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the criteria used for special observations.
4.6.3 Runway visual range is not reported for precision approach runways. Runway visual range
observations are only made for specific take-off operations at approved aerodromes, using a
human observer system
4.6.5.1 The height of the base of clouds reported will not be restricted to 1 500 m (5 000 ft).
CHAPTER 6
6.5 Route forecasts are issued in a self-evident plain language form.
CHAPTER 7
CHAPTER 9
General
Information about wind shear observed on the approach or take-off paths is included, when
appropriate, in METAR and SPECI reports. Information on the expected existence of wind shear
is not provided.
The type, the format and the means and the point of supply of meteorological information to
operators and flight crew members are as agreed between the meteorological service provider and
the operator or flight crew member.
* Recommended Practice
APPENDIX 3
APPENDIX 4
4.2
The term CAVOK is not used.
The following criteria are used for horizontal visibility: 800, 1 500, 3 000, 5 000 and 8 000 m.
Runway visual range is not reported for precision approach runways. Runway visual range
observations are made only for specific take-off operations at approved aerodromes, using a
human observer system.
The following criteria are used for the height of the base of the lowest cloud layer or mass of BKN
or OVC extent - 200 (at selected aerodromes), 500, 1 000 and 1 500 ft.
Vertical visibility is not available.
Due to operational restrictions at Wellington International Airport, the surface wind is measured at
6 m (20 ft).
At all wind speeds and with any amount of variation in direction, wind direction will only be
reported as variable "VRB" when it is impossible to determine a single wind direction.
When wind speeds are 100 kt or greater, the exact wind speed is reported.
The term CAVOK is not used. When the horizontal visibility is expected to be 10 km or more, it
will be coded in whole kilometres followed immediately by the letters "km, e.g. 15 krn.
When the visibility is not the same in different directions, the lowest visibility is reported; when
the visibility in one or more directions is more than 50 per cent above the lowest visibility, the
lowest visibility is reported with its general direction in relation to the site of the meteorological
station. When the lowest visibility is less than 1 500 m and the visibility in another direction is
more than 5 000 m, the higher visibility is also reported with its general direction.
Intensity will be reported with "SH" to indicate the intensity of precipitation in showers. Intensity
will be reported with "TS" to indicate the intensity of precipitation associated with thunderstorms.
VC (vicinity) may be used with RA, DZ or SN when the observer has evidence that the observed
precipitation is of the type described.
Vertical visibility is not available.
Forms for special air-reports of volcanic activity are not available. However, a volcanic activity
report form for use by pilots is available from the civil aviation authority website.
* Recommended Practice
15/6/05
APPENDIX 5
1.2.2"
APPENDIX 6
1.1.1
The term CAVOK is not used. When the horizontal visibility is expected to be 10 km or more, it
will be coded in whole kilometres followed immediately by the letters "km", e.g. 15 krn.
Vertical visibility forecasts are not available. The term CAVOK is not used.
The following criteria are used for horizontal visibility: 800, 1 500, 3 000, 5 000 and 8 000 m.
The following criteria are used for the height of the base of the lowest cloud layer or mass of BKN
or OVC extent - 200 (at selected aerodromes), 500, 1 000 and 1 500 ft.
Vertical visibility forecasts are not available.
The following criteria are used for horizontal visibility: 800, 1 500, 3 000, 5 000 and 8 000 m.
The following criteria are used for the height of the base of the lowest cloud layer or mass of BKN
or OVC extent: 200 (at selected aerodromes), 500, 1 000 and 1 500 ft. The term CAVOK is not
used.
Vertical visibility forecasts are not available.
In SIGMETs issued for the New Zealand F'IR, the date-time groups are given in both local time
and UTC.
SIGMET information for volcanic ash and tropical cyclones is not issued in graphical format.
Information about wind shear observed on the approach or take-off paths is included, when
appropriate, in METAR and SPEC1 reports. Information on the expected existence of wind shear
is not provided.
APPENDIX 9
3.1 ASHTAMs are not issued.
* Recommended Practice
CHAPTER 4
4.5.1 a) METAR COR and SPECI COR are not issued.
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