AMC1 MET.TR.235 Aerodrome warnings and wind shear warnings and alerts
AERODROME WARNINGS — TEMPLATE FOR AERODROME WARNINGS
(a)
Aerodrome warnings should be issued in accordance with the template
below or in another format where required by operators or aerodrome
meteorological offices.
|
Template for aerodrome
warnings Key: M = inclusion
mandatory; C = inclusion
conditional, included whenever applicable. Note 1: The ranges and resolutions for the
numerical elements included in aerodrome warnings are provided in GM1 MET.TR.235. Note 2: The row numbers in the ‘Ref.’ column are
included only for clarity and ease of reference, and are not part of the
aerodrome warning. |
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|
Ref. |
Element |
Detailed
content |
Templates |
|
1 |
Location
indicator of the aerodrome (M) |
Location
indicator of the aerodrome |
nnnn |
|
2 |
Identification
of the type of message (M) |
Type
of message and sequence number |
AD
WRNG [n]n |
|
3 |
Validity
period (M) |
Day
and time of validity period in UTC |
VALID
nnnnnn/nnnnnn |
|
4 |
IF
THE AERODROME WARNING IS TO BE CANCELLED, SEE DETAILS AT THE END OF THE
TEMPLATE. |
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|
5 |
Phenomenon
(M) |
Description
of the phenomenon causing the issuance of the aerodrome warning |
TC
nnnnnnnnnn or [HVY]
TS or GR or [HVY]
SN [nnCM] or [HVY]
FZRA or [HVY]
FZDZ or RIME
or [HVY]
SS or [HVY]
DS or SA or DU or SFC
WSPD nn[n]KT MAX nn[n] or SFC WIND nnn/nn[n]KT MAX nn[n] or SQ or
FROST or TSUNAMI
or VA[DEPO]
or TOX
CHEM or Free
text up to 32 characters |
|
6 |
Observed
or forecast phenomenon (M) |
Indication
whether the information is observed and expected to continue, or
forecast |
OBS
[AT nnnnZ] or FCST |
|
7 |
Changes
in intensity (C) |
Expected
changes in intensity |
INTSF
or WKN
or NC |
|
OR |
|||
|
8 |
Cancellation of the aerodrome warning |
Cancellation of the aerodrome warning
referring to its identification |
CNL AD WRNG [n]n nnnnnn/nnnnnn |
(b) When the above template is used, the
sequence number referred to in the template should correspond to the number of
aerodrome warnings issued for the aerodrome since 00.01 UTC on the day
concerned.
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