorms, and half 3/4 inch or greater in diameter.
What values are used for Winds Aloft Forecasts?
True direction and knots.
(Refer to Figure 15.) What is the forecast wind for KMEM from 1600Z until the end of the forecast?
Variable in direction at 6 knots.
Which weather reports and forecasts are most important for local area balloon operations?
Winds aloft Forecasts and Aviation Routine Weather Reports.
To get a complete weather briefing for the planned flight, the pilot should request
a standard briefing.
AIRMET's are advisories of significant weather phenomena but of lower intensities than SIGMET's and are intended for dissemination to
all pilots.
When requesting weather information for the following morning, a pilot should request
an outlook briefing.
(Refer to Figure 13.) According to the weather briefing, the most ideal time to launch balloons is
as soon as possible after 1300Z.
(Refer to Figure 13.) According to the weather briefing, good balloon weather will begin to deteriorate
at 2000Z due to sharp increase in wind conditions.
(Refer to Figure 15.) The only cloud type forecast in TAF reports is
cumulonimbus.
(Refer to Figure 14.) The intensity of the turbulence reported at a specific altitude is
light from 5,500 feet to 7,200 feet.
For aviation purposes, ceiling is defined as the height above the Earth's surface of the
lowest broken or overcast layer or vertical visibility into an obstruction.
(Refer to Figure 12.) The remarks section for KMDW has RAB35 listed. This entry means
rain began at 1835Z.
When telephoning a weather briefing facility for preflight weather information, pilots should state
the aircraft identification or the pilot's name.
When speaking to a Flight Service weather briefer, you should state
whether the flight is VFR or IFR.
When telephoning a weather briefing facility for preflight weather information, pilots should state
whether they intend to fly VFR only.
