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)'.
EASA aviation regulations mandate specific ranges and resolutions for numerical data within aerodrome warnings, volcanic ash, tropical cyclone advisories, and wind shear alerts. This includes parameters like summit elevation, wind speed, central pressure, visibility, cloud heights, latitude, longitude, flight levels, and movement, ensuring standardized and precise aviation weather reporting.
* Summary by Aviation.Bot - Always consult the original document for the most accurate information.
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