1.

Responsible Services

1.1.

The Meteorological Services for civil aviation are provided by the India Meteorological Department, Ministry of Earth Sciences (MoES), Government of India.

Director General of Meteorology

India Meteorological Department

Mausam Bhavan,

Lodhi Road, New Delhi - 110003

Telephone:

+91-11-24618241 to 8247

Fax:

+91-11-2469 9216, +91-11-24623220

Email:

dgm.hq@imd.gov.in dgmmet@gmail.com

Website:

www.imd.gov.in

2.

Area of responsibility

2.1

Meteorological service is provided within the Chennai, Delhi, Kolkata, and Mumbai Flight Information Regions (FIRs)

3.

Meteorological observations and reports

3.1

Meteorological observations and reports are provided as per the following details:

Note:The details of legend used in the main table are provided below the main table.

Agartala/VEAT

Hourly + Half hourly during HO routine plus special

METAR (MET

REPORT), SPECI (SPECIAL),TREND

FORECAST, TAF,

TAKE OFF,

LOCAL AREA

FORECAST,

AERODROME

WARNING, LIGHT

AIRCRAFT

WARNING, ROUTE FORECAST FOR NON-SCHEDULED FLIGHT

DCWIS & PWD22 at RWY 18 DIWE at ATC TWR

H24

AVBL

Agatti/VOAT

Hourly + Half hourly during HO routine plus special" with "odh

METAR, SPECI

(SPECIAL), LIGHT

AIRCRAFT

WARNING

HAWOS,

and DIWE at RWY 22 near the observatory

HO

AVBL

Ahmedabad/VAAH

Half hourly routine plus special

METAR/ SPECI

(SPECIAL),TREND

FORECAST, TAF,

TAKE OFF,

LOCAL AREA

FORECAST,

AERODROME

WARNING, LIGHT

AIRCRAFT WARNING, BRIEFING TO PILOTS AND OTHER AGENCIES, VVIP Folders

DCWIS with FSM at RWY 23

and RWY 05

H24

Available

Aligarh/VIAH

Hourly + Half hourly during HO routine plus special

METAR (MET REPORT), SPECI (SPECIAL)

DCWIS AT RWY29

HO

NOT AVBL

Amaravati/VAAM

Routine observations Half Hourly/Hourly during HO and Special observations if required.

Automatic Observing Instrument: NIL

METAR/SPECI/TREND. AERODROME WARNINGS IN CONSULTATION WITH AMO, TAF BY AMO

S.S. (4 THERMOMETER),WINDVANE, ANEMOMETER,VAISALA DIGITAL STANDARD BAROMETER

As per ATC Watch hours

Not Available

Ambikapur/VEAP

Half hourly

METAR (MET REPORT), SPECI (SPECIAL)

Digital Barometer

Wine Vane and Anemometer, Whirling Psychrometer

HJ

Not Available

Amritsar/VIAR

Half hourly routine + special observation + Additional reports + Aerodrome Warnings

METAR/ SPECI / Additional Report

TREND/ Aerodrome Warnings

Drishti Transmissometer at RWY 34, MID & RWY 16,

FSM/PWD at RWY 34, RWY

34 MID, RWY 16, DCWIS

INSTALLED AT RWY 34 AND

RWY 16 AT FRANGIBLE

MAST

H24

AVBL

Aurangabad/VAAU

Hourly + Half hourly + Special Observation during HO

METAR/TREND

DIWE in MET briefing Room

HO

Not AVBL

Ayodhya/VEAY

Half hourly during HO and special observation if required

METAR/SPECI/TREND. AERODROME WARNINGS IN CONSULTATION WITH AMO LUCKNOW, TAF AND LOCAL AREA FORECAST BY AMO LUCKNOW

DCWIS along with PWD at RWY29 and DCWIS at RWY11

HO

Not AVBL

Azamgarh Airport/VEAH

Hourly

METAR (MET REPORT), SPECI (SPECIAL),TREND

DCWIS AT RWY14 , Getac Portable Barometer,

SINGLE STEVENSON SCREEN, ORG, WIND WANE, ANEMOMETER.

HJ hourly ,HS half hourly

Not AVBL

Barapani (Shillong)/

VEBI

Hourly + Half hourly during HO

METAR/TREND

DCWIS, RVR PWD at RWY 04

HJ

AVBL

Belagavi/VOBM

Hourly + Half hourly during HO routine plus special

METAR/SPECI

DCWIS, RVR PWD 22 Sensors

at RWY 26

HO

Not AVBL

Bengaluru (Devanahalli)/ VOBL

Half hourly

METAR/TREND

DCWIS at 09L,27R,09R,27L; FSM 09L, 09LMID, 27RMID,27R,09R,09R-MID, 27LMID, 27L; Drishti- 09R, 09R MID, 27L-MID,27L

H24

Available (VOBG)

Bengaluru/ VOBG

Half hourly

METAR/TREND

DCWIS at RWY 27; FSM at RWY 27

H24

Available

Bilaspur/VEBU

Hourly and Half hourly routine plus special

observations during HO

"METAR/ SPECI,TREND, TAF/LOCAL AREA FORECAST/AERODROME

WARNING PROVIDED BY AMO Nagpur"

S.S.(4 THERMOMETER),WINDVANE,ANEMOMETER(U/S),DRUCK ANDROID DIGITAL BAROMETER, VAISALA PORTABLE DIGITAL BAROMETER,PSYCHROMETER

HO

Not AVBL

Bhavnagar/VABV

Half hourly during HO

METAR/SPECIAL/TREND FORECAST

DCWIS installed with FSM at RWY 25

HO

AVBL

Bhopal (Bairagarh)/

VABP

Half hourly METAR 24X7,THREE HOURLY SYNOP

METAR (MET

REPORT),

SPECI

(SPECIAL),TREND

FORECAST, SYNOP, TAF,

TAKE OFF,

LOCAL AREA

FORECAST,

AERODROME

WARNING, LIGHT

AIRCRAFT

WARNING, ROUTE FORECAST FOR NON-SCHEDULED FLIGHT

DCWIS WITH FSM AT RWY 30 & RWY 12 AND FSM AT RWY 30 MID

H24

AVBL

Bhubaneswar/VEBS

Half hourly

during HO

METAR/ TREND

DCWIS & FSM AT BOTH THE RWY 14 & 32, DSB & PORTABLE AVAITION MET INSTRUMERNTS AVAILABLE.

