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PHAK Chapter 13

Updated: Apr 12, 2022

CHAPTER TITLE: Aviation Weather Services


Below is a list of the figures (diagrams, charts, and pictures) from the PHAK Chapter 13. They are listed in the order they are found in the Pilot's Handbook of Aeronautical Knowledge.


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FIGURE 13-1

Example of a weather radar scope.


FIGURE 13-2

WSR-88D Weather Radar Echo Intensity Legend.


FIGURE 13-3

WSR-88D Weather Radar Precipitation Intensity Terminology.


FIGURE 13-4

HIWAS availability is shown on sectional chart.


FIGURE 13-5

Descriptors and weather phenomena used in a typical METAR.


FIGURE 13-6

Reportable contractions for sky condition.


FIGURE 13-7

PIREP encoding and decoding.


FIGURE 13-8

Area forecast region map.


FIGURE 13-9

Winds and temperature aloft forecast.


FIGURE 13-10

Surface analysis chart.


FIGURE 13-11

Sample station model and weather chart symbols.


FIGURE 13-12

Weather depiction chart.


FIGURE 13-13

Significant weather prognostic chart.


FIGURE 13-14

36- (top) and 48-hour (bottom) surface prognostic chart.


FIGURE 13-15

Information page.


FIGURE 13-16

List of weather products and the expiration times of each.


FIGURE 13-17

NEXRAD radar display.


FIGURE 13-18

NEXRAD radar display (500 mile range). The individual color gradients can be easily discerned and interpreted via the legend in the upper right corner of the screen. Additional information can be gained by pressing the LEGEND soft key, which displays the legend page.


FIGURE 13-19

The AIRMET information box instructs the pilot to press the ENTER button soft key (ENT) to gain additional information on the selected area of weather. Once the ENTER soft key (ENT) is depressed, the specific textual information is displayed on the right side of the screen.


FIGURE 13-20

SIGMET/AIRMET legend display.


FIGURE 13-21

Graphical METAR legend display.


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