Page 132 - UK ATM ANS Regulations (Consolidated) 201121

Part MET - ANNEX V - Specific Requirements for the Providers of Meteorological
Services

AUTOMATED PRE-FLIGHT INFORMATION SYSTEMS
Automated pre-flight information systems for the supply of meteorological information for self-
briefing, pre-flight planning and flight documentation should:
(a) provide for the continuous and timely updating of the system database and monitoring of
the validity and integrity of the meteorological information stored;
(b) permit access to the system by operators and flight crew members and also by other
aeronautical users concerned through suitable telecommunications means;
(c) use access and interrogation procedures based on abbreviated plain language and, as
appropriate, ICAO location indicators, and aeronautical meteorological code data-type
designators prescribed by WMO, or based on a menu-driven user interface, or other
appropriate mechanisms as agreed between the meteorological services provider and the
operators concerned; and
(d) provide for rapid response to a user request for information.
MET.TR.215(a) GM1 TO AMC3 Forecasts and other information
AUTOMATED PRE-FLIGHT INFORMATION SYSTEMS
(a) ICAO abbreviations and codes and location indicators are given respectively in ICAO Doc
8400 'Procedures for Air Navigation Services — ICAO Abbreviations and Codes (PANS-
ABC)’ and ICAO Doc 7910 'Location Indicators’.
(b) Aeronautical meteorological code data-type designators are given in the WMO Publication
No 386 'Manual on the Global Telecommunication System’.
MET.TR.215(b) GM1 Forecasts and other information
RESCUE COORDINATION CENTRES
(a) The elements which are not distributed routinely are:
(1) state of ground, and in particular any snow cover or flooding;
(2) sea-surface temperature, state of the sea, ice cover (if any) and ocean currents, if
relevant to the search area; and
(3) sea-level pressure data.
(b) On request from the rescue coordination centre, the designated aerodrome
meteorological office or meteorological watch office should arrange to obtain details of the
flight documentation which was supplied to the missing aircraft, together with any
amendments to the forecast which were transmitted to the aircraft in flight.
MET.TR.215(b) GM2 Forecasts and other information
RESCUE COORDINATION CENTRES
Information to be supplied to rescue coordination centres includes:
(a) significant en-route weather phenomena;
(b) cloud amount and type, particularly cumulonimbus; height indications of bases and tops;
(c) visibility and phenomena reducing visibility;
(d) surface wind and upper wind;
(e) state of ground, in particular, any snow cover or flooding;
(f) sea-surface temperature, state of the sea, ice cover if any and ocean currents, if relevant
to the search area; and
(g) sea-level pressure data.
MET.TR.215(d)(5) AMC1 Forecasts and other information
HEIGHT INDICATIONS REFERENCES TO EN-ROUTE METEOROLOGICAL CONDITIONS
All references to en-route meteorological conditions, such as height indications of upper winds,
turbulence or bases and tops of clouds, should be expressed in flight levels. Height indications
referred to en-route meteorological conditions may also be expressed in pressure, altitude or, for low-
level flights, in height above ground level.
MET.TR.215(e) AMC1 Forecasts and other information
FLIGHT DOCUMENTATION
(a) Where the forecasts are supplied in chart form, flight documentation for low-level flights,
including those in accordance with the visual flight rules, operating up to flight level 100 or
up to flight level 150 in mountainous areas or higher, where necessary, should contain the
following as appropriate to the flight:
(1) information from relevant SIGMET and AIRMET
(2) upper wind and upper-air temperature charts; and
(3) significant weather charts.
(b) Where the forecasts are not supplied in chart form, flight documentation for low-level
flights, including those in accordance with the visual flight rules, operating up to flight level
100 or up to flight level 150 in mountainous areas or higher, where necessary, should
contain the following information as appropriate to the flight: SIGMET and AIRMET
information.
MET.TR.215(e)(1) & (2) AMC1 Forecasts and other information
FLIGHT DOCUMENTATION - LEGEND FOR THE CHARTS
When the flight documentation related to forecasts of upper wind and upper-air temperature and
SIGWX phenomena is presented in the form of charts, it should be in accordance with the below
sheet of notations used in flight documentation.

20th November 2021 132 of 238