The service provides the latest METAR reports in IWXXM for Lithuanian aerodromes in compliance with ICAO Annex 3, PANS-MET and EU Implementing Regulations. Retrieval is available via (1) an OGC API - Environmental Data Retrieval (EDR) endpoint and (2) subscription over AMQP 1.0 where the IWXXM payload and message headers conform to the EUROCONTROL SWIM Technical Infrastructure Yellow Profile (Messaging).
Categorisation
SERVICE_DESCRIPTION
OPERATIONAL
- AERODROME_OPERATION
- AIRSPACE_ORGANISATION_AND_MANAGEMENT
- INFORMATION_MANAGEMENT
- SERVICE_DELIVERY_MANAGEMENT
- AIR_TRAFFIC_SERVICE_PROVIDER
- AIRPORT_OPERATOR
- AIRSIDE_GROUND_HANDLER
- CIVIL_AIR_NAVIGATION_SERVICE_PROVIDER
- CIVIL_AIRSPACE_USER
- COMMUNICATION_NAVIGATION_AND_SURVEILLANCE_SERVICE_PROVIDER
- MILITARY_AIR_NAVIGATION_SERVICE_PROVIDER
- MILITARY_AIRSPACE_USER
- PROVIDER_OF_DATA_SERVICES
- REGULATED_METEOROLOGICAL_SERVICE_PROVIDER
- METEOROLOGICAL_INFORMATION_EXCHANGE
- REQUEST_REPLY
- PUBLISH_SUBSCRIBE_WITH_PUSH_MECHANISM
The dataset is valid for Lithuania (Vilnius FIR/EYVI).
Provider
2025-12-29
Lithuanian hydrometeorological service
Lithuanian hydrometeorological service under the Ministry of Environment (LHMS) is designated meteorological service provider for International Air Navigation within the Vilniaus Flight Information Region in accordance with ICAO Annex 3 and Commission Implementing Regulation (EU) No. 2017/373.
LHMS is responsible for:
provision of aerodrome forecasts and warnings
provision of SIGMET, AIRMET, special air-reports, area forecasts
provision of meteorological information to ATS and search and rescue units
provision of consultations to flight crew members and other flight operations personnel
provision and distribution of pre-flight meteorological information and flight documents
weather observing and reporting service at Vilnius, Kaunas, Palanga aerodromes
provision of aerodrome climatological information.
LHMS
Restricted
Restricted
Operational Needs
This service contributes to fulfilling operational needs as defined in Commission Implementing Regulation (EU) 2017/373 and ICAO Annex 3. It supports the EU Implementing Regulation 2021/116 - Common Project One.
Information Exchange Requirements
IER 1 - The information currently included in the METAR as defined in Commission Implementing Regulation (EU) 2017/373, ICAO Annex 3 Amendment 82, and PANS-MET.
Capabilities
The service provides high quality, up-to-date, trusted, regulated meteorological information in digital form for use by service consumers within the aviation domain.
Distribute Data
The service distributes the data according to the stored subscriptions and topics.
Information has been shared; the service consumer gets the requested data.
Request Data
The consumer can request data from the service using an OGC API - EDR endpoint.
Information has been shared; the service consumer gets the requested data.
Subscribe to Data
The user can receive data via AMQP 1.0. Messages follow the SWIM TI Yellow Profile (Messaging).
Subscription established; data is received upon publication.
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PerformanceActual pre-operational status.
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ReliabilityActual pre-operational status.
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SecuritySWIM TI Yellow Profile-compliant security controls (confidentiality, integrity, authentication).
General Terms and Conditions of Business
LEGAL_CONSTRAINT
Terms and conditions are provided by LHMS upon request.
Customization
SERVICE_POLICY
Within the given constraints, the user can customize the service to individual needs if applicable. LHMS provides the service delivery from beginning to end of the subscription. If no start time is given, the subscription starts immediately. If no end time is given, the subscription continues until the service is retired.
Information Retainment
SERVICE_CONSUMPTION_CONSTRAINT
According to ICAO Annex 3, meteorological information is retained for a period of at least 30 days from the date of issue.
Subscription
SERVICE_CONSUMPTION_CONSTRAINT
Consumers begin receiving data by connecting to the published endpoints with appropriate credentials; no explicit subscribe/unsubscribe API is provided.
Authentication and authorization
SECURITY_CONSTRAINT
Access is limited to authorized users per SWIM TI Yellow Profile.
Encryption
SECURITY_CONSTRAINT
Communication is encrypted per SWIM TI Yellow Profile.
Signature
SECURITY_CONSTRAINT
The requested information may contain a digital signature using SHA-256 or stronger.
SELF_VALIDATION
Service tested by LHMS
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AIRMATM Information Reference Model
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AMQPAdvanced Queueing Message Protocol (1.0) â per SWIM TI Yellow Profile Messaging
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ATCAir Traffic Control
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ATMAir Traffic Management
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LHMSLithuanian hydrometeorological service under the Ministry of Environment
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HTTPHypertext Transfer Protocol
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ICAOInternational Civil Aviation Organization
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IERInformation Exchange Requirement
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IRImplementation Rules
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ISRMInformation Service Reference Model
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IWXXMICAO Meteorological Information Exchange Model
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METARMeteorological Aerodrome Report
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NWSNational Weather Service
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OGCOpen Geospatial Consortium
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PCPPilot Common Project
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REQRequirement
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WMOWorld Meteorological Organization
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SIGMETSignificant meteorological phenomena
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TAFTerminal Aerodrome Forecast
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Filtering Capabilities (EDR)Filtering is exposed through OGC API - EDR query parameters and collections, including spatial, temporal, and parameter subsetting of IWXXM-derived attributes (e.g., aerodrome ICAO designator, observation/issue times).
