Here you go M E,
A [weather] section is :
[weather]
visibility.0=9828.03,0.00,802.20
visibility.1=1000.03,802.21,1821.20
vis_layers_num=2
cloud.0=9,300.44,450.40,0.00,6,0,0,1,91.14,4,0
cloud.1=9,502.40,750.60,0.00,7,0,0,1,91.14,4,0
cloud.2=8,802.40,1821.60,0.00,8,0,0,0,0.00,4,0
cloud_layers_num=3
temp_layers_num=0
wind_layers_num=0
wind_surface=3000.60,5.00,5.00,250.00,0.00,0,0
1 The visibility
Visibility.n=visi (m), alt min (m), alt max (m)
You can have several layers
2 Clouds
cloud.0=9,300.44,450.40,0.00,6,0,0,1,91.14,4,0
cloud.n=cloud type, alt min (m), alt max (m), ?, dens (1-8), ?, ?, prec , ?, ?, ?
Cloud type :
1 : Cirrus
8 : stratus
9 : cumulus
10 : cumulo nimbus Thunderstorm
Prec
0 : no rain or snow
1 : rain
2 : snow
3 Temperature
4 Wind
Wind_surface.n=alt max (m), speed(knts), bursts(knts), direction (°), ?, turbulence, shear
Turbulence :
0 : none
1 : occasionnal
2 : light
3 : moderated
5 : strong
Cisaillement :
0 : progressive
1 : moderated
2 : sharp
3 : strong
You can have several wind layers :
wind_layers_num=1
wind_surface=609.60,15.00,20.00,101.00,0.00,4,1
...... from 0 to 609m
wind.0=19.20,100.00,0.00,0.00,0.00,1,0
..... from (0 or 609m ?) to 19m