Runway State Group (RSG) An 8-figure group which may be added to METAR from civil aerodromes.
27 = Rwy 27 or 27L
77 = Rwy 27R (50 added to the designator for "right" runway)
88 = All runways
99 = repetition of the last message as no new information received.
0 = Clear and dry
1 = Damp
2 = Wet or water patches
3 = Rime or frost covered (depth normally less than 1mm)
4 = Dry snow
5 = Wet snow
6 = Slush
7 = Ice
8 = compacted or rolled snow
9 = frozen ruts or ridges
/ = type of deposit not reported (e.g. due to rwy clearance in progress)
1 = 10% or less
2 = 11% to 25%
5 = 26% to 50%
9 = 51% to 100%
/ = not reported (e.g. due to rwy clearance in progress)
00 = less than 1mm
01 = 1mm etc to 90 = 90mm
91 = not used
92 = 10cm
93 = 15cm
94 = 20cm
95 = 25cm
96 = 30cm
97 = 35cm
98 = 40cm or more
99 = Rwy(s) non-operational due to snow, slush, ice, large drifts or runway clearance, but depth not reported.
// = depth of deposit operationally not significant or measurable.
28 = friction coefficient 0.28
38 = friction coefficient 0.38
or
91 = Braking action: Poor
92 = Braking action: Medium/Poor
93 = Braking action: Medium/Good
95 = Braking action: Good
99 = Figures unreliable (e.g. if equipment has been used which does not measure satisfactorily in slush or snow.)
// = Braking action not reported (e.g. runway not operational; aerodrome closed; etc.)
Ещё видео!