Weather Flashcards
Radiation Fog
Warm,moist air over low,flatland areas on clear, calm nights.
Formation of fog
Temperature of collecting surface is below dewpoint of surrounding air and dewpoint is colder than freezing.
Figure 4, Dallas-Fort Worth area
16,000FT
which is true regarding recovery procedures from aerodynamic stalls due to structural icing?
some measures for recovery from ICTS are opposite of those for recovery from wing stall.
Winds at 2000 feet compared to winds at the surface are
higher and go at right angles to the isobars as compared to the winds at the surface due to friction
what is an important characteristic of win shear
It is an atmospheric condition that may be associated with a low level temperature inversion, a jet stream, or frontal zone.
why is frost considered hazardous to flight operation?
Frost causes early airflow separation resulting in a loss of lift.
Steady precipitation, in contrast to showers, preceding a front is an indication of?
Stratiform clouds with little or no turbulence.
what would the temperature be at 8000 ft MSL under standard condition?
-1’C
A characteristic of the stratosphere is
Relatively small changes in temperature with an increase in altitude
It air temperature is +8 degrees at an elevation of 1350 feet and a standard temperature lapse rate exists, what will be the approximate freezing level?
5350ft MSL
Stability can be determined from which measurement of the atmosphere?
ambient lapse rate.
when flying a 3 degree glide slope, a constant tailwind shears to a clam wind. Which conditions should the pilot expect?
airspeed and pitch attitude increase , tendency to go above glides slope.
If you see 9900 on FB (Wind and temperatures Aloft Forecast, what wind speed is expect?
Light and variable or less than 5 knots.