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Filtering Capabilities (AMQP)Topic-based filtering is available through the brokerâs topic hierarchy. Private queues with provider-defined selectors consistent with SWIM TI Yellow Profile may be provisioned.
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The service provider ensures that the data offered within this service is created by LHMS, a REGULATED_METEOROLOGICAL_SERVICE_PROVIDER.
METAR (Meteorological Aerodrome Report)
A digital aeronautical meteorological observation for an aerodrome, encoded and exchanged using IWXXM.
AIRM 1.0.0 :: METAR â correspondence and mapping notes: https://airm.aero/developers/icao-wxxm-3.0.0-to-airm-1.0.0-index
IWXXM 3.x METAR
0..*
IWXXM version 2023-1 (https://schemas.wmo.int/iwxxm/2023-1/iwxxm.xsd). Payload is raw XML in AMQP messages and EDR responses; no size constraints.
/metar
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Topic StructureMessages are published under weather.aviation.{taf,metar,sigmet}. This covers all messages in the Lithuania FIR. AMQP 1.0 filters (e.g., ICAO location identifier) can be applied via message headers as defined by the message schema.
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Payload EncodingIWXXM content is carried as plain text XML (not gzipped).
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Flow Control and LimitsDefault link credit and connection limits are to be confirmed; values will be documented in narrative connection documentation when available.
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Typical Request/Reply BehaviourThe request is sent from the consumer to the EDR service, which processes the request and returns the METAR IWXXM payload. The service follows OGC API - EDR behaviour.
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Typical Data Distribution BehaviourThe service sends data to consumers when available and matching their connection parameters using AMQP 1.0 per SWIM TI Yellow Profile Messaging.
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LHMS IT components are monitored with 24/7 maintenance.
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EDR RequestThe interface is used to receive the data via OGC API - EDR.PROVIDER_SIDESYNCHRONOUS_REQUEST_RESPONSE
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EDR operationsStandard EDR retrieval operations (collection discovery, position/area/trajectory queries, temporal subsetting).gitMessages
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EDR RequestIN
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EDR ResponseOUT
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EndpointsRestricted
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SWIM_TI_YP_1_1_WS_LIGHTHTTP(S) REST binding per SWIM Technical Infrastructure Yellow Profile.
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IPV4_SECURE_UNICASTService supports IPv4 secure unicast and IPv6 secure unicast over TLS (mTLS per policy).
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EDR ResponseResponse payload structure and parameters are defined by the OpenAPI document.
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AMQP Push ServiceThe interface is used to receive published data via AMQP 1.0 per SWIM TI Yellow Profile Messaging.PROVIDER_SIDE
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dataDeliveryThe IWXXM payload is delivered directly in the AMQP message or via reference to an EDR resource.gitMessages
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dataDeliveryOUT
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EndpointsRestricted
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SWIM_TI_YP_1_1_AMQP_MESSAGINGBinding aligned with EUROCONTROL SWIM Technical Infrastructure Yellow Profile (Messaging).
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IPV4_SECURE_UNICASTService supports IPv4 secure unicast and IPv6 secure unicast over TLS (mTLS per policy).
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dataDeliveryAMQP message contract including headers/properties and IWXXM payload shape for METAR.
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Appendix A: ReferencesReference list for the service.POLICY_DOCUMENT-Reference
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https://swim-eurocontrol.atlassian.net/wiki/spaces/MSS/pages/60162182/IWXXM+METAR-SPECI+Subscription+and+Request+Service+-+Service+Definition#IWXXMMETAR-SPECISubscriptionandRequestService-ServiceDefinition-AppendixA
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Appendix B: Operational NeedsOperational needs supported by the service.POLICY_DOCUMENT-Reference
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https://swim-eurocontrol.atlassian.net/wiki/spaces/MSS/pages/60162182/IWXXM+METAR-SPECI+Subscription+and+Request+Service+-+Service+Definition#IWXXMMETAR-SPECISubscriptionandRequestService-ServiceDefinition-AppendixB
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Meteorological SWIM Services Subscription Interface StandardSubscription interface specification.OTHER-Reference
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https://swim-eurocontrol.atlassian.net/wiki/spaces/MSS/pages/60162052/Meteorological+SWIM+Services+Subscription+Interface+Standard
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OGC API - Environmental Data Retrieval (EDR)
SERVICE_STANDARD
is conformant
1.1.0
OGC API - Environmental Data Retrieval
EUROCONTROL SWIM Technical Infrastructure - Yellow Profile (Messaging, AMQP 1.0)
EUROCONTROL_SPECIFICATION_FOR_SWIM_TECHNICAL_INFRASTRUCTURE
is conformant
2.0
Advanced Message Queuing Protocol 1.0 per SWIM TI Yellow Profile