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(TREND BECMG AT1130 CLD OVC 1000FF)
TREND TEMPO TL1530 HVY SHRA CLD BKN CB
360M
(TREND TEMPO TL1530 HW SHRA CLD BKN CB
1mFr)
Element as specified
in Chapter 4
Trend forecast (0)j4
Detailed content
Name of the element (M)
Change indicator (M)'~
Period of change (c)'
Wind (c)'
Visibility (c)'
Weather phenomenon:
intensity (c)'
Weather phenomenon:
characteristics and
typ, (c)9,10.12
Name of the element (c)'
Cloud amount and vertical
visibility (c)'
Cloud type (c)'
Height of cloud base or the
value of verlical visibility (c)'
Templatefs)
TREND
NOSlG BECMG or TEMPO
Nnnnn andor Tlnnnn
or
ATnnnn
nnfb' [ABV] n[nl[nlKMH [MAX[ABVlnn[nIl
CAVOK
(or nnnl [ABV] n[n]KT [MAX[ABV]nn])
VlS nn[nl[n]M
or
VIS n[n]KM
FBL or
MOD or
HVY
DZ or RA
or SN or
SG or PL
or DS or
SS or
RDZ or
ERA or
SHGR or
SHGS or
SHPL or
SHRA or
SHSN or
TSGR or
TSGS or
TSPL or
TSRA or
TSSN
-
lC or FG
or BR or
SA or DU
or HZ or
FU orVA
or SQ or
PO 0rFC
or TS or
BCFG or
BLDU or
BLSA or
BLSN or
DRDU or
DRSA or
DRSN or
FZFG or
MlFG or
PRFG
CLD
NSW
SKC or
NSC
FEW or
SCT or
BKN or
OVC
CB or
TCU
nNn][n]M
(or
nnn[nlq
OBSC
-
[VER VIS
nn[n]M (or
VER VlS
n#-wll
Annex 3 - Meteorological Service for International Air Navigation Appendix 3
11. Precipitation types listed under 4.4.2.3 a) may be combined in accordance with 4.4.2.6 and Appendix 5, 2.2.4.1. Only moderate or heavy precipitation to be
indicated in trend forecasts in accordance with Appendix 5, 2.2.4.1.
12. Up to four cloud layers in accordance with 4.5.4.1 g).
13. Abbreviated plain language may be used in accordance with 4.8.1.2.
14. To be included in accordance with Chapter 6, 6.3.2.
15. Number of change indicators to be kept to a minimum in accordance with Appendix 5, 2.2.1, normally not exceeding three groups.
APP 3-16
Annex 3 - Meteorological Service for International Air Navigafion
Table A3-2. Template for METAR and SPECI
Key: M = inclusion mandatory, part of every message Note 1.- The ranges and resolutions for the numerical
C = inclusion conditional, dependent on elements included in METAR and SPECI are shown in
meteorological conditions or method of Table A3-5 of this appendix.
observation
0 = inclusion optional Note 2.- The explanations for the abbreviations used can
be found in the Procedures for Air Navigation Services -
ICAO Abbreviations and Codes (PANS-ABC, Doc 8400,.
APP 3-17 25/11/04
Examples
M ETAU
METAR COR
SPECl
YUDO'
2216302
AUTO
NIL
Templatefs)
METAR, METAR COR, SPEC1 or SPEC1 COR
nnnn
nnnnnn2
AUTO or NIL
Element as specified
in Chapter 4
Identification of the
type of report (M)
Location indicator (M)
Time of the
observation (M)
Identification of an
automated or missing
report (C)'
Detailed content
Type of report (M)
ICAO location indicator (M)
Day and actual time of the
obse~ationin UTC (M)
Automated or missing report
identifiir (C)
END OF METAR IF THE
Surface wind (M)
Visibility (M)
RVR (c)'
REPORT IS MISSING.
Wmd direction (M)
wind speed (M)
Signifmt speed variations ( c ) ~
Units of measurement (M)
Significant directional
variations (C14
Prevailing or mininium
visibility (M)'
Unidirectional
visibility (C)6
Minimum visibibty (C17
Direction of the minimum
visibility ( c ) ~
Name of the element (M)
Runway (M)
RVR (M)
nnn VRB 24015KMH VRBQKMH
I
[Plnn[nl
(24mKl-J (VRB2KT)
19022KMH
(19011KT)
OOOOOKMH
(00000KT)
140P199KMH
(140P99KT)
12012G35KMH
(12006G18KT)
24032G54KMH
(2401 6G27Kl-J
02020KMH 350V070
(02010KT 350V070)
0350 CAVOK
7000NDV
9999
OeOO
2000 1200NW
6000 2800E
R3210400
R101M0050
R14UP2000
R16UO650 R16C10500
R16W0450 R17UO450
qP]nn[n]
KMH (or KT)
nnnVnnn -
nnnn
NDV
nnnn
N or NE or E or SE or S or SW or W or NW
R
nn[nl'
[P or M]nnnn
C
A
v
0
K
Annex 3 - Meteorological Service for International Air Navigation Appendix 3
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