National weather service codes
10 Mar 2011
Yes
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Standard codes used by the National Weather Service (NWS)

 
 
NWS codes are used with an intensity indicator: ‘+’ (plus) for heavy intensity, ‘-‘ (minus) for light and none (space) for moderate. For example, ‘R+’ means heavy rain.

The National Weather Service (NWS) codes reported by the Campbell Scientific Present Weather Sensor are as follows:

Weather type
NWS code
No precipitation
C
Precipitation
P
Drizzle
L
Rain
R
Snow
S
Ice pellets
IP
Freezing drizzle
ZL
Freezing rain
ZR
Graupel
SP
Snow grains
SG
Ice crystals
IC
Contact: Jeffery, Judith (STFC,RAL,RALSP)