Quantcast Figure 1-11. Present Weather Codes Reportable in METAR

 

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CHAPTER ONE
METEOROLOGY FLIGHT PLANNING
In addition to the notes of Figure 1-11, the following are a few of the conventions used to report
present weather conditions in METAR/SPECI observations.
1.  Present weather given in the body of the report occurs at the point of observation or within
five miles from the station. If the letters "VC" are used, the weather is in the vicinity of five to
ten miles. Any reported weather occurring beyond ten miles of the point of observation will be
included in the remarks portion of the METAR.
2.
Intensity refers to the precipitation, not its descriptor (TS or SH).
3.
TS may be coded by itself, or it may be coded with RA, SN, PL, GS, or GR.
WEATHER PHENOMENA1
QUALIFIER
INTENSITY  DESCRIPTOR  PRECIPITATION
OBSCURATION
OTHER
OR
PROXIMITY
1
2
3
4
5
MI Shallow
Light
DZ Drizzle
BR Mist
PO Well-
PR Partial
Developed
2
RA Rain
FG Fog
Moderate  BC Patches
Dust/ Sand
Whirls
DR Low
SN Snow
FU Smoke
+ Heavy
Drifting
SQ Squalls
SG Snow Grains
VA Volcanic Ash
VC In the
BL Blowing
Vicinity
FC Funnel Cloud(s)
2
IC Ice Crystals
DU
(Tornado or
SH Shower (s)
Waterspout)3
PL Ice Pellets
Widespread Dust
TS Thunder-
SS Sandstorm
GR Hail2
storm
SA Sand
DS Duststorm
FZ
Freezing
GS Small Hail
HZ Haze
and/or Snow
PY Spray
Pellets
UP Unknown
Precipitation
1. Weather groups are constructed by considering columns one to five above in sequence, i.e.,
intensity, followed by description, followed by weather phenomena (e.g., heavy rain shower(s)
is coded as +SHRA).
2. No symbol denotes moderate intensity. No intensity is assigned to Hail (GR) or Icing (IC).
3. Tornadoes and waterspouts in contact with the surface are coded +FC.
Figure 1-11 Present Weather Codes Reportable in METAR
1-10  AVIATION ROUTINE WEATHER REPORTS AND TERMINAL AERODROME
FORECASTS


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