Turbulence - P-3040067

METEOROLOGY FLIGHT PLANNING

CHAPTER TWO

Figure 2-6 Significant Weather Prognostic Legend

The bottom two panelsthe surface prognosticuse a different legend, as shown in Figure 2-6.

These lines and shadings depict the type and coverage of precipitation forecast to occur. Areas

enclosed by solid lines indicate steady precipitation, while broken lines (dash-dot) indicate areas

of showery precipitation. The area will be shaded if precipitation is expected to cover 1/2 or

more of the area. If not, there will be no shading. Additionally, a symbol will be included from

the present weather column of Figure 2-3 to represent the particular type of precipitation, such as

rain, drizzle, or snow. A single symbol denotes intermittent precipitation, while a double symbol

denotes continuous precipitation.

Turbulence

Symbols shown in an area of turbulence denote intensity (Figure 2-6). The numbers to the left of

a slash (/) indicate tops of forecasted turbulence, and numbers to the right indicate the base of the

forecasted turbulence in hundreds of feet MSL. No figure to the right of the slash indicates

turbulence from the surface upward, while absence of a figure to the left of the slash indicates

turbulence above the limits of the chart (24,000 feet MSL).

DATA DISPLAYED ON WEATHER IMAGERY PRODUCTS

2-7