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KMD 250 Pilot's Guide
Section 2
FIS Operation
Rev 4 Aug/2007
GRAPHICAL METAR
The graphical METAR is derived from the most currently received tex-
tual METAR or SPECI data from reporting sites. This is displayed on a
map background to enhance
situational awareness as
shown on Figure 2-5.
The graphical METAR icon is
gray when the textual METAR
or SPECI report exceeds 75
minutes (AGED), but is less
than the textual METAR
expiration time of 120 minutes.
Look at the textual report for
ceiling and visibility informa-
tion.
CAUTION: Graphical METAR data must be used for strategic plan-
ning purposes only. Due to inherent delays, areas of coverage
and relative age and availability of the data that can be experi-
enced, Graphical METAR data cannot be viewed as an absolute
depiction of conditions at a specific location.
Graphical METARs are shown using two color coded boxes, one indi-
cating ceiling (upper box), the other visibility (lower box). Next to the
boxes is the ICAO station identifier for the airport to which the METAR
pertains. Color coding for the boxes is specified in the table below:
Figure 2-5
Value Added Service Weather Products
KMD 250 FIS_R4 8/13/07 10:07 AM Page 2-17