Page 45 - AFMAN 15-111, 12 MAR 2019
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AFMAN15-111 12 MARCH 2019 45
Chapter 10
PRESENT WEATHER
10.1. Introduction. This chapter describes present weather and reporting standards including
qualifiers and weather phenomena. Reports may be instrument derived, physically observed or
determined using a combination of the two. Unless otherwise noted, the term “on station” refers
to phenomena detected/determined to be occurring within 5NM of the point of observation.
10.2. Present Weather Group (w'w'). The following general rules apply when reporting
present weather in a METAR or SPECI report:
10.2.1. Weather occurring within 5 SM (unless directed elsewhere in nautical miles for
thunderstorms and lightning) of the point of observation is encoded in the body of the report.
Weather occurring in the vicinity of the station (between 5 and 10 SM unless directed
elsewhere in nautical miles for thunderstorms and lightning) is also encoded in the body of the
report. FBWOSs only use the vicinity (VC) qualifier with thunderstorms (TS). Augmented
stations may report weather not occurring at or in the vicinity of the station in the remarks.
