Our recipe on how to check weather forcasts:
Pressure systems and clouds
NATO:
+0
+0
+12
+18
+24
+30
+36
+42
+48
+54
+60
+66
+72
+78
+84
+90
+96
+102
+108
+114
+120
GFS:
+0
+6
+12
+18
+24
+30
+36
+42
+48
+54
+60
+66
+72
+78
+84
+90
+96
+102
+108
+114
+120
+126
+132
+144
+168
+180
Wind strength and direction
altitude 10m:
+0
+6
+12
+18
+24
+30
+36
+42
+48
+54
+60
+66
+72
+78
+84
+90
+96
+102
+108
+114
+120
+126
+132
+144
+168
+180
altitude 800m:
+0
+6
+12
+18
+24
+30
+36
+42
+48
+54
+60
+66
+72
+78
+84
+90
+96
+102
+108
+114
+120
+126
+132
+144
+168
+180
altitude 1500m:
+0
+6
+12
+18
+24
+30
+36
+42
+48
+54
+60
+66
+72
+78
+84
+90
+96
+102
+108
+114
+120
+126
+132
+144
+168
+180
altitude 3000m:
+0
+6
+12
+18
+24
+30
+36
+42
+48
+54
+60
+66
+72
+78
+84
+90
+96
+102
+108
+114
+120
+126
+132
+144
+168
+180
Rain
+0
+6
+12
+18
+24
+30
+36
+42
+48
+54
+60
+66
+72
+78
+84
+90
+96
+102
+108
+114
+120
+126
+132
+144
+168
+180
Clouds
METEOBLUE:
+3
+6
+9
+12
+15
+18
+21
+24
+27
+33
+35
+36
+39
+42
+45
+48
+51
+54
+57
+60
+63
+66
++69
+72
Some weather info sources
Austria
Slovenia
Switzerland
Italy
Poland:
ICM
Wind in the Karkonosze mountains
Finally some radiosonds (it’s good to check the inversion before you set off to fly):
Wetteronline
Westwind
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