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METAR indicates that the following is a standard hourly observation. LBBG is the ICAO airport code for Burgas Airport. 041600Z indicates the time of the observation. It is the day of the month (04) followed by the time of day (1600 Zulu time, which equals 4:00 pm Greenwich Mean Time or 6:00 pm local time).
0518/0624 indicates that the report is valid from the 5th at 1800 UTC until the 6th at 2400 UTC. The remainder of the first line contain the initial forecast conditions. Variations of the codes used for various weather conditions are many. [6] 31008KT indicates that the wind will be from 310° true at 8 knots (9 mph; 4 m/s).
AIRMET SIERRA (Mountain obscuration or IFR) ceilings less than 1000 feet and/or visibility less than 3 miles affecting over 50% of the area at one time; extensive mountain obscuration AIRMET TANGO (Turbulence) moderate turbulence, sustained surface winds of 30 knots or greater, and/or non convective low−level wind shear.
Automatic terminal information service, or ATIS, is a continuous broadcast of recorded aeronautical information in busier terminal areas.ATIS broadcasts contain essential information, such as current weather information, active runways, available approaches, and any other information required by the pilots, such as important NOTAMs.
ASOS sensors, located at Salinas, California. Surface weather observations have traditionally been taken at airports due to safety concerns during takeoffs and landings. The ICAO defines the International Standard Atmosphere (also known as ICAO Standard Atmosphere), which is the model of the standard variation of pressure, temperature, density, and viscosity with elevation/altitude in the ...
Any significant variation at this mean wind during the ten minutes preceding the observation are noted as gusts in messages such as METAR. [ 3 ] It is generally reported in METAR when the peak wind speed reaches at least 16 knots (30 km/h; 18 mph) and the variation in wind speed between the peaks and average wind is at least 9 to 10 knots (17 ...
This is a code number from 0 to 4, with 0, 1 and 2 meaning data is included, and 3 and 4 indicating no precipitation data. i X is a code number indicating the manner of station operation, and the format used in group 7wwWW ; codes 1, 2 and 3 indicate a manned station, while codes 4 to 7 indicate an automatic station.
It is reported within surface weather observations and METAR code either in meters or statute miles, depending upon the country. Visibility affects all forms of traffic: roads, railways, sailing and aviation. The geometric range of vision is limited by the curvature of the Earth and