H24

Available

Calicut/VOCL

Half hourly

METAR/SPECI WITH TREND FORECAST

DCWIS at RWY28 and

RWY10,

FSM at RWY 28 and RWY 10.

H24

AVBL

Chennai/VOMM

Half hourly

METAR/TREND

DCWIS at RWY 07, RWY 25,

RWY 12 AND RWY 30

Transmissometer at RWY25

and RWY07

FSM at RWY 07, RWY 25,

RWY 12..

H24

Available

Chitrakoot/VECT

Hourly + Half hourly during HO routine plus special

METAR (MET REPORT), SPECI (SPECIAL),TREND,TAF(GENERATED BY MC LKO)

"DCWIS CLIENT DISPLAY IN ATC TOWER ,

DCWIS at RWY06,GETAC PORTABLE BAROMETER"

HO

Not AVBL

Cochin Intl/VOCI

Half hourly, routine plus special

METAR , SPECI

(LOCAL SPECIAL) TREND

FORECAST,

DCWIS at RWY 27 and RWY 09

DRISHTI -Transmissometer at RWY 27

LASER CEILOMETER at RWY 27

FSM at RWY 09 and 27 END

H24

AVBL

Coimbatore/VOCB

Half hourly

METAR/TREND

DIWE at ATC TWR DCWIS at RWY 23, FSM at RWY 23

H24

Available

Cooch Behar/VECO

Hourly + Half hourly during HO

METAR/SPECI WITH TREND FORECAST

DIWE at MBR and ATC TWR,

DCWIS and PWD& visibility

sensor beside runway 22.

HJ

Not AVBL

Dehradun/VIDN

"Half Hourly, routine plus

Special observations during HO

METAR/SPECI/TREND FORECAST

DCWIS with FSM & DRISHTI

at RWY 08 .

HS

AVBL

Datia/VIDT

Half hourly

Met Report + Speci

SS + Kew pattern barometer + Digital Barometer

HO

Not Available

Delhi/VIDP

Half hourly

METAR/TRENDAND TAF. LOCAL AREA FORECAST,AERODROME WARNING/LIGHT AIRCRAFT WARNING/WIND SHEER WARNING, ROUTE FORECAST

DCWIS at RWY11 L,RWY 29 R, RWY 11 R, RWY 29 L,

RWY10, RWY 28, RWY 09, RWY 27,RWY 29 L TDZ

Transmissometers at RWY27,

RWY 27 MID, RWY11 R BEG,

RWY11 R TDZ, RWY29 L MID,

RWY29 L TDZ, RWY29 L

BEG, RWY10, RWY 28 MID,

RWY28

FSM at RWY 09,RWY 27 RWY 29R BEG, RWY 29 R TDZ,

RWY 29 R MID, RWY 11 L TDZ, RWY 11 L BEG

Ceilometer at RWY 27 TDZ, RWY 28 TDZ, RWY 29L TDZ and RWY 29R TDZ

H24

Available

Deoghar/VEDO

Half hourly during HO and extention as per requirement /Automatic NIL

METAR/ TREND FROM AMS Deoghar and TAF, Local Area Forecast,aerodrome Warning/light Aircraft Warning/wind Sheer Warning, Route Forecast As per consult with AMO Patna

Complete setup of DCWIS Instrument & PWD/RVR sensor at RWY27 END ,

GETAC Portable Digital Barometer, VIP portable toolkit"

HO

CLIMS DATA ENTRY Till date is Completed.

Dibrugarh (Mohanbari)/

VEMN

Hourly + Half hourly during HO

METAR/SPECI/ TREND Forecast/TAF/ TAKE OFF/Local Area Forecast/ Aerodrome Warning,/route Forecast for Non-Scheduled Flight

DCWIS & PWD sensor installled at RWY 05 on 06 Apr 2024., DWR Remote Display, GETAC Portable Digital Barometer, Digital Standard Barometer

H24

AVBL

Dimapur/VEMR

Hourly + Half hourly during HO

METAR ,

SPECI

TREND

FORECAST,

AERODROME

WARNING

DCWIS & PWD22 (FSM) at RWY 12

HJ

AVBL

Diu/VADU

Hourly/Half hourly

during HO

METAR/TREND

1 DCWIS with FSM for RVR at RWY23 and 1 HAWOS near wind sock adjacent to the mid of runway

HS

AVBL

Donyi Polo Airport, Hollongi/VEHO

Half Hourly routine plus special observation/Automatic:NIL

METAR/TREND

DCWIS & DRISHTI RVR at RWY 26

HO

Not Available

Durgapur/VEDG

Half hourly during HO/ SPECI FOR SIGNIFICANT CHANGES

METAR/TREND/Aerodrome Warning in consultation with AMO Kolkata/SPECI

"DIWE at ATC TWR, AWOS (vaisala) at RWY 16( consists of temperature,humidity, wind & pressure sensors) Vaisala Transmissometer & Ceilometers at RWY 16,

1 Set of Getac DPI, anemometer, Psychrometer, AWS(IMD) & ORG (IMD) working.

HO

AVBL

Fursatganj/VERB

Hourly routine observations during HO and special observation if required /Automatic :NIL

