# Commission Implementing Regulation (EU) 2017/373 of 1 March 2017 laying down common requirements for providers of air traffic management/air navigation services and other air traffic management network functions and their oversight, repealing Regulation (EC) No 482/2008, Implementing Regulations (EU) No 1034/2011, (EU) No 1035/2011 and (EU) 2016/1377 and amending Regulation (EU) No 677/2011 (Text with EEA relevance), Appendix 8: Ranges and resolutions for the numerical elements included in volcanic ash advisory, tropical cyclone advisory, SIGMET, AIRMET, aerodrome warning and wind shear warning

Extent: E+W+S+N.I.

Non-dimensional.;
Elements
Range
Resolution
Summit elevation:
M
000–8 100
1
FT
000–27 000
1
Advisory number:
for VA (index)
000–2 000
1
for TC (index)
00–99
1
Maximum surface wind:
MPS
00–99
1
KT
00–199
1
Central pressure:
hPa
850–1 050
1
Surface wind speed:
MPS
15–49
1
KT
30–99
1
Surface visibility:
M
0000–0750
50
M
0800–5 000
100
Cloud: height of base:
M
000–300
30
FT
000–1 000
100
Cloud: height of top:
M
000–2 970
30
M
3 000–20 000
300
FT
000–9 900
100
FT
10 000–60 000
1 000
Latitudes:
° (degrees)
00–90
1
(minutes)
00–60
1
Longitudes:
° (degrees)
000–180
1
(minutes)
00–60
1
Flight levels:
000–650
10
Movement:
KMH
0–300
10
KT
0–150
5

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Source: https://www.legislation.gov.uk/eur/2017/373/annex/V/appendix/8 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-373/annex-V/appendix-8
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.