Campbell Scientific PWS100 Present Weather Sensor User 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