8: (51) Aviation Weather Services Flashcards
From which of the following can the observed temperature, wind, and temperature/dewpoint spread be determined AT A SPECIFIED ALTITUDE
Constant Pressure Analysis Charts
What is the upper limit of the Low Level Significant Weather Prognostic Chart?
24,000 feet.
The most current en route and destination weather information for an instrument flight should be obtained from the…
FSS
Hatching on a Constant Pressure Analysis Chart indicates…
windspeed 70 to 110 knots
Refer to the excerpt from the following METAR report:
KTUS…..08004KT 4SM HZ …..26/04 A2995 RMK RAE36
At approximately what altitude AGL should bases of convective-type cumuliform clouds be expected?
8800 feet AGL. (i.e. 26-4 = 22 22/2.5 = 8.8 8.8 x 1000 = 8800
What significant cloud coverage is reported by this pilot report?
KMOB
UA/OV 15NW MOB 1340Z/SK OVC025-TOP045/OVC075-TOP080/OVC090
Three separate overcast layers exist at with bases at 2500, 7500 and 9000 feet
What does the contraction VRB in the Terminal Aerodrome Forecast (TAF) mean?
Wind direction is variable.
The U.S. High-Level Significant Weather Prognostic Chart forecasts significant weather for what airspace?
25,000 to 63,0000 feet
The locations of fronts and pressure systems as of chart time are best determined by referring to a…
surface analysis chart
The distance measured in millibars separating isobars on surface analysis charts is typically…
4 mb
The remarks section of the Aviation Routine Weather Report (METAR) contains the following coded information. What does it mean?
RMK FZDZB42 WSHFT 30 FROPA
Wind shift at three zero due to frontal passage
What significant cloud coverage is reported by this pilot report?
KMOB
UA/OV 15NW MOB 1340Z/SK OVC-TOP025/OVC045-TOP090
Top of lower overcast is 2500 ft
Base and Top of second overcast layer are 4500 and 9000 feet respectively.
