| 'FM' indicates a worsening of conditions, while 'BECMG' indicates an improvement |
| 'FM' indicates a rapid and significant change at a specific time, while 'BECMG' indicates a gradual change over a period of about two hours |
| There is no difference; they are interchangeable terms |
| 'BECMG' is used only for fog, while 'FM' is used only for wind |
MENU
EN 
IT
ES
DE
FR
PL
CZ
RS
Exam Questions
Training Quiz
Exam simulation
PDF Exam
Contact Us
Prices
Are you a school?
App Mobile