Publication: Magyar Közlöny
Issue: MK-2009-104 (Year: 2009, Number: 104)
Era: 2004-2010
Section: 
Paragraph Index: 349

c) special air-reports by data link communications, the ATS units relay them without delay to their associated meteorological watch office and WAFCs. 5.9 Recording and post-flight reporting of aircraft observations of volcanic activity Special aircraft observations of pre-eruption volcanic activity, a volcanic eruption or volcanic ash cloud shall be recorded on the special air-report of volcanic activity form. A copy of the form shall be included with the flight documentation provided to flights operating on routes which, in the opinion of the meteorological authority concerned, could be affected by volcanic ash clouds. ___________________ ANNEX 3 6-1 7/11/07 5/11/08 No. 74 CHAPTER 6. FORECASTS Note.— Technical specifications and detailed criteria related to this chapter are given in Appendix 5. 6.1 Interpretation and use of forecasts 6.1.1 Owing to the variability of meteorological elements in space and time, to limitations of forecasting techniques and to limitations caused by the definitions of some of the elements, the specific value of any of the elements given in a forecast shall be understood by the recipient to be the most probable value which the element is likely to assume during the period of the forecast. Similarly, when the time of occurrence or change of an element is given in a forecast, this time shall be understood to be the most probable time. Note.— Guidance on the operationally desirable accuracy of forecasts is given in Attachment B. 6.1.2 The issue of a new forecast by a meteorological office, such as a routine aerodrome forecast, shall be understood to cancel automatically any forecast of the same type previously issued for the same place and for the same period of validity or part thereof. 6.2 Aerodrome forecasts 6.2.1 An aerodrome forecast shall be prepared by the meteorological office designated by the meteorological authority concerned. 6.2.2 An aerodrome forecast shall be issued at a specified time and consist of a concise statement of the expected meteorological conditions at an aerodrome for a specified period. 6.2.3 Aerodrome forecasts and amendments thereto shall be issued as TAF and include the following information in the order indicated:

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