Weather services

What weather phenomenon is impplied within an area enclosed by small scalloped lines on a US high level significant weather prognostic chart?. cumulunimbus clouds, icing and moderate or grater turbulance. N/A.

Which statment pertaining to the following terminal aerodrome forecast (TAF) is true?. SKC in the valid period indicates no significant weather and sky clear. N/A.

When turbulence causes changes in altitude and or attitude, but aircraft control remains positive, that should be reported as. modarate. N/A.

The difference found by subtracting the temperature of a parce of air theoretically lifted from the surface to 500 millibars and the existing temperature at 500 millibars is called the. lifted index. N/A.

On a surfave analysis chart, the solid lines that depict sea level pressure patterns are called. isobars. N/A.

What single reference contains information regarding a volcanic eruption, that is occuring or expected to occur?. In flight weather advisories. N/A.

To best determine general forecast weather conditions covering a flight information region, the pilot should refer to. Graphical forecast for aviation (GFA). N/A.

What is the upper limit of the low level significant weather prognostic chart?. 24.000 feet. N/A.

Which weather chart depict conditions forecast to exist at a specific time in the future?. 12 hour significant weather prognostic chart. N/A.

What does the contraction VRB in terminal aerodrome forecast (TAF) mean?. Wind direction is variable. N/A.

In the following METAR/TAF for HOU, what is the cealing and visibility forecast on the 7th day of the month at 0600z?. 4 statute miles visibility and an overcast cealing at 1200 feet AGL. N/A.