GPS 400 Pilot’s Guide and Reference
190-00140-60 Rev. H
10-36
SECTION 10
ADDITIONAL FEATURES
To interpret wind speed, add the values of each of the
wind speed barbs. In Figure 10-49, there are two long
barbs (10 knots each) and one short barb (5 knots each).
Thus, the total wind speed is 25 knots. Adding the gust
offset to this gure gives winds gusting to 36 knots. Thus,
the symbol in Figure 10-49 indicates the surface wind at
KFRM is coming from a direction of 300° at a speed of
25 knots, gusting to 36 knots or greater. The data age is
11-20 minutes old.
Gust Offset
Wind Speed
Wind Vector
Data Age
Figure 10-49 Wind Symbol
Temperature - Dewpoints
The Temperature-Dewpoint Range symbols (Table
10-18) display the difference between the reported
temperature and dewpoint. Differences are shown in
degrees Fahrenheit.
Temp - Dewpoint Display Ranges
(Blank) Unknown
11°+
(Green)
7° - 10°
(Green)
0° - 6°
(Yellow)
Table 10-18 Temp-Dewpoint Ranges
This symbol in Figure 10-50 displays the difference
between the reported temperature and dewpoint as 7-10
degrees Fahrenheit at KSPW.
Figure 10-50 Temp-Dewpoint Symbol
Temperature
Dewpoint
