CS120A and CS125 Visibility and Present Weather Sensors
28
METAR Present Weather Full format
ST
X
M
es
sag
e I
D
Se
ns
or ID
Sy
ste
m
sta
tu
s
M
es
sag
e i
nt
er
val
V
isib
ility
d
ista
nc
e
V
isib
ility
u
nits
A
ve
ra
gi
ng dur
at
io
n
U
ser
al
ar
m
s
Sy
stem
al
ar
m
s
12
ch
ar
act
er
s
Pa
rtic
le
c
ou
nt (
m
in
ute
)
In
te
ns
ity
(m
m
/h
)
SYNOP
C
od
e
M
ET
A
R Co
de
Tem
per
at
ur
e (
deg
C
)
Re
la
tiv
e h
um
id
ity
*
Che
cks
um
(C
CIT
T)
ET
X
Car
riag
e R
et
ur
n
Li
ne f
eed
0x02
8
M
o
r F
0 0
0 0 0
0 0…
XXXX
0x03
0x0D
0x0A
8 0 0 12 20504 M 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.00 0 NSW 24.2 -99 40A2 (Example message)
Relative humidity is only available if a CS215 temperature and
RH sensor is attached. If not this field is “-99”.
11.4 Messages with Generic SYNOP Present Weather Codes
(CS125 only)
These messages include simplified, generic present weather codes such as 70
for snow which may be required for some data collection systems.
Generic SYNOP Present Weather Basic format
ST
X
M
es
sag
e I
D
Se
ns
or
ID
Sy
ste
m
sta
tu
s
V
isib
ility
d
ista
nc
e
V
isib
ility
u
nits
Ge
ne
ric
S
YNOP
c
od
e
SYNOP
c
od
e
M
ET
A
R co
de
Che
cks
um
(C
CIT
T)
ET
X
Car
riag
e
re
tu
rn
Li
ne f
eed
0x02
9
M
o
r F
XXXX
0x03
0x0D
0x0A
9 0 0 20481 M 0 0 NSW 73DF (Example message)
*NOTE
