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Appendix 8

Regulation (EU) 2021/1338

Ranges and resolutions for the numerical elements included in volcanic ash advisory, tropical cyclone advisory, SIGMET, AIRMET, aerodrome and wind shear warnings

Note: 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) (1)

000–2 000

1

 

 

             for TC (index) (1)

00–99

1

3

Maximum surface wind:

             KT

00–99

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

1000

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:

             KMH

0–300

10

 

 

             KT

0–150

5

(1)        Non-dimensional.
Details
Source-Title: Appendix 8 View latest amendments
Erulesid: ERULES-1963177438-3071 Compare versions
Domain: Air traffic management/Air navigation services
Activitytype: Meteorological services (MET)
Applicabilitydate: 1 September, 2021
Entryintoforcedate: 1 September, 2021
Regulatedentity: MET provider
Regulatorysource: Regulation (EU) 2021/1338 Navigate
Regulatorysubject: Part-MET
Typeofcontent: IR (Implementing rule)
Origin: EASA
Category: EAR