METAR/ SPECI

Local Area Forecast, Aerodrome

Warning provided by AMO Lucknow

1 DCWIS and 1 FSM at RWY27

SS

HO

AVBL

Gaya/VEGY

Hourly + Half hourly during HO/ extension/early watch hour

METAR/TREND

DCWIS at RWY 28 TDZ and

FSM at RWY28 TDZ

HO

AVBL

Goa/Mopa/

VOGA

Half hourly routine plus special observations/Automatic NIL

METAR/TREND

DCWIS at RWY28 and RWY10

FSM at RWY28, RWY10

H24

Not AVBL

Gondia/VAGD

Half hourly during HO

METAR/TREND

DCWIS and FSM at RWY04

HO

Not AVBL

Guwahati/VEGT

Half hourly routine plus special

METAR (MET REPORT), SPECI (SPECIAL),TREND

FORECAST, TAF,

TAKE OFF,

LOCAL & AREA

FORECAST,

AERODROME

WARNING, LIGHT

AIRCRAFT

WARNING

DCWIS at RWY 02 & 20; Additional DRISHTI RVR at RWY02 & PWD22 (FSM) at

RWY 20. LASER CEILOMETER at RWY 02. PWD22 at RWY 02 installed on 01st March 2024

H24

AVBL

Hisar/VIHR

Half hourly, routine plus special

METAR/SPECI

RVR, Wind Sensor, Temperature Sensor, Pressure Sensor

HO as per Watch Hours

Not Available

Hubballi/VOHB

Hourly + Half hourly during HO

MET REPORT, SPECIAL REPORT

DCWIS, RVR PWD 22 Sensors

at RWY 26

HJ

Not Available

Hyderabad/VOHY

Hourly + Half hourly during HO

METAR/TREND

DCWIS- at RWY27

HJ

Available

Imphal/VEIM

Hourly + Half hourly during HO

METAR/TREND

DIWE at ATC

TWR, DCWIS & PWD22 at RWY04

HO

AVBL

Indore /VAID

Half hourly

METAR/TREND

DCWIS and FSM RVR at RWY 07.

H24

Available

Jabalpur/VAJB

HALF Hourly HS

METAR/TREND

DIWE at ATC TWR

VAISALA Barometer at MET OFFICE, Whriling pchrometer and GTAC Barometer at TMO SEAT

HS

AVBL

Jagdalpur/VEJR

Half hourly routine observation during HO and special observation if required

METAR/SPECI, TREND

S.S.

(2 THERMO-METER),WINDVANE,ANEMOMETER,

DRUCK DIGITAL BAROMETER, DIWE

HO

Not Available

Jaipur /VIJP

Half hourly routine observation and special observation if required

METAR/

TREND/TAF,

TAKE OFF,

LOCAL & AREA

FORECAST,

AERODROME

WARNING

Transmissometer at RWY08, MID, RWY26. DCWIS at RWY RWY26 PWD at RWY 08, RWY 26,

RWY 26M. AWOS AT RWY08, MID, RWY26.

H24

AVBL

Jalgaon/VAJL

Hourly + Half hourly

during HO

METAR

DCWIS with RVR PWD 22 Sensor (FSM) at RWY 27

HO

NIL

Jamshedpur /VEJS

Hourly + Half hourly during HO

METAR

1 DCWIS at RWY26 Transmissometer at RWY26 MID

H24

Nil

Jeypore/VEJP

Half hourly during HO

METAR

Digital Barometer AT/RH Sensor Hand Held Wind Vane and Anemometer at

ATC Tower, DIWE at ATC

Tower, ORG and Measuring

Glass

whirling psychrometer,Travelling Standard Kit( temperature sensor, RH sensor, pressure sensor,wind sensor)

HO

NIL

Jindal Vijaynagar/ VOJV

Hourly + Half hourly

during HS routine plus special.

METAR / SPECI / AERODROME WARNINGS IN CONSULTATION WITH AMO BNG, TAF AND LOCAL AREA FORECAST BY AMO BNG

GETAC PORTABLE DIGITAL BAROMETER and Visala PDB, Whriling Psychromerter , Hand held anemometer for wind speed , Windsock (All Manual observations, Automatic instruments not installed )

HJ

Not Available

Jharsuguda/VEJH

Half hourly

METAR

DCWIS AT RWY24 PWD22 FSM DIWE AT ATC DIGITAL BAROMETER

As per ATC Watch hours

Nil

Juhu (Mumbai)/ VAJJ

Half hourly routine plus special

METAR/ SPECI /

TREND/

AERODROME

WARNING

DCWIS AT RWY - 08 and 26, FSM AT RWY - 08

HJ

Nil

Kadapa/VOCP

Half hourly routine

plus special

observations during HO/

automatic: NIL

METAR/SPECI/TREND. AERODROME

WARNINGS IN

CONSULTATION

WITH AMO, TAF

AND LOCAL AREA FORECAST BY AMO

DCWIS at RWY11

FSM at RWY11

HO

AVBL

Kalburagi/VOGB

Half hourly routine plus special

METAR /

SPECI

AERODROME

WARNING

DCWIS, PWD RVR sensor at

RWY 09

HO

Nil

Kandla/VAKE

Half Hourly

METAR

DIWE (WIND SENSOR) & Getac BAROMETER

A/R

AVBL

Kangra (Gaggal)/VIGG

Half hourly during HO

METAR/MET REPORT/SPECIAL REPORT, TAF , Local Area Forcast, Aerodrome Warning

DIWE at ATC TWR

HJ

AVBL

Kannur/VOKN

Half hourly routine and special, no automatic observation

METAR/SPECIAL/ TREND FORECAST

DRISHTI RVR SYSTEM AT

RWY 25 AND PC BASED

DCWIS 07 & 25.

FSM TYPE RVR INSTRUMENT AT 07 & 25

H24

NIL

Keshod /VAKS

Half Hourly

METAR

One anemometer one wind vane four thermometers ( i.e max.min. dry and wet bulb) and one org installed. DCWIS is INSTALLED and operational from 25/05/2024 .

