Campbell Scientific PWS100 Present Weather Sensor - Manual (Page 109)

Appendix A. PWS100 Output Codes
Blowing or drifting
snow or sand, visibility
less than 1 km 29 DRSA /
BLSA /
DRSN /
BLSN
- - - -
FOG 30 FG - - - ≤1 km
Fog or ice fog, in
patches 31 BCFG - - - ≤1 km
Fog or ice fog, has
become thinner during
the past hour 32 FG - - - ≤1 km
Fog or ice fog, no
appreciable change
during the past hour 33 FG - - - ≤1 km
Fog or ice fog, has
begun or become
thicker during the past
hour 34 FG - - - ≤1 km
Fog, depositing rime 35 FZFG - - - ≤1 km
Reserved 36-39 - - - - -
PRECIPITATION 40 UP P P No Limit -
Precipitation, slight or
moderate
2
41 -UP / UP P- / P P- / P i<6.1 4 -
Precipitation, slight 41 -UP P- P- i<1 4 -
Precipitation,
moderate 41 UP P P 1≤i<6.1 4 -
Precipitation, heavy 42 +UP P+ P+ i≥6.1 4 -
Liquid precipitation,
slight or moderate
2
43 -UP / UP P- / P P-/ P i<5.3 4 -
Liquid precipitation,
slight 43 -UP P- P- i<1.3 4 -
Liquid precipitation,
moderate 43 UP P P 1.3≤i<5.3 4 -
Liquid precipitation,
heavy 44 +UP P+ P+ i≥5.3 4 -
Solid precipitation,
slight or moderate
2
45 -UP / UP P- / P P- / P i<6.7 4 -
Solid precipitation,
slight 45 -UP P- P- i<1.5 4 -
Solid precipitation,
moderate 45 UP P P 1.5≤i<6.7 4 -
Solid precipitation,
heavy 46 +UP P+ P+ i≥6.7 4 -
A-3