AP.III.D.R2d

From the FAA library

• Pilot's Handbook of Aeronautical Knowledgep. 12-15
  Chapter 12: Weather Theory › Atmospheric Stability › Clouds

  smoke. This type of fog is common over bodies of water during the coldest times of the year. Low-level turbulence and icing are commonly associated with steam fog. Ice fog occurs in cold weather when the temperature is much ... determined by its height, shape, and characteristics. They are classified according to the height of their bases as low, middle, or high clouds, as well as clouds with vertical development. [Figure…

• Aeronautical Information Manualp. PCG A-9
  Pilot/Controller Glossary › A

  issued when any of the following weather phenomena are occurring or expected to occur: a. Moderate turbulence b. Low-level windshear c. Strong surface winds greater than 30 knots d. Moderate icing e. Freezing level f. Mountain obscuration…

• Pilot's Handbook of Aeronautical Knowledgep. 12-24
  Chapter 12: Weather Theory › Air Masses › Turbulence

  shear turbulence has been encountered several thousand feet above and 20 miles laterally from a severe storm. A low-level turbulent area is the shear zone associated with the gust front. Often, a “roll cloud” on the leading edge…

• Aeronautical Information Manualp. 7-1-62
  Chapter 7. Safety of Flight › Section 1. Meteorology › 7-1-27. Thunderstorm Flying

  land or takeoff in the face of an approaching thunderstorm. A sudden gust front of low level turbulence could cause loss of control. 2. Don’t attempt to fly under a thunderstorm even if you can see through…

• Pilot's Handbook of Aeronautical Knowledgep. 13-16
  Chapter 13: Aviation Weather Services › Weather Charts › Significant Weather Prognostic Charts

  weather prognostic chart, as well as the symbols typically used to depict precipitation. The two panels depict freezing levels, turbulence, and low cloud ceilings and/or restrictions to visibility (shown as contoured areas of MVFR and IFR conditions). These charts enable…

• Pilot's Handbook of Aeronautical Knowledgep. 12-11
  Chapter 12: Weather Theory › Wind and Currents › Low-Level Wind Shear

  prepared to react immediately to these changes to maintain control of the aircraft. The most severe type of low-level wind shear, a microburst, is associated with convective precipitation into dry air at cloud base. Microburst activity may be indicated ... microburst wind. and headwind losses of 30–90 knots, seriously degrading performance. It can also produce strong turbulence and hazardous wind direction changes. Consider Figure 12-17: During an inadvertent takeoff into a microburst, the plane may first experience…