What do the METAR and Taf codes mean?
The Aircrew Quick Reference Guide to the METAR and TAF Codes is designed to help aircrews quickly and clearly translate METAR and TAF codes into plain language. See references in Attachment 1 for a listing of source documents. METAR codes report observed weather conditions by airfield; TAF codes report forecasted weather conditions by airfield.
What is a terminal aerodrome forecast ( TAF ) decoder?
TAF Decoder. A Terminal Aerodrome Forecast (TAF) is a concise statement of the expected meteorological conditions at an airport during a specified period (usually 24 hours). Each ICAO state may modify the code as needed.
When to report wind variability in METAR code?
A wind variability group will be reported if the wind is variable by 60 degrees or more and the speed is greater than 6 knots. This remark will contain the extremes of the wind directions, separated by “V.” In this example, 210V290are reads, “wind direction varying between 210 and 290.” 7 METAR Wind Variability
How to decode an ASOS METAR observation?
KEY TO DECODE AN ASOS (METAR) OBSERVATION METAR KABC 121755Z AUTO 21016G24KT 180V240 1SM R11/P6000FT – RA BR BKN015 OVC025 06/04 A2990 RMK AO2 PK WND 20032/25 WSHFT 1715 VIS 3/4V1 1/2 VIS 3/4 RWY11 RAB07 CIG 013V017 CIG 017 RWY11 PRESFR SLP125 P0003 600 09 T00640036 10066 21012 58033 TSNO $ TYPE OF REPORT
Which is the best weather station for TAF?
TAF: LLBG 111702Z 1118/1218 36006KT CAVOK TEMPO 1200/1206 VRB03KT 9999 SCT020 BECMG 1207/1209 31010KT BECMG 1215/1217 01006KT TX32/1211Z TN18/1203Z Weather observations and forecasts of more than 4000 airports (METAR and TAF reports). The available stations are represented by yellow and red dots on the map.
What is the visibility of the METAR code?
METAR EDDF 071320Z 22008KT 9999 SCT036 SCT090 BKN280 19/10 Q1011 NOSIG At overseas locations, visibility is reported in meters, and SM is omitted. The largest reportable metric value is 9999. This value represents a visibility greater than 9000 meters (7 SM or more).
What does METAR stand for in aviation category?
METAR (Aviation Routine Weather Report) refers to a scheduled observation taken between 55-59 minutes past the hour (also referred to as a routine hourly observation).
What is the station identifier on a METAR report?
Station identifier (KLAX) The next part of a METAR report identified the station from which the report has been issued. In our example, the report has been transmitted by the Los Angeles International Airport as indicated by the KLAX code.
What does Taf stand for in aviation category?
It is released according to a regular schedule unless sudden or exceptional weather changes occur. TAF stands for Terminal Aerodrome Forecast. It is a report released by large airports that summarizes the weather forecast for the area covered by five statute miles from the location of the airport.
How often does an airport Taf report come out?
TAF stands for Terminal Aerodrome Forecast. It is a report released by large airports that summarizes the weather forecast for the area covered by five statute miles from the location of the airport. A TAF report is valid for 24 to 30-hour time periods and is typically updated four times a day.
What does becmg stand for in METAR message?
– BECMG = Becoming (used where changes are expected to reach or pass through specified values · Forecast Visibility (as item 5) (9999 indicates 10Kilometers vis or greater) An eight digit telegraphic code on runway conditions for some European airports may be included at the end of hourly METAR messages:
What does the number 9999 mean on METAR?
· Forecast Visibility (as item 5) (9999 indicates 10Kilometers vis or greater) An eight digit telegraphic code on runway conditions for some European airports may be included at the end of hourly METAR messages: The first two digits correspond to the runway designator.