GEN 3.5  Meteorological services

1  Responsible service

The meteorological services for civil aviation are provided by Ministry of Nature Protection of the Republic of Armenia.

Post:

Ministry of Nature Protection of the Republic of Armenia
Government Bldg. 3, Republic Sq., Yerevan, 375010
Republic of Armenia

Tel:+37410 521099

Tel:+37411 818501

Fax:+37411 818506

Email:min_ecology@mnp.am

1.1 The meteorological center of aerodrome “Zvartnots” is responsible for forecasts and for observations at “Zvartnots” aerodrome.
Post:

Aviameteorological center airport “Zvartnots”
Yerevan-42 Republic of Armenia

Tel:+37460 373360

Fax:+37410 373360

AFS:UDYZYMYX

Email:meteo@arminco.com

1.2 The meteorological division of aerodrome “Shirak” is responsible for forecasts and for observations at “Shirak” aerodrome.
Post:

Gyumri “Shirak” Meteorological Unit of "Zvartnots" CJSC Aviameterological Center
Gyumri-11 Republic of Armenia

Tel:+374312 40891

Fax:+374312 40958

AFS:UDSGYMYX

The service is provided in accordance with the provisions contained in the following ICAO documents:
  • Annex 3 — Meteorological Service for International Air Navigation
  • Doc 7030 — Regional Supplementary Procedures
  • Doc. 7754 Air Navigation Plan, EUR. Region.

Differences to these provisions are detailed in subsection GEN 1.7.

2  Area of responsibility

Meteorological service is provided within the Yerevan FIR.

3  Meteorological observations and reports

3.1 Yerevan “Zvartnots” aerodrome.

Table GEN 3.5.3.1 Meteorological observations and reports
Name of station/Location indicatorType & frequency of observation/automatic observing equipmentTypes of MET reports & Supplementary Information includedObservation System & Site(s)Hours of operationClimatological information
123456
Yerevan UDYZSpecial obs. Half hourly, MET-System AMIS-RF 2 complicit METAR, SPECI, TREND SFC wind sensors: Screw anemometers 300 m FM THR RWY 27 and 09 Height 6 m.
Screw anemometers on the tower (height 30 m). RVR equipment: Nefilometers FD12, 300 m FM RWY 09, near the middle section of runway and 300 m FM THR RWY 27.
Ceilometers: 300 m FM THR RWY 09 and ceilometers at a distance about 1000 m from the THE RWY 09
Thermometer and humidity sensors: at the meteorological park.
H24Climatological tables AVBL
Zvartnots” aerodrome.
Surface wind is measured by wind sensors located near both ends of the runway at a lateral distance of 120 m from the runway centerline and at the height of 6 m above the ground. Wind sensor is installed also on the tower (height 30 m).
Visibility on RWY is measured by nefilometers located near at the both ends of the runway and near middle point of the runway.
When the horizontal visibility is less than 1500 m (1000 during twilight and night), nefilometers values are transformed to RVR by using tables for different levels of runway edges light.
The height of the cloud base is measured by ceilometers, installed near the threshold and at a distance about 1000 m from the threshold.
Sensors placed at the meteorological park define temperature and dew point.
Wind shear is defined by:
  1. Wind sensor installed on the tower (height 30 m);
  2. Radiosonde;
  3. Information received from aircraft reports.

3.2 Gyumri “Shirak” aerodrome.

Table GEN 3.5.3.2 Meteorological observations and reports
Name of station/Location indicatorType & frequency of observation/automatic observing equipmentTypes of MET reports & Supplementary Information includedObservation System & Site(s)Hours of operationClimatological information
123456
Gyumri/Shirak UDSGSpecial obs, Half hourly MET-System AMIS-RF METAR, SPECI, TREND SFC wind sensors: screw anemometers 300 m FM THR RWY 02 (Height 10 m) and RWY 20 (Height 6 m). Screw anemometers Height 30 m. RVR equipment Nefilometers FD-12 near the middle section of runway and 300 m FM THR RWY 20 Ceilometers: 300 m FM THR RWY and ceilometers at a distance about 1400 m from the threshold. Thermometers and humidity sensors: at the meteorological park. H24Climatological tables AVBL

Surface wind is measured by wind sensors located near both ends of the RWY at a lateral distance of 120 m from the runway center line and at the height of 10 m above the ground.
Near this sensor installed other wind sensor at the height of 30 m above the ground. Visibility on RWY is measured by nefilometers located near the middle section of runway and 300 m FM THR RWY 20..
When the horizontal visibility is less than 1500 m (1000 m during twilight), nefilometers values are transformed to RVR automatically.
The height of the cloud base is measured by celiometers, installed near the threshold and at a distance about 1000m. from the threshold.
Sensors placed at the meteorological park define temperature and dew point.
Wind shear is defined by:
­ wind sensor installed near the meteorological park (height 30 m);

­ information received from aircraft reports.

