Page 263 - PPL-engelsk 2025
P. 263

Meteorology

                3.4.8.1     Wind speed and wind direction – given in METAR


                Wind  reported  in  METAR  (Meteorological  Aerodrome  Report  –  available  at

                www.northavimet.com) is the wind over the last 10 minutes, measured at 10

                meters above the ground.

                Wind direction in aviation is given as the average over the past 10 minutes and

                from the geographical direction the wind comes from. After the wind direction,

                the wind speed is provided.




                In aviation, the unit "Knots" (Kt) is used, which is nautical miles per hour.


                You  may  also  encounter  wind  speeds  reported  in  meters  per  second.  It’s

                important  that  you  can  convert  meters  per  second  to  Kt.  You  do  this  by

                multiplying meters per second by 2.

                   Example: If the wind is reported as 180/12, the wind is coming from the south,

                   and the wind speed is 12 Kt, which is 6 meters per second.





                Wind reported in METAR (a meteorological information about current weather)
                is the wind over the last 10 minutes, measured at 10 meters above the ground.





                Example:   METAR   ekka 060850z 07021kt

                This METAR from Karup (ekka) indicates that the wind:

                  -  Was on the 6th day of the month

                  -  At 08:50 UTC time

                  -  Came from 070 degrees

                  -  Speed was 21 knots.




                Example:   METAR   eksk 060850z auto vrb11g26kt


                This example from EKSK, measured automatically, indicates that the wind was
                variable in direction with a speed of 11 kt.


                "g26" means gusts up to 26 Kt.


           Flight Theory PPL(A)(UL)/LAPL             Henning Andersen, Midtjysk Flyveskole© 2025           263
   258   259   260   261   262   263   264   265   266   267   268