A/R & HS

Nil

Khajuraho/VEKO

Half hourly routine plus special

METAR/SPECI

/TREND

DCWIS ALONG WITH FSM INSTALLED AT RWY 19

As per Watch Hours

AVBL

Kishangarh/VIKG

Half hourly

METAR/TREND

DCWIS ALONG WITH RVR PWD INSTALLED AT RWY 23

HO

Nil

Kolhapur/VAKP

Half hourly

METAR/SPECI/TREND

1 DCWIS at RWY07

HO

Nil

Kolkata/VECC

Half hourly

METAR (MET

REPORT),

SPECI

(SPECIAL),TREND

FORECAST, TAF,

SIGMET, TAKE OFF,

LOCAL & AREA

FORECAST,

AERODROME

WARNING, LIGHT

AIRCRAFT

WARNING, FOG FORECAST

Transmissometers (VAISALA) at: RWY 19L TDZ, RWY 19L MID, RWY 01R TDZ.

Transmissometers

(DRISHTI) at:

RWY 01R END, RWY 01R MID, RWY 19R TDZ.

FSM type PWD

Sensor (VAISALA) at

RWY 01R TDZ,

RWY 01R MID,

RWY 01R END,

RWY 19L TDZ,

RWY 19L MID,

RWY 19R TDZ.

Ceilometer at:

RWY 01R END

DCWIS at:

RWY 01R TDZ.

RWY 19L TDZ.

Automated Weather Observing System (AWOS) [VAISALA]:

RWY 01R TDZ, (Ceilometer, Digital Barometer, WD/WS, Transmissometer, AT/RH)

RWY 01R MID, (WD/WS, Transmissometer)

RWY 01R END, (Ceilometer, Digital Barometer, WD/WS, Transmissometer, AT/RH)

RWY 19L TDZ, (Digital Barometer, WD/WS, Transmissometer, AT/RH

H24

Available

RWY 19L MID, (WD/WS, Transmissometer)

RWY 19R TDZ. (Digital Barometer, WD/WS,

Transmissometer, AT/RH).

Kota/VIKO

Hourly + Half hourly HO

METAR

SS, Surface Instrument, Digital Barometer

HJ

AVBL

Kullu Manali (Bhuntar)/

VIBR

Hourly/ Half Hourly HO HO routine plus special

METAR/SPECIAL REPORT

DIWE at ATC

TWR

HJ

AVBL

Kurnool/VOKU

Half hourly during HO routine plus special

METAR/SPECI/TREND. AERODROME WARNINGS IN CONSULTATION WITH AMO, TAF AND LOCAL AREA FORECAST BY AMO

DCWIS at RWY28

HO

Nil

Kushinagar/VEKI

Hourly + Half hourly during HO and special observation if required

METAR/SPECI/ TREND

AERODROME WARNINGS IN CONSULTATION WITH AMO LUCKNOW, TAF AND LOCAL AREA FORECAST BY AMO LUCKNOW

DCWISand Forward Scatter Meter(FSM) for RVR at RWY29

HJ

Nil

Lengpui (Aizwal)/ VELP

Hourly + Half hourly during HO special observation if required

METAR/SPECI/TREND

HAWOS, DCWIS at RWY17 &

DIWE at ATC

TWR..PWD SENSORS INSTALLATION AT RUNWAY NUMBER -17

HO

NOT AVBL

Lilabari (North Lakhimpur) /VELR

Hourly + Half hourly during HO

METAR SPECIAL REPORT

DCWIS with PWD22 (FSM) at RWY 04

HJ

AVBL

Lucknow/VILK

Hourly + Half hourly during HOHO routine plus special

METAR/TREND

METAR (MET

REPORT),

SPECI

(SPECIAL),TREND

FORECAST, TAF,

TAKE OFF,

LOCAL AREA

FORECAST,

AERODROME

WARNING, LIGHT

AIRCRAFT

WARNING AND FOG FORECAST

DCWIS at RWR09,RWY27;

Transmissometer at RWY27, MID, RWY09

3 FSM at RWY27, MID,

RWY09

DCWIS Installed at RWR-27.

DCWIS FSM are Installed at RWY27 & RWY-MID; Drishti Transmissometers are installed at RWY27, MID & RWY-09; AWOS Transmissometer along with FSM are installed at RWY-27 ,RWY-09 & Mid; LASER Ceilometer is installed at RWY-27; AWOS PWD are installed at RWY-27 & RWY-09

H24

Available

Ludhiana/VILD

Hourly + Half hourly

during HO

during HO routine plus special

METAR

METAR/Met Reports /Special Reports/Additional Reports

DIWE at ATC TWR

HJ

AVBL

Madurai/VOMD

Hourly + Half hourly routine plus special observations during HO

METAR/ MET

REPORT/SPECIAL/

TREND/AD WRNGS

DCWIS at RWY 09 and 27, FSM installed at RWY 27.

H24

AVBL

Mangaluru/ VOMLMoradabad/VIMB

Half hourly

Hourly METAR, Half hourly METAR during watch hour And SPECI ( using DCWIS Instrument Only )

METAR ,MET

REPORT, SPECIAL,

ADDITIONAL,

TREND

FORECAST, (TAF,

LOCAL AREA

FORECAST,

AERODROME

WARNING & LIGHT

AIRCRAFT

WARNING ISSUED FROM AMO BIAL FOR VOML)

METAR (MET REPORT) /SPECI (SPECIAL REPORT)

DCWIS,

Integrated AWOS, Dhristi

Transmissometer and Laser

Ceilometer at RWY24.DCWIS AT RWY12

H24

0800HRS to 1600 HRS

NOT AVBL

Mumbai/VABB

Mangaluru/ VOML

Half hourly routine

plus special

Half hourlyobservations

METAR (MET,MET

REPORT), SPECI

(SPECIAL),TREND

REPORT, SPECIAL,

ADDITIONAL,

TREND

FORECAST, (TAF,

TAKE OFF, OR LOCAL AREA

FORECAST,

AERODROME

WARNING, LIGHT

AIRCRAFT

WARNING, SIGMET

WARNING & LIGHT

AIRCRAFT

WARNING ISSUED FROM AMO BIAL FOR VOML)

TELVENT SYSTEM AT RWY27 DRISHTI

TRANSMISSOMETER AT

RWY - 09, 14, 27 DCWIS SYSTEM AT RWY - 09, 14, 27, 32 LASER CEILOMETER AT RWY - 32 FSM AT RWY -32

RWY24TDZ:

DRISHTI Transmissometer for RVR , AWOS, DCWIS METLOG-04 for Current Weather Data and LASER Ceilometer for Cloud Ceiling Data at RWY24 TDZ

RWY24 MID:

Forward Scatter Meter(FSM) for RVR at RWY24 MID

RWY24 END:.