4  Types of services

4.1 Met flight documentation and consultation by a meteorological situation (on request) at the “Zvartnots” aerodrome is supplied to flight crew and ATC controllers by the airport meteorological center.

The flight documentation comprises a significant weather chart, upper wind and upper air temperature chart, and the latest available aerodrome forecast, actual weather for the destination and for alternate aerodromes.

Aerodrome actual weather reports, and aerodrome forecasts are issued as listed in Table GEN -3.5.3.1 and the respective AD-part.

Area forecast for low-level flights including under VFR, operating below FL 150 (572 hPa) within Yerevan FIR is issued by Meteorological Center.
The low-level forecast contains the following information (as indicated Annex3, item 6.6.2): Special features of the meteorological situation, significant weather phenomena as specified for low level flights, surface visibility, clouds, (height of cloud base is given above the sea level), frizzing level, minimum QNH, upper winds and upper-air temperatures.
The flight documentation comprises a significant weather chart, upper wind and upper air temperature chart, the latest available aerodrome forecast, actual weather for the destination and for alternate aerodromes.

4.2 MET flight documentation and consultation by a meteorological situation (on request) at the “Gyumri” aerodrome is supplied to flight crew and ATC controllers by the aerodrome meteorological office. Aerodrome reports, and aerodrome forecasts are issued as listed in Table GEN-3.5.3.2 and the respective AD-part.

5  Notification required from operators

The notification required from operators is provided in accordance with the ICAO Annex 3part 2.3.

6  Aircraft reports

Aircraft observation are made during flight within Yerevan FIR as well as during the climb-out or approach phases of flight regarding to all weather phenomena, which in opinion of pilot-in-command may affect safety and the efficiency of other aircraft operation or are not accurately forecasted.
Aircraft meteorological observations shall be reported to appropriate ATS units as soon as practicable.
Aircraft crew shall always report icing (irrespective of intensity), moderate or severe turbulence and wind shear encountered, even if previously reported to the aircraft. Observations, which have not been possible to report during the flight, shall be reported as soon as practicable on arrival.

7  VOLMET service

NIL

8  SIGMET service

Table GEN 3.5.8 SIGMET service
Name of MWO/ location indicatorsHoursFIR or CTA servedType of SIGMET/validitySpecific procedures ATS unit servedAdditional information
1234567
“Zvartnots” MET. Center UDYZ H24Yerevan FIRSIGMET/6 HRNILYerevan ACC/APP NIL
8.1  General

For the safety of air traffic, the Meteorological Authority maintains an area meteorological watch and warning service. This service consists partly of a continuous weather watch within the lower and upper FIR and the issuance of appropriate information (SIGMET) by Meteorological Watch Offices and partly of the issuing of warnings for the respective aerodrome and, subject to agreement, for other aerodromes by all aeronautical MET offices.

8.2  Area meteorological watch service

NIL

8.3  Warning service
Aerodrome warnings are provided by MET center of airport “Zvartnots” and MET office airport “Shirak”.
Warnings for the protection of parked and moored aircraft or other equipment at the airport will be issued if one or several of the following phenomena:
  • squall2
  • thunderstorm
  • hail
  • frost3
  • surface wind speed is 15 meters per second (30 KT) and more (irrespective of direction)
  • ­ tropical cyclone
  • freezing precipitation
  • snow
  • hoar frost or rime
  • sand-storm
  • dust-storm
  • rising storm or dust
  • strong surface wind and gusts

9  Other automated meteorological services

AMIS-RF – Aerodrome Meteorological Information System.

Note: Details of meteorological briefing at aerodromes are given in the individual aerodrome sections, i.e. AD 2