INFO Last updated on  15 JUL 2021                                                                PDF Version - Printable

GEN 3.5   METEOROLOGICAL SERVICES
1

RESPONSIBLE SERVICE(S)

1.1  

The meteorological services for civil aviation are provided by the Department of Meteorology under the Ministry of Disaster Management and Human Rights.

    The Director General,

    Department of Meteorology,

    383, Bauddhaloka Mawatha,

    Colombo7,

    Sri  Lanka

    Tel            : 94-11-2694104

                      94-11-2694846

    Tele Fax    : 94-11-2698311

    E-mail       : meteo1@sltnet.lk               

1.2 

The service is provided in accordance with the provisions contained in the following ICAO documents:

 

   ANNEX 3  -  Meteorological Services for International Air Navigation.

   DOC7030  - Regional Supplementary Procedures part 3-Meteorology.

1.3

Differences to these provisions are detailed in sub section GEN 1.7

2

AREA OF RESPONSIBILITY

2.1

Area meteorological watch is provided for the Colombo FIR.

3

METEOROLOGICAL OBSERVATIONS AND REPORTS

  

TABLE GEN 3.5.3  METEOROLOGICAL OBSERVATIONS AND REPORTS

Name of Station / Location Indicator

Type & Frequency of  observation/automatic observing equipment

Types of MET reports & Supplementary information included

Observation system & site(s)

Hours of operation

Climatological information

1

2

3

4

5

6

KATUNAYAKE / BandaranaikeIntl.Airport Colombo / (VCBI)

Half hourly plus special observations

METAR,  SPECI, SIGMET

TREND

TAF

Ultrasonic Wind sensor   located 80m and 100m from the RWY centerline on both RWY 04 and 22 respectively close to PAPI site. Dry & Wet bulb and Barometric Pressure sensors are also mounted on to 6m high wind sensor mast. Transmissometers are also located closed to Wind Sensor sites.

Ceilometer near the ILS Middle Marker at both approach ends. Complete observation Station(MWO) located at 500m from RWY centerline close to RWY 04 end.

H24

Climatological summaries AVBL

RATMALANA / Colombo Intl. Airport Ratmalana(VCCC)

Hourly and special observations.

METAR*

SPECI*

Suppl : Nil

Cup Anemometer fixed with wind wane, 120m from RWY centerline

H24

* BTN

0100/1300 UTC

Climatological

summaries AVBL

4

TYPES OF SERVICES

4.1

The Meteorological Office and Meteorological Watch Office at KATUNAYAKE / Bandaranaike Intl. Airport Colombo operates throughout the twenty-four hours (H24) and provide following services for Civil Aviation

 

a) Meteorological services for pre-flight/current operational planning for all flights operating  out of KATUNAYAKE / Bandaranaike Intl. Airport Colombo by means of:

(I)     Flight documentation and / or

II)    Displays;

 b) Area meteorological watch over the Colombo FIR with the supply of meteorological  information including SIGMET information to aircraft in flight through ATS radio channels. (See Subsection  VCBI AD 2);

 

  c) Supply hourly weather reports with trend-type landing forecasts at (H+10UTC) for the Mumbai METAR ROBEX Bulletin.

 

d)  Supply of hourly weather reports with trend-type landing forecasts at (H+40UTC) for VOLMET  Broadcasts.

 

  e)  Supply of meteorological information for ATS.

4.2

Meteorological consultation or briefing by a Meteorologist is always available at the Meteorological Office at KATUNAYAKE / Bandaranaike Intl. Airport Colombo either on telephone or in person.

4.3

In addition self-briefing display facility is always available for the crewmembers at the MET Briefing Office located in terminal building.

4.4

Routine aerodrome forecasts received from other meteorological offices are normally included in meteorological documentation without modification. When a required aerodrome forecast is not received, the Meteorological Office providing the documentation may issue a provisional forecast

4.5

Details of documentation supplied for each flight are determined by agreement between operator and the Meteorological Office. In general, the pilot-in-command is provided with documentation comprising a fixed time prognostic streamline / isotach / spot temperature chart for the isobaric surface of 250hpa, fixed time prognostic significant weather chart and forecasts for take-off, climb and descent and appropriate aerodrome forecasts in TAF code form.

4.6

After documentation has been issued and until take-off (that is, the latest estimated time of departure notified to the Meteorological Office), the Meteorological Office at KATUNAYAKE / Bandaranaike Intl. Airport Colombo makes available, amendments to the documentation. It is the responsibility of the operator's local representatives or the pilot-in-command to obtain any pre-departure amendment(s) from the Meteorological Office. The pilot-in-command may request pre-departure amendment(s) through the aerodrome control tower.

4.7

Climatological Summaries based on observation over a period of 25 years or longer are available for the following airport meteorological stations.

   a)  KATUNAYAKE / Bandaranaike Intl.Airport Colombo  (VCBI-43450)

   b)   RATMALANA / Colombo Intl. Airport Ratmalana  (VCCC-43467)

   c)   KANKESANTURAI / Jaffna (VCCJ-43400)

4.7.1

Applications for climatological summaries should be made to

 

     The Director General,

      Department of Meteorology,

   383, Bauddhaloka  Mawatha,     Colombo7, Sri Lanka.

      e-mail: meteo1@sltnet.lk

5.

 NOTIFICATION REQUIRED FROM OPERATORS.

5.1

It is the responsibility of the operator's local representative or the pilot-in-command to notify the meteorological office of any flight for which meteorological documentation is required (Refer ICAO Annex 3, para 2.3). As much prior notices as possible should be given and at least 11/2 hours notice would be required for non-scheduled flights. Personnel briefing by a forecaster is always available at the meteorological office at KATUNAYAKE / Bandaranaike Intl. Airport Colombo.

6.

AIRCRAFT REPORTS REQUIRED FROM OPERATORS.

6.1

Aircraft meteorological observations shall be made at ATS/MET reporting points within Colombo FIR, and recorded in sections I and III of the AIREP form and transmitted in flight by all aircraft except when;

               a)   the flight duration is less than 2 hours.

               b)   the altitude of the flight path is less than 5000ft, or;

               c)   the aircraft is less than 1 hourís flying time from the next intended point of landing.

6.2

The ATS/MET reporting points referred to in para 6.1 are listed below with the relevant ATS routes.     

       ATS

    ROUTE

       ATS / MET REPORTING POINTS (Co-ordinates)

1

2

      M641

BAXAM

(010303N 0850806E)

DOGAR

(020000S0875100E)

      P627

KADAP

(020000S  0840936E)

 

      N640

 ELATI

(020000S  0895742E)

 

6.3

The completed AIREP form shall be handed over to the meteorological office Post-flight with the least possible delay.