| Present weather type | NWS code |
|---|---|
| No precipitation | C |
| Precipitation | P |
| Drizzle | L |
| Rain | R |
| Snow | S |
| Ice pellets | IP |
| Freezing drizzle | ZL |
| Freezing rain | ZR |
NWS codes are used with an intensity indicator:
−(minus) for light precipitation- No indicator (space) for moderate precipitation
+(plus) for heavy precipitation
For example, R+ means heavy rain.