GM1 MET.TR.235 Aerodrome warnings and wind
shear warnings and alerts
RANGES AND RESOLUTIONS — AERODROME WARNINGS
(a) The ranges and resolutions for the numerical elements included in aerodrome
warnings are shown below:
|
Ranges
and resolutions for the numerical elements included in volcanic ash and
tropical cyclone advisories, SIGMET, AIRMET, aerodrome and wind shear
warnings Note:
The row numbers in the ‘Ref.’ column are included only for clarity and ease
of reference, and are not part of the template. |
|||
|
Ref. |
Elements |
Range |
Resolution |
|
1 |
Summit elevation: FT |
000–27 000 |
1 |
|
|
M |
000–8 100 |
1 |
|
2 |
Advisory number: for VA (index)* |
000–2 000 |
1 |
|
|
for TC (index)* |
00–99 |
1 |
|
3 |
Maximum surface wind: KT |
00–199 |
1 |
|
4 |
Central pressure: hPa |
850–1 050 |
1 |
|
5 |
Surface wind speed: KT |
30–99 |
1 |
|
6 |
Surface visibility: M |
0000–0750 |
50 |
|
|
M |
0800–5 000 |
100 |
|
7 |
Cloud: height of base: FT |
000–1 000 |
100 |
|
8 |
Cloud: height of top: FT |
000–9 900 |
100 |
|
|
FT |
10 000–60 000 |
1 000 |
|
9 |
Latitudes: ° (degrees) |
00–90 |
1 |
|
|
(minutes) |
00–60 |
1 |
|
10 |
Longitudes: ° (degrees) |
000–180 |
1 |
|
|
(minutes) |
00–60 |
1 |
|
11 |
Flight levels: |
000–650 |
10 |
|
12 |
Movement: KT |
0–150 |
5 |
|
|
KMH |
0–300 |
10 |
|
* Non-dimensional |
|||
(b) The explanations for the abbreviations can
be found in ICAO Doc 8400 'Procedures for Air Navigation Services —
ICAO Abbreviations and Codes (PANS-ABC)'.
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