H24

AvailableAVBL

MysuruMumbai/VOMYVABB

Hourly + Half hourly

during HO

Half hourly routine plus special

METAR (MET

REPORT), SPECI

(SPECIAL),TREND

FORECAST, TAF,

TAKE OFF, LOCAL AREA

FORECAST,

AERODROME

WARNING, LIGHT

METARAIRCRAFT

WARNING, SIGMET

DIWE at ATC TWR CWIS at RWY09

TELVENT SYSTEM AT RWY-27 U/S AND IS UNDER DECOMMISSING PROCESS . DRISHTI TRANSMISSOMETER AT RWY - 09, 14, 27 DCWIS SYSTEM AT RWY - 09, 14, 27, 32 LASER CEILOMETER AT RWY - 32 Forward Scattermeter(FSM) AT RWY -32 AWOS is commissioned on 01/07/2025. AWOS is installed at Runway 27,14,09,32 with transmissometer at Runway 27,14,09and 32, Ceilometer at Runway 27 and 14. at MID 09-27 and MID 14-32 Wind vane and wind anemometer is installed.

A/RH24

NilAvailable

NagpurMysuru/VANPVOMY

Hourly + Half hourly

during HO

METAR/ SPECI

(SPECIAL),TREND

FORECAST, TAF,

TAKE OFF,

LOCAL & AREA

FORECAST,

AERODROME

WARNING, LIGHT

AIRCRAFT

WARNING, ROUTE

FORECAST FOR

NON-SCHEDULED

FLIGHTMETAR

CWIS at RWY 32, DCWIS at RWY14 DIWE at

ATC Tower

DIWE at ATC TWR CWIS at RWY09

H24

A/R

AvailableAVBL

Nanded/VOND

Half Hourly

METAR

DCWIS at RWY 28

A/R

Nil

PakyongNavi Mumbai/VEPYVANM

Half Hourly/ Half Hourly during HO

METAR/TREND

METAR (MET REPORT) /SPECI (SPECIAL REPORT), TREND FORECAST

HAWOS, DCWIS AT RWY02

FSM at RWY 02

DCWIS at RWY 26 and RWY08,

HSH24

Nil

0700 to 2100 H

Pantnagar Noida/VIPTVIND

Hourly/ Half Hourly during HO

METAR

METAR (MET REPORT)

DCWIS and FSM at RWY28 and RWY10, FSM at RWY28 (Mid)

A/R

NOT AVBL

Passighat/VEPG

Hourly

Synoptic observations

Observations

HJ

NIL

Patna/VEPT

Half hourly

Half Hourly routine plus special

METAR (MET

REPORT),SPECI

(SPECIAL),TREND

FORECAST, TAF,

TAKE OFF,

LOCAL & AREA

FORECAST,

AERODROME

WARNING, LIGHT

AIRCRAFT

WARNING

DCWIS at RWY 25 TDZ, RWY 07 TDZ, FSM at RWAY 25 TDZ,

RWY 07 TDZ,

Transmissometer at RWAY 25

TDZ.

DCWIS at RWY25 & RWY07, AWOS at RWY25, RWY mid point & RWY07, FSM at RWY25 & RWY07 and DRISHTI at RWY25.

H24

Available

Pithoragarh/VIPG

Half hourly During HO

Routine observations Half Hourly/Hourly during HO and Special observations if required.

METAR/TRENDMETAR , SPECIAL

DIWE at ATC room and Met

room

DIWE WIND SENSOR

HOHS

Nil

Porbandar/VAPR

Hourly + Half hourly during HOHO routine plus special

METAR/SPECI/TREND

DIWE AT ATC TWR, DCWIS

AT RWY 27

HO (day and

alternate

Night)

A/R & HS

AVBL

PondicherryPuducherry/VOPC

Hourly + Half hourly during HO

METAR

Routine METAR (Met Report) and Special if needed

DIWE at new ATC building,

DCWIS with Ultrasonic wind sensor installed at new ATC building,

SS

HJ

Nil

Raipur/VERP

Hourly + Half hourly during HO

METAR/ TREND.

TAF, LOCAL & AREA FORECAST,

AERODROME

WARNING

DIWE at ATC TWR (DHRISTI

and FSM RVR Installation in

DCWIS WITH FSM at RWY24

Process DRISHTI at RWY24 END and

HJ

AVAILABLE

Rajahmundry/VORY

Half hourly during HOSPECIAL

METAR/SPECI/TREND. AERODROME

DCWIS and FSM/RVR at RWY23

DIWE at ATC TWR DCWIS at RWY23 RWY05

DIWE at ATC TWR DCWIS at RWY23

HO (day and

night)HO

AVBL

Rajkot(Hirasar)/

VAHS

Hourly + Half hourly during HO24 HOURS

METAR/MET

REPORT/SPECIAL/

ADDITIONAL/TREND

METAR/MET REPORT/ SPECIAL/ ADDITIONAL/LONG TAF BY AMO/SHORT TAF BY AMO/TREND/LOCAL AREA FORECAST BY AMO AHM/AERODROME WARNNING BY AMO AHM

DCWIS WITH FSM at RWY23

HOH24

NIL

Ranchi/ VERC

Hourly + Half hourly during HO

METAR/MET

REPORT/TREND.

AERODROME

WARNINGS IN

CONSULTATION

WITH AMOAMO PTN, TAF &

ARFOR BY AMO

ARF OR ISSUED BY BY AMO PTN

DCWIS feed at ATC TWR, FSM at RWY31, MID & RWY13 DCWIS at RWY31 RWY13

HO &HS

AVBL

Rohini Heliport

Rewa/VERW

Hourly + Half hourly during HO.

