SS
DS
1-2 oktas
Few
3-4 oktas
SCT
BKN
5-7 Oktas
OVC
8 oktas
NSC
NCD
CAVOK requierements
Visibility: 9999
NSC
No CB or TCu anywhere
No significant weather
WS
Windshear
NOSIG
No significant changes expected
BECMG
Becoming
TEMPO
Temporary
FM
From
TL
Until
AT
at
TX12/0113Z
Max temp 12°C on the 01st at 1300 Zulu
TNM12/0201
Min Temp minus 12°C on the 2nd at 0100 Zulu
PROB30
Probability 30%
VRB
Variable
R28L/0300 U D N
RVR for Rnwy 28 left: 300m plus minus neutral
Requirements for RVR
RVR smaller than 1500m
Visibility smaller than 1500m