METAR

METAR/SPECI/TREND. AERODROME WARNINGS IN CONSULTATION WITH AMO, TAF AND LOCAL AREA FORECAST BY AMO

HAWOS, CWIS near HELIPAD

S.S.(4 THERMOMETER),WINDVANE, ANEMOMETER,VAISALA DIGITAL STANDARD BAROMETER

HJHO

NilNIL

Rourkela/VERKRohini Heliport

Hourly + Half hourly during HO

METAR

METAR and Special if needed.

DCWIS at RWY 27,DIWE at ATC TOWER,GETAC

DRUCK, TRAVELLING STANDARD KIT, PORTABLE

INSTRUMENT KIT

HAWOS,

DCWIS near RWY12

HSHJ

Nil

Rupsi/VERU

Half hourly during HO

METAR/ TREND

DCWIS & PWD22 (FSM) at RWY 23

HO

Nil

Safdarjung (Delhi)/

VIDD

Hourly + Half hourly during HOHO

routine plus special observations

METAR/TREND

DIWE at ATC TWR

HJ

Not Available

Salem/VOSM

Hourly +Half hourly

during HO

METAR/TREND

DCWIS & FSM at RWY 04

HJ

NilAvailablel

Shamshabad Satna/VOHSVEST

Half hourly

Half hourly during HO

METAR/TREND

DCWIS at RWY 09L, 27R, 09R, 27L

FSM- at RWY 09L, 27R, 09M, 09R, 27L

Drishti RVR at

RWY 09L, 27R

S.S.(4 THERMOMETER),WINDVANE, ANEMOMETER,VAISALA DIGITAL STANDARD BAROMETER

H24HO

Available (VOHY)Not available

ShirdiShamshabad /VASDVOHS

Half

Half hourly

METAR/TREND

FSM at RWY 27

DCWIS at RWY27 Frangible mast at RWY09. DCWIS at RWY 09. FSM at RWY 09

DCWIS at RWY 09L, 27R, 09R, 27L

FSM- at RWY 09L, 27R, 09M, 09R, 27L

Drishti RVR at RWY 09L, 27R. Automated Rainguage at RWY 09L AWOS AWS and RVR at RWY 09L, 27R, 09R, 27L , and celiometer at RWY 09L,27R, Wind sensors at RWY 09/27MID

H24

NILAvailable

ShimlaShirdi/VISMVASD

Hourly + Half hourly

Half

during HOhourly

METAR

METAR, SPECI, (AD WARNING, TAF by AMO MUMBAI)

DIWE FSM at ATC TowerRWY 27

DCWIS at RWY27 Frangible mast at RWY09. DCWIS at RWY 09. FSM at RWY 09

HJH24

NilNIL

Shivamogga / VOSH Shimla/VISM

Hourly + Half hourly

during HO

Half hourly during HO routine plus Special

METAR, ,MET REPORT,SPECIAL

DIWE at ATC Tower,

Observing system provided by OperatorSURFACE INSTRUMENT at RWY14

HOHJ

Nil

Sindhudurg/VOSRShivamogga / VOSH

Hourly + Half hourly during HO routine plus special

METAR MET

REPORT SPECIAL

ADDITIONAL

METAR, MET

REPORT, SPECI,

SPECIAL,

AERODROME

TREND REMARKSWARNING

DCWIS at RWY 27

AWS VAISALA system provided by Operator KSIIDC

HO

Nil

Vijayawada/VOBZ

alf Hourly + Half hourly during HORoutine Plus Special Observations

METAR/SPECI/TREND. AERODROME

WARNINGS IN

CONSULTATION

WITH AMO, TAF

AND LOCAL AREA FORECAST BY AMO

DCWIS AT R08, R26 AND PWD SENSOR AT R08, R26

DCWIS PWD SENSOR,ULTRASONIC WIND SENSOR ,FSM at RWY 26 Only

HJ

AVBL

Abbreviation and Legend

ATC TWR

Air Traffic Control Tower

DIWE

Distance Indicating Wind Equipment (DIWE)

CWIS

Current Weather Instrument System (CWIS) (Temperature, Humidity, Wind & Pressure sensors)

DCWIS

Digital Current Weather Instruments System

FSM

Forward scatterometer-type RVR systems

IAAMS

Integrated Automated Aviation Meteorological System (CWIS + Transmissometer).

AWOS

Automatic Weather Observing System.

SS

Wind wane, Cup anemometer, Stevenson Screen

A/R

As & when required

AMO

Aerodrome Meteorological Office (Formerly Class I Met Office)

AMS

Aerodrome Meteorological Station (Formerly Class III Met Office)

HAWOS

Heliport Aviation Weather Observing Systems

HJ

Observation from sun-rise to sun-set

H24

Continuous day and night service

HO

Service available to meet operational requirements

HS

Service available during hours of scheduled service

METAR

Coded Meteorological current weather routine report (+ Local Met. Report in abbreviated plain language for local ATC / Area / Approach control as applicable)

TREND

Landing forecast appended to aviation weather reports (METAR and Local Met. Reports in abbreviated plain language for local ATC / Area / Approach control as applicable).

4

Types of services

4.1

Area Forecast

4.1.1

Under the World Area Forecast system, WAFC London is responsible for the supply of forecast data of upper winds, upper-air temperatures, direction, speed and height of maximum winds and tropopause heights and temperatures. The products are valid for 6, 12, 18, 24, 30 and 36 hours after the time of synoptic data (0000, 0600, 1200 and 1800 UTC) on which the forecasts are based. The grid point data for upper wind/temperature and geopotential height are available for FL 50 (850 hPa), FL 100 (700 hPa), FL 140 (600 hPa), FL 180 (500 hPa), FL 240 (400 hPa), FL 270 (350 hPa), FL 300 (300 hPa), FL 320 (275 hPa), FL340 (250 hPa), FL 360 (225 hPa), FL 390 (200 hPa) and FL 450 (150 hPa), FL530 (100 hPa). In addition, forecast Humidity for flight levels FL 50 (850 hPa), FL 100 (700 hPa), FL 140 (600 hPa) and FL 180 (500 hPa) are also available. The above data in chart form are made available through online aviation meteorological briefing system (OLBS) functioning at Chennai and New Delhi for the registered airline users through user name / password access and for those who are yet to register in hard copy form as part of chart form of documentation (CFD) briefing material.

4.1.2

Required data for the forecast of significant weather (SIGWX) phenomena are also provided by WAFC London, four times a day for fixed valid times of 0000, 0600, 1200 and 1800 UTC. These data are received through secured file transfer protocol (ftp) access by IMD, processed and the SIGWX charts for FL 100 - FL 250 and FL 250 - FL 630 are generated through OLBS in India for the documentation of international and domestic flights.

4.1.3

These charts are made available in OLBS for online self-briefing by pilots and flight despatchers and also disseminated through IMD’s communication channel to forecasting offices to meet the manual briefing requirements, if any.

5.1.4

In addition, national SIGWX charts and prognostic charts are also being prepared by the four Meteorological Watch Offices functioning at Chennai, Delhi, Kolkata and Mumbai for the documentation of national short-haul flights.

4.2

Route and Aerodrome Forecasts

4.2.1.

Route Forecast, terminal aerodrome forecast and local forecasts are issued by Aerodrome Meteorological Offices (Offices having forecasting facilities) for its own and its attached aeronautical meteorological stations (AMS). In addition, all Aerodrome Meteorological Offices (AMO) issue trend forecasts and some of the AMS also issue trend forecasts based on user requirements. All AMOs issue take-off forecast for its own as per user requirements. During the closed hours of watch of the offices with restricted forecasting hours, the necessary forecasts are issued by the meteorological offices at state/regional centres.

4.3.

Aerodrome Warning/Wind Shear Warnings

4.3.1

Aerodrome warnings are issued by AMOs functioning during the hours of forecasting watch and give concise information of meteorological condition, which could adversely affect aircraft on the ground, including parked aircraft and the aerodrome facilities and services. In cases of aerodromes with AMS, the associated AMO at the state centres or regional centres issue these warnings, if there is prior requisition

4.3.2.

These warnings are supplied to ATS units of Airports Authority of India for further dissemination over the aerodrome to operators and other agencies.

4.3.3.

Aerodrome warnings are issued for strong surface winds, tropical cyclones, thunderstorms, squall, dust storm/sand storm, hail, frost, snow, freezing precipitation etc. as recommended in ICAO Annex 3.

4.3.4.

In addition, warnings for gliders and light aircraft and helicopters are issued and appended to the Local forecast when the wind speed is expected to reach 17 knots or more.

5.

Briefing and Display

5.1

Briefing is provided through OLBS with user name and password access for the registered users. However, for those who do not have user name / password access, manual briefing is provided. In all AMOs briefing is available to the pilots and/ or flight operations personnel about the prevailing and anticipated weather conditions. Latest surface and upper-air synoptic charts, meteorological reports, and forecasts of destination and its alternate(s), SIGMET information, AIREP, prognostic charts, ground based weather radar information and satellite cloud imagery are readily available in PC monitors for consultation and briefing. In addition, hard copy form is supplied as part of briefing material based on the user requirements. Depending on the weather situation, the meteorological officer may insist that the pilot in command of a flight be present personally for briefing. Briefing is also provided at AMS (where forecasting facility is not available) after obtaining the same from its associated AMO.

6.

Documentation

6.1

Documentation consists of -

6.1.1

Flight forecast in tabular form/ pictorial cross-sectional form/ charts form / a single vertical cross section chart form covering various levels for the selected route.

6.1.2

Terminal aerodrome forecasts of destination and alternate aerodrome.

6.1.3

Take-off and ascent/descent data (wherever necessary) are provided to flights taking off from airports within the country.

6.2

The chart form of forecast for domestic short-haul flights consists of prognostic SIGWX charts for medium level (FL 100 - FL 250) and high level (FL 250 - FL 630) and prognostic upper wind and temperature charts for the levels mentioned at 6.1.1 above for both international and domestic flights. The Chart form of documentation (CFD) is prepared at MWO, Chennai and Delhi using the gridded binary (GRIB1) data obtained through secured ftp access from WAFC, London and the same are made available for briefing at all AMOs and AMSs concerned. Forecasts are normally given up to the next halt where a meteorological forecasting office exists, when the duration of the halt is more than seventy-five minutes. Through online access, the users have the privilege to select and choose the forecast requirements covering the endurance and return flight requirements subject to the halt duration at destination and procedural requirements of briefing at destination as per prevailing norms.

6.3

Return forecasts are provided for flights when the halt at the destination is less than 75 minutes and there is no change of crew. If sufficient notice is given, arrangements are also made to provide documentation even at airports without meteorological forecasting facility. If planned halt(s) at intermediate airports are for long periods, a decision whether fresh forecasts will be required at intermediate halt(s), will have to be taken by mutual consultation between the pilot and the meteorological office at the original departure aerodrome taking into consideration the expected weather developments.

6.4

A fresh forecast has to be obtained at intermediate halts when the period of validity of the route and/or aerodrome forecasts supplied has elapsed or is expected to elapse before the completion of the flights due to changes in the original plan. In such cases, the operator has to make arrangements to obtain fresh forecast from the Aviation Meteorological Office at the original departure aerodrome or from the nearest Aviation Meteorological Office. The responsibility for the collection and transmission of the forecasts to the pilot at intermediate halts rests with the operator.

7.

In-flight services

7.1.

SIGMET: Significant Meteorological Information pertaining to the FIRs are issued by the Meteorological Watch Office (MWO) functioning at Chennai, Delhi, Kolkata & Mumbai and are known as SIGMET. These are supplied to the ATS units at the Flight Information Center (FIC) and Area Control Center (ACC) for the transmission to aircraft in flight (Refer Para 11)

7.2.

VOLMET BROADCASTS: Current Weather Reports and Aerodrome Forecasts and SIGMETs of certain stations are broadcast on HF from Kolkata and Mumbai at half hourly intervals. Details of these broadcast are given in Para 11.

7.3.

ATIS BROADCAST: Latest Weather Report of the airport, together with trend forecast valid for the next 2 hours, is included in the Automatic Terminal Information Service (ATIS) broadcast from Chennai, Delhi, Kolkata & Mumbai.

8.

Meteorological Reports

8.1

Observations are recorded at HH+00 and HH+30 for the issue of METARs.

8.2

Local SPECIAL as per ICAO Annex 3 criteria and ADDITIONAL reports based on regional practice and requirements are prepared whenever warranted, throughout the hours of watch.

9

Notification required from operators

9.1

Notification from operators for flight documentation and other meteorological service or for a change in the existing requirements should be received by the concerned Meteorological Office(s) sufficiently in advance. Normally the minimum notice required for non-scheduled flights are as follows:

For National & international flights

At AMOs

(offices having forecasting facilities)

3 hours before ETD

At AMS

(offices without forecasting facilities)

At least 3 hours during watch (OR) 18 to 24 hours before ETD

10

Aircraft Reports

10.1

Routine air reports at the following designated MET reporting points (as given on para 10.4 & 10.5) shall be made by all aircraft.

10.2

Special observations shall be made whenever the following weather phenomenon are encountered or observed -

i) severe turbulence; or

ii) severe icing; or

iii) severe mountain wave; or

iv) thunderstorm without hail, that are obscured, embedded, widespread or in squall lines; or

v) thunderstorm with hail, that are obscured, embedded, widespread or in squall lines; or

vi) heavy dust storm or heavy sandstorm; or

vii) volcanic ash cloud; or

viii) pre-eruption activity or a volcanic eruption

10.3

The meteorological office shall make arrangements with the appropriate ATS unit to ensure that -

i) Routine and special air-reports by voice communications, the ATS units relay them without delay to their associated meteorological watch office

ii) Routine air-reports by data-link communications, the ATS units relay them without delay to WAFCs; and

iii) Special air-reports by data-link communications, the ATS units relay them without delay to their associated meteorological watch office and WAFCs.

10.4

Meteorological reporting points on National ATS routes

Kolkata - Chennai

SANON

Kolkata - Port Blair

Crossing G472

Delhi - Kolkata

KUSMI

Delhi - Chennai

BHOPAL & GULBARGA

Delhi - Hyderabad - Bengaluru

BHOPAL

Delhi - Srinagar

PATHANKOT

Mumbai - Chennai

BELLARY

Mumbai - Cochin

DABOLIM/GOA

Mumbai - Delhi

PRATAPGARH

Mumbai - Kolkata

AURANGABAD & NIPAD

Mumbai - Thiruvananthapuram

DABOLIM/GOA

10.5

Meteorological reporting points on International ATS routes

A456

Delhi

RABAN

A462

Kolkata

BEMAK

A466, L509, M890

Delhi

SULOM

A474

Mumbai

MURUS

A474, G465

Mumbai

GOSGU

A599

Kolkata

CHILA

A791, G208, G451, N895

Mumbai

SASRO

A325

Delhi

TASOP

A474, A791, L518, N877, A325

Mumbai

PRATAPGARH (PRA VOR)

B459, L756

Mumbai

CLAVA

B459

Mumbai

ATEMA

B459, L516

Mumbai

UGPEG

B466

Chennai

ANOKO

B466

Chennai

APASI

B466

Chennai

AVNOS

B211

Chennai

BELLARY (BBI VOR)

G210, G472, N893

Mumbai

VASLA

G424, L875

Mumbai

VUTAS

G424, G450, L516

Mumbai

UNRIV

G450

Kolkata

NIPAD

G450

Mumbai

ORLID

G333, G452, L333

Delhi

MERUN

G465, L516

Mumbai

ELKEL

G472, N895

Kolkata

SAGOD

G472, M770, M773, N895

Kolkata

BUBKO

L301

Kolkata

RINDA

L301

Mumbai

RASKI

L516, L894, P570

Mumbai

KITAL

G450, L894, P323, UM551, UL425

Mumbai

DONSA

A474, L894

Mumbai

ESMIT

M770

Kolkata

MEPEL

N563

Chennai

MEMAK

P628

Chennai

IGREX

P751, UM551

Mumbai

ANGAL

M300, P751

Mumbai

LEMAX

P762

Chennai

LULDA

G590, P646, R460

Kolkata

VARANASI (BBN VOR)

R472

Kolkata

ATOGA

11

VOLMET service

Mumbai

Mumbai

Radio

(A3J)

11387

H+25

to

H+30

0300

to

1300

Mumbai, Chennai

SIGMET

6676

H24

Mumbai, Colombo, Chennai, Karachi,

Male, Ahmedabad

METAR

SPECI

TREND

2965

H+55

to

H+60

1300

to

0300

Mumbai, Colombo,

Male

TAF

Kolkata

Kolkata

Radio

(A3J)

11387

6676

H-05

to

H+10

0300

to

1300

Kolkata, Delhi

SIGMET

Kolkata, Delhi,

Dhaka, Yangon,

Katmandu

METAR

SPECI

TREND

2965

H+35

to

H+40

1300

to

0300

Kolkata, Delhi,

Ho-Chi-Minh

TAF

12

SIGMET Service

Chennai VOMM

H24

Chennai FIR

4 hour

FIC/ACC

Delhi VIDP

H24

Delhi FIR

4 hour

FIC/ACC

Kolkata VECC

H24

Kolkata FIR

4 hour

FIC/ACC

Mumbai VABB

H24

Mumbai FIR

4 hour

FIC/ACC

13

Other Automated Meteorological Services

Online Aviation Meteorological Briefing System (OLBS) is functioning from MWO, Chennai and Delhi. It provides through username / password access to the registered users of airlines to avail all types of briefing material, including current weather reports, SIGMET warnings, tropical cyclone and volcanic ash advisory bulletin issued by the designated centres (of ICAO) for international /domestic flight planning purposes.